无机渗透结晶型防水材料对混凝土吸水性能的影响研究

摘要

以吸水率作为评价指标,研究不同浓度、不同表面张力的渗透结晶型防水材料对混凝土试块吸水率的影响.结果表明:无机渗透结晶型防水材料表面张力越小,越有利于渗透到混凝土结构的内部,与碱性物质反应能力越强,防水效果越好;相同表面张力,不同浓度的渗透结晶型防水材料对混凝土吸水性能的影响也不同,1∶1稀释比例的防水效果最好;一定比例的水有助于渗透结晶型防水材料中的活性物质渗透到试块的内部,提高防水效果.%This paper adopted water absorption rate as index to study the effects of different concentration and surface tension permeable crystalline waterproofing materials on water absorption of concrete specimen.The experiment results showed that:the smaller surface tension of permeable crystalline waterproof material,the more conducive to permeate into the interior of the concrete structure,the stronger reaction ability of permeable crystalline waterproof material with alkaline substances,the better waterproof effect.Same surface tension,different concentration of permeable crystalline waterproof materials also has different effect on concrete water absorption rate.The proportion of 1∶1 dilution has the best waterproof effect.A certain proportion of water makes the active substances in permeable crystalline waterproof easier to penetrated into the interior of the specimen,and improves the waterproof effect of Jiagushi.