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| Experimental Study on Coal Gasification Fly Ash as Cement Admixture |
1. Shanxi Zhuoyue Cement Co., Ltd. , Changzhi Shanxi 047500, China;
2. Wuhan University of Technology, Wuhan Hubei 430000, China;
3. Hebei University of Engineering, Handan Hebei 056038, China
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Abstract The chemical composition and micro morphology of coal gasification fly ash and fly ash, the fluidity of fly ash with different proportions of coal gasification fly ash replacing fly ash, and the effect of coal gasification fly ash as cement admixture on the physical and chemical properties of cement were tested. The test results show that compared with fly ash, coal gasification fly ash has the characteristics of large specific surface area, high content of glass beads and high sphericity of beads; Instead of fly ash as admixture, the fluidity and strength of cement mortar are improved, and the water demand is decreased. The above results show that coal gasification fly ash can replace fly ash as cement admixture.
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Received: 25 December 2021
Published: 25 September 2022
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