葡萄糖酸钠与聚羧酸减水剂在水泥基材料中的协同作用研究

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发布时间：2020-01-06 00:00:00

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葡萄糖酸钠与聚羧酸减水剂在水泥基材料中的协同作用研究

Study on the synergistic effect of sodium gluconate and polycarboxylate superplasticizer in cement-based materials

2024年第9期

聚羧酸减水剂；葡萄糖酸钠；流动度；减水率；竞争吸附；协同作用

Polycarboxylate superplasticizer; Sodium gluconate; Fluidity; Water reduction rate; Competitive adsorption; Synergistic effect

2024年第9期

10.19761/j.1000-4637.2024.09.028.05

南宁市科学研究与技术开发计划项目（20191016）。

畅佳超1，2，王育宏2，胡海力2，黄家叙2，谭锋章2

1.南宁新泰瑞科建材股份有限公司，广西南宁530000；2.明耀国际集团有限公司，广西南宁 530000

畅佳超1，2，王育宏2，胡海力2，黄家叙2，谭锋章2

CHANG J C,WANG Y H,HU H L,et al.Study on the synergistic effect of sodium gluconate and polycarboxylate superplasticizer in cement-based materials[J].China Concrete and Cement Products,2024(9):28-34,37.

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摘要：研究了葡萄糖酸钠（SG）与聚羧酸减水剂母液（PC-A、PC-B）复掺对水泥基材料性能的影响，并分析了其协同作用。结果表明：当SG、PC-A单掺时，在相同掺量下，SG对水泥净浆流动度及胶砂减水率的提高有一定的效果，但其减水性和保坍性远低于PC-A；SG、PC-A、PC-B三者复掺时，在水泥颗粒上存在竞争吸附，SG可使聚羧酸减水剂更好地发挥其减水性和保坍性，具有较好的协同作用；从工作性来看，RK-A-7组的SG与聚羧酸减水剂母液复掺比例为最佳；从凝结时间来看，RK-A-4组最佳；从抗压强度来看，RK-A-6组最佳。 Abstract: The effect of sodium gluconate(SG) and polycarboxylate superplasticizer mother liquor(PC-A, PC-B) on the properties of cement-based materials was studied, and their synergistic effect was analyzed. The results show that when SG and PC-A are added separately, at the same content, SG has a certain effect on improving the fluidity of cement paste and the water reduction rate of mortar, but its water reduction and slump retention are much lower than PC-A. When SG, PC-A, and PC-B are mixed together, there is competitive adsorption on cement particles. SG can better enhance the water reducing and slump retaining properties of polycarboxylate superplasticizer, and has a good synergistic effect. From the perspective of workability, the optimal ratio of SG and polycarboxylate superplasticizer mother liquor is achieved in the RK-A-7 group. From the perspective of setting time, the RK-A-4 group is the best. From the perspective of compressive strength, the RK-A-6 group is the best.

英文名 : Study on the synergistic effect of sodium gluconate and polycarboxylate superplasticizer in cement-based materials

刊期 : 2024年第9期

关键词 : 聚羧酸减水剂；葡萄糖酸钠；流动度；减水率；竞争吸附；协同作用

Key words : Polycarboxylate superplasticizer; Sodium gluconate; Fluidity; Water reduction rate; Competitive adsorption; Synergistic effect

刊期 : 2024年第9期

DOI : 10.19761/j.1000-4637.2024.09.028.05

文章编号 :

基金项目 : 南宁市科学研究与技术开发计划项目（20191016）。

作者 : 畅佳超1，2，王育宏2，胡海力2，黄家叙2，谭锋章2

单位 : 1.南宁新泰瑞科建材股份有限公司，广西南宁530000；2.明耀国际集团有限公司，广西南宁 530000

畅佳超1，2，王育宏2，胡海力2，黄家叙2，谭锋章2

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摘要

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结论

参考文献

引用本文

Abstract: The effect of sodium gluconate(SG) and polycarboxylate superplasticizer mother liquor(PC-A, PC-B) on the properties of cement-based materials was studied, and their synergistic effect was analyzed. The results show that when SG and PC-A are added separately, at the same content, SG has a certain effect on improving the fluidity of cement paste and the water reduction rate of mortar, but its water reduction and slump retention are much lower than PC-A. When SG, PC-A, and PC-B are mixed together, there is competitive adsorption on cement particles. SG can better enhance the water reducing and slump retaining properties of polycarboxylate superplasticizer, and has a good synergistic effect. From the perspective of workability, the optimal ratio of SG and polycarboxylate superplasticizer mother liquor is achieved in the RK-A-7 group. From the perspective of setting time, the RK-A-4 group is the best. From the perspective of compressive strength, the RK-A-6 group is the best.

关键词:

the

and

pc-a

pc-b

superplasticizer

水泥

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葡萄糖酸钠与聚羧酸减水剂在水泥基材料中的协同作用研究

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