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A platform for research: civil engineering, architecture and urbanism
Clinker-free high-performance low-cost novel composite cementing material
The invention provides a clinker-free high-performance low-cost novel composite cementing material. The composite cementing material is composed of the following components in percentage by mass: 10-25% of quick lime, 5-20% of desulfurized ash, 0-11% of a modified material and 50-95% of a composite admixture. The composite admixture is composed of iron tailing powder and superfine slag powder, wherein the iron tailing powder accounts for 20%-45% by mass of the total raw materials of the composite cementing material, and the superfine slag powder accounts for 30%-50% by mass of the total raw materials of the composite cementing material. The invention provides an appropriate mixing ratio, and the gelling activity of iron tailing sand is activated by using low-cost quicklime, low-cost desulfurized ash and a small amount of strong alkali and weak acid salt. The adopted raw materials are cheap industrial raw materials and industrial waste, and high-temperature roasting, grinding and otherprocedures are not needed for preparation, so engineering cost and the construction difficulty are remarkably reduced.
一种无熟料高性能低成本的新型复合胶凝材料，由生石灰、脱硫灰、改性材料和复合掺合料组成，其中各组分的质量百分比为：生石灰10‑25％、脱硫灰5‑20％、改性材料0‑11％、复合掺合料50‑95％。复合掺合料50％～95％。复合掺合料由铁尾矿粉和矿渣微粉组成，铁尾矿粉和矿渣微粉占复合胶凝材料总原料质量百分比为：铁尾矿粉20％～45％、矿渣微粉30％～50％。本发明提供了一种较为合适的配合比，实现了利用成本较低的生石灰、脱硫灰以及少量强碱弱酸盐对铁尾矿砂胶凝活性的激活。本发明采用的原材料均为廉价的工业原料及工业废弃物，不需高温焙烧和研磨等工序制备，显著降低工程造价和施工难度。
Clinker-free high-performance low-cost novel composite cementing material
The invention provides a clinker-free high-performance low-cost novel composite cementing material. The composite cementing material is composed of the following components in percentage by mass: 10-25% of quick lime, 5-20% of desulfurized ash, 0-11% of a modified material and 50-95% of a composite admixture. The composite admixture is composed of iron tailing powder and superfine slag powder, wherein the iron tailing powder accounts for 20%-45% by mass of the total raw materials of the composite cementing material, and the superfine slag powder accounts for 30%-50% by mass of the total raw materials of the composite cementing material. The invention provides an appropriate mixing ratio, and the gelling activity of iron tailing sand is activated by using low-cost quicklime, low-cost desulfurized ash and a small amount of strong alkali and weak acid salt. The adopted raw materials are cheap industrial raw materials and industrial waste, and high-temperature roasting, grinding and otherprocedures are not needed for preparation, so engineering cost and the construction difficulty are remarkably reduced.
一种无熟料高性能低成本的新型复合胶凝材料，由生石灰、脱硫灰、改性材料和复合掺合料组成，其中各组分的质量百分比为：生石灰10‑25％、脱硫灰5‑20％、改性材料0‑11％、复合掺合料50‑95％。复合掺合料50％～95％。复合掺合料由铁尾矿粉和矿渣微粉组成，铁尾矿粉和矿渣微粉占复合胶凝材料总原料质量百分比为：铁尾矿粉20％～45％、矿渣微粉30％～50％。本发明提供了一种较为合适的配合比，实现了利用成本较低的生石灰、脱硫灰以及少量强碱弱酸盐对铁尾矿砂胶凝活性的激活。本发明采用的原材料均为廉价的工业原料及工业废弃物，不需高温焙烧和研磨等工序制备，显著降低工程造价和施工难度。
Clinker-free high-performance low-cost novel composite cementing material
一种无熟料高性能低成本的新型复合胶凝材料
WANG ZONGSEN (author) / YAO CHI (author) / YU FENG (author) / WANG LIANG (author) / BU SHUANGSHUANG (author) / WANG XIANSHUANG (author) / HOU FEI (author)
2020-05-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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