土建工程防水层老化机理及再养护技术研究

Research on Aging Mechanism and Recuring Technology of Waterproof Layer in Civil Engineering

土建工程中,防水层老化是一个普遍存在且需要解决的问题。为了深入探讨防水层的老化机理并提出有效的再养护方法,本研究首先分析了土建工程防水层的老化现象及其主要原因,探讨了防水材料在光、热、氧化以及应力等环境因素下的老化行为,并将其归纳为物理老化和化学老化两种老化形态。通过实验室模拟和现场试验,动态探测了防水层在不同环境影响下的老化程度,并据此建立了防水层的老化模型。基于以上,提出了再养护技术,包括表面涂刷、高温渗透等再养护方法,并对其效果进行了验证。研究结果表明,通过科学的再养护技术,可以有效延缓防水层的老化进程,提高防水层的防水性能与使用寿命。此研究对解决土建工程防水问题具有指导性意义。

In civil engineering,waterproof layer aging is a common problem and needs to be solved.In order to explore the aging mechanism of waterproof layer and put forward effective curing method,this study first analyzed the aging phenomenon of civil engineering waterproof layer and its main reasons,discusses the waterproof material in light,heat,oxidation and stress environmental factors of aging behavior,and summarized as physical aging two kinds of aging and chemical aging form.Through laboratory simulation and field test,the aging degree of the waterproof layer under different environmental influence is dynamically detected,and the aging model of the waterproof layer is established accordingly.Based on the above,the recuring technology,including surface coating,high temperature penetration and other recuring methods,is proposed,and the effect is verified.The results show that the scientific curing technology can effectively delay the aging process of the waterproof layer and improve the waterproof performance and service life of the waterproof layer.This study is of guiding significance to solve the waterproof problem in civil engineering.