低压养护下低热水泥混凝土的性能研究_《混凝土与水泥制品》杂志社

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发布时间：2020-01-06 00:00:00

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低压养护下低热水泥混凝土的性能研究

Study on the performance of low heat Portland cement concrete under low pressure curing condition

2024年第1期

低热水泥；低压养护；孔结构；力学性能；耐久性能

Low heat Portland cement; Low pressure curing; Pore structure; Mechanical performance; Durability

2024年第1期

10.19761/j.1000-4637.2024.01.035.05

四川省重大科技专项项目（2019ZDZX0024）；中国建材集团攻关专项资助项目（2021HX0708）。

王宁1，2，3，阳黎2，3，夏艳晴1，2，3，李军1，卢忠远1，*，许毅刚2，3，钟文2，3，种娜2，3

1.西南科技大学，四川绵阳 621010；2.嘉华特种水泥股份有限公司，四川乐山 614003；3.中国建材集团有限公司，北京 100036

王宁1，2，3，阳黎2，3，夏艳晴1，2，3，李军1，卢忠远1，*，许毅刚2，3，钟文2，3，种娜2，3

王宁,阳黎,夏艳晴,等.低压养护下低热水泥混凝土的性能研究[J].混凝土与水泥制品,2024(1):35-39.

WANG Ning, YANG Li, XIA Yanqing,et al.Study on the performance of low heat Portland cement concrete under low pressure curing condition[J].China Concrete and Cement Products,2024(1):35-39.

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摘要：研究了不同养护（低压养护、标准养护）条件下掺不同品种水泥（普通硅酸盐水泥OPC、低热水泥LHPC）混凝土的性能，分析了LHPC混凝土的孔结构对其性能的影响。结果表明：相同养护条件下，LHPC混凝土的后期抗压强度高于OPC混凝土；低压养护条件下，LHPC的放热量远低于OPC，LHPC可以持续进行水化，对低压环境的适应性更好，LHPC混凝土的孔结构更加致密，LHPC混凝土的耐久性能更好；混凝土的耐久性能与孔结构呈线性关系，且耐久性能随着孔结构的劣化而降低。 Abstract: The properties of different kinds of cement (ordinary Portland cement OPC, low heat Portland cement LHPC) concrete under different curing conditions(low pressure curing, standard curing) were studied, and the effect of pore structure on the properties of LHPC concrete was analyzed. The results show that under the same curing conditions, the later compressive strength of LHPC concrete is higher than that of OPC concrete. Under low pressure curing condition, the heat release of LHPC is much lower than that of OPC. LHPC can continue to hydrate and has better adaptability to low pressure environments. The pore structure of LHPC concrete is denser, and the durability of LHPC concrete is better. The durability of concrete exhibits a linear relationship with the pore structure, and the durability decreases with the deterioration of the pore structure.

英文名 : Study on the performance of low heat Portland cement concrete under low pressure curing condition

刊期 : 2024年第1期

关键词 : 低热水泥；低压养护；孔结构；力学性能；耐久性能

Key words : Low heat Portland cement; Low pressure curing; Pore structure; Mechanical performance; Durability

刊期 : 2024年第1期

DOI : 10.19761/j.1000-4637.2024.01.035.05

文章编号 :

基金项目 : 四川省重大科技专项项目（2019ZDZX0024）；中国建材集团攻关专项资助项目（2021HX0708）。

作者 : 王宁1，2，3，阳黎2，3，夏艳晴1，2，3，李军1，卢忠远1，*，许毅刚2，3，钟文2，3，种娜2，3

单位 : 1.西南科技大学，四川绵阳 621010；2.嘉华特种水泥股份有限公司，四川乐山 614003；3.中国建材集团有限公司，北京 100036

王宁1，2，3，阳黎2，3，夏艳晴1，2，3，李军1，卢忠远1，*，许毅刚2，3，钟文2，3，种娜2，3

王宁,阳黎,夏艳晴,等.低压养护下低热水泥混凝土的性能研究[J].混凝土与水泥制品,2024(1):35-39.

WANG Ning, YANG Li, XIA Yanqing,et al.Study on the performance of low heat Portland cement concrete under low pressure curing condition[J].China Concrete and Cement Products,2024(1):35-39.

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摘要

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结论

参考文献

引用本文

Abstract: The properties of different kinds of cement (ordinary Portland cement OPC, low heat Portland cement LHPC) concrete under different curing conditions(low pressure curing, standard curing) were studied, and the effect of pore structure on the properties of LHPC concrete was analyzed. The results show that under the same curing conditions, the later compressive strength of LHPC concrete is higher than that of OPC concrete. Under low pressure curing condition, the heat release of LHPC is much lower than that of OPC. LHPC can continue to hydrate and has better adaptability to low pressure environments. The pore structure of LHPC concrete is denser, and the durability of LHPC concrete is better. The durability of concrete exhibits a linear relationship with the pore structure, and the durability decreases with the deterioration of the pore structure.

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