Composite Portland cement and preparation method and application thereof: Fid-Bau Portal

Composite Portland cement and preparation method and application thereof

REN FENGYUAN / ZHU XUEJUN / ZHANG SHILONG / LIU YUJIE / ZHOU YAHUI

The invention provides composite Portland cement as well as a preparation method and application thereof, and relates to the technical field of Portland cement production. The composite Portland cement is prepared from the following raw materials in parts by weight: 63 to 75 parts of Portland cement clinker, 10 to 15 parts of periclase, 8 to 13 parts of fly ash, 4 to 8 parts of desulfurized gypsum, 3 to 8 parts of calcium nitrate, 3 to 8 parts of steel fiber, 3 to 5 parts of superfine zeolite powder, 2 to 5 parts of limestone and 1 to 5 parts of mineral powder. The preparation method comprises the following steps: respectively ball-milling the raw materials for later use; and mixing the ball-milled raw materials, and uniformly stirring. The Portland cement clinker, periclase, fly ash, desulfurized gypsum, calcium nitrate, steel fiber, ultrafine zeolite powder, limestone and mineral powder are taken as raw materials, the raw materials are simply mixed to obtain the composite Portland cement, and the Portland cement has the advantages of low hydration heat, high hydration rate, high breaking strength and good anti-erosion effect.

本申请提出了一种复合硅酸盐水泥及其制备方法和应用，涉及硅酸盐水泥生产技术领域。一种复合硅酸盐水泥，包括以下重量份原料：硅酸盐水泥熟料63‑75份、方镁石10‑15份、粉煤灰8‑13份、脱硫石膏4‑8份、硝酸钙3‑8份、钢纤维3‑8份、超细沸石粉3‑5份、石灰石2‑5份、矿粉1‑5份。制备方法为将各原料分别进行球磨备用；球磨后的原料混合，搅拌均匀后即可。本申请以硅酸盐水泥熟料、方镁石、粉煤灰、脱硫石膏、硝酸钙、钢纤维、超细沸石粉、石灰石和矿粉为原料，经过简单混合即可得到复合硅酸盐水泥，该硅酸盐水泥具有水化发热低、水化速率快、抗折强度高以及抗侵蚀效果好的优点。

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