APPLICATION BASED MIX PROPORTIONING FOR SELFCOMPACTING CONCRETE
|
|
- Sybil Randall
- 7 years ago
- Views:
Transcription
1 APPLICATION BASED MIX PROPORTIONING FOR SELFCOMPACTING CONCRETE Anirwan Sengupta*, IIT Madras, Chennai, India Manu Santhanam, IIT Madras, Chennai, India 31st Conference on OUR WORLD IN CONCRETE & STRUCTURES: August 2006, Singapore Article Online Id: The online version of this article can be found at: This article is brought to you with the support of Singapore Concrete Institute All Rights reserved for CI Premier PTE LTD You are not Allowed to re distribute or re sale the article in any format without written approval of CI Premier PTE LTD Visit Our Website for more information
2 31 st Conference on OUR WORLD IN CONCRETE & STRUCTURES: August 2006, Singapore APPLICATION BASED MIX PROPORTIONING FOR SELF- COMPACTING CONCRETE Anirwan Sengupta*, IIT Madras, Chennai, India Manu Santhanam, IIT Madras, Chennai, India Abstract EFNARC 2002 was the first internationally recognized set of guidelines and specifications for self-compacting concrete. However, it proposed of a single range of workability for all applications. Subsequent studies from Europe indicated that different applications require the self-compacting concrete to have different ranges of flowability and segregation resistance. This aspect has been incorporated in EFNARC SCC is now classified into different consistency classes based on its slump flow and flow time through V Funnel. Attempts were made to arrive at optimum mix proportions for various consistency classes of SCC with locally available materials. Adequate passing ability for all mixes was ensured by keeping the proportion of coarse aggregates low as the aggregates had high degree of flakiness and elongation. Higher slump-flow mixes were found to require large paste contents, and the V-Funnel time was found to be mainly influenced by the water-powder ratio and the dosages of superplasticizer and/or VMA. Keywords: SCC, consistency, slump flow, V-funnel, VMA 1. Introduction Self-compacting concrete is yet to find a regular place in field concreting practice. Paucity of codes and standards has been one of the reasons for this slow growth in its popularity, as practicing engineers feel more comfortable and secure when they are working within the jurisdiction of codes and specifications, unlike their counterparts in research. JCSE (Japan), UNI (Italy) and EFNARC (European Union) have drafted codes for SCC in the early part of this millennium, out of which the latter is internationally recognized. The first version of the EFNARC guidelines [1] proposed self compacting concrete with single range of workability for all applications. However, for SCC, as in the case of conventional vibrated concretes, the recommended range of workability for slender and relatively congested members (like columns, piles etc.) is much higher than that of large members (like raft, slab or ramp). Later on, EFNARC classified SCC in its new guidelines [2] into different consistency classes according to different applications based on the studies of Walraven [3]. The workability of self-compacting concrete is measured in terms of different parameters, namely filling ability, segregation resistance and passing ability. Although several test methods and apparatus have been developed to characterize the properties of SCC, no single method or even combination of tests has achieved universal approval. This is another reason of lack of popularity of SCC among field
3 engineers. The codes and specifications, while written to facilitate the users to achieve the desired results at site, are perceived more as documents that are to be conformed to at any cost. It should be understood that the codes and the specifications are just means to achieve the ends. In this paper an attempt is made to understand the requirements for different application based self-compacting concretes and develop a means to arrive at the required proportions. 2. Different Classes Of Self-Compacting Concrete The conventionally vibrated concretes are traditionally classified into different grades of strength only. However, they can also be classified in terms of different grades of workability in terms of slump, exposure class, placement temperature or allowable Nominal Maximum Size of Aggregate (NMSA). In Indian Nuclear Projects even conventionally vibrated concretes are specified for multiple parameters. A concrete of grade H25A20/150 25/23 0 C would mean that the concrete is of High density, i.e. a density greater than 3630 kg/m 3, with a 28 day characteristic strength of 25 MPa, NMSA of 20mm, slump requirement at the point of pour of mm and the maximum allowable temperature at the point of pour of 23 0 C. In the present day scenario with the advent of Ready Mix Concrete industries and a shift of specifications from being prescription based to performance based, multiple grades of concretes help to define the contractual liabilities of performing agencies. Self-compacting concrete can have different rheological grades, strength grades or durability grades etc. based on the design requirements. In this paper different application based rheological grades of SCC are discussed. Table 1 gives an overview of the different classes of SCC as described in EFNARC 2005 [2]. Comparisons with EFNARC 2002 [1] specifications are also provided. The flow and viscosity classes required for different applications are schematically represented in Figure 1. Table 1. Workability criteria for SCC Flow Classes EFNARC EFNARC Single Class SF-1 SF-2 SF-3 Slump Flow (mm) Viscosity Classes EFNARC EFNARC Single Class VS-1 / VF-1 VS-2 / VF-2 T 500 (seconds) > 2 V Funnel Time Passing Ability Classes EFNARC EFNARC Single Class PA-1 PA-2 Blocking Ratio in L-Box Barrier in no. of rebars Segregation Resistance EFNARC EFNARC Classes Single Class SR-1 SR-2 Percentage There are conflicts among different class boundaries in EFNARC 2005 as found in Table A-1 to A-4 (pages 49-50) and Table A-6 (page 51). The values given in the former are accepted here to avoid ambiguity.
