混凝土开裂机理及其生物水泥修复评述
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摘要
对于混凝土工程来说,裂缝一直是难以攻克的问题。综述了裂缝的机理、类型、危害及其修复方式,并专门介绍了诸如渗透结晶自修复技术,电解沉积自修复技术等混凝土裂缝自修复技术,另外还介绍了微生物诱导碳酸钙沉淀(MICP)修复技术,系统描述了基于此技术研制的生物水泥,包括其作用机理、生物固定载体、作用效果等内容。与传统的修复材料相比,生物水泥是更为绿色环保的新型胶凝材料,但与此同时,这种水泥仍存在一些不足,有待进一步的研究和改进。
Cracks have always been a difficult problem for concrete projects.It reviews the mechanism,types,hazards and repair methods of cracks,and introduces the self-healing techniques of concrete cracks such as permeable crystallization self-healing technology,electrolytic deposition self-healing technology and so on.In addition,the microbial-induced calcium carbonate precipitation(MICP)repair technology is introduced.The biocement developed based on this technology is systematically described,including its mechanism of action,biological immobilization carrier,effect and so on.Compared with the traditional repair materials,biocement is a new greener cementitious material,but at the same time,there are still some deficiencies for this kind of cement,which needs further research and improvement.
Cracks have always been a difficult problem for concrete projects.It reviews the mechanism,types,hazards and repair methods of cracks,and introduces the self-healing techniques of concrete cracks such as permeable crystallization self-healing technology,electrolytic deposition self-healing technology and so on.In addition,the microbial-induced calcium carbonate precipitation(MICP)repair technology is introduced.The biocement developed based on this technology is systematically described,including its mechanism of action,biological immobilization carrier,effect and so on.Compared with the traditional repair materials,biocement is a new greener cementitious material,but at the same time,there are still some deficiencies for this kind of cement,which needs further research and improvement.
引文
[1]朱耀台,詹树林.混凝土裂缝成因与防治措施研究[J].材料科学与工程学报,2003,21(5):727-730.
[2]李沛豪,屈文俊.生物修复加固材料在土木工程中的应用研究进展[J].材料科学与工程学报,2008(5):810-815.
[3]潘庆峰.混凝土裂缝的微生物自修复机理及自修复剂研究[D].南京:东南大学,2012.
[4]徐铮澄.商品混凝土裂缝的成因与防治[J].混凝土,2002(5):63-64.
[5]徐进刚.混凝土裂缝的相关分析[J].浙江水利水电学院学报,2006,18(3):49-52.
[6]陈光耀,吴笑梅,樊粤明.水泥基渗透结晶型防水材料的作用机理分析[J].新型建筑材料,2009,36(8):68-71.
[7]张妃二,姚立宁.光纤智能混凝土结构自修复的研究[J].功能材料与器件学报,2003,9(1):91-94.
[8]KUANG Y C,JIN-PING O U.Passive smart self-repairing concrete beams by using shape memory alloy wires and fibers containing adhesives[J].中南大学学报(英文版),2008,15(3):411-417.
[9]WHIFFIN V S.Microbial CaCO3precipitation for the production of biocement[J].2004(2004).
[10]MUYNCK W D,BELIE N D,VERSTRAETE W.Microbial carbonate precipitation in construction materials:a review[J].Ecological Engineering,2010,36(2):118-136.
[11]ANDALIB R,MAJID M Z A,KEYVANFAR A,et al.Durability improvement assessment in different high strength bacterial structural concrete grades against different types of acids[J].Sadhana,2014,39(6):1509-1522.
[12]ERSAN Y ?,HERNANDEZ-SANABRIA E,BOON N,et al.Enhanced crack closure performance of microbial mortar through nitrate reduction[J].Cement&Concrete Composites,2016(70):159-170.
[13]JONKERS H M,THIJSSEN A,MUYZER G,et al.Application of bacteria as self-healing agent for the development of sustainable concrete[J].Ecological Engineering,2010,36(2):230-235.
[14]JONKERS H M.Self Healing concrete:a biological approach[M]//Self Healing Materials,2007:195.
[15]WANG J Y,BELIE N D,VERSTRAETE W.Diatomaceous earth as a protective vehicle for bacteria applied for self-healing concrete[J].Journal of Industrial Microbiology&Biotechnology,2012,39(4):567-577.
[16]王瑞兴,钱春香.微生物沉积碳酸钙修复水泥基材料表面缺陷[J].硅酸盐学报,2008,36(4):37-44.
[17]WIKTOR V,JONKERS H M.Quantification of crack-healing in novel bacteria-based self-healing concrete[J].Cement&Concrete Composites,2011,33(7):763-770.
[18]WANG J Y,SNOECK D,VLIERBERGHE S V,et al.Application of hydrogel encapsulated carbonate precipitating bacteria for approaching a realistic self-healing in concrete[J].Construction&Building Materials,2014,68(68):110-119.
