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A platform for research: civil engineering, architecture and urbanism
Alkali-activated fly ash-based pervious concrete and preparation method thereof
The invention discloses alkali-activated fly ash-based pervious concrete and a preparation method thereof, and solves the problems of high resource consumption and high carbon emission caused by using cement and stones as main raw materials in the existing pervious concrete. The invention discloses an alkali-activated ceramsite which comprises the following materials in parts by weight: 40-55 parts of a liquid alkali activator, 100-150 parts of modified fly ash and 450-750 parts of ceramsite. The liquid alkali activator is water glass with the modulus of 0.50 to 1.50 and the density of 1.150 to 1.450 g/ml; the modified fly ash is prepared by mixing the following components in percentage by mass: 70-80% of fly ash, 5-10% of limestone powder and 10-20% of slaked lime powder; the ceramsite is fly ash ceramsite of which the cylinder compressive strength is greater than or equal to 4MPa. The invention provides a method for resource utilization of solid wastes such as fly ash and the like, and the prepared fly ash-based pervious concrete replaces traditional cement and stone pervious concrete, so that the production cost can be reduced, and natural resource consumption and carbon emission can be reduced.
本发明公开了一种碱激发粉煤灰基透水混凝土及其制备方法，解决了现有透水混凝土以水泥、石子为主要原料而资源消耗大、碳排放高的问题。它包括下述材料：按重量份数计，液体碱激发剂40‑55份、改性粉煤灰100‑150份、陶粒450‑750份。所述液体碱激发剂为模数0.50‑1.50，密度为1.150‑1.450g/ml的水玻璃；所述改性粉煤灰为质量分数70‑80%的粉煤灰、5‑10%的石灰石粉、10‑20%的熟石灰粉混合制得；所述陶粒为筒压强度≥4MPa的粉煤灰陶粒。本发明为粉煤灰等固废的资源化利用提供了一种方法，制备的粉煤灰基透水混凝土代替传统水泥石子透水混凝土可降低生产成本并减少天然资源消耗和碳排放。
Alkali-activated fly ash-based pervious concrete and preparation method thereof
The invention discloses alkali-activated fly ash-based pervious concrete and a preparation method thereof, and solves the problems of high resource consumption and high carbon emission caused by using cement and stones as main raw materials in the existing pervious concrete. The invention discloses an alkali-activated ceramsite which comprises the following materials in parts by weight: 40-55 parts of a liquid alkali activator, 100-150 parts of modified fly ash and 450-750 parts of ceramsite. The liquid alkali activator is water glass with the modulus of 0.50 to 1.50 and the density of 1.150 to 1.450 g/ml; the modified fly ash is prepared by mixing the following components in percentage by mass: 70-80% of fly ash, 5-10% of limestone powder and 10-20% of slaked lime powder; the ceramsite is fly ash ceramsite of which the cylinder compressive strength is greater than or equal to 4MPa. The invention provides a method for resource utilization of solid wastes such as fly ash and the like, and the prepared fly ash-based pervious concrete replaces traditional cement and stone pervious concrete, so that the production cost can be reduced, and natural resource consumption and carbon emission can be reduced.
本发明公开了一种碱激发粉煤灰基透水混凝土及其制备方法，解决了现有透水混凝土以水泥、石子为主要原料而资源消耗大、碳排放高的问题。它包括下述材料：按重量份数计，液体碱激发剂40‑55份、改性粉煤灰100‑150份、陶粒450‑750份。所述液体碱激发剂为模数0.50‑1.50，密度为1.150‑1.450g/ml的水玻璃；所述改性粉煤灰为质量分数70‑80%的粉煤灰、5‑10%的石灰石粉、10‑20%的熟石灰粉混合制得；所述陶粒为筒压强度≥4MPa的粉煤灰陶粒。本发明为粉煤灰等固废的资源化利用提供了一种方法，制备的粉煤灰基透水混凝土代替传统水泥石子透水混凝土可降低生产成本并减少天然资源消耗和碳排放。
Alkali-activated fly ash-based pervious concrete and preparation method thereof
一种碱激发粉煤灰基透水混凝土及其制备方法
MIAO RUIPING (author) / SUN JUNMIN (author) / ZHANG CHANG'AN (author) / WANG PEIYI (author) / LI YONGCHAO (author) / YAN CHUNXIA (author) / WU YUE (author) / GAO LEILEI (author) / LI YUNGAI (author) / CHEN YANG (author)
2022-05-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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