低碱高硅率核电工程用硅酸盐水泥研发及生产实践

doi:10.19698/j.cnki.1001-6171.20263068

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摘要为满足核电工程用硅酸盐水泥市场需求，解决矿山高硅低钙石灰石难以生产优质熟料的难题，本文采用优化原燃料、四组分生料配料及精细化煅烧控制等技术措施，制备出碱含量＜0.40%、硅酸率约3.50的低碱高硅率核电水泥熟料。以此生产的P·N42.5水泥具备“三低一高”（低碱、低水化热、低干缩、高早强）特性，不仅满足国标要求，也为低品位石灰石的高值化利用提供了新路径。

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	曹勤
	刘帅明
	曾江波
	朱璟
	肖凤林

关键词: 低碱高硅率生料配料核电水泥高值化利用

Abstract: To meet the market demand for Portland cement in nuclear power projects and address the challenge of producing high-quality clinker from high-silica, low-calcium limestone, this study employed optimized raw materials and fuels, four-component raw meal blending, and refined calcination control techniques to produce nuclear-grade cement clinker with a silica ratio of approximately 3.50 and an alkali content below 0.40%. The resulting P·N42.5 cement exhibits the "three lows and one high" characteristics (low alkali, low heat of hydration, low dry shrinkage, and high early strength), not only meeting national standards but also providing a new pathway for the high-value utilization of low-grade limestone.

Key words: low alkali high silica ratio raw material blending nuclear-grade cement high-value utilization

收稿日期: 2025-09-07 出版日期: 2026-05-25 发布日期: 2026-05-19 整期出版日期: 2026-05-25

ZTFLH:

TQ172.7

作者简介: 曹勤（1969—），男，本科，教授级高级工程师，主要从事水泥生产工艺技术研究和企业管理等工作。E-mail：caoqin88@126.com

引用本文:

曹勤, 刘帅明, 曾江波, 朱璟, 肖凤林. 低碱高硅率核电工程用硅酸盐水泥研发及生产实践[J]. 水泥技术, 2026, 1(3): 68-71.
CAO Qin, LIU Shuaiming, ZENG Jiangbo, ZHU Jing, XIAO Fenglin. Research and Production Practice of Low Alkali and High Silica Ratio Portland Cement for Nuclear Power Engineering. Cement Technology, 2026, 1(3): 68-71.

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http://www.cemteck.com/CN/10.19698/j.cnki.1001-6171.20263068 或 http://www.cemteck.com/CN/Y2026/V1/I3/68

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