[19]WANG J Y,SOENS H,VERSTRAETE W,et al.Self-healing concrete by use of microencapsulated bacterial spores[J].Cement and Concrete Research,2014,56(2):139-152.
[20]WANG J,TITTELBOOM K V,BELIE N D,et al.Use of silica gel or polyurethane immobilized bacteria for self-healing concrete[J].Construction&Building Materials,2012,26(1):532-540.
[21]ACHAL V,MUKHERJEE A,REDDY M S.Microbial concrete:a way to enhance the durability of building structures[J].Journal of Materials in Civil Engineering,2011,23(6):730-734.
[22]QIAN C,CHEN H,REN L,et al.Self-healing of early age cracks in cement-based materials by mineralization of carbonic anhydrase microorganism.[J].Frontiers in Microbiology,2015,6(314).
[23]CHOI S G,Chu J,Brown R C,et al.Sustainable biocement production via microbially-induced calcium carbonate precipitation:use of limestone and acetic acid derived from pyrolysis of lignocellulosic biomass[J].Acs Sustainable Chemistry&Engineering,2017,5(6).
[2]李沛豪,屈文俊.生物修复加固材料在土木工程中的应用研究进展[J].材料科学与工程学报,2008(5):810-815.
[3]潘庆峰.混凝土裂缝的微生物自修复机理及自修复剂研究[D].南京:东南大学,2012.
[4]徐铮澄.商品混凝土裂缝的成因与防治[J].混凝土,2002(5):63-64.
[5]徐进刚.混凝土裂缝的相关分析[J].浙江水利水电学院学报,2006,18(3):49-52.
[6]陈光耀,吴笑梅,樊粤明.水泥基渗透结晶型防水材料的作用机理分析[J].新型建筑材料,2009,36(8):68-71.
[7]张妃二,姚立宁.光纤智能混凝土结构自修复的研究[J].功能材料与器件学报,2003,9(1):91-94.
[8]KUANG Y C,JIN-PING O U.Passive smart self-repairing concrete beams by using shape memory alloy wires and fibers containing adhesives[J].中南大学学报(英文版),2008,15(3):411-417.
[9]WHIFFIN V S.Microbial CaCO3precipitation for the production of biocement[J].2004(2004).
[10]MUYNCK W D,BELIE N D,VERSTRAETE W.Microbial carbonate precipitation in construction materials:a review[J].Ecological Engineering,2010,36(2):118-136.
[11]ANDALIB R,MAJID M Z A,KEYVANFAR A,et al.Durability improvement assessment in different high strength bacterial structural concrete grades against different types of acids[J].Sadhana,2014,39(6):1509-1522.
[12]ERSAN Y ?,HERNANDEZ-SANABRIA E,BOON N,et al.Enhanced crack closure performance of microbial mortar through nitrate reduction[J].Cement&Concrete Composites,2016(70):159-170.
[13]JONKERS H M,THIJSSEN A,MUYZER G,et al.Application of bacteria as self-healing agent for the development of sustainable concrete[J].Ecological Engineering,2010,36(2):230-235.
[14]JONKERS H M.Self Healing concrete:a biological approach[M]//Self Healing Materials,2007:195.
[15]WANG J Y,BELIE N D,VERSTRAETE W.Diatomaceous earth as a protective vehicle for bacteria applied for self-healing concrete[J].Journal of Industrial Microbiology&Biotechnology,2012,39(4):567-577.
[16]王瑞兴,钱春香.微生物沉积碳酸钙修复水泥基材料表面缺陷[J].硅酸盐学报,2008,36(4):37-44.
[17]WIKTOR V,JONKERS H M.Quantification of crack-healing in novel bacteria-based self-healing concrete[J].Cement&Concrete Composites,2011,33(7):763-770.
[18]WANG J Y,SNOECK D,VLIERBERGHE S V,et al.Application of hydrogel encapsulated carbonate precipitating bacteria for approaching a realistic self-healing in concrete[J].Construction&Building Materials,2014,68(68):110-119.
[19]WANG J Y,SOENS H,VERSTRAETE W,et al.Self-healing concrete by use of microencapsulated bacterial spores[J].Cement and Concrete Research,2014,56(2):139-152.
[20]WANG J,TITTELBOOM K V,BELIE N D,et al.Use of silica gel or polyurethane immobilized bacteria for self-healing concrete[J].Construction&Building Materials,2012,26(1):532-540.
[21]ACHAL V,MUKHERJEE A,REDDY M S.Microbial concrete:a way to enhance the durability of building structures[J].Journal of Materials in Civil Engineering,2011,23(6):730-734.
[22]QIAN C,CHEN H,REN L,et al.Self-healing of early age cracks in cement-based materials by mineralization of carbonic anhydrase microorganism.[J].Frontiers in Microbiology,2015,6(314).
[23]CHOI S G,Chu J,Brown R C,et al.Sustainable biocement production via microbially-induced calcium carbonate precipitation:use of limestone and acetic acid derived from pyrolysis of lignocellulosic biomass[J].Acs Sustainable Chemistry&Engineering,2017,5(6).