Repair effect of tabia cracks with microbially induced carbonate precipitation
LIU Shiyu1，2，YU Jin1，ZENG Weilong1，PENG Xingqian1，3，CAI Yanyan1，TU Bingxiong1#br#
(1. College of Civil Engineering，Huaqiao University，Xiamen，Fujian 361021，China；2. Fujian Research Center for Tunneling and Urban Underground Space Engineering，Huaqiao University，Xiamen，Fujian 361021，China；3. School of Architecture and Civil Engineering，Xiamen Institute of Technology，Xiamen，Fujian 361021，China)
Abstract：Cracks as a damage type of earthen sites not only destroy tabia structure integrity but also degrade mechanical properties due to providing preferential paths for rainfall infiltration. Therefore，the repair of tabia cracks is an important part of protection and reinforcement of earthen sites. Due to that calcium carbonate is one of the main components of the tabia，the use of microbially induced carbonate precipitation(MICP) technical to repair and protect the tabia is not only environmentally friendly but also compatible with the substrate. In this paper，a crack repair method dominated by MICP was proposed to repair the cracks of the tabia，and the repair effect was evaluated by experimental test. First，the influencing factors of MICP test and the reinforced soil column test were carried out to determine the suitable parameters for repairing cracks，including the concentrations of bacteria and cementation reagent，filled soil particles and the number of grouting cycles. Then，the pre-damaged tabia samples were repaired using MICP with the suitable parameters，and the repair effect was verified. The results show that，when the crack width is 5 mm，the recovery ratios of the average flexural strength and shear strength of the specimens repaired by MICP are respectively 79.92% and 88.54%，showing a very satisfactory repairing ability，while that the recovery ratio tends to decrease as the crack width increases. In addition，the static contact angle test results show that the MICP not only repairs the crack but also enhances the hydrophobicity of the crack. MICP technology can be used as an effective method to repair cracks in the tabia.
[1] FRANCESCA S，ANDREA N，FRANCESCA T，et al. An experimental study on earth plasters for earthen building protection：The effects of different admixtures and surface treatments[J]. Journal of Cultural Heritage，2016，17：27–41.
[2] UNESCO. Fujian Tulou，World Heritage Convention(WHC) Advisory body evaluation report No. 1113[R]. Paris，France：UNESCO World Heritage Centre，2008.
[3] 黄汉民，陈立慕. 福建土楼建筑[M]. 福州：福建科学技术出版社，2012：164–165.(HUANG Hanmin，CHEN Limu. Fujian Tulou[M]. Fujian Science and Technology Press，2012：164–165.(in Chinese))
[4] SILVA R A，OLIVEIRA D V，SCHUEREMANS L，et al. Effectiveness of the repair of unstabilised rammed earth with injection of mud grouts[J]. Construction and Building Materials，2016，127：861–871.
[5] SCHULLER M P，ATKINSON R H，BORGSMILLER J T. Injection grouting for repair and retrofit of unreinforced masonry[C]// Proceedings of the 10th IB2 MaC. Calgary，Canada：[s. n.]，1994：549–558.
[6] OLIVEIRA D V，SILVA R A，GARBIN E，et al. Strengthening of three-leaf stone masonry walls：an experimental research[J]. Materials and Structures，2012，45(8)：1 259–1 276.
[7] PAPAYIANNI I，PACHTA V. Experimental study on the performance of lime-based grouts used in consolidating historic masonries[J]. Materials and Structures，2015，48(7)：2 111–2 121.
[8] VINTZILEOU E，MOUZAKIS C，ADAMI C E，et al. Seismic behavior of three leaf stone masonry buildings before and after interventions：shaking table tests on a two-storey masonry model[J]. Bulletin of Earthquake Engineering，2015，13(10)：3 107–3 133.
[9] PINEDA P，GARCIA M A，CASTIZO M D. Environmental and structural analysis of cement-based vs. natural material-based grouting mortars. Results from the assessment of strengthening works[J]. Construction and Building Materials，2017，138：528–547.
[10] LUSO E，LOURENCO P B. Experimental characterization of commercial lime based grouts for stone masonry consolidation[J]. Construction and Building Materials，2016，102(1)：216–225.
