水灰比对泡沫混凝土抗压强度和导热系数的影响

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发布时间：2020-01-06 00:00:00

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水灰比对泡沫混凝土抗压强度和导热系数的影响

Effect of Water-cement Ratio on the Compressive Strength and Thermal Conductivity of Foamed Concrete

2022年第11期

泡沫混凝土；水灰比；强度；导热系数；孔隙率；相关性分析

Foamed concrete; Water-cement ratio; Strength; Thermal conductivity; Porosity; Correlation analysis

2022年第11期

10.19761/j.1000-4637.2022.11.068.05

河南省重点研发与推广专项（科技攻关）项目（222102320112）。

曹星星a，党钧陶a，b，李风兰a，b

华北水利水电大学 a.土木与交通学院；b.河南省生态建材工程国际联合实验室，河南郑州 450045

曹星星a，党钧陶a，b，李风兰a，b

曹星星,党钧陶,李风兰.水灰比对泡沫混凝土抗压强度和导热系数的影响[J].混凝土与水泥制品,2022(11):68-71,75.

CAO X X,DANG J T,LI F L,et al.Effect of Water-cement Ratio on the Compressive Strength and Thermal Conductivity of Foamed Concrete[J].China Concrete and Cement Products,2022(11):68-71,75.

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摘要：研究了水灰比对密度等级为300级和500级泡沫混凝土抗压强度、导热系数和孔隙率的影响。结果表明：泡沫混凝土的密度等级不同，水灰比对其性能的影响存在差异；在水灰比为0.25时，300密度等级泡沫混凝土的抗压强度达到最大，为1.13 MPa，保温性能相对较优；随着水灰比的增加，500密度等级泡沫混凝土的导热系数不断增大，抗压强度和孔隙率不断减小，在水灰比为0.35时，其强度和保温性能达到最优；泡沫混凝土的孔隙率与抗压强度、导热系数之间存在良好的相关性。 Abstract: The effects of water-cement ratio on the compressive strength, thermal conductivity and porosity of foamed concrete with density grades of 300 and 500 were studied. The results show that the influence of water-cement ratio on the properties of foamed concrete is different due to the different density grades. When the water-cement ratio is 0.25, the compressive strength of foamed concrete with density grade of 300 reaches the maximum, which is 1.13 MPa, and the thermal insulation performance is relatively good. With the increase of water-cement ratio, the thermal conductivity of foamed concrete with density grade of 500 increases continuously, and the compressive strength and porosity decrease continuously, and when the water-cement ratio is 0.35, its strength and thermal insulation performance reach the optimum. There is a good correlation between the porosity of foamed concrete and the compressive strength and thermal conductivity.

英文名 : Effect of Water-cement Ratio on the Compressive Strength and Thermal Conductivity of Foamed Concrete

刊期 : 2022年第11期

关键词 : 泡沫混凝土；水灰比；强度；导热系数；孔隙率；相关性分析

Key words : Foamed concrete; Water-cement ratio; Strength; Thermal conductivity; Porosity; Correlation analysis

刊期 : 2022年第11期

DOI : 10.19761/j.1000-4637.2022.11.068.05

文章编号 :

基金项目 : 河南省重点研发与推广专项（科技攻关）项目（222102320112）。

作者 : 曹星星a，党钧陶a，b，李风兰a，b

单位 : 华北水利水电大学 a.土木与交通学院；b.河南省生态建材工程国际联合实验室，河南郑州 450045

曹星星a，党钧陶a，b，李风兰a，b

曹星星,党钧陶,李风兰.水灰比对泡沫混凝土抗压强度和导热系数的影响[J].混凝土与水泥制品,2022(11):68-71,75.

CAO X X,DANG J T,LI F L,et al.Effect of Water-cement Ratio on the Compressive Strength and Thermal Conductivity of Foamed Concrete[J].China Concrete and Cement Products,2022(11):68-71,75.

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引用本文

Abstract: The effects of water-cement ratio on the compressive strength, thermal conductivity and porosity of foamed concrete with density grades of 300 and 500 were studied. The results show that the influence of water-cement ratio on the properties of foamed concrete is different due to the different density grades. When the water-cement ratio is 0.25, the compressive strength of foamed concrete with density grade of 300 reaches the maximum, which is 1.13 MPa, and the thermal insulation performance is relatively good. With the increase of water-cement ratio, the thermal conductivity of foamed concrete with density grade of 500 increases continuously, and the compressive strength and porosity decrease continuously, and when the water-cement ratio is 0.35, its strength and thermal insulation performance reach the optimum. There is a good correlation between the porosity of foamed concrete and the compressive strength and thermal conductivity.

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水灰比对泡沫混凝土抗压强度和导热系数的影响

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