微生物诱导矿化材料的耐腐蚀性能试验研究  

Experimental Investigation on the Corrosion Resistance of MICP-Generated Artificial Geotechnical Material

作　　者：李驰[1] 王燕星[1] 周团结[1] 秦骁[1] 李弘妍 

机构地区：[1]内蒙古工业大学土木工程学院,呼和浩特010051

出　　处：《内蒙古工业大学学报（自然科学版）》2016年第3期223-229,共7页Journal of Inner Mongolia University of Technology：Natural Science Edition

基　　金：国家自然科学基金项目(51668050);内蒙古自然科学基金项目(2014MS0105);内蒙古自治区科技计划项目(20140155)

摘　　要：本文通过电子显微镜扫描试验对新型微生物矿化材料的固化机理进行研究,并通过岩土力学试验对微生物诱导矿化材料的耐酸碱侵蚀能力进行试验评价。试验结果表明该材料在经历酸碱腐蚀过程中并没有改变其破坏形式,当酸碱腐蚀溶液浓度为4g/L时,7天腐蚀后,试样的酸碱腐蚀速度分别为0.25MPa/d和0.02MPa/d,表明试样抗碱腐蚀能力强于抗酸腐蚀能力,试验结果证实微生物诱导矿化材料是一种耐碱而不耐酸侵蚀的材料。The reinforcement mechanism of new artificial geotechnical material based on the microbially-induced calcite precipitation（MICP） technology was studied through SEM tests.An evaluation on acid and alkali corrosion resisitance was conducted by geomechanical testing.The results show that the corrosion either in acid solution or in alkali solution can not change the damage form.When the concentration of acid or alkali solution is 4g/L,the acid-corrosion rate is 0.25 MPa/d,versus the alkalicorrosion rate reaches 0.02 MPa/d after 7days,which shows that alkali resistance of this material is stronger than its acid resistance.This new material is verified as alkali-proof material but not acid resistance through a series of tests in this paper.

关 键 词：微生物诱导矿化 腐蚀机理 酸碱腐蚀性能 

分 类 号：TU503[建筑科学—建筑技术科学]