自愈合抑温防水复合材料的制备与性能研究  

Preparation and properties of self-healing thermostatic waterproof composites

作　　者：邵晓芬 邓小旭 吕达 冯金辉 曾志勇 SHAO Xiaofen;DENG Xiaoxu;LYU Da;FENG Jinhui;ZENG Zhiyong(Zhejiang Urban Space Architecture Planning and Design Institute Co.Ltd.,Lishui 323000,China;Zhejiang Yanxiang New Material Co.Ltd.,Taizhou 318000,China;School of Architectural Engineering,Taizhou University,Taizhou 318000,China)

机构地区：[1]浙江城市空间建筑规划设计院有限公司,浙江丽水323000 [2]浙江研翔新材料有限公司,浙江台州318000 [3]台州学院建筑工程学院,浙江台州318000

出　　处：《新型建筑材料》2024年第1期129-132,共4页New Building Materials

基　　金：浙江省重点研发计划项目(2021C03160);台州市科技计划项目(2001gy11)。

摘　　要：以28 d抗压强度和抗渗压力比为指标,研制出了一种新型自愈合抑温防水复合材料。研究了掺入自愈合抑温防水复合材料砂浆的裂缝自修复性能,并对其进行XRD和SEM微观分析。结果表明:掺入自愈合抑温防水复合材料后,水泥净浆抑温率47%,混凝土一次抗渗压力比(28 d)可达400%,二次抗渗压力比(56 d)325%,28 d抗压强度比113%,砂浆0.3 mm裂缝90 d可实现自愈合。防水材料中的结晶成分和活性物质能够促使水泥水化,与水泥水化产物发生反应,生成结晶体填充裂缝和孔隙,从而提高试件的防水性能和自修复能力。Taking 28 d compressive strength and impermeable pressure ratio as indexes,a new self-healing thermostatic waterproof composite was developed.The crack self-healing property of the mortar mixed with self-healing thermostatic waterproof composite material was studied and analyzed by XRD and SEM.The results show that after dosing self-healing thermostatic waterproof composite material,the temperature inhibition rate of cement paste is 47%,the primary impervious pressure ratio of concrete(28 d)can reach 400%,the secondary impervious pressure ratio(56 d)is 325%,the 28 d compressive strength ratio is 113%,and the 0.3 mm crack of mortar can realize self-healing after 90 d.The crystalline components and active substances in the waterproof material can promote the hydration of cement and react with the hydration products of cement to generate crystals to fill cracks and pores,thus improving the waterproof performance and self-healing ability of the test piece.

关 键 词：自愈合 防水材料 活性化学物质 微观分析 

分 类 号：TU572[建筑科学—建筑技术科学]