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A platform for research: civil engineering, architecture and urbanism
Composite photocatalytic pervious concrete and preparation method thereof
The invention relates to composite photocatalytic pervious concrete and a preparation method thereof. A composite photocatalyst loaded on the pervious concrete is formed by compounding an anthranilonitrile copolymerization modified photocatalyst and titanium dioxide according to the mass ratio of 1: 1, and is loaded on the pervious concrete in three modes, namely, surface coating, doping and soaking; the prepared composite photocatalytic pervious concrete is prepared from the following raw materials in percentage by weight: 15-20% of cement, 5-8% of water, 70-75% of coarse aggregate, 0.1-0.3% of water reducing agent, 0.5-3% of composite photocatalyst and 4-6% of fly ash. The composite photocatalytic pervious concrete prepared by the invention not only has good water permeability, but also can perform photocatalytic degradation on organic pollutants under visible light and ultraviolet light, and has double effects of water permeability and pollutant photocatalytic degradation when being applied to a water-permeable concrete pavement, thereby playing an important role in construction of a current sponge city.
本发明涉及一种复合光催化透水混凝土及其制备方法。该透水混凝土所负载的复合光催化剂是由邻氨基苯甲腈共聚合改性光催化剂和二氧化钛按照1:1的质量比复合而成，通过表面涂覆、掺入、浸泡三种方式负载于透水混凝土，所制备的复合光催化透水混凝土按重量百分比的原料组成为：水泥15～20％，水5～8％，粗骨料70～75％，减水剂0.1～0.3％，复合光催化剂0.5～3％，粉煤灰4～6％。本发明制备的复合光催化透水混凝土不仅具有良好的透水性能，而且在可见光与紫外光下均可对有机污染物进行光催化降解，将其用于透水混凝土路面，兼具透水和污染物光催化降解双重功效，这对当前海绵城市的建设具有重要作用。
Composite photocatalytic pervious concrete and preparation method thereof
The invention relates to composite photocatalytic pervious concrete and a preparation method thereof. A composite photocatalyst loaded on the pervious concrete is formed by compounding an anthranilonitrile copolymerization modified photocatalyst and titanium dioxide according to the mass ratio of 1: 1, and is loaded on the pervious concrete in three modes, namely, surface coating, doping and soaking; the prepared composite photocatalytic pervious concrete is prepared from the following raw materials in percentage by weight: 15-20% of cement, 5-8% of water, 70-75% of coarse aggregate, 0.1-0.3% of water reducing agent, 0.5-3% of composite photocatalyst and 4-6% of fly ash. The composite photocatalytic pervious concrete prepared by the invention not only has good water permeability, but also can perform photocatalytic degradation on organic pollutants under visible light and ultraviolet light, and has double effects of water permeability and pollutant photocatalytic degradation when being applied to a water-permeable concrete pavement, thereby playing an important role in construction of a current sponge city.
本发明涉及一种复合光催化透水混凝土及其制备方法。该透水混凝土所负载的复合光催化剂是由邻氨基苯甲腈共聚合改性光催化剂和二氧化钛按照1:1的质量比复合而成，通过表面涂覆、掺入、浸泡三种方式负载于透水混凝土，所制备的复合光催化透水混凝土按重量百分比的原料组成为：水泥15～20％，水5～8％，粗骨料70～75％，减水剂0.1～0.3％，复合光催化剂0.5～3％，粉煤灰4～6％。本发明制备的复合光催化透水混凝土不仅具有良好的透水性能，而且在可见光与紫外光下均可对有机污染物进行光催化降解，将其用于透水混凝土路面，兼具透水和污染物光催化降解双重功效，这对当前海绵城市的建设具有重要作用。
Composite photocatalytic pervious concrete and preparation method thereof
一种复合光催化透水混凝土及其制备方法
PAN YUNXIA (author) / XIA XUE (author)
2021-04-20
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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