Water and Secondary Containment Concrete Structures
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1 Water and Secondary Containment Concrete Structure Repair and Protection of Joint and Crack Sikadur Combiflex Sytem
2 TYPICAL JOINT OR CRACK SEALING PROBLEMS IN WATER STRUCTURES Water Structure Civil Engineering tructure in water or wet environment give rie to ome particularly difficult joint ealing problem to keep water in and to keep water out! Raw Water Reervoir Bacterial oxidation of organic matter occur. Supended matter ettle out and anaerobic decompoition can occur beneath the ediment. Channel and Culvert High flow rate and abraion problem are poible. Water Treatment Proce and Potable Water Tank Tank for chemical treatment, edimentation, oftening, filtration, dewatering and ettling. Alo torage reervoir. Mechanical tirring and craping, and abraion from olid treatment chemical, can occur. A ph from 2 to 11 i feaible for different tage of the proce. Final water may be ph 6.5 to 9.2. Chemical uch a chlorine, ozone, ulfur dioxide, aluminum ulfate and cautic oda are ued. Predominantly aerobic condition are preent. In potable water tank the jointing ytem mut not contaminate the water upply. Watewater Treatment Proce Concrete tructure include oxidation pond or channel, inlet channel, overflow, edimentation, ettlement, conditioning, and digetion tank. Conventional anaerobic digetion i carried out a a two tage proce. The firt tage require heat to the temperature of 85 to 95 F and produce methane and carbon dioxide gae; the econd tage i ettlement and olid eparation. The watewater treatment environment i, therefore, one of the mot evere for ealant. Secondary Containment Structure Sealant mut have temporary or longterm reitance to toxic or other chemical which have to be contained. No error i poible in thi function. Joint or crack in repair ituation mut reit movement, temperature and chemical over a wide range. Typical Joint Problem in Water Structure In practice, the typical problem joint and crack can be ummarized a follow: Failed Bituminou Joint Exiting joint leak and are filled with thermoplatic bitumen which i extremely difficult and expenive to remove. Thi will leave contaminated concrete joint edge, giving poor bond to ealant. Broken Joint Edge In addition to removing exiting ealant, the joint edge can be broken and damaged, needing extenive mechanical preparation and cotly repair before reealing. Joint Moving In Two Direction Contruction movement joint and joint ealant are normally deigned for movement in only one dimenion. Movement in two or more dimenion Failed Conventional Sealant lead to exceive tre and failure. Joint Moving Vertically Contruction movement joint are normally deigned to move laterally. Additional or alternative vertical movement lead to exceive tre and failure. Joint expoed to water preure on the face can have their lateral movement capabilitie reduced, and, when expoed to back preure, can balloon and fail. Gunned or poured joint ealant can have limited reitance when in contact with aggreive chemical particularly at increaed concentration. Sikadur Combiflex i a unique ytem for waterproofing and ealing thee problem joint or crack. Sikadur Combiflex provide a complete tep-by-tep olution to thee and many other joint ealing problem in both retoration and new contruction project. 1
3 SIKADUR COMBIFLEX JOINT SEALING SYSTEM SOLUTIONS Sika veratile joint ealing ytem effectively eal joint and crack ubject to normal or large movement in one or more dimenion Correctly Dimenioned Joint Contruction Joint 1. Sikadur 31 adheive 2. Sika Combiflex trip 4. Fiber filler board Sikadur Combiflex for Crack Sealing 2 1 Joint Which I Too Narrow for Sealant Simple Crack 1. Sikadur 31 adheive 2. Sika Combiflex trip Sikadur Combiflex for Edge Joint Joint With Exceive Movement Requirement Expanion Joint 1. Sikadur 31 adheive 2. Sika Combiflex trip 3. Paper adheive trip 20mm 4. Fiber filler board Sikadur Combiflex for Movement Joint 2
