A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Reinforced mining solid waste concrete and preparation method thereof
The invention discloses reinforced mining solid waste concrete and a preparation method thereof. An aggregate reinforcing agent, polypropylene fibers and dry ice are added into the concrete. The preparation method comprises the following steps: taking coal gangue as coarse aggregate; taking the gasified slag as fine aggregate; uniformly stirring the coarse aggregate and an aggregate reinforcing agent according to a mass ratio of 10: 1 to form reinforced coal gangue, and uniformly stirring the fine aggregate and fly ash according to a mass ratio of 10: 1 to form reinforced gasification slag; preparing concrete; the preparation method comprises the following steps: uniformly stirring water, P.0 42.5 cement, reinforced coal gangue, reinforced gasification slag and polypropylene fiber according to a mass ratio of 9: 17: 22: 13: 2, adding dry ice particles with a particle size of 0.5-4.75 mm, and rapidly and uniformly stirring, with the mass of the dry ice particles being 4.5% of the sum of the mass of the reinforced coal gangue and the mass of the reinforced gasification slag; and curing the prepared concrete. In the preparation process, CO2 is slowly released by dry ice particles and is used for continuously strengthening the mining solid waste aggregate, so that the performance is improved, and the full utilization of mining solid wastes is ensured.
本发明公开了一种强化矿用固废混凝土及其制备方法，该混凝土中加入了骨料增强剂、聚丙烯纤维、干冰。制备方法为：将煤矸石作为粗骨料；将气化渣作为细骨料；将粗骨料与骨料增强剂按照质量比为10：1的比例搅拌均匀形成强化煤矸石，同时将细骨料与粉煤灰也按照质量比为10：1的比例搅拌均匀形成强化气化渣；配置混凝土；先将水、P.0 42.5水泥、强化煤矸石、强化气化渣、聚丙烯纤维按照9：17：22：13：2的质量比搅拌均匀，再加入粒径为0.50.5‑4.75mm的干冰粒迅速拌匀，干冰粒的质量为强化煤矸石、强化气化渣质量之和的4.5％；对配置好的混凝土进行养护。制备过程中，干冰粒缓释CO2用来持续强化矿用固废骨料，提升了性能，保证矿用固体废弃物的全利用。
Reinforced mining solid waste concrete and preparation method thereof
The invention discloses reinforced mining solid waste concrete and a preparation method thereof. An aggregate reinforcing agent, polypropylene fibers and dry ice are added into the concrete. The preparation method comprises the following steps: taking coal gangue as coarse aggregate; taking the gasified slag as fine aggregate; uniformly stirring the coarse aggregate and an aggregate reinforcing agent according to a mass ratio of 10: 1 to form reinforced coal gangue, and uniformly stirring the fine aggregate and fly ash according to a mass ratio of 10: 1 to form reinforced gasification slag; preparing concrete; the preparation method comprises the following steps: uniformly stirring water, P.0 42.5 cement, reinforced coal gangue, reinforced gasification slag and polypropylene fiber according to a mass ratio of 9: 17: 22: 13: 2, adding dry ice particles with a particle size of 0.5-4.75 mm, and rapidly and uniformly stirring, with the mass of the dry ice particles being 4.5% of the sum of the mass of the reinforced coal gangue and the mass of the reinforced gasification slag; and curing the prepared concrete. In the preparation process, CO2 is slowly released by dry ice particles and is used for continuously strengthening the mining solid waste aggregate, so that the performance is improved, and the full utilization of mining solid wastes is ensured.
本发明公开了一种强化矿用固废混凝土及其制备方法，该混凝土中加入了骨料增强剂、聚丙烯纤维、干冰。制备方法为：将煤矸石作为粗骨料；将气化渣作为细骨料；将粗骨料与骨料增强剂按照质量比为10：1的比例搅拌均匀形成强化煤矸石，同时将细骨料与粉煤灰也按照质量比为10：1的比例搅拌均匀形成强化气化渣；配置混凝土；先将水、P.0 42.5水泥、强化煤矸石、强化气化渣、聚丙烯纤维按照9：17：22：13：2的质量比搅拌均匀，再加入粒径为0.50.5‑4.75mm的干冰粒迅速拌匀，干冰粒的质量为强化煤矸石、强化气化渣质量之和的4.5％；对配置好的混凝土进行养护。制备过程中，干冰粒缓释CO2用来持续强化矿用固废骨料，提升了性能，保证矿用固体废弃物的全利用。
Reinforced mining solid waste concrete and preparation method thereof
一种强化矿用固废混凝土及其制备方法
SUN YUANTIAN (author) / LI GUICHEN (author) / LU ZHONGCHENG (author) / TAO WENJIN (author) / WEI PENG (author) / LI JINGHUA (author) / YANG SEN (author) / WO XIAOFANG (author) / LUO DONGYANG (author)
2022-07-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Graphene oxide reinforced solid waste concrete and preparation method thereof
| European Patent Office | 2021
Reactive powder concrete using bulk coal mining industry solid waste and preparation method thereof
| European Patent Office | 2021
Solid waste ecological concrete and preparation method thereof
| European Patent Office | 2021