A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation method of composite cement with low thermal expansion coefficient
The invention discloses a preparation method of composite cement with a low thermal expansion coefficient, and belongs to the technical field of building material preparation. The composite cement with the low thermal expansion coefficient is prepared from the following raw materials in parts by weight: 20-80 parts of cement, 10-50 parts of slag, 10-50 parts of cordierite, 5-30 parts of metakaolin, 2-20 parts of fly ash, 2-10 parts of silica fume, 5-45 parts of modified powder and 5-23 parts of silicon dioxide. Compared with ordinary Portland cement, the prepared composite cement has the advantages that the neat paste thermal expansion coefficient can be reduced by 3*10<-6>/DEG C to 7*10<-6 >/DEG C, the strength is not lower than that of the ordinary Portland cement, and the composite cement has a very high application prospect in the field of heat-cracking-resistant cement-based materials.
本发明公开了一种低热膨胀系数复合水泥的制备方法，属于建筑材料制备技术领域。本发明一种低热膨胀系数复合水泥是由以下重量份的原材料制备而成：水泥20‑80份、矿渣10‑50份、堇青石10‑50份、偏高岭土5‑30份、粉煤灰2‑20份、硅灰2‑10份、改性粉料5‑45份、二氧化硅5‑23份。本发明制备的复合水泥，其净浆热膨胀系数较普通硅酸盐水泥可以降低3×10‑6/℃～7×10‑6/℃，且强度不低于普通硅酸盐水泥，在抗热开裂水泥基材料领域具有很高的应用前景。
Preparation method of composite cement with low thermal expansion coefficient
The invention discloses a preparation method of composite cement with a low thermal expansion coefficient, and belongs to the technical field of building material preparation. The composite cement with the low thermal expansion coefficient is prepared from the following raw materials in parts by weight: 20-80 parts of cement, 10-50 parts of slag, 10-50 parts of cordierite, 5-30 parts of metakaolin, 2-20 parts of fly ash, 2-10 parts of silica fume, 5-45 parts of modified powder and 5-23 parts of silicon dioxide. Compared with ordinary Portland cement, the prepared composite cement has the advantages that the neat paste thermal expansion coefficient can be reduced by 3*10<-6>/DEG C to 7*10<-6 >/DEG C, the strength is not lower than that of the ordinary Portland cement, and the composite cement has a very high application prospect in the field of heat-cracking-resistant cement-based materials.
本发明公开了一种低热膨胀系数复合水泥的制备方法，属于建筑材料制备技术领域。本发明一种低热膨胀系数复合水泥是由以下重量份的原材料制备而成：水泥20‑80份、矿渣10‑50份、堇青石10‑50份、偏高岭土5‑30份、粉煤灰2‑20份、硅灰2‑10份、改性粉料5‑45份、二氧化硅5‑23份。本发明制备的复合水泥，其净浆热膨胀系数较普通硅酸盐水泥可以降低3×10‑6/℃～7×10‑6/℃，且强度不低于普通硅酸盐水泥，在抗热开裂水泥基材料领域具有很高的应用前景。
Preparation method of composite cement with low thermal expansion coefficient
一种低热膨胀系数复合水泥的制备方法
ZHANG BIN (author) / WANG HUAQUAN (author) / HUANG HAIZHI (author) / LYU ANCHEN (author) / LIN YONGQUAN (author) / LIN HAO (author)
2021-05-25
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Composite material with adjustable thermal expansion coefficient and preparation method thereof
| European Patent Office | 2022
Composite ceramic material with low thermal expansion coefficient and preparation method thereof
| European Patent Office | 2023
| European Patent Office | 2022
Effect of porosity on thermal expansion coefficient of cement pastes and mortars
| Online Contents | 2012
Effect of porosity on thermal expansion coefficient of cement pastes and mortars
| British Library Online Contents | 2012