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A platform for research: civil engineering, architecture and urbanism
Weather-resistant high-strength aerated concrete and preparation method thereof
The invention provides weather-resistant high-strength aerated concrete and a preparation method thereof, and the weather-resistant high-strength aerated concrete is prepared from the following components in parts by weight: 12.5 to 20 parts of cement, 10 to 16 parts of lime, 33 to 60 parts of quartz sand tailings, 5 to 27 parts of waste aerated concrete, 4 parts of desulfurized gypsum, 0.004 part of sodium dodecyl benzene sulfonate, 0.008 part of aluminum powder paste, 0.1 to 0.2 part of polyacrylonitrile fiber, 0.5 to 1 part of bentonite and 0.5 to 1 part of silica fume. 4-5 parts of limestone powder and 2-3 parts of wollastonite; wherein the mass ratio of the cement to the lime is (5-4): 4. Through optimal design of the formula, a large amount of solid waste such as the quartz sand tailings, the desulfurized gypsum and the waste aerated concrete is consumed, a low-temperature ultra-short-time efficient energy-saving low-carbon curing process is adopted, the curing system is that the steam curing time is 4 h at the temperature of 160-180 DEG C, the highest energy-saving rate reaches 52.52%, the compressive strength can reach 9.25 MPa and is 164.3% higher than the A3.5 standard of B06-level aerated blocks, and the energy-saving effect is good. The cost is reduced by 16.83% at most, and the carbon emission is reduced by 32.66% at most.
本发明提供了一种耐候高强加气混凝土及其制备方法，该耐候高强加气混凝土包括按重量份数计的如下组分：水泥12.5～20份，石灰10～16份，石英砂尾矿33～60份，废加气混凝土5～27份，脱硫石膏4份，十二烷基苯磺酸钠0.004份，铝粉膏0.008份，聚丙烯腈纤维0.1～0.2份，膨润土0.5～1份，硅灰0.5～1份，石灰石粉4～5份，硅灰石2～3份；其中，水泥与石灰的质量比为5～4:4。该发明通过配方的优化设计，不仅消耗石英砂尾矿、脱硫石膏和废加气混凝土等大量固废，还采用低温超短时长的高效节能低碳养护工艺，养护制度为160‑180℃蒸养时间为4h，节能率最高达到52.52％，抗压强度可达到9.25MPa，高出B06级加气块的A3.5标准164.3％，成本最高降低16.83％，碳排放量最高降低32.66％。
Weather-resistant high-strength aerated concrete and preparation method thereof
The invention provides weather-resistant high-strength aerated concrete and a preparation method thereof, and the weather-resistant high-strength aerated concrete is prepared from the following components in parts by weight: 12.5 to 20 parts of cement, 10 to 16 parts of lime, 33 to 60 parts of quartz sand tailings, 5 to 27 parts of waste aerated concrete, 4 parts of desulfurized gypsum, 0.004 part of sodium dodecyl benzene sulfonate, 0.008 part of aluminum powder paste, 0.1 to 0.2 part of polyacrylonitrile fiber, 0.5 to 1 part of bentonite and 0.5 to 1 part of silica fume. 4-5 parts of limestone powder and 2-3 parts of wollastonite; wherein the mass ratio of the cement to the lime is (5-4): 4. Through optimal design of the formula, a large amount of solid waste such as the quartz sand tailings, the desulfurized gypsum and the waste aerated concrete is consumed, a low-temperature ultra-short-time efficient energy-saving low-carbon curing process is adopted, the curing system is that the steam curing time is 4 h at the temperature of 160-180 DEG C, the highest energy-saving rate reaches 52.52%, the compressive strength can reach 9.25 MPa and is 164.3% higher than the A3.5 standard of B06-level aerated blocks, and the energy-saving effect is good. The cost is reduced by 16.83% at most, and the carbon emission is reduced by 32.66% at most.
本发明提供了一种耐候高强加气混凝土及其制备方法，该耐候高强加气混凝土包括按重量份数计的如下组分：水泥12.5～20份，石灰10～16份，石英砂尾矿33～60份，废加气混凝土5～27份，脱硫石膏4份，十二烷基苯磺酸钠0.004份，铝粉膏0.008份，聚丙烯腈纤维0.1～0.2份，膨润土0.5～1份，硅灰0.5～1份，石灰石粉4～5份，硅灰石2～3份；其中，水泥与石灰的质量比为5～4:4。该发明通过配方的优化设计，不仅消耗石英砂尾矿、脱硫石膏和废加气混凝土等大量固废，还采用低温超短时长的高效节能低碳养护工艺，养护制度为160‑180℃蒸养时间为4h，节能率最高达到52.52％，抗压强度可达到9.25MPa，高出B06级加气块的A3.5标准164.3％，成本最高降低16.83％，碳排放量最高降低32.66％。
Weather-resistant high-strength aerated concrete and preparation method thereof
一种耐候高强加气混凝土及其制备方法
LI YANG (author) / WANG LINA (author) / ZHANG SIHUI (author) / WU WEIPING (author) / TIAN YU (author) / LIU XIAOQIN (author) / LU SHENGQIANG (author)
2023-08-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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