防水处理对混凝土断裂能的影响  

Influence of waterproofing treatment on concrete fracture energy

作　　者：杨松森[1] 赵铁军[1] 

机构地区：[1]青岛理工大学土木工程学院,山东青岛266033

出　　处：《兰州理工大学学报》2014年第3期135-138,共4页Journal of Lanzhou University of Technology

基　　金：国家自然科学基金(50378045)

摘　　要：混凝土表面防水处理是防止混凝土腐蚀,延长混凝土寿命的有效措施之一.在众多防水措施中,涂刷硅烷乳液是常用的保护技术.通过三点弯曲试验测试不同施工量的硅烷乳液对混凝土断裂能的影响.研究表明:用硅烷乳液进行防水处理的水泥基材料,断裂能增大;并且断裂能随防水剂渗透深度的增大而增大.当防水剂渗透深度相同时,断裂能随水灰比的减小而增大.Concrete surface waterproof treatment is one of the effective measures to prevent corrosion and extend the concrete life. In many waterproofing measures, silane emulsion brushing is commonly used preventive technique. The influence of silane emulsion with different dosage on concrete fracture energy is test by means of three-point bending test. Test result shows that waterproof treatment with a silane emulsion makes the fracture energy increased with the penetration depth of the waterproof agent. When penetration depth is the same, the fracture energy is increased with the decreasing of water-to-cement ratio.

关 键 词：防水处理 硅烷乳液 断裂能 三点弯曲试验 应变软化 

分 类 号：TU502[建筑科学—建筑技术科学]