4 lf Figure 1. Different consistency classes of Self Compacting Concrete [2] te (EFNARC, 2005) 3. Materials Used The properties of materials used are described in Table 2. The combined gradation of aggregates is presented in Figure 2. Table 2. Properties of materials used in the study Cement Procured from single source; 53 Grade Ordinary Portland Cement conforming to IS [4] Specific gravity: 3.13, Fineness: 308 m 2 /kg Fly Ash Conforming to Type F Fly Ash as per ASTM [5] Specific gravity: 2.21, Fineness: 450 m 2 /kg Granite Dust Fine powder procured from tile industry Specific gravity: 2.67, Fineness: 500 m 2 /kg Fine Aggregate River Sand conforming to Zone III of IS [6] Specific gravity: 2.55, Fineness modulus: 2.51 Coarse Aggregate Crushed Granite conforming to IS [7] Specific gravity: 2.89 Super Plasticizer VMA Conforming to ASTM C 494 [8], Type G with a generic base of Poly Carboxylate Ether ; Total dissolved solids = 35% Polysaccharide based with 2% Active solids
5 Combined Aggregate Gradation for SCC Granite Dust not considered CA20 : CA10 : NS = 13.5 : 31.5 : 55 % age Passing Sieve Size (mm) 4. Mixture Proportioning Combined Grading Figure 2. Combined Aggregate Gradation used for development of SCC The methodology adopted in this study is that of trial and error by slight modification of EFNARC-2002 method. The aim was to design six distinct consistency classes of SCC as follows (see Figure 1 for clarifications): A SF3 VF1 C SF2 VF1 E SF1 VF1 B SF3 VF2 D SF2 VF1 F SF1 VF1 Then particular consistency target ranges were set for each class of mix based on the recommendations of EFNARC These are summarized in Tables 3 and 4. Table 3 -Table of Flow Classes of SCC (After EFNARC 2005) EFNARC 2005 (Table A-1) Flow Classes SF-1 SF-2 SF-3 Target Slump Flow [ TSF] (mm) Lower Limit for Slump Flow [LLSF] (mm) Upper Limit for Slump Flow [ULSF] (mm) Table 4 - Table of Viscosity Classes of SCC (After EFNARC 2005) EFNARC (Table A-2) Viscosity Classes VF-1 VF-2 Target V- Funnel Time [TVF] (sec) 5 17 Lower Limit for V- Funnel Time [ LLVF] (sec) 2 9 Upper Limit for V- Funnel Time [ ULVF] (sec) 8 25
6 The acceptable results for Segregation Resistance for all mixes were limited to: VF (5 ) VF (0 ) 3 sec, i.e. the V-Funnel time at 5 minutes should not be more than 3 seconds than that at 0 minutes. In addition, the acceptable passing ability was defined as: 0.8 < L-Box (h 2 /h 1 ) < 1.0, i.e. the height of fill at the end should not be less than 0.8 times the height of fill at the base of the L-Box. It was decided that the powder composition for all the mixes shall be kept same so that it can be correlated for further studies. Based on the literature review and past experience, the paste volumes for SF-3, SF-2 and SF-1 were initially fixed at 41%, 38% and 35% respectively and a binary powder composition was selected as Cement: Fly Ash = 60: 40. However, for mixes having this level of replacement, the setting time was found to be very high especially when the mixes had high dosages of SP. This was overcome by replacing some part of the Fly Ash by granite powder. The fineness and comparatively higher specific gravity of granite powder also improved the stability of the mix. The first attempted mix was SF3-VF2. The coarse to fine aggregate ratio was initially kept at 50:50 with the coarse aggregates of 20 mm and 10 mm combined in the ratio 40:60. The dosage of admixture was adjusted during trials as per the requirements. The Slump-flow, T50, V-Funnel time (0 and 5 ) and Blocking Ratio as per L-Box test were conducted for conformance to the targeted consistency class. The shortcomings (if any) of the mix were analyzed as per the guidelines suggested in EFNARC 2005 and suitable corrective measures were adopted, in terms of adjusting the mixture proportions, until the requirements were met. Finally, the mixes that satisfied the required criteria were chosen to cast specimens for evaluation of hardened properties. Though the setting times of the mixes were not checked, mixes that were not de-mouldable next day were rejected and redesigned. The final proportions which met the requirements of the different consistency classes are presented in Table 5. The mix of consistency class SF3-VF1 could not be designed with NMSA 20 mm as a mix with such a high flow and low viscosity becomes prone to segregation when NMSA is greater than 12.5 mm. The powder contents for the mixes ranged from 512 kg/m 3 (for SF1-VF1) to 720 kg/m 3 (for SF3- VF2). In general, powder contents chosen were higher when higher flow and greater stability were desired. Table 5. Mix Proportions for different consistency classes of SCC Mix Designation (Consistenc y Class) Cement Fly Ash Stone Dust Water 20 mm 12.5 mm Sand SP VMA Kg/m 3 Kg/m 3 Kg/m 3 Kg/m 3 Kg/m 3 Kg/m 3 Kg/m 3 Kg/m 3 Kg/m 3 A (SF3-VF1) B (SF3-VF2) C (SF2-VF1) D (SF2-VF2) E (SF1-VF1) F (SF1-VF2) Results The fresh and hardened properties of different classes of self-compacting concrete are presented in Table 6. From the results presented in Table 6, it can be said that the mixes had fundamentally different flow characteristics, although all of them qualified as SCC. Mixes with higher powder (cement + fly ash) contents produced higher flows, and also produced concrete with higher compressive strengths, as a result of their lower water to binder ratios. In each flow category, the increase of viscosity (i.e. change from VF1 to VF 2) resulted in increased compressive strength.
7 Mix Designation (Consistency Class) Table 6. Fresh and Hardened Properties of Different Classes of SCC Slump Flow FRESH CONCRETE PROPERTIES COMPRESSIVE STRENGTH T-50 VF 0 VF 5 L-Box 3 D 7 D 28 D mm sec sec sec h 2 h 1 MPa MPa MPa A (SF3-VF1) B (SF3-VF2) C (SF2-VF1) D (SF2-VF2) E (SF1-VF1) F (SF1-VF2) A good correlation between T-50 of Abram s slump flow and the initial V funnel time was found (see Figure 3). This result is expected since both these tests reflect on the viscosity of the SCC. This was in agreement with the results obtained previously in the laboratory [9]. VF(0) (secs) Relation between T-50 and VF(0) y = x R 2 = T-50 (secs) Figure 3. Comparison of T-50 and VF (0) values A cube specimen from each mixture was vertically cut using a diamond tipped saw to observe the distribution of aggregates in it. The cut sections of the 6 mixtures are shown in Figure 4. The uniform aggregate size distribution throughout the section of all specimens indicates good segregation resistance.
