摘要
为研究冻融损伤对整体混凝土抗渗透性能影响,制备不同水灰比、不同硅烷乳液掺量的整体防水混凝土试件。在不同冻融循环次数下,测定不同试件相对动弹性模量以评价整体防水混凝土抗冻性能。同时,对经过不同冻融循环次数下的试件进行毛细吸水试验和氯离子侵蚀试验,并绘制毛细吸水曲线和氯离子含量曲线,以评价不同冻融损伤下整体防水混凝土的抗渗透性能。试验结果表明,随着硅烷乳液掺量的增加,整体防水混凝土的抗冻性能降低。但是在相同冻融循环次数下,整体防水混凝土仍较普通混凝土具有较好的抗渗透性能。
For studying the influence of freezing-thawing damage on the anti-permeability of integral waterproofing concrete, the con- crete specimens with different W/C and the amount of silane emulsion were prepared.The water absorption and chloride penetration testes were respectively carried out after different freezing-thawing cycles.Eventually, the curves of water absorption and chloride tent are drawn, which aims to evaluate the anti-permeability of integral water proofing concrete.The results show that the anti-frost property of integral waterproof concrete is decreased with the addition of silane emulsion.After the same freezing-thawing cycles, the integral water proofing con- crete possesses a better anti-permeability than ordinary concrete that without silane emulsion adding.
出处
《混凝土》
CAS
北大核心
2016年第8期39-42,共4页
Concrete
基金
国家自然科学基金(2009CB623203)
关键词
整体防水混凝土
冻融循环
耐久性
渗透性
integral waterproofing concrete
freezing-thawing cycles
durability
permeability
