煅烧提升火山岩粉活性的研究_《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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煅烧提升火山岩粉活性的研究

Study on Improving the Activity of Volcanic Rock Powder by Calcination

2022年第12期

火山岩粉；煅烧；活性指数；XRD；水化机理

Volcanic rock powder; Calcination; Activity index; XRD; Hydration mechanism

2022年第12期

10.19761/j.1000-4637.2022.12.080.05

新疆自然科学基金面上项目（2019D01A74）；新疆水工新材料测试研究评价共享平台项目（PT2022）。

王怀义1，2，王深圳3，杨桂权1，2，程宁宁3

1.新疆水利水电科学研究院，新疆乌鲁木齐 830049；2.新疆水利水电材料工程技术研究中心，新疆乌鲁木齐 830049；3.新疆农业大学水利与土木工程学院，新疆乌鲁木齐 830052

王怀义1，2，王深圳3，杨桂权1，2，程宁宁3

王怀义,王深圳,杨桂权,等.煅烧提升火山岩粉活性的研究[J].混凝土与水泥制品,2022(12):80-84.

WANG H Y,WANG S Z,YANG G Q,et al.Study on Improving the Activity of Volcanic Rock Powder by Calcination[J].China Concrete and Cement Products,2022(12):80-84.

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摘要：研究了煅烧温度（200~800 ℃）和恒温时间（10 min、20 min）对新疆和田地区火山岩粉活性的影响，并进行了微观机理分析。结果表明：随着煅烧温度的增大，火山岩粉的活性指数先增大后减小，最佳煅烧方式为煅烧温度500～550 ℃、恒温20 min，此时，火山岩粉的28 d活性指数最大可提高18.0%；火山岩粉经过煅烧后，其中的SiO2、Al2O3、Fe2O3逐步失去结晶水，由晶体态逐渐向无定形态转化，从而增强了火山岩粉参与水泥水化反应的能力。 Abstract: The effects of calcination temperature (200~800 ℃) and constant temperature time (10 min, 20 min) on the activity of volcanic rock powder in Hotan area, Xinjiang were studied, and the microscopic mechanism was analyzed. The results show that with the increase of calcination temperature, the activity index of volcanic rock powder first increases and then decreases. The best calcination method is calcination temperature of 500～550 ℃ and constant temperature time of 20 min. At this time, the 28 day activity index of volcanic rock powder can be increased by 18.0% at most. After the volcanic rock powder is calcined, the SiO2, Al2O3 and Fe2O3 in it gradually lose the crystal water, and gradually transform from the crystalline state to the amorphous form, thus enhancing the ability of volcanic rock powder to participate in the cement hydration reaction.

英文名 : Study on Improving the Activity of Volcanic Rock Powder by Calcination

刊期 : 2022年第12期

关键词 : 火山岩粉；煅烧；活性指数；XRD；水化机理

Key words : Volcanic rock powder; Calcination; Activity index; XRD; Hydration mechanism

刊期 : 2022年第12期

DOI : 10.19761/j.1000-4637.2022.12.080.05

文章编号 :

基金项目 : 新疆自然科学基金面上项目（2019D01A74）；新疆水工新材料测试研究评价共享平台项目（PT2022）。

作者 : 王怀义1，2，王深圳3，杨桂权1，2，程宁宁3

单位 : 1.新疆水利水电科学研究院，新疆乌鲁木齐 830049；2.新疆水利水电材料工程技术研究中心，新疆乌鲁木齐 830049；3.新疆农业大学水利与土木工程学院，新疆乌鲁木齐 830052

王怀义1，2，王深圳3，杨桂权1，2，程宁宁3

王怀义,王深圳,杨桂权,等.煅烧提升火山岩粉活性的研究[J].混凝土与水泥制品,2022(12):80-84.

WANG H Y,WANG S Z,YANG G Q,et al.Study on Improving the Activity of Volcanic Rock Powder by Calcination[J].China Concrete and Cement Products,2022(12):80-84.

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摘要

参数

结论

参考文献

引用本文

Abstract: The effects of calcination temperature (200~800 ℃) and constant temperature time (10 min, 20 min) on the activity of volcanic rock powder in Hotan area, Xinjiang were studied, and the microscopic mechanism was analyzed. The results show that with the increase of calcination temperature, the activity index of volcanic rock powder first increases and then decreases. The best calcination method is calcination temperature of 500～550 ℃ and constant temperature time of 20 min. At this time, the 28 day activity index of volcanic rock powder can be increased by 18.0% at most. After the volcanic rock powder is calcined, the SiO₂, Al₂O₃ and Fe₂O₃ in it gradually lose the crystal water, and gradually transform from the crystalline state to the amorphous form, thus enhancing the ability of volcanic rock powder to participate in the cement hydration reaction.

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