[11] JORNE F，HENRIQUES F M A，BALTAZAR L G. Influence of superplasticizer，temperature，resting time and injection pressure on hydraulic lime grout injectability. Correlation analysis between fresh grout parameters and grout injectability[J]. Journal of Building Engineering，2015，4：140–151.
[12] JORNE F，HENRIQUES F M A. Evaluation of the grout injectability and types of resistance to grout flow[J]. Construction and Building Materials，2016，122：171–183.
[13] SILVA R A，SCHUEREMANS L，OLIVEIRA D V. Grouting as a repair/strengthening solution for earth constructions[C]// Proceedings of the 1st WTA International PhD Symposium on Building Materials and Building Technology to Preserve the Built Heritage. Leuven，Belgium：[s. n.]，2009：1–16.
[14] SILVA R A，JAQUIN P，OLIVEIRA D V，et al. Conservation and new construction solutions in rammed earth[C]// Structural Rehabilitation of Old Buildings. COSTA A，GUEDES J M，VARUM H，ed.，Berlin Heidelberg：Springer，2014：77–108.
[15] SILVA R A，SCHUEREMANS L，OLIVEIRA D V. Repair of earth masonry by means of grouting：Importance of clay in the rheology of a mud grout[C]// Proceedings of the 8th International Masonry Conference. Dresden，Germany：[s. n.]，2010：1–10.
[16] SILVA R A，SCHUEREMANS L，OLIVEIRA D V，et al. On the development of unmodified mud grouts for repairing earth constructions：rheology，strength and adhesion[J]. Materials and Structures，2012，45(10)：1 497–1 512.
[17] FIGUEIREDO A，VARUM H，COSTA A，et al. Seismic retrofitting solution of an adobe masonry wall[J]. Materials and Structures，2013，46(1)：203–219.
[18] MULLER U，MICCOLI L，FONTANA F. Development of a lime based grout for cracks repair in earthen constructions[J]. Construction and Building Materials，2016，110(1)：323–332.
[19] 李 悦，于鹏超，刘金鹏，等. 改性水硬性石灰基材料的制备与耐久性[J]. 北京工业大学学报，2017，43(2)：269–277.(LI Yue，YU Pengchao，LIU Jinpeng，et al. Preparation and durability of modified hydraulic lime-baded material[J]. Journal of Beijing University of Technology，2017，43(2)：269–277.(in Chinese))
[20] 李最雄，汪万福，赵林毅，等. 西藏布达拉宫、罗布林卡和萨迦寺空鼓壁画修复模拟实验[J]. 敦煌研究，2002，(6)：69–77.(LI Zuixiong，WANG Wanfu，ZHAO Linyi，et al. An report of simulating experiment on restoration detachment murals for Potala Palace，Norbuglinkha and Sa-Skya Monastery，Tibetan[J]. Dunhuang Research，2002，(6)：69–77.(in Chinese))
[21] 周双林，原思训. 有机硅改性丙烯酸树脂非水分散体的制备及在土遗址保护中的试用[J]. 文物保护与考古科学，2004，16(4)：50–52.(ZHOU Shuanglin，YUAN Sixun. Silicone modified non aqueous dispersion of acrylic latex：its preparation and test on its ability of anti-weathering on earthen archaeological site[J]. Sciences of Conservation and Archaeology，2004，16(4)：50–52.(in Chinese))
[22] 李 黎，赵林毅，王金华，等. 我国古代建筑中两种传统硅酸盐材料的物理力学特性研究[J]. 岩石力学与工程学报，2011，30(10)：2 120–2 127.(LI li，ZHAO Linyi，WANG Jinhua，et al. Research on physical and mechanical characteristics of two traditional silicate materials in Chinese ancient buildings[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(10)：2 120–2 127.(in Chinese))
[23] 谌文武，刘 建，崔 凯，等. 土遗址裂隙注浆材料PS-(C+F)与SH-(C+F)性能对比研究[J]. 文物保护与考古科学，2017，29(5)：70–76.(CHEN Wenwu，LIU Jian，CUI Kai，et al. The comparative study to performance of the earthen sites fissure grouting material PS-(C+F) and SH-(C+F)[J]. Sciences of Conservation and Archaeology，2017，29(5)：70–76.(in Chinese))
[24] 张景科，王 南，樊 孟，等. 烧料礓石改性遗址土裂隙注浆材料龄期性能试验研究[J]. 岩石力学与工程学报，2018，37(1)：220–229. (ZHANG Jingke，WANG Nan，FAN Meng，et al. Experimental study on age properties of fissure grouting material composed of calcined ginger nuts and earthen site soil[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(1)：220–229.(in Chinese))
[25] MUYNCK D W，BELIE D N，VERSTRAETE W. Microbial carbonate precipitation in construction materials：a review[J]. Ecological Engineering，2010，36(2)：118–136.
