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混凝土透水模板布的工艺原理有哪些?

来源:http://www.toushuimobanbu.com   作者:宏建模板布   时间:2018-05-18T23:20:44   浏览次数:   

混凝土透水模板布
混凝土透水模板布的工艺原理有哪些?

  混凝土透水模板布特别设计了渗水、透气通道,可以确保水分、气泡透出而大部分水泥水化颗粒胶凝物被截留在CPFL内侧的混凝土表面,由此结构体表面形成一层富含水化硅酸钙的致密硬化层,可以有效减少混凝土表面的蜂窝、麻面等缺陷,使混凝土表层致密、坚实,提高了混凝土的强度和耐久性,同时CPFL具有保水性,可以优化混凝土的初期养护条件。Formwork cloth specially designed for water seepage, the air passage, can ensure that the water, bubbles with most of the hydration of cement particle gel entrapped in the concrete surface CPFL on the side of the body surface to form a dense structure of hardened layer rich in calcium silicate hydrate, can effectively reduce the honeycomb, pitted the surface of the concrete defects the concrete surface, compact and solid, improves the strength and durability of concrete, while CPFL is the water, initial curing conditions can be optimized concrete.

  1使用CPFL可降低混凝土表面气泡缺陷率1 using CPFL can reduce the rate of bubble defect on concrete surfaceCPFL能够明显降低表面混凝土的气泡缺陷率,几乎可以彻底消除mm级以上气泡。例如对于下部结构采用防腐涂装的青岛海湾大桥而言,使用CPFL不仅改善了混凝土结构的表观质量,更提高了涂层与混凝土的粘附性能。CPFL can obviously reduce the bubble defect rate of the surface concrete, and can almost eliminate the bubbles above the mm level. For example, for the substructure of Qingdao Bay Bridge with anticorrosive coating, the use of CPFL not only improves the apparent quality of the concrete structure, but also improves the adhesion performance of the coating to the concrete.

  2使用CPFL可减缓混凝土碳化的速率2 the use of CPFL can slow down the rate of carbonization of concreteCPFL可以有效排出表层混凝土的多余拌和用水,降低表层混凝土的水胶比,提高混凝土的致密性,降低碳化速率。试验结果表明,与普通钢板相比,使用CPFL可以降低28d、90d龄期混凝土的碳化深度达到70%以上。CPFL can effectively discharge the superfluous mixing water of the surface concrete, reduce the water and glue ratio of the surface concrete, improve the compactness of concrete and reduce the carbonization rate. The test results show that CPFL can reduce the carbonization depth of 28d and 90d age concrete by more than 70% compared with ordinary steel.3使用CPFL可增加表层混凝土回弹硬度3 using CPFL can increase the springback hardness of surface concrete使用CPFL后,表层混凝土的回弹硬度得到明显提高,7d、28d的回弹值分别提高30%和15%左右。After the use of CPFL, the springback hardness of the surface concrete is obviously improved, and the rebound values of 7D and 28d are increased by 30% and 15%, respectively.4使用CPFL可提高混凝土表层抗渗透性4 the anti permeability of concrete surface can be improved by using CPFLCPFL能否提高混凝土的抗氯离子渗透能力及其影响深度是专家最为关注的问题,测试结果表明,CPFL可以大幅度降低结构表层混凝土的抗氯离子渗透性,与普通钢模板相比,CPFL可降低混凝土氯离子扩散系数80%左右。CPFL can improve the resistance of concrete to chloride ion penetration depth and its influence is the most concern for the experts, the test results show that the CPFL can greatly reduce the surface resistance of concrete to chloride ion permeability, compared with ordinary steel template, CPFL can decrease the chloride diffusion coefficient of concrete is about 80%.