再生微粉泡沫混凝土的配合比设计_《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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再生微粉泡沫混凝土的配合比设计

Mix Proportion Design of Foamed Concrete with Recycled Micropowder

2022年第7期

再生微粉；正交试验；泡沫混凝土；功效系数法；配合比设计；抗压强度；微观分析

Recycled micropowder; Orthogonal test; Foamed concrete; Efficacy coefficient method; Mix proportion design; Compressive strength; Microscopic analysis

2022年第7期

10.19761/j.1000-4637.2022.07.087.05

江西省教育厅科学技术研究项目（GJJ205301）；南昌航空大学研究生创新专项资金项目（YC2020-095）。

谢洪阳1，董建军1，戴宜文1，邓勇1，邓明伟2

1.南昌航空大学土木建筑学院，江西南昌 330063；2.江西建设职业技术学院，江西南昌 330200

谢洪阳1，董建军1，戴宜文1，邓勇1，邓明伟2

谢洪阳,董建军,戴宜文,等.再生微粉泡沫混凝土的配合比设计[J].混凝土与水泥制品,2022(7):87-91.

XIE H Y,DONG J J,DAI Y W,et al.Mix Proportion Design of Foamed Concrete with Recycled Micropowder[J].China Concrete and Cement Products,2022(7):87-91.

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摘要：通过正交试验研究了气泡群掺量、再生微粉掺量、水料比和羟丙基甲基纤维素醚（HPMC）掺量对再生微粉泡沫混凝土性能的影响，并结合功效系数法确定了再生微粉泡沫混凝土的最优配合比。采用SEM和XRD探究了再生微粉泡沫混凝土的微观结构。结果表明：再生微粉泡沫混凝土的抗压强度随着气泡群掺量、再生微粉掺量的增加呈下降趋势，随着水料比的增加呈先上升后下降的趋势，随着HPMC掺量的增加呈上升趋势；再生微粉泡沫混凝土的最优配合比为气泡群掺量4%、再生微粉掺量30%、水料比0.6、HPMC掺量0.07%；再生微粉泡沫混凝土抗压强度的提升主要归因于孔隙细化和HPMC减少了连通孔的产生。 Abstract: The effects of bubbles content, recycled micropowder content, water-material ratio and HPMC content on the properties of foamed concrete with recycled micropowder were studied by orthogonal test, and the optimal mix proportion was determined combined with the efficacy coefficient method. The microstructure of foamed concrete with recycled micropowder was investigated by SEM and XRD. The results show that the compressive strength of foamed concrete with recycled micropowder decreases with the increase of the content of bubbles and recycled micropowder, increases first and then decreases with the increase of the water-material ratio, and increases with the increase of the content of HPMC. The optimal mix proportion of foamed concrete with recycled micropowder is 4% of bubbles, 30% of recycled micropowder, 0.6 of water-material ratio and 0.07% of HPMC. The improvement of the compressive strength of foamed concrete with recycled micropowder is mainly attributed to the pore refinement and HPMC reducing the generation of connected pores.

英文名 : Mix Proportion Design of Foamed Concrete with Recycled Micropowder

刊期 : 2022年第7期

关键词 : 再生微粉；正交试验；泡沫混凝土；功效系数法；配合比设计；抗压强度；微观分析

Key words : Recycled micropowder; Orthogonal test; Foamed concrete; Efficacy coefficient method; Mix proportion design; Compressive strength; Microscopic analysis

刊期 : 2022年第7期

DOI : 10.19761/j.1000-4637.2022.07.087.05

文章编号 :

基金项目 : 江西省教育厅科学技术研究项目（GJJ205301）；南昌航空大学研究生创新专项资金项目（YC2020-095）。

作者 : 谢洪阳1，董建军1，戴宜文1，邓勇1，邓明伟2

单位 : 1.南昌航空大学土木建筑学院，江西南昌 330063；2.江西建设职业技术学院，江西南昌 330200

谢洪阳1，董建军1，戴宜文1，邓勇1，邓明伟2

谢洪阳,董建军,戴宜文,等.再生微粉泡沫混凝土的配合比设计[J].混凝土与水泥制品,2022(7):87-91.

XIE H Y,DONG J J,DAI Y W,et al.Mix Proportion Design of Foamed Concrete with Recycled Micropowder[J].China Concrete and Cement Products,2022(7):87-91.

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摘要

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参考文献

引用本文

Abstract: The effects of bubbles content, recycled micropowder content, water-material ratio and HPMC content on the properties of foamed concrete with recycled micropowder were studied by orthogonal test, and the optimal mix proportion was determined combined with the efficacy coefficient method. The microstructure of foamed concrete with recycled micropowder was investigated by SEM and XRD. The results show that the compressive strength of foamed concrete with recycled micropowder decreases with the increase of the content of bubbles and recycled micropowder, increases first and then decreases with the increase of the water-material ratio, and increases with the increase of the content of HPMC. The optimal mix proportion of foamed concrete with recycled micropowder is 4% of bubbles, 30% of recycled micropowder, 0.6 of water-material ratio and 0.07% of HPMC. The improvement of the compressive strength of foamed concrete with recycled micropowder is mainly attributed to the pore refinement and HPMC reducing the generation of connected pores.

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