8 A B C D E F Figure 4. Cut sections from all mixtures indicating good segregation resistance 5. CONCLUSIONS i. Six different consistency classes of SCC as per EFNARC-2005 were produced in the laboratory using locally available materials. All mixes satisfied the criteria set forth by EFNARC, and showed good passing ability and segregation resistance. ii. Higher powder contents were needed to design SCC for high flow combined with stability. The higher powder content mixtures also resulted in the highest compressive strengths. iii. A good correlation was found between the initial V-funnel flow time and the T-50 from slump flow test. REFERENCES 1. Specification and Guidelines for Self-Compacting Concrete February 2002, The European Federation of Specialist Construction Chemicals and Concrete Systems (EFNARC). 2. The European Guidelines for Self-Compacting Concrete Specification, Production and Use May 2005, The European Federation of Specialist Construction Chemicals and Concrete Systems (EFNARC). 3. J. Walraven, Structural Aspects of Self-Compacting Concrete, Proceedings of the 3 rd International RILEM Symposium on Self-Compacting Concrete, O. Wallevik and I. Nielsson, Ed., RILEM Publications, 2003, pp IS , Specification for 53 grade ordinary Portland cement, Bureau of Indian Standards, New Delhi, India. 5. ASTM C618 00, Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use as a Mineral Admixture in Concrete, ASTM, Philadelphia, USA. 6. IS , Specification for coarse and fine aggregates from natural sources for concrete, Bureau of Indian Standards, New Delhi, India. 7. IS , Methods of test for aggregates for concrete - Part I to Part VIII, Bureau of Indian Standards, New Delhi, India. 8. ASTM C494 99m, Standard Specification for Chemical Admixtures for Concrete, ASTM, Philadelphia, USA. 9. Santhanam, M., and Mahesh, Y. V. S. S. U., Simple test methods to characterise the rheology of self compacting concrete, Indian Concrete Journal, Vol.78, No.6, June 2004, pp
EXPERIMENTAL INVESTIGATION ON BEHAVIOUR OF NANO CONCRETE
International Journal of Civil Engineering and Technology (IJCIET) Volume 7, Issue 2, March-April 2016, pp. 315 320, Article ID: IJCIET_07_02_027 Available online at http://www.iaeme.com/ijciet/issues.asp?jtype=ijciet&vtype=7&itype=2
More informationStrength and Workability Characteristics of Concrete by Using Different Super Plasticizers
International Journal of Materials Engineering 12, 2(1): 7-11 DOI: 1.923/j.ijme.11.2 Strength and Workability Characteristics of Concrete by Using Different Super Plasticizers Venu Malagavelli *, Neelakanteswara
More informationEFFECT OF SUPERPLASTICIZERS ON WORKABILITY AND STRENGTH OF CONCRETE
EFFECT OF SUPERPLASTICIZERS ON WORKABILITY AND STRENGTH OF CONCRETE Saeed Ahmad*, University of Engineering & Technology,Taxila, Pakistan Muhammad Nawaz, University of Engineering & Technology, Taxila,
More informationEffect of basalt aggregates and plasticizer on the compressive strength of concrete
International Journal of Engineering & Technology, 4 (4) (2015) 520-525 www.sciencepubco.com/index.php/ijet Science Publishing Corporation doi: 10.14419/ijet.v4i4.4932 Research Paper Effect of basalt aggregates
More information1.5 Concrete (Part I)
1.5 Concrete (Part I) This section covers the following topics. Constituents of Concrete Properties of Hardened Concrete (Part I) 1.5.1 Constituents of Concrete Introduction Concrete is a composite material
More informationAnalysis of M35 and M40 grades of concrete by ACI and USBR methods of mix design on replacing fine aggregates with stone dust
Analysis of M35 and M40 s of concrete by and methods of mix design on replacing fine aggregates with stone dust Satwinder Singh 1, Dr. Hemant Sood 2 1 M. E. Scholar, Civil Engineering, NITTTR, Chandigarh,
More informationChapter 8 Design of Concrete Mixes
Chapter 8 Design of Concrete Mixes 1 The basic procedure for mix design is applicable to concrete for most purposes including pavements. Concrete mixes should meet; Workability (slump/vebe) Compressive
More informationShotcrete Quality Control and Testing for an Underground Mine in Canada
Shotcrete Quality Control and Testing for an Underground Mine in Canada By Dudley R. (Rusty) Morgan and Mazin Ezzet AMEC Earth & Environmental, a division of AMEC Americas Limited SHOTCRETE FOR AFRICA
More informationEvaluation of M35 and M40 grades of concrete by ACI, DOE, USBR and BIS methods of mix design
Evaluation of M35 and M40 grades of concrete by ACI, DOE, USBR and BIS methods of mix design Sharandeep Singh 1, Dr.Hemant Sood 2 1 M. E. Scholar, CIVIL Engineering, NITTTR, Chandigarh, India 2Professor
More informationEFFECT OF NANO-SILICA ON CONCRETE CONTAINING METAKAOLIN
International Journal of Civil Engineering and Technology (IJCIET) Volume 7, Issue 1, Jan-Feb 2016, pp. 104-112, Article ID: IJCIET_07_01_009 Available online at http://www.iaeme.com/ijciet/issues.asp?jtype=ijciet&vtype=7&itype=1
More informationA COMPREHENSIVE STUDY ON PARTIAL REPLACEMENT OF CEMENT WITH SUGARCANE BAGASSE ASH, RICE HUSK ASH & STONE DUST
International Journal of Civil Engineering and Technology (IJCIET) Volume 7, Issue 3, May June 2016, pp. 163 172, Article ID: IJCIET_07_03_016 Available online at http://www.iaeme.com/ijciet/issues.asp?jtype=ijciet&vtype=7&itype=3
More informationCOMPARISON OF CORE AND CUBE COMPRESSIVE STRENGTH OF HARDENED CONCRETE
COMPARISON OF CORE AND CUBE COMPRESSIVE STRENGTH OF HARDENED CONCRETE M. Yaqub*, University of Engineering and Technology Taxila, Pakistan M. Anjum Javed, Concordia University, Canada 31st Conference on
More informationPROPERTIES AND MIX DESIGNATIONS 5-694.200
September 1, 2003 CONCRETE MANUAL 5-694.200 5-694.210 PROPERTIES OF CONCRETE PROPERTIES AND MIX DESIGNATIONS 5-694.200 Inspectors should familiarize themselves with the most important properties of concrete:
More informationNOTE: FOR PROJECTS REQUIRING CONTRACTOR MIX DESIGN, THE DESIGN PROCEDURES ARE SPECIFIED IN THE SPECIAL PROVISIONS OF THE CONTRACT.
