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A platform for research: civil engineering, architecture and urbanism
Coal-based solid waste thermal insulation aggregate as well as preparation method and application thereof
The invention belongs to the technical field of aggregate. The invention provides a preparation method of coal-based solid waste thermal insulation aggregate. Mixing coal gangue, fly ash and water, and granulating to obtain raw material balls; and drying the raw material nodules, and sequentially preheating and sintering to obtain the coal-based solid waste thermal insulation aggregate. The coal-based solid waste thermal insulation aggregate comprises coarse aggregate and fine aggregate; when the mass ratio of the coal gangue to the fly ash is 80: (18-22), obtaining coarse aggregate; when the mass ratio of the coal gangue to the fly ash is 85: (13-17), obtaining fine aggregate. On the premise of meeting the strength, the heat conductivity coefficient of the prepared thermal insulation aggregate is remarkably reduced, when the thermal insulation aggregate is used for preparing a concrete wall body, the replacement rate of coarse aggregate can reach 100%, the replacement rate of fine aggregate can reach 30%, the thermal insulation performance of the concrete wall body can be effectively improved, the building energy consumption can be reduced, the process is simple, and large-scale production can be achieved.
本发明属于骨料技术领域。本发明提供了一种煤基固废保温骨料的制备方法。将煤矸石、粉煤灰和水混合后进行造粒，得到生料球；将生料球干燥后顺次进行预热和烧结，得到煤基固废保温骨料；所述煤基固废保温骨料包含粗骨料和细骨料；当煤矸石和粉煤灰的质量比为80:18～22时，得到粗骨料；当煤矸石和粉煤灰的质量比为85:13～17时，得到细骨料。本发明制备的保温骨料在满足强度的前提下，导热系数显著降低，将其用于制备混凝土墙体，粗骨料的替代率可达100％，细骨料的替代率可达30％，不仅能有效提高混凝土墙体的保温隔热性能，降低建筑能耗，而且工艺简单，有利于实现规模化生产。
Coal-based solid waste thermal insulation aggregate as well as preparation method and application thereof
The invention belongs to the technical field of aggregate. The invention provides a preparation method of coal-based solid waste thermal insulation aggregate. Mixing coal gangue, fly ash and water, and granulating to obtain raw material balls; and drying the raw material nodules, and sequentially preheating and sintering to obtain the coal-based solid waste thermal insulation aggregate. The coal-based solid waste thermal insulation aggregate comprises coarse aggregate and fine aggregate; when the mass ratio of the coal gangue to the fly ash is 80: (18-22), obtaining coarse aggregate; when the mass ratio of the coal gangue to the fly ash is 85: (13-17), obtaining fine aggregate. On the premise of meeting the strength, the heat conductivity coefficient of the prepared thermal insulation aggregate is remarkably reduced, when the thermal insulation aggregate is used for preparing a concrete wall body, the replacement rate of coarse aggregate can reach 100%, the replacement rate of fine aggregate can reach 30%, the thermal insulation performance of the concrete wall body can be effectively improved, the building energy consumption can be reduced, the process is simple, and large-scale production can be achieved.
本发明属于骨料技术领域。本发明提供了一种煤基固废保温骨料的制备方法。将煤矸石、粉煤灰和水混合后进行造粒，得到生料球；将生料球干燥后顺次进行预热和烧结，得到煤基固废保温骨料；所述煤基固废保温骨料包含粗骨料和细骨料；当煤矸石和粉煤灰的质量比为80:18～22时，得到粗骨料；当煤矸石和粉煤灰的质量比为85:13～17时，得到细骨料。本发明制备的保温骨料在满足强度的前提下，导热系数显著降低，将其用于制备混凝土墙体，粗骨料的替代率可达100％，细骨料的替代率可达30％，不仅能有效提高混凝土墙体的保温隔热性能，降低建筑能耗，而且工艺简单，有利于实现规模化生产。
Coal-based solid waste thermal insulation aggregate as well as preparation method and application thereof
一种煤基固废保温骨料及其制备方法和应用
WANG XIAOXIAO (author) / YAN CHANGWANG (author) / LIU SHUGUANG (author) / ZHANG JU (author) / JING LEI (author) / DONG YUFEI (author)
2023-04-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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