A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Early-strength cement grinding aid and preparation method thereof
The invention provides an early-strength cement grinding aid. The early-strength cement grinding aid is prepared from the following components in parts by weight: 16-28 parts of silicon dioxide microparticles, 8-14 parts of aluminum oxide microparticles, 14-32 parts of calcium carbonate microparticles, 0.2-0.5 part of a particle structure control agent, 0.5-2 parts of a thickening agent, 1-10 parts of maltodextrin, 1-4 parts of sodium dihydrogen phosphate, 2-6 parts of disodium hydrogen phosphate, 20-50 parts of alcohol organic matters and 70-100 parts of water. Compared with the prior art, by arranging the particle structure control agent, formation of tiny and dispersed calcium silicate hydrate crystal nucleuses and calcium aluminosilicate hydrate crystal nucleuses can be controlled, formation of cement calcium silicate hydrate and calcium aluminosilicate hydrate crystals is promoted, and the effect of greatly improving the early strength of cement is achieved; in addition, the invention also provides a preparation method of the early-strength cement grinding aid.
本发明提供一种早强型水泥助磨剂，按以下重量份计：二氧化硅微粒子16‑28份、氧化铝微粒子8‑14份、碳酸钙微粒子14‑32份、粒子结构控制剂0.2‑0.5份、增稠剂0.5‑2份、麦芽糊精1‑10份、磷酸二氢钠1‑4份、磷酸氢二钠2‑6份、醇类有机物20‑50份、水70‑100份。本发明申请与现有技术相比，设置粒子结构控制剂，本发明能控制形成微小而分散的水化硅酸钙晶核和水化硅铝酸钙晶核，促进水泥水化硅酸钙和水化硅铝酸钙结晶的形成，起到大幅提高水泥早期强度的作用；此外本发明还提供一种早强型水泥助磨剂的制备方法。
Early-strength cement grinding aid and preparation method thereof
The invention provides an early-strength cement grinding aid. The early-strength cement grinding aid is prepared from the following components in parts by weight: 16-28 parts of silicon dioxide microparticles, 8-14 parts of aluminum oxide microparticles, 14-32 parts of calcium carbonate microparticles, 0.2-0.5 part of a particle structure control agent, 0.5-2 parts of a thickening agent, 1-10 parts of maltodextrin, 1-4 parts of sodium dihydrogen phosphate, 2-6 parts of disodium hydrogen phosphate, 20-50 parts of alcohol organic matters and 70-100 parts of water. Compared with the prior art, by arranging the particle structure control agent, formation of tiny and dispersed calcium silicate hydrate crystal nucleuses and calcium aluminosilicate hydrate crystal nucleuses can be controlled, formation of cement calcium silicate hydrate and calcium aluminosilicate hydrate crystals is promoted, and the effect of greatly improving the early strength of cement is achieved; in addition, the invention also provides a preparation method of the early-strength cement grinding aid.
本发明提供一种早强型水泥助磨剂，按以下重量份计：二氧化硅微粒子16‑28份、氧化铝微粒子8‑14份、碳酸钙微粒子14‑32份、粒子结构控制剂0.2‑0.5份、增稠剂0.5‑2份、麦芽糊精1‑10份、磷酸二氢钠1‑4份、磷酸氢二钠2‑6份、醇类有机物20‑50份、水70‑100份。本发明申请与现有技术相比，设置粒子结构控制剂，本发明能控制形成微小而分散的水化硅酸钙晶核和水化硅铝酸钙晶核，促进水泥水化硅酸钙和水化硅铝酸钙结晶的形成，起到大幅提高水泥早期强度的作用；此外本发明还提供一种早强型水泥助磨剂的制备方法。
Early-strength cement grinding aid and preparation method thereof
一种早强型水泥助磨剂及其制备方法
CAI HONG (author) / LIU QINGHE (author) / HAN YING (author)
2023-12-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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