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Microorganism mineralized recycled coarse aggregate and soil coagulated rock solidified fully-doped recycled aggregate concrete as well as preparation method and application thereof
The invention discloses microorganism mineralized recycled coarse aggregate and soil coagulated rock solidified fully-doped recycled aggregate concrete as well as a preparation method and application thereof, and belongs to the technical field of building materials. The preparation method of the microorganism mineralized recycled coarse aggregate comprises the following steps: uniformly spraying a bacillus pasteurii liquid on the surface of the recycled coarse aggregate, and then maintaining; and after curing is finished, adding a mineralization nutrient solution, and continuously curing to obtain the microbial mineralization regenerated coarse aggregate. The prepared microorganism mineralized recycled coarse aggregate can be fully doped for preparation of concrete, and core mechanical technical indexes such as compressive strength and breaking strength of the concrete and technical indexes of frost resistance and durability can be remarkably improved. In addition, the invention also initiatively uses the soil coagulated rock instead of cement as a cementing material to prepare the solidified fully-doped recycled aggregate concrete, which is energy-saving and environment-friendly, and has important engineering significance and ecological benefits.
本发明公开了微生物矿化再生粗骨料和土凝岩固化全掺再生骨料混凝土、其制备方法及应用，属于建筑材料技术领域。所述微生物矿化再生粗骨料的制备方法如下：将巴氏芽孢杆菌菌液均匀地洒在再生粗骨料表面，然后进行养护；待养护结束后，加入矿化营养液，继续进行养护，获得微生物矿化再生粗骨料。本发明所制备的微生物矿化再生粗骨料可全掺用于混凝土的制备，并能显著提升混凝土的抗压强度、抗折强度等核心力学技术指标和抗冻性能耐久性技术指标。此外，本发明还首创地将土凝岩替代水泥作为胶凝材料用于固化全掺再生骨料混凝土的制备，节能环保，具有重要的工程意义和生态效益。
Microorganism mineralized recycled coarse aggregate and soil coagulated rock solidified fully-doped recycled aggregate concrete as well as preparation method and application thereof
The invention discloses microorganism mineralized recycled coarse aggregate and soil coagulated rock solidified fully-doped recycled aggregate concrete as well as a preparation method and application thereof, and belongs to the technical field of building materials. The preparation method of the microorganism mineralized recycled coarse aggregate comprises the following steps: uniformly spraying a bacillus pasteurii liquid on the surface of the recycled coarse aggregate, and then maintaining; and after curing is finished, adding a mineralization nutrient solution, and continuously curing to obtain the microbial mineralization regenerated coarse aggregate. The prepared microorganism mineralized recycled coarse aggregate can be fully doped for preparation of concrete, and core mechanical technical indexes such as compressive strength and breaking strength of the concrete and technical indexes of frost resistance and durability can be remarkably improved. In addition, the invention also initiatively uses the soil coagulated rock instead of cement as a cementing material to prepare the solidified fully-doped recycled aggregate concrete, which is energy-saving and environment-friendly, and has important engineering significance and ecological benefits.
本发明公开了微生物矿化再生粗骨料和土凝岩固化全掺再生骨料混凝土、其制备方法及应用，属于建筑材料技术领域。所述微生物矿化再生粗骨料的制备方法如下：将巴氏芽孢杆菌菌液均匀地洒在再生粗骨料表面，然后进行养护；待养护结束后，加入矿化营养液，继续进行养护，获得微生物矿化再生粗骨料。本发明所制备的微生物矿化再生粗骨料可全掺用于混凝土的制备，并能显著提升混凝土的抗压强度、抗折强度等核心力学技术指标和抗冻性能耐久性技术指标。此外，本发明还首创地将土凝岩替代水泥作为胶凝材料用于固化全掺再生骨料混凝土的制备，节能环保，具有重要的工程意义和生态效益。
Microorganism mineralized recycled coarse aggregate and soil coagulated rock solidified fully-doped recycled aggregate concrete as well as preparation method and application thereof
微生物矿化再生粗骨料和土凝岩固化全掺再生骨料混凝土、其制备方法及应用
XU QINGCHAO (author) / WANG JIABIN (author) / FU KUNHAO (author) / HUANG CHANGHAO (author) / WAN HAIFENG (author) / WANG YU (author) / WEI SHAODONG (author) / WANG SHENGJIE (author) / LI JUN (author) / MA YA (author)
2024-05-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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