Combined effect of sodium sulphate and superplasticizer on the hydration of fly ash blended Portland® cement

Materials Research

Mukesh Kumar²  Narendra Pratap Singh¹  Sanjay Kumar Singh¹  Nakshatra Bahadur Singh¹ 

[1] ,Kryton, Buildmat Company, Pvt. Ltd.,India

关键词: Portland® cement;    fly ash;    superplasticizer;    sodium sulphate;    hydration;   

DOI  :  10.1590/S1516-14392010000200010

来源: SciELO

【 摘 要 】

Combined effect of polycarboxylate type superplasticizer and sodium sulphate on the hydration of fly ash blended Portland® cement has been studied by using different techniques. Water consistency, setting times, non-evaporable water contents, water percolation, air contents, compressive strengths and expansion in corrosive atmosphere were determined. Hydration products were examined with the help of DTA and X-ray diffraction techniques. It is found that the superplasticizer reduces the pore size and its adsorption on cement surfaces is decreased in the presence of sodium sulphate. Mechanism of hydration is discussed.

【 授权许可】

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