September 1, 2003 CONCRETE MANUAL 5-694.300 MIX DESIGN 5-694.300 NOTE: FOR PROJECTS REQUIRING CONTRACTOR MIX DESIGN, THE DESIGN PROCEDURES ARE SPECIFIED IN THE SPECIAL PROVISIONS OF THE CONTRACT. 5-694.301
More informationVikrant S. Vairagade, Kavita S. Kene, Dr. N. V. Deshpande / International Journal of Engineering Research and Applications (IJERA)
Investigation on Compressive and Tensile Behavior of Fibrillated Fibers Reinforced Concrete Vikrant S. Vairagade*, Kavita S. Kene*, Dr. N. V. Deshpande** * (Research Scholar, Department of Civil Engineering,
More informationGRADATION OF AGGREGATE FOR CONCRETE BLOCK
GRADATION OF AGGREGATE FOR CONCRETE BLOCK Although numerous papers have been written concerning the proper gradation for concrete mixes, they have generally dealt with plastic mixes, and very little published
More informationInfluence of Nano-SiO 2 and Microsilica on Concrete Performance
Influence of Nano-SiO 2 and Microsilica on Concrete Performance M. Nili *a, A. Ehsani a, and K. Shabani b a Civil Eng., Dept., Bu-Ali Sina University, Hamedan, I.R. Iran b Eng., Research Institute of Jahad-Agriculture
More informationACCELERATING ADMIXTURE RAPIDITE -ITS EFFECT ON PROPERTIES OF CONCRETE
International Journal of Civil Engineering and Technology (IJCIET Volume 6, Issue 12, Dec 215, pp. 58-65, Article ID: IJCIET_6_12_6 Available online at http://www.iaeme.com/ijciet/issues.asp?jtype=ijciet&vtype=6&itype=12
More informationSTRENGTH PROPERTIES ON FLY ASH BASED GEO POLYMER CONCRETE WITH ADMIXTURES
International Journal of Civil Engineering and Technology (IJCIET) Volume 7, Issue 3, May June 2016, pp. 347 353, Article ID: IJCIET_07_03_035 Available online at http://www.iaeme.com/ijciet/issues.asp?jtype=ijciet&vtype=7&itype=3
More informationSTRENGTH OF CONCRETE INCORPORATING AGGREGATES RECYCLED FROM DEMOLITION WASTE
STRENGTH OF CONCRETE INCORPORATING AGGREGATES RECYCLED FROM DEMOLITION WASTE R. Kumutha and K. Vijai Department of Civil Engineering, Sethu Institute of Technology, Pulloor, Kariapatti, India E-Mail: kumuthar@yahoo.co.in,
More informationSTRENGTH CHARACTERISTICS OF HYBRID FIBER REINFORCED SELF COMPACTING CONCRETE SUBJECTED TO SUSTAINED ELEVATED TEMPERATURE
STRENGTH CHARACTERISTICS OF HYBRID FIBER REINFORCED SELF COMPACTING CONCRETE SUBJECTED TO SUSTAINED ELEVATED TEMPERATURE K Ravi*, K.L. Society s Gogte Institute of Technology, Belgaum, India K B Prakash,
More informationExample Specification for Concrete using Current Building Code Requirements
Example Specification for Concrete using Current Building Code Requirements DISCLAIMER: This specification is an example that accompanies a seminar titled The P2P Initiative: Performance-based Specs for
More informationERMCO. The European Guidelines for Self-Compacting Concrete. Specification, Production and Use
ERMCO The European Guidelines for Self-Compacting Concrete Specification, Production and Use May 2005 FOREWORD These Guidelines and specifications were prepared by a project group comprising five European
More informationEXPERIMENTAL STUDY OF EFFECT OF SODIUM SILICATE (NA 2 SIO 3 ) ON PROPERTIES OF CONCRETE
International Journal of Civil Engineering and Technology (IJCIET Volume 6, Issue 12, Dec 2015, pp. 39-47, Article ID: IJCIET_06_12_004 Available online at http://www.iaeme.com/ijciet/issues.asp?jtype=ijciet&vtype=6&itype=12
More informationStone crusher dust as a fine aggregate in Concrete for paving blocks
Stone crusher dust as a fine aggregate in Concrete for paving blocks Radhikesh P. Nanda 1, Amiya K. Das 2, Moharana.N.C 3 1 Associate Professor, Department of Civil Engineering, NIT Durgapur, Durgapur
More informationUltra-High Strength Concrete Mixtures Using Local Materials
UltraHigh Strength Concrete Mixtures Using Local Materials Srinivas Allena 1 and Craig M. Newtson 2 1 New Mexico State University, Civil Engineering Department, P.O. Box 30001, MSC 3CE, Las Cruces, NM
More informationPavement Thickness. esign and RCC-Pave Software. Roller-Compacted Concrete Pavement: Design and Construction. October 24, 2006 Atlanta, Georgia
Roller-Compacted Concrete Pavement: Design and Construction Pavement Thickness esign and RCC-Pave Software Gregory E. Halsted, P.E. Pavements Engineer Portland Cement Association October 24, 2006 Atlanta,
More informationAPPRAISAL ON THE STRENGTH OF CONCRETE PRODUCED WITH VARYING AGGREGATE SIZE
International Journal of Civil Engineering and Technology (IJCIET) Volume 7, Issue 3, May June 2016, pp. 233 240, Article ID: IJCIET_07_03_023 Available online at http://www.iaeme.com/ijciet/issues.asp?jtype=ijciet&vtype=7&itype=3
More informationSTATE OF OHIO DEPARTMENT OF TRANSPORTATION SUPPLEMENTAL SPECIFICATION 888 PORTLAND CEMENT CONCRETE PAVEMENT USING QC/QA.