[26] 钱春香，任立夫，罗 勉. 基于微生物诱导矿化的混凝土表面缺陷及裂缝修复技术研究进展[J]. 硅酸盐学报，2015，43(5)：619–631. (QIAN Chunxiang，REN Lifu，LUO Mian. Development of concrete surface defects and cracks repair technology based on microbial- induced mineralization[J]. Journal of the Chinese Ceramic Society，2015，43(5)：619–631.(in Chinese))
[27] ACHAL V，MUKHERJEE A. A review of microbial precipitation for sustainable construction[J]. Construction and Building Materials，2015，93：1 224–1 235.
[28] 何 稼，楚 剑，刘汉龙，等. 微生物岩土技术的研究进展[J]. 岩土工程学报，2016，38(4)：643–653.(HE Jia，CHU Jian，LIU Hanlong，et al. Research advances in biogeotechnologies[J]. Chinese Journal of Geotechnical Engineering，2016，38(4)：643–653.(in Chinese))
[29] 程晓辉，麻 强，杨 钻，等. 微生物灌浆加固液化砂土地基的动力反应研究[J]. 岩土工程学报，2013，35(8)：1 486–1 495.(CHENG Xiaohui，MA Qiang，YANG Zuan，et al. Dynamic response of liquefiable sand foundation improved by bio-grouting[J]. Chinese Journal of Geotechnical Engineering，2013，35(8)：1 486–1 495.(in Chinese))
[30] 方祥位，申春妮，楚 剑，等. 微生物沉积碳酸钙固化珊瑚砂的试验研究[J]. 岩土力学，2015，36(10)：2 773–2 779.(FANG Xiangwei，SHEN Chunni，CHU Jian，et al. An experimental study of coral sand enhanced through microbially-induced precipitation of calcium carbonate[J]. Rock and Soil Mechanics，2015，36(10)： 2 773–2 779.(in Chinese))
[31] 刘汉龙，肖 鹏，肖 杨，等. MICP胶结钙质砂动力特性试验研究[J]. 岩土工程学报，2018，40(1)：38–45.(LIU Hanlong，XIAO Peng，XIAO Yang，et al. Dynamic behaviors of MICP-treated calcareous sand in cyclic tests[J]. Chinese Journal of Geotechnical Engineering，2018，40(1)：38–45.(in Chinese))
[32] 孙潇昊，缪林昌，童天志，等. 砂土微生物固化过程中尿素的影响研究[J]. 岩土工程学报，2018，40(5)：939–944.(SUN Xiaohao，MIAO Linchang，TONG Tianzhi，et al. Effect of methods of adding urea in culture media on sand solidification tests[J]. Chinese Journal of Geotechnical Engineering，2018，40(5)：939–944.(in Chinese))
[33] 黄 明，张瑾璇，靳贵晓，等. 残积土MICP灌浆结石体冻融损伤的核磁共振特性试验研究[J]. 岩石力学与工程学报，2018，37(12)：2 846–2 855.(HUANG Ming，ZHANG Jinxuan，JIN Guixiao，et al. Magnetic resonance image experiments on the damage feature of microbial induced calcite precipitated residual soil during freezing-thawing cycles[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(12)：2 846–2 855.(in Chinese))
[34] 李 驰，王 硕，王燕星，等. 沙漠微生物矿化覆膜及其稳定性的现场试验研究[J]. 岩土力学，2019，40(4)：1–8.(LI Chi，WANG Shuo，WANG Yanxing，et al. Field experimental study on stability of bio-mineralization crust in ulan buh desert，Inner Mongolia of China[J]. Rock and Soil Mechanics，2019，40(4)：1–8.(in Chinese))
[35] QIAN C，WANG J，WANG R，et al. Corrosion protection of cement-based building materials by surface deposition of CaCO3 by Bacillus pasteurii[J]. Materials Science and Engineering C，2009，29：1 273–1 280.
