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A platform for research: civil engineering, architecture and urbanism
Coal gangue-ardealite composite cementing material as well as preparation method and application thereof
The invention belongs to the technical field of cementing materials. The invention provides a coal gangue-ardealite composite cementing material which comprises raw materials and additives, and the raw materials comprise ardealite, coal gangue, cement and quick lime; the mass ratio of the ardealite to the coal gangue to the cement to the quick lime is (30-70): (20-36): (8-12): (4-20); the mass ratio of the raw materials to the additive is 100: (4-7); the ardealite comprises undisturbed ardealite and semi-hydrated ardealite; the additive comprises a water reducing agent and water glass. The invention further provides a preparation method and application of the coal gangue-ardealite composite cementing material. The mechanical property and the water resistance of the composite cementing material are regulated and controlled by controlling the proportion of the undisturbed phosphogypsum to the semi-hydrated phosphogypsum and the proportion of the quick lime to the coal gangue, and the composite cementing material has the characteristics of simple process, low cost, high comprehensive utilization rate of a large amount of solid waste phosphogypsum and the coal gangue, good comprehensive performance and the like.
本发明属于胶凝材料技术领域。本发明提供了一种煤矸石‑磷石膏系复合胶凝材料，包含原料和外加剂，原料包含磷石膏、煤矸石、水泥和生石灰；磷石膏、煤矸石、水泥和生石灰的质量比为30～70：20～36：8～12：4～20；原料和外加剂的质量比为100：4～7；磷石膏包含原状磷石膏和半水磷石膏；外加剂包含减水剂和水玻璃。本发明还提供了一种煤矸石‑磷石膏系复合胶凝材料的制备方法和应用。本发明通过控制原状磷石膏与半水磷石膏的比例以及生石灰与煤矸石的比例对复合胶凝材料的力学性能与耐水性能进行调控，具有工艺简单、成本低、大宗固废磷石膏与煤矸石综合利用率高、综合性能良好等特点。
Coal gangue-ardealite composite cementing material as well as preparation method and application thereof
The invention belongs to the technical field of cementing materials. The invention provides a coal gangue-ardealite composite cementing material which comprises raw materials and additives, and the raw materials comprise ardealite, coal gangue, cement and quick lime; the mass ratio of the ardealite to the coal gangue to the cement to the quick lime is (30-70): (20-36): (8-12): (4-20); the mass ratio of the raw materials to the additive is 100: (4-7); the ardealite comprises undisturbed ardealite and semi-hydrated ardealite; the additive comprises a water reducing agent and water glass. The invention further provides a preparation method and application of the coal gangue-ardealite composite cementing material. The mechanical property and the water resistance of the composite cementing material are regulated and controlled by controlling the proportion of the undisturbed phosphogypsum to the semi-hydrated phosphogypsum and the proportion of the quick lime to the coal gangue, and the composite cementing material has the characteristics of simple process, low cost, high comprehensive utilization rate of a large amount of solid waste phosphogypsum and the coal gangue, good comprehensive performance and the like.
本发明属于胶凝材料技术领域。本发明提供了一种煤矸石‑磷石膏系复合胶凝材料，包含原料和外加剂，原料包含磷石膏、煤矸石、水泥和生石灰；磷石膏、煤矸石、水泥和生石灰的质量比为30～70：20～36：8～12：4～20；原料和外加剂的质量比为100：4～7；磷石膏包含原状磷石膏和半水磷石膏；外加剂包含减水剂和水玻璃。本发明还提供了一种煤矸石‑磷石膏系复合胶凝材料的制备方法和应用。本发明通过控制原状磷石膏与半水磷石膏的比例以及生石灰与煤矸石的比例对复合胶凝材料的力学性能与耐水性能进行调控，具有工艺简单、成本低、大宗固废磷石膏与煤矸石综合利用率高、综合性能良好等特点。
Coal gangue-ardealite composite cementing material as well as preparation method and application thereof
一种煤矸石-磷石膏系复合胶凝材料及其制备方法和应用
KONG DEWEN (author) / REN CHUANDONG (author) / CHOI KYOUNG-IN (author) / WANG LINGLING (author) / YANG RUIFA (author) / ZHOU SHENGHUI (author)
2023-06-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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