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A platform for research: civil engineering, architecture and urbanism
Slag sulphoaluminate cement and production method thereof
The invention discloses slag sulphoaluminate cement and a production method thereof. The slag sulphoaluminate cement comprises 4-12% of calcium sulphoaluminate-calcium sulphosilicate cement clinker; 65-85% of granulated blast furnace slag or granulated blast furnace slag powder; the mineral composition of the calcium sulphoaluminate-calcium sulphosilicate cement clinker meets the following conditions: 20-40wt% of anhydrous calcium sulphoaluminate, 30-55wt% of calcium sulphosilicate, 10-15wt% of calcium sulfate, 10-15wt% of calcium sulfate, 10-15wt% of calcium sulfate, 10-15wt% of calcium sulfate, 10-15wt% of calcium sulfate The content of dicalcium silicate is 1-5 wt.%, and the content of aluminoferrite mineral is 1-8 wt.%; the free gypsum accounts for 2-10 wt.%, and the free lime accounts for 1-5 wt.%. According to the invention, the calcium sulphoaluminate-calcium sulphosilicate clinker composed of specific minerals is adopted as one of exciting agent materials, and is matched with the anhydrite, so that the activity of the granulated blast furnace slag can be more effectively excited, and the technical effects that the setting time of the cement is shortened by about 20%, and the fracture resistance and compressive strength in the early stage of 1 and 3 days are improved by about 15% are shown.
本发明公开了一种矿渣硫铝酸盐水泥及其生产方法，包括硫铝酸钙‑硫硅酸钙水泥熟料4～12%；粒化高炉矿渣或粒化高炉矿渣粉65～85%；硬石膏8～25%，所述硫铝酸钙‑硫硅酸钙水泥熟料的矿物组成满足以下条件：无水硫铝酸钙为20～40wt.%，硫硅酸钙为30～55 wt.%；硅酸二钙为1～5 wt.%，铁铝酸盐矿物为1～8wt.%；游离石膏为2～10 wt.%，游离石灰为1～5wt.%。本发明采用特定矿物组成的硫铝酸钙‑硫硅酸钙熟料作为激发剂材料之一，通过与硬石膏配合后，能更加有效地激发粒化高炉矿渣的活性，表现为水泥的凝结时间缩短约20%，1、3天早期抗折、抗压强度提高约15%的技术效果。
Slag sulphoaluminate cement and production method thereof
The invention discloses slag sulphoaluminate cement and a production method thereof. The slag sulphoaluminate cement comprises 4-12% of calcium sulphoaluminate-calcium sulphosilicate cement clinker; 65-85% of granulated blast furnace slag or granulated blast furnace slag powder; the mineral composition of the calcium sulphoaluminate-calcium sulphosilicate cement clinker meets the following conditions: 20-40wt% of anhydrous calcium sulphoaluminate, 30-55wt% of calcium sulphosilicate, 10-15wt% of calcium sulfate, 10-15wt% of calcium sulfate, 10-15wt% of calcium sulfate, 10-15wt% of calcium sulfate, 10-15wt% of calcium sulfate The content of dicalcium silicate is 1-5 wt.%, and the content of aluminoferrite mineral is 1-8 wt.%; the free gypsum accounts for 2-10 wt.%, and the free lime accounts for 1-5 wt.%. According to the invention, the calcium sulphoaluminate-calcium sulphosilicate clinker composed of specific minerals is adopted as one of exciting agent materials, and is matched with the anhydrite, so that the activity of the granulated blast furnace slag can be more effectively excited, and the technical effects that the setting time of the cement is shortened by about 20%, and the fracture resistance and compressive strength in the early stage of 1 and 3 days are improved by about 15% are shown.
本发明公开了一种矿渣硫铝酸盐水泥及其生产方法，包括硫铝酸钙‑硫硅酸钙水泥熟料4～12%；粒化高炉矿渣或粒化高炉矿渣粉65～85%；硬石膏8～25%，所述硫铝酸钙‑硫硅酸钙水泥熟料的矿物组成满足以下条件：无水硫铝酸钙为20～40wt.%，硫硅酸钙为30～55 wt.%；硅酸二钙为1～5 wt.%，铁铝酸盐矿物为1～8wt.%；游离石膏为2～10 wt.%，游离石灰为1～5wt.%。本发明采用特定矿物组成的硫铝酸钙‑硫硅酸钙熟料作为激发剂材料之一，通过与硬石膏配合后，能更加有效地激发粒化高炉矿渣的活性，表现为水泥的凝结时间缩短约20%，1、3天早期抗折、抗压强度提高约15%的技术效果。
Slag sulphoaluminate cement and production method thereof
一种矿渣硫铝酸盐水泥及其生产方法
YU QINGHUA (author) / LI WENJIN (author) / ZHOU YANHONG (author) / YANG HUAN (author) / ZHANG LINGZHI (author)
2024-02-20
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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