Preparation for Retarding and High Early Strength Concrete
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2015年第4期
论文作者：胡志坚 FENG Hao WANG Xuefei
文章页码：787 - 789
摘 要：The primary objective of this research was to determine optimum dosage of mixing concrete containing plasticizers and fly ash, consistent with desirable structural grade concrete properties. Factorial tests were also conducted to investigate the four main factors: water-cementing materials ratio, water content, content of superplasticizers（SP） and fly ash content. It was found that the requirement for setting time played the dominant role in shrinkage and anti-cracking, and fly ash played a critical role in workability and reducing heat of hydration but showed insignificant effects on slump, early strength and initial setting time of concrete.
胡志坚1，FENG Hao1，WANG Xuefei2
1. Department of Road and Bridge Engineering, Wuhan University of Technology2. Department of Chemistry,Wuhan University of Technology
摘 要：The primary objective of this research was to determine optimum dosage of mixing concrete containing plasticizers and fly ash, consistent with desirable structural grade concrete properties. Factorial tests were also conducted to investigate the four main factors: water-cementing materials ratio, water content, content of superplasticizers（SP） and fly ash content. It was found that the requirement for setting time played the dominant role in shrinkage and anti-cracking, and fly ash played a critical role in workability and reducing heat of hydration but showed insignificant effects on slump, early strength and initial setting time of concrete.
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