Portland cement hydration in the presence of admixtures: black gram pulse and superplasticizer

Materials Research

Viveka Nand Dwivedi²  Shiva Saran Das²  Nakshatra Bahadur Singh²  Sarita Rai¹  Namdev Shriram Gajbhiye¹ 

[1] ,DDU Gorakhpur University Department of Chemistry Gorakhpur,India

关键词: Mössbauer spectroscopy;    black gram pulse;    superplasticizer;    nano size;   

DOI  :  10.1590/S1516-14392008000400008

来源: SciELO

【 摘 要 】

Effect of admixtures such as black gram pulse (BGP) and sulfonated naphthalene based superplasticizer (SP) on the hydration of Portland cement has been studied. The hydration characteristics of OPC in the presence of BGP and SP were studied with the help of non evaporable water content determinations, calorimetric method, Mössbauer spectroscopic and atomic force microscopic techniques. Results have shown that both BGP and SP get adsorbed at the surface of cement and its hydration products. The hydration of Portland cement is retarded in the presence of both the admixtures and nanosize hydration products are formed.

【 授权许可】

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