Materials Science and Civil Engineering
亚硝酸钙促凝剂
Calcium Nitrite AcceleratorCalcium nitrite (CN) is an additive used to accelerate the hydration of cementitious systems, particularly ferroaluminate cement-based grouting materials. It promotes the dissolution of C4A3S¯ and the generation of AFt (ettringite), optimizing pore structure and enhancing compressive strength. / 亚硝酸钙（CN）是一种用于加速水泥基体系（特别是铁铝酸盐水泥灌浆材料）水化的添加剂。它促进C4A3S¯的溶解和AFt（钙矾石）的生成，优化孔隙结构并提高抗压强度。
- Knowledge type
- 工艺技术
- First proposed or discovered
- Proposer
- Turkey Farm member
- Creator
- 农场主
- Last updated
- 2026-11-15 23:05:59
Sub-knowledge points
Accelerator effectHydration characteristicsPore structure optimizationCrystal morphology alteration of AFt
Higher-order knowledge points
Ferroaluminate cement-based grouting materialsBorax retarder
Main parameters and performance indicators
Dosage: 0.3% to 1.2% (by mass)Effect: Retards initial hydration at low contents, promotes hydration at higher contentsMicroscopic effect: Promotes dissolution of C4A3S¯ and generation of AFt
Open problems
No unresolved problem recorded yet
Related literature
ranked by community starsInfluence of Calcium Nitrite on Physical Properties and Hydration Characteristics of Ferroaluminate Cement–Based Grouting MaterialsOpen source
Related products and links
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Creation and modification trail
1 recordsRecord title: Calcium Nitrite Accelerator.
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