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A platform for research: civil engineering, architecture and urbanism
Carbon-immobilized biological foam concrete and preparation method thereof
The invention discloses a carbon immobilization biological foam concrete and a preparation method thereof, the concrete comprises the following components in parts by weight: 500-850 parts of cement, 700-1200 parts of river sand, 220-500 parts of water, 25-50 parts of foaming agent and 20-45 parts of bacillus tequilensis, the cement adopts ordinary Portland cement with grade 525, the river sand adopts ordinary Portland cement with grade 525, and the water adopts ordinary Portland cement with grade 525. The quality of the river sand meets the national standard of General Portland Cement GB175-2017, the particle size of the river sand is smaller than 1 mm, tap water is adopted as the water, the quality of the river sand meets the domestic water standard, a composite foaming agent is adopted as the foaming agent, the main component of the composite foaming agent is microbial protein, a natural plant foaming agent is compounded, the appearance of the composite foaming agent is dark brown viscous liquid, the density of the composite foaming agent is 1.05-1.20 g/cm < 3 >, and the foaming times of the composite foaming agent is 40-70 times. According to the method, bacillus tequilensis is used as a natural carbonization accelerating factor, carbonic anhydrase and urease are generated by the bacillus tequilensis, absorption of CO2 is accelerated, CaCO3 precipitates are generated, and therefore the purpose of carbon immobilization is achieved.
本发明公开了一种碳固存生物泡沫混凝土及其制备方法，混凝土由水泥、河砂、水、发泡剂和特基拉芽孢杆菌组成，其重量份数的组分为：水泥500‑850份，河砂700‑1200份，水220‑500份，发泡剂25‑50份，特基拉芽孢杆菌20‑45份，所述水泥采用标号为525级普通硅酸盐水泥，其质量符合国家标准《通用硅酸盐水泥》GB175‑2017，河砂的粒径小于1mm，所述水采用自来水，其质量符合生活用水标准，发泡剂采用复合发泡剂，其主要成分为微生物蛋白，复配天然植物起泡剂，外观呈暗褐色粘性液体，密度为1.05‑1.20g/cm3，发泡倍数为40‑70倍。本发明利用特基拉芽孢杆菌作为自然碳化加速因子，利用其产生碳酸酐酶和脲酶，加速CO2的吸收，产生CaCO3沉淀，从而达到碳固存的目的。
Carbon-immobilized biological foam concrete and preparation method thereof
The invention discloses a carbon immobilization biological foam concrete and a preparation method thereof, the concrete comprises the following components in parts by weight: 500-850 parts of cement, 700-1200 parts of river sand, 220-500 parts of water, 25-50 parts of foaming agent and 20-45 parts of bacillus tequilensis, the cement adopts ordinary Portland cement with grade 525, the river sand adopts ordinary Portland cement with grade 525, and the water adopts ordinary Portland cement with grade 525. The quality of the river sand meets the national standard of General Portland Cement GB175-2017, the particle size of the river sand is smaller than 1 mm, tap water is adopted as the water, the quality of the river sand meets the domestic water standard, a composite foaming agent is adopted as the foaming agent, the main component of the composite foaming agent is microbial protein, a natural plant foaming agent is compounded, the appearance of the composite foaming agent is dark brown viscous liquid, the density of the composite foaming agent is 1.05-1.20 g/cm < 3 >, and the foaming times of the composite foaming agent is 40-70 times. According to the method, bacillus tequilensis is used as a natural carbonization accelerating factor, carbonic anhydrase and urease are generated by the bacillus tequilensis, absorption of CO2 is accelerated, CaCO3 precipitates are generated, and therefore the purpose of carbon immobilization is achieved.
本发明公开了一种碳固存生物泡沫混凝土及其制备方法，混凝土由水泥、河砂、水、发泡剂和特基拉芽孢杆菌组成，其重量份数的组分为：水泥500‑850份，河砂700‑1200份，水220‑500份，发泡剂25‑50份，特基拉芽孢杆菌20‑45份，所述水泥采用标号为525级普通硅酸盐水泥，其质量符合国家标准《通用硅酸盐水泥》GB175‑2017，河砂的粒径小于1mm，所述水采用自来水，其质量符合生活用水标准，发泡剂采用复合发泡剂，其主要成分为微生物蛋白，复配天然植物起泡剂，外观呈暗褐色粘性液体，密度为1.05‑1.20g/cm3，发泡倍数为40‑70倍。本发明利用特基拉芽孢杆菌作为自然碳化加速因子，利用其产生碳酸酐酶和脲酶，加速CO2的吸收，产生CaCO3沉淀，从而达到碳固存的目的。
Carbon-immobilized biological foam concrete and preparation method thereof
一种碳固存生物泡沫混凝土及其制备方法
LIN JIANHUA (author) / LIU FANGNING (author) / LV LIANGSHENG (author) / LIU JIAN (author) / JIANG WEI (author) / CHEN MENG (author) / ZHU BINGZHANG (author) / SONG JIAN (author) / PENG JING (author)
2022-06-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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