4 HOW TO INSTALL SIKADUR COMBIFLEX FAST AND SECURE Thoroughly clean the Apply Sikadur 31 epoxy 1 bond urface mechani- 2 adheive by bruh or 3 cally. Note: No need to remove exiting failed joint ealant. trowel on each ide of the joint or crack. Note: No need to repair all joint noing. Place activated Sikadur Combiflex trip in poition. Roll Sikadur Combiflex 4 trip to exclude air 5 apply a top layer of 6 through the pecial perforation until adheive come through. Note: Allow heeting to drape in lot for high movement joint. With bruh or trowel, Sikadur 31 over entire width of heeting. Note: Do not deliberately wate adheive over red center trip. Remove red center trip before Sikadur 31 fully harden. Note: Thi i bet done within one hour at 73 F (22 C). Overlapping ection or detail are permanently bonded on or off ite uing hot weld gun. 3
5 TESTING AND APPROVALS: PERFORMANCE EVALUATION The Unique Sikadur Combiflex Sytem: Can be ued to eal old joint without removing the failed joint ealant Can be applied without recontructing joint noing Can be applied in cold and damp environment I water and chemical reitant Reitant to UV light expoure Exceptional Movement Capability SIKA HYPALON STRIP OFFERS EXCEPTIONAL DURABILITY TENSILE PROPERTIES (ASTM D-412) Elongation at Break: 800% Tenile Strength: 1300 pi TEAR RESISTANCE (ASTM D-624) 250 lb./in. LOW TEMPERATURE PERFORMANCE MAINTAINED TO -40 F (-40 C) Sika Hypalon Strip Thickne: 40 mil. Extremely High Bonding Propertie SIKADUR BOND STRENGTH ASTM C-882 HARDENED CONCRETE TO HARDENED CONCRETE 2 Day (Dry Cure): 2800 pi min. (20 N/mm 2 ) 14 Day (Moit Cure): 2000 pi min. (14 N/mm 2 ) Seal large and mall irregular joint, even with high movement Seal between diimilar plane I rot reitant I permanently elatic, even at low temperature I approved for potable water contact Reitant to ozone expoure (300 ppm) Accommodate vertical movement Fat Intallation and Curing COMPRESSIVE STRENGTH, PSI (ASTM D-695) 40 F (4 C) 73 F (22 C) 90 F (32 C) 8 HOUR 6,800 8, HOUR 400 9,600 10,100 1 DAY 3,900 9,800 11,700 3 DAY 6,700 11,300 11,900 7 DAY 9,100 12,000 13, DAY 10,400 12,000 13, DAY 11,200 12,000 13,000 Note Metric Converion: 1,400 pi=10 N/mm 2 Rapid curing Sikadur Epoxy Adheive allow for quick turnaround time. Fat and cot effective 4
6 SIKADUR COMBIFLEX SYSTEM CHEMICAL EXPOSURE DATA WATER AND SEWAGE EXPOSURE Twelve Month Study: Immerion in Potable Water, Aerobic and Anaerobic Treatment Tank The Sikadur Combiflex Sytem wa immered in a water treatment environment. Environment for Immerion: Potable Water: 73 F ±2 F (22 C ±1 C) Aerobic: An aerobic ewage flow tank Anaerobic: A econdary overflow/ ettlement tank adjacent to the cloed primary anaerobic digeter. Full anaerobic condition were preented at the depth at which ample were immered. Control: Air dry tored 73 F ±2 F, (22 C ±1 C) 50% RH ample were prepared to act a control. Water and Sewage Expoure Reut of Twelve Month Study: Sikadur Combiflex howed excellent performance with no ignificant change in propertie in all three environment. Note: ALL conventional ealant were eriouly degraded in the aerobic and anaerobic environment. Sikadur Combiflex in Watewater Treatment SIKADUR COMBIFLEX CONVENTIONAL SEALANTS RESULTS OF 12-MONTH STUDY IMMERSION IN POTABLE WATER, AEROBIC AND ANAEROBIC TREATMENT TANKS Sytem unaffected, with no change in performance Softened with a ignificant decreae in phyical propertie Sikadur Combiflex Tet Specimen Potable Water Ue Sikadur Combiflex Sytem i approved to ANSI/NSF Standard 61 for ue in potable water. Sikadur Combiflex After 12 Month Immerion in Raw Sewage and Potable Water 5
