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A platform for research: civil engineering, architecture and urbanism
Pervious concrete with high early strength and high carbon sequestration content and preparation method of pervious concrete
The invention provides a preparation method of pervious concrete with both high early strength and high carbon sequestration content, which comprises the following steps: uniformly mixing cement, limestone powder, silica fume, quartz sand, bauxite aggregate and nanocellulose according to a certain proportion to obtain a mixture; adding water and a water reducing agent into the mixture, and uniformly mixing to obtain slurry; and after pre-curing the slurry, carrying out carbonization curing at normal temperature and normal pressure to obtain the pervious concrete with both high early strength and high carbon sequestration content. According to the invention, a scheme of combining raw material optimization and a curing process is adopted, and porous high-strength bauxite aggregate is introduced, so that the strength and carbonization efficiency of the pervious concrete are improved; the nano cellulose is introduced to increase the thickness of the coating layer and induce a carbonization product to further enhance the mechanical property of the pervious concrete, so that the energy consumption is reduced and carbon dioxide in industrial tail gas can be effectively utilized while a high-strength and high-durability pervious concrete product is obtained, and good economic benefits, environmental benefits and social benefits are achieved.
本发明提供一种兼顾高早强与高固碳量的透水混凝土的制备方法，包括以下步骤：将水泥、石灰石粉、硅灰、石英砂、铝矾土骨料和纳米纤维素按一定比例混匀，得到混合物；向混合物中加入水和减水剂，混匀后得到浆体；所述浆体经预养护后，置于常温常压下进行碳化养护，即得到兼顾高早强与高固碳量的透水混凝土。本发明采用原料优化和养护工艺相结合的方案，引入多孔高强铝矾土骨料，提升透水混凝土的强度与碳化效率；引入纳米纤维素增加包裹层厚度的同时诱导碳化产物进而增强透水混凝土的力学性能，在获得高强、高耐久的透水混凝土制品的同时，既降低能源消耗，又能有效利用工业尾气中的二氧化碳，具有良好的经济效益、环境效益和社会效益。
Pervious concrete with high early strength and high carbon sequestration content and preparation method of pervious concrete
The invention provides a preparation method of pervious concrete with both high early strength and high carbon sequestration content, which comprises the following steps: uniformly mixing cement, limestone powder, silica fume, quartz sand, bauxite aggregate and nanocellulose according to a certain proportion to obtain a mixture; adding water and a water reducing agent into the mixture, and uniformly mixing to obtain slurry; and after pre-curing the slurry, carrying out carbonization curing at normal temperature and normal pressure to obtain the pervious concrete with both high early strength and high carbon sequestration content. According to the invention, a scheme of combining raw material optimization and a curing process is adopted, and porous high-strength bauxite aggregate is introduced, so that the strength and carbonization efficiency of the pervious concrete are improved; the nano cellulose is introduced to increase the thickness of the coating layer and induce a carbonization product to further enhance the mechanical property of the pervious concrete, so that the energy consumption is reduced and carbon dioxide in industrial tail gas can be effectively utilized while a high-strength and high-durability pervious concrete product is obtained, and good economic benefits, environmental benefits and social benefits are achieved.
本发明提供一种兼顾高早强与高固碳量的透水混凝土的制备方法，包括以下步骤：将水泥、石灰石粉、硅灰、石英砂、铝矾土骨料和纳米纤维素按一定比例混匀，得到混合物；向混合物中加入水和减水剂，混匀后得到浆体；所述浆体经预养护后，置于常温常压下进行碳化养护，即得到兼顾高早强与高固碳量的透水混凝土。本发明采用原料优化和养护工艺相结合的方案，引入多孔高强铝矾土骨料，提升透水混凝土的强度与碳化效率；引入纳米纤维素增加包裹层厚度的同时诱导碳化产物进而增强透水混凝土的力学性能，在获得高强、高耐久的透水混凝土制品的同时，既降低能源消耗，又能有效利用工业尾气中的二氧化碳，具有良好的经济效益、环境效益和社会效益。
Pervious concrete with high early strength and high carbon sequestration content and preparation method of pervious concrete
一种兼顾高早强与高固碳量的透水混凝土及其制备方法
CHEN ZIYING (author) / LI SHAOHUA (author) / DU YAOFEI (author) / MO KAICHUANG (author) / GENG TENGFENG (author) / ZHANG YU (author) / LUO BAOZHEN (author) / WU CHUANLONG (author) / ZHOU ZIMO (author) / DING XIANGCHENG (author)
2024-07-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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