煅烧改性电石渣制备超硫酸盐水泥的性能与机理研究

金属矿山 ›› 2026, Vol. 55 ›› Issue (2): 290-297.

煅烧改性电石渣制备超硫酸盐水泥的性能与机理研究

赵玉琪¹　曹　洋¹　吕　蒙¹　刘少迁²　胡振涛¹　陆占国¹　赵昀奇²

1. 鞍钢集团矿业有限公司齐大山分公司,辽宁鞍山 114000;2. 东北大学资源与土木工程学院,辽宁沈阳 110819

出版日期:2026-02-15 发布日期:2026-03-04
通讯作者: 曹　洋(1985—),男,高级工程师。
作者简介:赵玉琪(1999—)女,助理工程师,硕士。
基金资助:
“十四五”国家重点研发计划项目(编号:2023YFC3904303);国家自然科学基金项目(编号:52234004)。

Study on the Performance and Mechanism of Supersulfated Cement Prepared with Calcined Modified Calcium Carbide Slag#br#

ZHAO Yuqi¹　CAO Yang¹　LÜ Meng¹　LIU Shaoqian²　HU Zhentao¹　LU Zhanguo¹　ZHAO Yunqi²

1. Qidashan Branch,Angang Group Mining Co. ,Ltd. ,Anshan 114000,China;
2. School of Resources and Civil Engineering,Northeastern University,Shenyang 110819,China

Online:2026-02-15 Published:2026-03-04

摘要/Abstract

摘要： 为降低超硫酸盐水泥因使用硅酸盐水泥作为碱性激发剂带来的成本与环境负担,本研究利用强碱性固
体废弃物电石渣(主要成分为Ca(OH)2)及其经520 ℃煅烧的改性产物,完全替代硅酸盐水泥制备超硫酸盐水泥。系
统研究了硅酸盐水泥、原始电石渣及改性电石渣三种激发剂对水泥流动性、凝结时间、抗压强度及水化产物的影响。
结果表明:原始电石渣因粒径较粗可使砂浆流动度提高6. 42%,但其低反应活性显著延缓凝结;改性电石渣因比表面
积增大和形成高活性CaO,能有效缩短凝结时间。尽管改性电石渣体系7 d 抗压强度(11. 73 MPa)仍低于硅酸盐水泥
体系(15. 96 MPa),但其28 d 抗压强度可达42. 81 MPa,与后者(43. 58 MPa)相当,满足42. 5 级水泥国家标准要求。
XRD 与FTIR 分析表明,所有体系水化产物均以钙矾石和C-S-H 凝胶为主,电石渣在长龄期更促进钙矾石生成。本
研究证明,改性电石渣可作为有效的碱性激发剂,实现超硫酸盐水泥长期力学性能的等效低碳化制备。

关键词: 电石渣　超硫酸盐水泥　煅烧改性　力学性能　水化特性

Abstract: To reduce the cost and environmental burden of supersulfated cement caused by using Portland cement as an
alkaline activator,this study completely replaces Portland cement with strongly alkaline solid waste calcium carbide residue
(main component Ca(OH)2) and its modified product (calcined at 520 ℃) to prepare super sulfate cement. The effects of
Portland cement,raw calcium carbide residue,and modified calcium carbide residue as activators on cement fluidity,setting
time,compressive strength,and hydration products were systematically studied. The results show that raw calcium carbide residue,
due to its larger particle size,increases mortar fluidity by 6. 42% but significantly delays setting due to low reactivity.
Modified calcium carbide residue,with increased specific surface area and formation of highly active CaO,effectively shortens
setting time. Although the 7-day compressive strength of the modified calcium carbide residue system (11. 73 MPa) is lower
than that of Portland cement (15. 96 MPa),its 28-day compressive strength reaches 42. 81 MPa,equivalent to Portland cement
(43. 58 MPa) and meeting the national standard requirement for 42. 5-grade cement. XRD and FTIR analyses indicate that hydration
products in all systems are primarily ettringite and C-S-H gel,with calcium carbide residue promoting ettringite generation
at later ages. This study proves that modified calcium carbide residue can serve as an effective alkaline activator to achieve
equivalent long-term mechanical performance with low-carbon preparation of super sulfate cement.

Key words: calcium carbide slag,supersulfated cement,calcination modification,mechanical properties,hydration characteristics

中图分类号:

TQ172. 7

赵玉琪　曹　洋　吕　蒙　刘少迁　胡振涛　陆占国　赵昀奇. 煅烧改性电石渣制备超硫酸盐水泥的性能与机理研究[J]. 金属矿山, 2026, 55(2): 290-297.

ZHAO Yuqi　CAO Yang　LÜ Meng　LIU Shaoqian　HU Zhentao　LU Zhanguo　ZHAO Yunqi. Study on the Performance and Mechanism of Supersulfated Cement Prepared with Calcined Modified Calcium Carbide Slag#br#[J]. Metal Mine, 2026, 55(2): 290-297.

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