STATE OF OHIO DEPARTMENT OF TRANSPORTATION SUPPLEMENTAL SPECIFICATION 888 PORTLAND CEMENT CONCRETE PAVEMENT USING QC/QA October 21, 2011 888.01 General 888.02 Materials 888.03 Concrete Proportioning 888.04
More informationTABLE OF CONTENTS CHAPTER NO. TITLE PAGE NO. ABSTRACT
vii TABLE OF CONTENTS CHAPTER NO. TITLE PAGE NO. ABSTRACT LIST OF TABLES LIST OF FIGURES LIST OF SYMBOLS AND ABBREVIATIONS iii xvii xix xxvii 1 INTRODUCTION 1 1.1 GENERAL 1 1.2 OBJECTIVES AND SCOPE OF
More informationE-learning tools for understanding and testing of a range of concrete properties
E-learning tools for understanding and testing of a range of concrete properties Prof. C.S.Poon Department of Civil and Structural Engineering, The Hong Kong Polytechnic University Team members Dr. Wallace
More informationQuality control: Annex-A.
Quality control: Quality of the constructed work has been checked by our staff as per frequency and provision mentioned section 900 in MoRT&H and as per provision mentioned in Concession Agreement. The
More informationCommonwealth of Pennsylvania PA Test Method No. 632 Department of Transportation October 2013 5 Pages LABORATORY TESTING SECTION. Method of Test for
Commonwealth of Pennsylvania PA Test Method No. 632 Department of Transportation 5 Pages LABORATORY TESTING SECTION Method of Test for TIME OF SETTING OF CONCRETE MIXTURES BY PENETRATION RESISTANCE 1.
More informationINFLUENCE OF THE PROPERTIES OF SELF-COMPACTING CONCRETE ON THE EFFECT OF AIR ENTRAINMENT
INFLUENCE OF THE PROPERTIES OF SELF-COMPACTING CONCRETE ON THE EFFECT OF AIR ENTRAINMENT Janusz Szwabowski 1, Beata Łaźniewska 2 1 Prof. dr hab. inŝ., Department of Building Processes, Faculty of Civil
More informationAN EXPERIMENTAL STUDY ON STRENGTH AND FRACTURE PROPERTIES OF SELF HEALING CONCRETE
International Journal of Civil Engineering and Technology (IJCIET) Volume 7, Issue 3, May June 2016, pp. 398 406, Article ID: IJCIET_07_03_041 Available online at http://www.iaeme.com/ijciet/issues.asp?jtype=ijciet&vtype=7&itype=3
More informationProperties of Concrete with Blast-Furnace Slag Cement Made from Clinker with Adjusted Mineral Composition
Properties of Concrete with Blast-Furnace Slag Cement Made from Clinker with Adjusted Mineral Composition Atsushi YATAGAI 1, Nobukazu NITO 1, Kiyoshi KOIBUCHI 1, Shingo MIYAZAWA 2,Takashi YOKOMURO 3 and
More informationSCG / SELF CONSOLIDATING GROUT
SCG SELF CONSOLIDATING GROUT U. S. A. DIVISION MASONRY PRODUCTS 04 Structurally Sound. Highly Fluid. SPEC MIX Self Consolidating Grout (SCG) is a dry preblended grout specifically designed to be highly
More informationSPECIAL COMPOUND FOR RHEOPLASTIC AND ANTI-CORROSION SUPERCONCRETE WITH VERY HIGH DURABILITY
BS 40 M6 MuCis mono SPECIAL COMPOUND FOR RHEOPLASTIC AND ANTI-CORROSION SUPERCONCRETE WITH VERY HIGH DURABILITY LE CE LE type: "expansive binder which allows the production of extremely fluid concrete
More informationTesting and appraisal of Lucobit polymer effect as an additive on asphalt mixture performance
Abstract Testing and appraisal of polymer effect as an additive on asphalt mixture performance Hamid Sabbagh mollahosseini*,golazin Yadollahi**, Ershad Amoosoltani*** *, ***Executive of Engineering and
More informationLab 1 Concrete Proportioning, Mixing, and Testing
Lab 1 Concrete Proportioning, Mixing, and Testing Supplemental Lab manual Objectives Concepts Background Experimental Procedure Report Requirements Discussion Prepared By Mutlu Ozer Objectives Students
More informationGUIDELINES FOR TESTING FRESH SELF-COMPACTING CONCRETE
Growth Contract No. GRD2-2000-30024 GUIDELINES FOR TESTING FRESH SELF-COMPACTING CONCRETE Principal author: G. DE SCHUTTER September 2005 European Research Project: MEASUREMENT OF PROPERTIES OF FRESH SELF-COMPACTING
More informationSECTION 18 - CAST IN PLACE HIGH PERFORMANCE CONCRETE (HPC)
SECTION 18 - CAST IN PLACE HIGH PERFORMANCE CONCRETE (HPC) 1.0 DESCRIPTION This section details the requirements for materials and methods in the proportioning, mixing, transporting, placing, finishing
More informationEXPERIMENTAL INVESTIGATION ON STRENGTH AND DURABILITY PROPERTIES OF HYBRID FIBER REINFORCED CONCRETE
EXPERIMENTAL INVESTIGATION ON STRENGTH AND DURABILITY PROPERTIES OF HYBRID FIBER REINFORCED CONCRETE SUDHEER JIROBE 1, BRIJBHUSHAN.S 2, MANEETH P D 3 1 M.Tech. Student, Department of Construction technology,
More informationAN EXPERIMENTAL INVESTIGATION ON MECHANICAL PROPERTIES OF MORTAR WITH ADMIXTURE
International Journal of Civil Engineering and Technology (IJCIET) Volume 7, Issue 2, March-April 2016, pp. 226 233, Article ID: IJCIET_07_02_020 Available online at http://www.iaeme.com/ijciet/issues.asp?jtype=ijciet&vtype=7&itype=2
More informationProperties of Fresh Concrete
Properties of Fresh Concrete Introduction The potential strength and durability of concrete of a given mix proportion is very dependent on the degree of its compaction. It is vital, therefore, that the
