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Cracking mass concrete analysis and measures of early


Heat, reducing the constraints (when cement consumption is 350l (g/_m3 ~ 550kg/m3, each cubic meter of concrete will release 17500kj-27500kJ heat, so that the internal temperature rise of concrete up to about 70 ℃ or higher); in embedded inside the concrete pipe, Walter cooling water, reducing the maximum temperature inside the concrete, the cooling just finished pouring the concrete when it started; in concrete structures exposed surface covered with insulation material, reducing the surface cooling rate, so that the necessary concrete strength to control the temperature difference between inside and outside the concrete; pouring, the vibrator slowly pull both hands to push, depending on the concrete slump vibrated right time to master, to avoid excessive vibration or leakage vibration; set in concrete structure an appropriate contraction seam; hot and windy weather to set the sun and wind facilities; ensure reinforced protection layer thickness, so as to prevent rust crack 3 3.1 Surface repair method of concrete repair method surface repair method is a simple, common repair method,MBTシューズ 販売店, it is mainly for structural stability and carrying capacity of the structure of the surface cracks did not affect the treatment. The usual treatment measures are applied in cracks in the surface of the water,Beats By Dre Headphones, mud, clay or epoxy paint brushing the surface of the concrete,herve leger toronto, asphalt and other anti-corrosion material, while in the protective prevent the impact of concrete by a variety of roles to crack. 3.2 grouting, caulking sealing method grouting method is mainly applied to affect the structure or impermeable integrity required repair of concrete cracks, it is the use of pressure equipment will be cemented material pressure on people in the cracks of concrete, cement and concrete materials hardening after the formation of a whole, and thus play a block reinforcement purposes. cementing material commonly used in water, mud, epoxy, methacrylate, polyurethane and other chemical materials. sealing cracks in the caulking method is the most commonly used method, it is usually along the cracks gouges in the tank filled, rigid plastic or sealing material, in order to achieve the purpose of closed cracks. commonly used plastic material polyvinyl chloride clay, plastic ointment,tods shoes outlet, butyl rubber, etc.; commonly used sealing materials for the rigid polymer cement mortar. 3.3 Concrete Concrete replacement replacement method to deal with serious damage to the concrete method is an effective method, this method is the first damage t-Kun concrete removed, and then back into the new concrete or other materials commonly used replacement materials: ordinary concrete or cement mortar, polymer or polymer modified concrete or mortar. 4 Conclusion based on my years of observation and experiment , the large volume of concrete cracking summed up that experience - carefully selected materials, optimum ratio, well construction, increase conservation, stable handling, want to give the reader the work in the future to bring a little convenience.
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