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Micro-expansive cement mortar capable of degrading nitrogen oxides under natural light and preparation method of micro-expansive cement mortar
The invention discloses micro-expansive cement mortar capable of degrading nitrogen oxides under natural light. The concrete is prepared by mixing the following components in parts by weight: 0.01 to 0.03 part of amphoteric graphite phase carbon nitride, 0.04 to 0.08 part of desulfurized gypsum, 0.05 to 0.1 part of coal gangue powder, 0.1 to 0.2 part of steel slag powder, 0.001 to 0.005 part of a plastic expanding agent, 0.001 to 0.005 part of a defoaming agent, 0.001 to 0.002 part of a powdery polycarboxylic acid water reducing agent, 0.001 to 0.003 part of a mineral activity exciting agent, 0.001 to 0.005 part of perlite, 0.5 to 0.7 part of ordinary portland cement, 2 to 4 parts of building sand and 0.4 part of water. Except for the water and the building sand, the total amount of the other components is 1 part. The efficient photocatalytic performance of the amphoteric graphite phase carbon nitride under visible light is utilized to effectively degrade the harmful component nitrogen oxide in the air, and a positive effect on environment purification is achieved; the micro-expansion performance generated by the expansion component can reduce mortar shrinkage cracks, the durability and attractiveness of the material are improved, meanwhile, a large amount of industrial solid waste such as desulfurized gypsum, coal gangue and steel slag is used, resource recycling is facilitated, and environmental pollution is reduced.
本发明公开了一种在自然光下可降解氮氧化物的微膨胀水泥砂浆，各组分含量以重量份计为：两性石墨相氮化碳0.01‑0.03份、脱硫石膏0.04‑0.08份、煤矸石粉0.05‑0.1份、钢渣粉0.1‑0.2份、塑性膨胀剂0.001‑0.005份、消泡剂0.001‑0.005份、粉体聚羧酸减水剂0.001‑0.002份、矿物活性激发剂0.001‑0.003份、珍珠岩0.001‑0.005份、普硅水泥0.5‑0.7份、建筑用砂2‑4份及0.4份水拌合而成，上述组分中除水和建筑用砂外，其他组分总量计为1份。本发明利用两性石墨相氮化碳在可见光下的高效光催化性能，有效降解空气中的有害成分氮氧化物，对净化环境起到积极作用；膨胀组分产生的微膨胀性能可降低砂浆收缩裂缝的产生，提高材料的耐久性及美观度，同时大量使用脱硫石膏、煤矸石和钢渣等工业固废，有利于资源循环利用、降低环境污染。
Micro-expansive cement mortar capable of degrading nitrogen oxides under natural light and preparation method of micro-expansive cement mortar
The invention discloses micro-expansive cement mortar capable of degrading nitrogen oxides under natural light. The concrete is prepared by mixing the following components in parts by weight: 0.01 to 0.03 part of amphoteric graphite phase carbon nitride, 0.04 to 0.08 part of desulfurized gypsum, 0.05 to 0.1 part of coal gangue powder, 0.1 to 0.2 part of steel slag powder, 0.001 to 0.005 part of a plastic expanding agent, 0.001 to 0.005 part of a defoaming agent, 0.001 to 0.002 part of a powdery polycarboxylic acid water reducing agent, 0.001 to 0.003 part of a mineral activity exciting agent, 0.001 to 0.005 part of perlite, 0.5 to 0.7 part of ordinary portland cement, 2 to 4 parts of building sand and 0.4 part of water. Except for the water and the building sand, the total amount of the other components is 1 part. The efficient photocatalytic performance of the amphoteric graphite phase carbon nitride under visible light is utilized to effectively degrade the harmful component nitrogen oxide in the air, and a positive effect on environment purification is achieved; the micro-expansion performance generated by the expansion component can reduce mortar shrinkage cracks, the durability and attractiveness of the material are improved, meanwhile, a large amount of industrial solid waste such as desulfurized gypsum, coal gangue and steel slag is used, resource recycling is facilitated, and environmental pollution is reduced.
本发明公开了一种在自然光下可降解氮氧化物的微膨胀水泥砂浆，各组分含量以重量份计为：两性石墨相氮化碳0.01‑0.03份、脱硫石膏0.04‑0.08份、煤矸石粉0.05‑0.1份、钢渣粉0.1‑0.2份、塑性膨胀剂0.001‑0.005份、消泡剂0.001‑0.005份、粉体聚羧酸减水剂0.001‑0.002份、矿物活性激发剂0.001‑0.003份、珍珠岩0.001‑0.005份、普硅水泥0.5‑0.7份、建筑用砂2‑4份及0.4份水拌合而成，上述组分中除水和建筑用砂外，其他组分总量计为1份。本发明利用两性石墨相氮化碳在可见光下的高效光催化性能，有效降解空气中的有害成分氮氧化物，对净化环境起到积极作用；膨胀组分产生的微膨胀性能可降低砂浆收缩裂缝的产生，提高材料的耐久性及美观度，同时大量使用脱硫石膏、煤矸石和钢渣等工业固废，有利于资源循环利用、降低环境污染。
Micro-expansive cement mortar capable of degrading nitrogen oxides under natural light and preparation method of micro-expansive cement mortar
一种在自然光下可降解氮氧化物的微膨胀水泥砂浆及其制备方法
RAO WEILAN (author) / HE KAI (author) / GUO JIANGUANG (author) / HUANG HUANHUAN (author) / LI WEI (author) / ZHANG CHENGYU (author) / PAN HANG (author)
2024-02-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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