A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to limestone powder high-strength concrete and a preparation method thereof, and relates to the technical field of building materials. The concrete is prepared from the following raw materials in parts by weight: 400-500 parts of ordinary Portland cement, 460-520 parts of fine aggregate, 1000-1300 parts of coarse aggregate, 50-70 parts of superfine limestone powder, 150-190 parts of water, 4-8 parts of a water reducing agent and 30-50 parts of modified silica fume, and the modified silica fume is prepared from raw materials including a water repellent agent, a dispersing agent, triethylene tetramine, silica fume and water through the processes of heating, cooling, drying and the like. The method has the effect of improving the anti-freezing performance of the concrete.
本申请涉及一种石灰石粉高强混凝土及其制备方法，涉及建筑材料技术领域。由包括如下重量份的原料制成：普通硅酸盐水泥400‑500份、细骨料460‑520份、粗骨料1000‑1300份、超细石灰石粉50‑70份、水150‑190份，减水剂4‑8份和改性硅灰30‑50份，所述改性硅灰由包括疏水剂、分散剂、三乙烯四胺、硅灰和水的原料经过加热、冷却、干燥等工艺制备得到。本申请具有提升混凝土抗冻性能的效果。
The invention relates to limestone powder high-strength concrete and a preparation method thereof, and relates to the technical field of building materials. The concrete is prepared from the following raw materials in parts by weight: 400-500 parts of ordinary Portland cement, 460-520 parts of fine aggregate, 1000-1300 parts of coarse aggregate, 50-70 parts of superfine limestone powder, 150-190 parts of water, 4-8 parts of a water reducing agent and 30-50 parts of modified silica fume, and the modified silica fume is prepared from raw materials including a water repellent agent, a dispersing agent, triethylene tetramine, silica fume and water through the processes of heating, cooling, drying and the like. The method has the effect of improving the anti-freezing performance of the concrete.
本申请涉及一种石灰石粉高强混凝土及其制备方法，涉及建筑材料技术领域。由包括如下重量份的原料制成：普通硅酸盐水泥400‑500份、细骨料460‑520份、粗骨料1000‑1300份、超细石灰石粉50‑70份、水150‑190份，减水剂4‑8份和改性硅灰30‑50份，所述改性硅灰由包括疏水剂、分散剂、三乙烯四胺、硅灰和水的原料经过加热、冷却、干燥等工艺制备得到。本申请具有提升混凝土抗冻性能的效果。
Limestone superfine powder cement concrete and preparation method thereof
| European Patent Office | 2023
| European Patent Office | 2015
Effects of Ultra-Fine Limestone Powder on Workability and Strength of High Strength Concrete
| Trans Tech Publications | 2010
Machine-made sand fair-faced concrete using limestone powder and preparation method thereof
| European Patent Office | 2021