聚合物水泥防水涂料不透水性试验的有限元分析

Finite Element Analysis of Water Impermeability Test for Polymer-Modified Cement Compounds for Waterproofing Membrane

摘要

为探究聚合物水泥防水涂料不透水性检测中圆盘结构与试验参数对评价结果的影响，以GB/T 23445-2009^[1]、GB/T 6777-2008^[2]等标准为依据，采用ABAQUS有限元分析软件，建立7孔圆盘与19孔圆盘两种检测模型，分别模拟0.3MPa压力下30min（7孔）与60min（19孔）的不透水试验过程。通过分析涂膜试样的应力分布、应变特征及力学响应规律，对比两种检测方法的合理性。结果表明：借助ABAQUS有限元模拟可精准还原聚合物水泥防水涂料不透水性试验的力学行为，揭示了检测参数对试验结果的影响机制，验证了19孔圆盘搭配60min持荷时间的检测方案更具合理性，为该类防水涂料不透水性检测标准的优化完善提供了理论与数据支撑。

Abstract

To investigate the effects of disc structure and test parameters on the evaluation results in the impermeability detection of polymer-cement waterproof coatings, this study was carried out in accordance with standards including GB/T 23445-2009 and GB/T 16777-2008. The ABAQUS finite element analysis software was used to establish two detection models of a 7-hole disc and a 19-hole disc, so as to simulate the impermeability test processes under a pressure of 0.3 MPa for 30 minutes (for the 7-hole disc) and 60 minutes (for the 19-hole disc) respectively. By analyzing the stress distribution, strain characteristics and mechanical response laws of the coating film samples, the rationality of the two detection methods was compared. The results show that the ABAQUS finite element simulation can accurately reproduce the mechanical behavior of the impermeability test of polymer-cement waterproof coatings, clearly reveal the influence mechanism of test parameters on the test results, and verify that the test scheme of the 19-hole disc combined with a 60-minute load holding time is more reasonable, which provides theoretical and data support for the optimization and improvement of the impermeability test standards for such waterproof coatings.

关键词

聚合物水泥防水涂料 / 不透水性 / 有限元分析 / ABAQUS / 圆盘结构

Key words

Polymer-cement waterproof coating / Impermeability / Finite element analysis / ABAQUS / Disc structure

参考文献

[1] GB/T 23445-2009. 聚合物水泥防水涂料[S]. 中国标准出版社, 2009.

[2] GB/T 16777-2008. 建筑防水涂料试验方法[S]. 中国标准出版社, 2008.

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[8] GB/T 16777-2008. 建筑防水涂料试验方法[S]. 中国标准出版社, 2008.

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基金资助

大连民族大学创新创业训练计划(202512026154)