More informationMalaysian Journal of Civil Engineering 26(3):382-396 (2014)
Malaysian Journal of Civil Engineering 26(3):382-396 (2014) PROPERTIES OF GLASS FIBER REINFORCED SELF COMPACTING CONCRETE Abdul Rahman Mohd Sam *, Roslli Noor Mohamed, Mohd. Yunus Ishak & Wong Choon Siang
More informationEXPERIMENT NO.1. : Vicat s apparatus, plunger
EXPERIMENT NO.1 Name of experiment:to determine the percentage of water for normal consistency for a given sample of cement Apparatus : Vicat s apparatus with plunger of 10mm dia, measuring cylinder, weighing
More informationINFLUENCE OF STEEL FIBERS AS ADMIX IN NORMAL CONCRETE MIX
International Journal of Civil Engineering and Technology (IJCIET) Volume 7, Issue 1, Jan-Feb 2016, pp. 93-103, Article ID: IJCIET_07_01_008 Available online at http://www.iaeme.com/ijciet/issues.asp?jtype=ijciet&vtype=7&itype=1
More informationMeasurement of properties of fresh self-compacting concrete. Final Report
European Union Growth Contract No. G6RD-CT-2001-00580 November 2001 October 2004 Measurement of properties of fresh self-compacting concrete Final Report September 2005 PROJECT CO-ORDINATOR : ACM Centre,
More informationEvaluation of Initial Setting Time of Fresh Concrete
Evaluation of Initial Setting Time of Fresh Concrete R R C Piyasena, P A T S Premerathne, B T D Perera, S M A Nanayakkara Abstract According to ASTM 403C, initial setting time of concrete is measured based
More informationAdvancements in Permeable Pavements
Advancements in Permeable Pavements Engineers Workshop Saint Vincent College March 14 & 15 2013 Permeable Pavements There are several different words that are used to describe a pavement that water drains
More informationStudy of durability of sprayed concrete
Study of durability of sprayed concrete ADAM HUBÁČEK, RUDOLF HELA Department of Technology of Building Materials and Components Brno University of Technology, Faculty of Civil Engineering Veveří 95, 602
More information"APPLICATION OF COAL COMBUSTION BY-PRODUCTS IN MASONRY PRODUCTION" Tarun R. Naik Director, Center for By-Products Utilization
"APPLICATION OF COAL COMBUSTION BY-PRODUCTS IN MASONRY PRODUCTION" By Tarun R. Naik Director, Center for By-Products Utilization Lihua Wei Research Assistant Center for By-Products Utilization Department
More informationSTUDY OF STRENGTH OF CONCRETE WITH PALM OIL FUEL ASH AS CEMENT REPLACEMENT
International Journal of Civil Engineering and Technology (IJCIET) Volume 7, Issue 3, May June 2016, pp. 337 341, Article ID: IJCIET_07_03_033 Available online at http://www.iaeme.com/ijciet/issues.asp?jtype=ijciet&vtype=7&itype=3
More informationNorthEast Transportation Training and Certification Program (NETTCP) Course Registration Form
(NETTCP) Course Registration Form Interim Certification (Cost $300 members / $425 non-members) HMA Plant Technician* HMA Paving Inspector* Soils & Aggregate Inspector* Soils & Aggregate Lab Technician*
More informationTremie Concrete CM 420 CM 420 CM 420 CM 420. Temporary Structures. Tremie Concrete
Tremie Concrete Underwater concrete plays an important role in the construction of offshore structures. It may be used to tie together various elements in composite action (i.e., to tie piling to the footing).
More informationAPPENDIX 2 MIX DESIGNS. Chapter 4: mix design calculation sheet for 40 N/mm 2 strength)
APPENDIX 2 MIX DESIG All mixes in this study were designed in accordance with the Building Research Establishment (BRE 1992) method, recommended by the UK Department of the Environment. Reference should
More informationCGA Standard Practices Series. Article 600 Standard for Pozzolan Enhanced Grouts Used in Annular Seals & Well Destruction
California Groundwater Association An NGWA Affiliate State PO Box 14369 Santa Rosa CA 95402 707-578-4408 fax: 707-546-4906 email: cga@groundh2o.org website: www.groundh2o.org CGA Standard Practices Series
More information:: ARTIFICIAL SAND :: Zone One Sand : Zone Two Sand :
:: ARTIFICIAL SAND :: Natural sand are weathered and worn out particles of rocks and are of various grades or size depending on the accounting of wearing. The main natural and cheapest resource of sand
More informationSTATE OF THE ART OF CONCRETE PAVING BLOCKS IN SRI LANKA (CPBs)
STATE OF THE ART OF CONCRETE PAVING BLOCKS IN SRI LANKA (CPBs) Dr K Baskaran, Senior Lecturer (Email: baskaran@uom.lk) K Gopinath, M.Sc. Research Student (Email: atk.gopinath2006@gmail.com) Department
More informationChloride threshold values
Chloride threshold values Meeting with the reference group 12 October 2011 Test methods Potentiostatic method (fixed potential) Free potential method (open circuit) RRT with RILEM TC 235 CTC method 1 Potentiostatic
More informationThe AASHO Road Test site (which eventually became part of I-80) at Ottawa, Illinois, was typical of northern climates (see Table 1).