[36] 荣 辉，钱春香，张 磊，等. 微生物水泥的胶结过程[J]. 硅酸盐学报，2015，43(8)：1 067–1 075.(RONG Hui，QIAN Chunxiang，ZHANG Lei，et al. Cementation process of microbe cement[J]. Journal of the Chinese Ceramic Society，2015，43(8)：1 067–1 075.(in Chinese))
[37] SOURADEEP G，DAI P S，WEI K H. Autonomous healing in concrete by bio-based healing agents-A review[J]. Construction and Building Materials，2017，146：419–428.
[38] YANG Z，CHENG X H. A performance study of high-strength microbial mortar produced by low pressure grouting for the reinforcement of deteriorated masonry structures[J]. Construction and Building Materials，2013，41：505–515.
[39] MUYNCK D W，VERBEKEN K，BELIE D N，et al. Influence of urea and calcium dosage on the effectiveness of bacterially induced carbonate precipitation on limestone[J]. Ecological Engineering，2009，36：99–111.
[40] MUYNCK D W，LEURIDAN S，VAN L D，et al. Influence of pore structure on the effectiveness of a biogenic carbonate surface treatment for limestone conservation[J]. Applied and Environmental Microbiology， 2011，77：6 808–6 820.
[41] 刘士雨，俞 缙，韩 亮，等. 三合土表面微生物诱导碳酸钙沉淀耐水性试验研究[J]. 岩石力学与工程学报，2019，38(8)：1 718– 1 728.(LIU Shiyu，YU Jin，HAN Liang，et al. Experimental study on water resistance of tabia surface with microbially induced carbonate precipitation[J]. Chinese Journal of Rock Mechanics and Engineering， 2019，38(8)：1 718–1 728.(in Chinese))
[42] 中华人民共和国行业标准编写组. SL237—1999土工试验规程[S]. 北京：中国水利水电出版社，1999.(The Professional Standards Compilation Group of the People¢s Republic of China. SL237—1999 Specification of soil test[S]. Beijing：China Water and Power Press，1999.(in Chinese))
[43] 宋应星，潘吉星. 天工开物[M]. 上海：上海古籍出版社，2008：208–209.(SONG Yingxing，PAN Jixing. Tiangong Kaiwu[M]. Shanghai：Shanghai Classics Publishing House，2008：208–209.(in Chinese))
[44] American Society for Testing and Materials. ASTM D3551 Standard practice for laboratory preparation of soil-lime mixtures using mechanical mixer[S]. West Conshohocken(PA)：ASTM International，2008.
[45] American Society for Testing and Materials. ASTM D1557 Standard test methods for laboratory compaction characteristics of soil using modified effort[S]. West Conshohocken(PA)：ASTM International，2009.
[46] 中华人民共和国国家标准编写组. GB/T50082—2009普通混凝土长期性能和耐久性能试验方法标准[S]. 北京：中国建筑工业出版社，2009.(The National Standard Compilation Group of the People′s Republic of China. GB/T50082—2009 Standard for test methods of long-term performance and durability of ordinary concrete[S]. Beijing：China Architecture and Building Press，2009.(in Chinese))
[47] WHIFFIN V S. Microbial CaCO3 precipitation for the production of biocement[Ph. D. Thesis][D]. Western Australia：Murdoch University， 2004.
[48] American Society for Testing and Materials. ASTM E 519 Standard Test Method for Diagonal Tension(Shear) in Masonry Assemblages[S]. West Conshohocken(PA)：ASTM International，2002.
[49] DEJONG J T，MORTENSON B M，MARTINEZ B C，et al. Bio-mediated soil improvement[J]. Ecological Engineering，2010，36(2)：197–210.
[50] Standards New Zealand. NZS 4298：1998 Materials and workmanship for earth building[S]. Wellington：[s. n.]，1998.
2020, Vol. 39 
