微生物自修复混凝土的制备及性能研究  

Preparation and Performance Study of Microbial Self-repairing Concrete

作　　者：李茜茜 刘昭洋 赵明敏 Serina Ng 王进春 LI Xi-xi;LIU Zhao-yang;ZHAO Ming-min;Serina Ng;WANG Jin-chun(Shijiazhuang Chang'an Yucai Building Materials Co.,Ltd.,Shijiazhuang 051430,China;Shijiazhuang Building Functional Materials Industry Technology Research Institute,Shijiazhuang 051430,China;Sichuan Tongdao Technology Co.,Ltd.,Chengdu 610200,China)

机构地区：[1]石家庄市长安育才建材有限公司,石家庄051430 [2]石家庄市建筑功能材料产业技术研究院,石家庄051430 [3]四川砼道科技有限公司,成都610200

出　　处：《价值工程》2024年第10期74-76,共3页Value Engineering

基　　金：河北省院士重点合作单位和院士工作站项目(项目编号:215A9928D)。

摘　　要：通过嗜碱芽孢杆菌胶与匹配的胶结液制备微生物修复剂,并自主研发疏水剂,通过向混凝土中加入疏水剂,改变了混凝土颗粒结构、降低土微粒界面活性,使之可以更好地配合微生物胶结对混凝土的固化,固化后的混凝土韧性大大提升,避免混凝土发生破坏后强度瞬间丧失的情况发生。并通过大蒜素水溶液,在后期加强微生物对混凝土的加工作用,实现混凝土的“自愈合”效果。Microbial remediation agents were prepared by using alkaline Bacillus gum and matching binder,and hydrophobic agents were independently developed.By adding hydrophobic agents to concrete,the structure of concrete particles was changed and the interfacial activity of soil particles was reduced,allowing it to better cooperate with microbial bonding for the solidification of concrete.The toughness of cured concrete was greatly improved,avoiding the instantaneous loss of strength after concrete failure.And by using allicin aqueous solution,the processing effect of microorganisms on concrete is strengthened in the later stage,achieving the self-healing effect of concrete.

关 键 词：微生物自修复 疏水剂 混凝土 裂缝 

分 类 号：TU755.7[建筑科学—建筑技术科学]