Página 1 de 12 AASHO Road Test The AASHO Road Test, a $27 million (1960 dollars) investment and the largest road experiment of its time, was conceived and sponsored by the American Association of State
More informationCHAPTER 4 CONCRETE TRAINING AND QUALIFICATIONPROGRAM
Concrete Training Qualification Program Topic No. 700-000-001 Effective: July 1, 2002 Construction Training and Qualification Manual Revision: March 22, 2011 Concrete Training and Qualification Program
More informationSieve Analysis of Aggregates
Revised 2007, WKS Datasheet No. 30 MOHAWK COLLEGE OF APPLIED ARTS AND TECHNOLOGY BUILDING AND CONSTRUCTION SCIENCES DEPARTMENT Sieve Analysis of Aggregates INTRODUCTION The evaluation of the distribution
More informationEFFECT OF SODIUM HYDROXIDE CONCENTRATION ON FRESH PROPERTIES AND COMPRESSIVE STRENGTH OF SELF-COMPACTING GEOPOLYMER CONCRETE
Journal of Engineering Science and Technology Vol. 8, No. 1 (2013) 44-56 School of Engineering, Taylor s University EFFECT OF SODIUM HYDROXIDE CONCENTRATION ON FRESH PROPERTIES AND COMPRESSIVE STRENGTH
More informationXYPEX AUSTRALIA CHLORIDE PENETRATION TESTS ON XYPEX ADMIX C-1000NF MODIFIED COMMERCIAL CONCRETES. By Gary Kao B.Mat.E, MSc, UNSW Research Engineer
XYPEX AUSTRALIA CHLORIDE PENETRATION TESTS ON XYPEX ADMIX C-1NF MODIFIED COMMERCIAL CONCRETES AUSINDUSTRY START RESEARCH PROJECT By Gary Kao B.Mat.E, MSc, UNSW Research Engineer 27-3-23 Issued for Information
More informationDetermination of appropriate mix ratios for concrete grades using Nigerian Portland-limestone grades 32.5 and 42.5
Leonardo Electronic Journal of Practices and Technologies ISSN 1583-1078 Issue 26, January-June 2015 p. 79-88 Determination of appropriate mix ratios for concrete grades using Nigerian Portland-limestone
More informationAN EXPERIMENTAL RESEARCH ON STRENGTH PROPERETIES OF CONCRETE BY THE INFLUENCE OF FLYASH AND NANOSILICA AS A PARTIAL REPLACEMENT OF CEMENT
International Journal of Civil Engineering and Technology (IJCIET) Volume 7, Issue 3, May June 2016, pp. 306 315, Article ID: IJCIET_07_03_030 Available online at http://www.iaeme.com/ijciet/issues.asp?jtype=ijciet&vtype=7&itype=3
More informationPROJECT PROFILE ON CEMENT CONCRETE HOLLOW BLOCKS
PROJECT PROFILE ON CEMENT CONCRETE HOLLOW BLOCKS PRODUCT : Cement Concrete Hollow Blocks NIC CODE : 26959 (based on NIC 2004) PRODUCT CODE : 94459 (based on ASICC 2000) PRODUCTION CAPACITY : Quantity :
More informationFire-Damage or Freeze-Thaw of Strengthening Concrete Using Ultra High Performance Concrete
Fire-Damage or Freeze-Thaw of Strengthening Concrete Using Ultra High Performance Concrete Ming-Gin Lee 1,a, Yi-Shuo Huang 1,b 1 Department of Construction Engineering, Chaoyang University of Technology,Taichung
More informationEffects of Temperature and Fly Ash on Compressive Strength and Permeability of High-Performance Concrete*
Center for By-Products Utilization Effects of Temperature and Fly Ash on Compressive Strength and Permeability of High-Performance Concrete* By Tarun R. Naik, William A. Olson, Jr., and Shiw S. Singh Report
More informationSTRENGTH AND DURABILITY STUDIES ON CONCRETE WITH FLYASH AND ARTIFICIAL SAND
STRENGTH AND DURABILITY STUDIES ON CONCRETE WITH FLYASH AND ARTIFICIAL SAND M.Uma 1, S. Shameem banu 2 1 P.G Student in JNTU Kakinada, Civil Engineering, uma848@gmail.com 2 Asst. Professor in JNTU Kakinada,
More informationDivision 4 Section 047200 Concrete Masonry Specifications
Cast Stone Specification This specification encompasses basic requirements for Cast Stone, as manufactured by Building Products Corp, 494 North 33 rd Street East St. Louis, Il 618-874-6282, 800-427-6282,
More informationA Study on the Flexural and Split Tensile Strengths of Steel Fibre Reinforced Concrete at High Temperatures
A Study on the Flexural and Split Tensile Strengths of Steel Fibre Reinforced Concrete at High Temperatures 1 P. Jyotsna Devi, 2 Dr. K. Srinivasa Rao 1,2 Dept. of Civil Engg, Andhra University, Visakhapatnam,
More informationISIDAÇ 40. building chemicals. Special cement for your special products!
ISIDAÇ 40 building chemicals Special cement for your special products! Çimsa ISIDAÇ 40 Calcium Aluminate Cement Building Chemicals Applications www.cimsa.com.tr ISIDAÇ 40 is a Calcium Aluminate Cement
More informationMathematical Regression Model for the Prediction of Concrete Strength
Mathematical Regression Model for the Prediction of Concrete Strength M. F. M. Zain 1, Suhad M. Abd 1, K. Sopian 2, M. Jamil 1, Che-Ani A.I 1 1 Faculty of Engineering and Built Environment, 2 Solar Energy
More informationNumerical prediction of steel fiber orientation and distribution
Numerical prediction of steel fiber orientation and distribution Author: Oldřich Švec Supervisors: Henrik Stang John Forbes Olesen Lars Nyholm Thrane Three point bending test Source: internet 2 DTU Civil
More informationENGINEERED QUARTZ STONE
ENGINEERED 2 QUARTZ STONE 18 GOOD INDUSTRY PRACTICES 2 ENGINEERED QUARTZ STONE Natural stones, especially granite, have been used for flooring and countertop material in high-end homes for its beauty and
More informationEffect of Curing Temperature on Mortar Based on Sustainable Concrete Material s and Poly-Carboxylate Superplasticizer
Jan. 2014, Volume 8, No. 1 (Serial No. 74), pp. 66-72 Journal of Civil Engineering and Architecture, ISSN 1934-7359, USA D DAVID PUBLISHING Effect of Curing Temperature on Mortar Based on Sustainable Concrete
More informationThe Influence of Porosity & Aspect Ratio on the Compressive Behavior of Pervious Concrete. Alexander Hango
The Influence of Porosity & Aspect Ratio on the Compressive Behavior of Pervious Concrete by Alexander Hango 1 Clarkson University The Influence of Porosity & Aspect Ratio on the Compressive Behavior of
More informationMeltonStone Cast Stone Product Specifications
MeltonStone Cast Stone Product Specifications Section 04-72-00-04 Architectural Cast Stone This specification encompasses basic requirements for Cast Stone, a refined architectural concrete building unit
More informationMass Concrete. Robert Moser CEE8813A Material Science of Concrete. Definitions & Standards, Thermal Cracking, and Temperature Rise
Mass Concrete Robert Moser CEE8813A Material Science of Concrete Lecture Overview General Overview Definitions & Standards, Thermal Cracking, and Temperature Rise Temperature & Stress Prediction Factors
More informationShrinkage and Creep Properties of High-Strength Concrete Up To 120 MPa
Seventh International Congress on Advances in Civil Engineering, October11-13, 26 Yildiz TechnicalUniversity, Istanbul, Turkey Shrinkage and Creep Properties of High-Strength Concrete Up To 12 MPa H. C.
