黄 刚1,王庆轩2,3,*,王琼琼1,张晓奇1,崔静恩1,汪 登1,张文杰1,霍 亮1
黄刚,王庆轩,王琼琼,等.混凝土结构自防水厚度试验方法研究[J].混凝土与水泥制品,2024(11):85-89.
HUANG G,WANG Q X,WANG Q Q,et al.Study on test method of self-waterproof thickness of concrete structures[J].China Concrete and Cement Products,2024(11):85-89.
混凝土结构自防水厚度试验方法研究
黄 刚1,王庆轩2,3,*,王琼琼1,张晓奇1,崔静恩1,汪 登1,张文杰1,霍 亮1
黄刚,王庆轩,王琼琼,等.混凝土结构自防水厚度试验方法研究[J].混凝土与水泥制品,2024(11):85-89.
HUANG G,WANG Q X,WANG Q Q,et al.Study on test method of self-waterproof thickness of concrete structures[J].China Concrete and Cement Products,2024(11):85-89.
摘 要:为了探究建筑用混凝土结构自防水厚度,通过改进密封技术和抗渗方案,提出了试验室条件下混凝土结构自防水厚度的试验方法,并采用该方法测试了C30、C40、C50混凝土结构自防水厚度。结果表明:环氧树脂-橡胶套组合密封技术可避免抗渗试件侧漏,减小数据离散性,提高试验成功率及测试效率;在渗水高度法的基础上,以工程需求的抗渗压力保压到渗透平衡时间阈值,可准确快速地测得混凝土的最大渗透厚度,即混凝土结构自防水厚度;在P12抗渗等级要求下,C30、C40、C50混凝土结构自防水厚度分别不超过36.8、32.7、29.1 mm。
Abstract: In order to explore the self-waterproofing thickness of concrete structures used in buildings, a testing method for the self-waterproofing thickness of concrete structures under laboratory conditions was proposed by improving sealing technology and impermeability schemes. This method was used to test the self-waterproofing thickness of C30, C40, and C50 concrete structures. The results show that the combination sealing technology of epoxy resin and rubber sleeve can avoid side leakage of impermeable specimens, reduce data discreteness, and improve the success rate and efficiency of the test. On the basis of the water permeability height method, the maximum permeability thickness of concrete can be accurately and quickly measured by keeping the impermeable pressure required by the engineering to the threshold of permeation equilibrium time. Under the requirement of P12 impermeability level, the self-waterproofing thickness of C30, C40, and C50 concrete structures not exceeds 36.8 mm, 32.7 mm, and 29.1 mm, respectively.
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