7 SIKADUR COMBIFLEX SYSTEM CHEMICAL EXPOSURE DATA Water Diinfection Treatment Procee Chlorination Reaction Ozone Reaction + Chlorine Organic Trihalomethane Ozone + Natural Organic Aldehyde + Ketone (Biodegradable) Chlorine + Peticide Limited Removal Ozone + Peticide Phenol Detergent Hydrocarbon Breakdown & Removal Traditional Ue of Chlorine in Water Treatment Increaing Ue of Ozone in Water Treatment OZONE RESISTANCE Three Month Study: Water/Ozone (3 ppm) Air/Ozone (2 300 ppm) Tet Condition: Control in Air at 70 F (21 C) and 50% RH Water Vapor at 70 F (21 C) and 100% RH Water Immerion in Potable Water at 70 F (21 C) Ozone/Air at 70 F (21 C), ppm Ozone, 100% RH Ozone/Water at 70 F (21 C), 3 ppm Ozone in Potable Water Ozone Reitance Conventional Sealant After 3 Month Ozone Expoure Sikadur Combiflex Sytem After 3 Month Ozone Expoure SIKADUR COMBIFLEX CONVENTIONAL SEALANTS RESULTS OF 3-MONTH STUDY WATER WATER/OZONE (3 PPM) AIR/OZONE (2 300 PPM) No effect on membrane or adheive Little to no effect No effect on membrane or adheive Lo of elongation, change in tenile propertie, light urface degradation No effect on membrane or adheive Lo of elongation, change in tenile propertie, light urface degradation 6
8 SIKADUR COMBIFLEX SYSTEM REFERENCES IN ALL TYPES OF STRUCTURES Sikadur Combiflex in Watewater Treatment Sikadur Combiflex in a Secondary Containment Tank Sikadur Combiflex Intallation in a Culvert CONCRETE RESTORATION SYSTEMS Sikadur Combiflex i an integral part of Sika Concrete Retoration Sytem (CRS) a comprehenive approach to concrete repair and protection. Technical and computer-generated pecification component are available immediately via fax. Call your local Sika Tech Center at SIKA SIKA NATIONWIDE ISO 9000:2000 Regional Headquarter and Sale Center For the location of your nearet Sika ale office, contact your regional center. Sika Corporation (USA) 201 Polito Avenue Lyndhurt, NJ Phone: Fax: Sika Mexicana S.A. de C.V. Carretera Libre Celaya Km. 8.5 Corregidora, Queretaro C.P A.P. 136 Phone: Fax: Sika Canada, Inc. 601 Delmar Avenue Pointe Claire, Quebec H9R4A9 Phone: Fax: SIKA...A SYMBOL OF STRENGTH SINCE 1910 The information contained in thi document(), including but not limited to any recommendation regarding the ue and application of Sika Corporation ("Sika") product(), i given in good faith baed on Sika' current experience and knowledge of it product when properly tored, handled and applied under normal condition in accordance with Sika' intruction. The information contained in thi document() i valid only for the application and ue of Sika product() decribed herein. Any deviation from any of the intruction, ue, application and recommendation contained in thi document() regarding the Sika product() will void any Sika warranty. The uer of the Sika product() mut tet each product for uitability for the intended application and purpoe. The uer of Sika product() mut alway read and follow the warning and intruction for each product on the current Technical Data Sheet, product label and Material Safety Data Sheet prior to product ue. All ale of Sika product() are ubject to it current term and condition of ale available at or Technical Data Sheet() and Material Safety Data Sheet() are available at Nothing contained in any Sika material relieve the uer of the obligation to read and follow the warning and intruction for each Sika product a et forth in the current Technical Data Sheet, product label and Material Safety Data Sheet. Sale of Sika product() are ubject to the following Limited Material Warranty: SIKA warrant thi product for one year from date of intallation to be free from manufacturing defect and to meet the technical propertie on the current Technical Data Sheet if ued a directed within helf life. Uer determine uitability of product for intended ue and aume all rik. Buyer' ole remedy hall be limited to the purchae price or replacement of product excluive of labor or cot of labor. NO OTHER WARRANTIES EXPRESS OR IMPLIED SHALL APPLY INCLUDING ANY WARRANTY OF MERCHANTIBILITY OR FITNESS FOR A PARTICULAR PURPOSE. SIKA SHALL NOT BE LIABLE UNDER ANY LEGAL THEORY FOR SPECIAL OR CONSEQUENTIAL DAMAGES. SIKA SHALL NOT BE RESPONSIBLE FOR THE USE OF THIS PRODUCT IN A MANNER TO INFRINGE ON ANY PATENT OR ANY OTHER INTELLECTUAL PROPERTY RIGHTS HELD BY OTHERS.
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