More informationConcrete for industrial floors
Published October 2000 Reprinted October 2004 One of a series of publications produced in conjunction with the following organizations, and part-funded by DETR. Association of Concrete Industrial Flooring
More informationStrength of Concrete
Strength of Concrete In concrete design and quality control, strength is the property generally specified. This is because, compared to most other properties, testing strength is relatively easy. Furthermore,
More informationManufacturing Quality Concrete Products
CEMEX USA - Technical Bulletin 8.0 Manufacturing Quality Concrete Products Establishing or Upgrading a Quality Program Overview The following guidelines were developed for MCP (manufactured concrete products)
More informationSPECIFICATIONS. INTERLOCKING CONCRETE POROUS PAVING UNITS or Permeable Interlocking Concrete Pavers (PICP)
SPECIFICATIONS INTERLOCKING CONCRETE POROUS PAVING UNITS or Permeable Interlocking Concrete Pavers (PICP) Part 1 General 1.1 CONFORMITY Conforms to the requirements of the general conditions of the contract.
More informationcement Masonry Cement Engineered for quality and reliability, Lafarge cements for masonry deliver consistent performance. page 2 Lafarge Cement
cement Masonry Cement Engineered for quality and reliability, Lafarge cements for masonry deliver consistent performance. page 2 Lafarge Cement Lafarge in North America The Lafarge Group is the world leader
More informationConstruction Specifications for Keyhole Pavement Coring and Reinstatement
F I N A L Construction Specifications for Keyhole Pavement Coring and Reinstatement Gas Technology Institute 1700 S. Mount Prospect Rd. Des Plaines, Illinois 60018 www.gastechnology.org Version 13 October
More informationUse of Marginal Materials & Fly ash in Road Works
Use of Marginal Materials & Fly ash in Road Works U.K.Guru Vittal Sr. Principal Scientist Central Road Research Institute New Delhi 110 025 vittal.crri@gmail.com Introduction Issue Development Vs. Environment
More informationSTUDY ON THE MECHANICAL PROPERTIES AND MICROSTRUCTURE OF CHOPPED CARBON FIBER REINFORCED SELF COMPACTING CONCRETE
International Journal of Civil Engineering and Technology (IJCIET) Volume 7, Issue 3, May June 2016, pp. 223 232, Article ID: IJCIET_07_03_022 Available online at http://www.iaeme.com/ijciet/issues.asp?jtype=ijciet&vtype=7&itype=3
More informationC. Section 014510 TESTING LABORATORY SERVICE.
SECTION 014500 QUALITY CONTROL PART 1 GENERAL 1.01 RELATED REQUIREMENTS A. Drawings and General Provisions of Contract, including General and Special Conditions and other Division 1 Specification Sections,
More informationQUALITY CONTROL AND QUALITY ASSURANCE MANAGEMENT IN UPPER-KOTMALE HYDROPOWER PROJECT
QUALITY CONTROL AND QUALITY ASSURANCE MANAGEMENT IN UPPER-KOTMALE HYDROPOWER PROJECT Yoshimitsu NAKAJIMA MAEDA Corporation, Technical Research Institute ABSTRACT: Upper-Kotmale Hydropower Project has been
More informationRecycled Concrete Pavement and Other Recycled Materials in Concrete Pavements
Recycled Concrete Pavement and Other Recycled Materials in Concrete Pavements Infrastructure Applications Utilizing Recycled Materials in South Carolina What/Who is NRMCA? National Ready-Mixed Concrete
More informationCementitious Materials Update The effect of ggbs, fly ash, silica fume. concrete.
Cementitious Materials Update The effect of ggbs, fly ash, silica fume and limestone on the properties of concrete. Richard Barnes Concrete Society Technical Report: Cementitious Materials - The effect
More informationNRMCA Quality Certification. Ready Mixed Concrete Quality Management System. Certification Criteria Document
NRMCA Quality Certification Ready Mixed Concrete Quality Management System Certification Criteria Document Version 1 February 2014 NRMCA Quality Certification Ready Mixed Concrete Quality Management System
More informationINTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCES Volume 1, No 3,2010. Copyright 2010 All rights reserved Integrated Publishing services
ABSTRACT Studies on Concrete containing E plastic waste Lakshmi.R 1 Nagan.S 2 1 Research Scholar is with K.L.N.College of Information Technology, Sivagangai 2 Assistant Professor is with Thiagarajar College
More informationSUSTAINABLE CONCRETE MADE FROM RECYCLED AGGREGATES
International Journal of Civil Engineering and Technology (IJCIET) Volume 7, Issue 3, May June 2016, pp. 241 251, Article ID: IJCIET_07_03_024 Available online at http://www.iaeme.com/ijciet/issues.asp?jtype=ijciet&vtype=7&itype=3
More informationPROPERTIES OF SPRAYED CONCRETE WITH RECYCLED TYRE POLYMER FIBRES
PROPERTIES OF SPRAYED CONCRETE WITH RECYCLED TYRE POLYMER FIBRES Ana Baricevic 1, Dubravka Bjegovic 1, Martina Pezer 1, Nina Štirmer 1 1 University of Zagreb, Faculty of Civil Engineering, Department of
More informationSafetyBuletin. Concrete101 Aguidetounderstandingthequalitiesofconcrete andhowtheyaffectpumping
SafetyBuletin Concrete101 Aguidetounderstandingthequalitiesofconcrete andhowtheyaffectpumping Copyright 2008 v1.01 ACPA All rights reserved Manufacturer s recommendations supersede any and all information
More information