| 细菌诱导矿化保护历史建筑遗产的机理及效果 |
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| 引用本文： | 李沛豪,屈文俊.细菌诱导矿化保护历史建筑遗产的机理及效果[J].硅酸盐学报,2009,37(4). |
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| 作者姓名： | 李沛豪 屈文俊 |
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| 作者单位： | 同济大学土木工程学院建筑工程系,上海,200092 |
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| 基金项目： | 国家自然科学基金，国家科技支撑计划 |
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| 摘 要： | 为了研究细菌诱导碳酸钙在大理石、混凝土基材表层矿化沉积形成的人工层对基材加固保护的机理及性能,用X射线衍射、扫描电镜、压汞仪及超声波研究分析了矿化晶体物相,矿化层生长,沉积晶体对基材孔隙的影响以及矿化层黏结与保护效果.结果表明:矿化晶体为方解石和球文石;Ca2+源影响碳酸钙矿化沉积晶相,细菌在晶体矿化沉积过程中充当成核位点,且晶体均匀生长在基材表面;沉积致使试样孔隙率减少,但对孔隙分布无显著影响;矿化层与基材可以形成有效黏结.
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| 关 键 词： | 细菌 碳酸钙 生物矿化 生物修复 加固 历史建筑 |
MECHANISM AND PERFORMANCE OF REMEDIATION FOR HISTORIC BUILDINGS BY BACTERIALLY INDUCED MINERALIZATION |
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| LI Peihao,QU Wenjun.MECHANISM AND PERFORMANCE OF REMEDIATION FOR HISTORIC BUILDINGS BY BACTERIALLY INDUCED MINERALIZATION[J].Journal of The Chinese Ceramic Society,2009,37(4). |
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| Authors: | LI Peihao QU Wenjun |
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| Affiliation: | Department of Building Engineering;College of Civil Engineering;Tongji University;Shanghai 200092;China |
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| Abstract: | To study the mechanism and performance of protection for historic buildings conducted by bacterially induced carbonate mineralization on the surface of marble and concrete as matrix,the composition and growth of the mineral deposited on the matrix,the porosity or pore size distribution of the matrix and the efficiency of protection were analyzed by X-ray diffraction,scanning electron microscopy,mercury intrusion porosimetry and ultrasonic test. The results show that the phases of mineral crystal are calcite... |
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| Keywords: | bacterium calcium carbonate biomineralization bioremediation bioreinforcement historic building |
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