AN STUDY ON APPLICATION OF HIGH EARLY STRENGTH ADMIXTURES IN RAILWAY PRESTRESSED CONCRETE

Wu Zhigang; Duan Fengtao; Hou Xueli; Hao Tingyu; Tu Yubo; Li Wenzhong

doi:10.13204/j.gyjz201011005

Volume 40 Issue 11

May 2015

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Wu Zhigang, Duan Fengtao, Hou Xueli, Hao Tingyu, Tu Yubo, Li Wenzhong. AN STUDY ON APPLICATION OF HIGH EARLY STRENGTH ADMIXTURES IN RAILWAY PRESTRESSED CONCRETE[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(11): 15-17. doi: 10.13204/j.gyjz201011005

Citation:

Wu Zhigang, Duan Fengtao, Hou Xueli, Hao Tingyu, Tu Yubo, Li Wenzhong. AN STUDY ON APPLICATION OF HIGH EARLY STRENGTH ADMIXTURES IN RAILWAY PRESTRESSED CONCRETE[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(11): 15-17. doi: 10.13204/j.gyjz201011005

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AN STUDY ON APPLICATION OF HIGH EARLY STRENGTH ADMIXTURES IN RAILWAY PRESTRESSED CONCRETE

doi: 10.13204/j.gyjz201011005

1.
1. Central Research Institute of Building and Construction Co.Ltd,MCC Group,Beijing 100088,China;
2.
2. The Third Engineering Group Co.Ltd of China Railway,Taiyuan 030024,China

Received Date: 2010-07-15
Publish Date: 2010-11-20

Abstract

Abstract

It is studied the influence of fly ash,granulated blast furnace slag and high early admixtures on compressive strength of concrete.The results of experiments show that high early admixtures can promote the early strength and the elastic modulus to satisfy the design standard.But the creep of concrete will be doubled when loading at early age,Based on the conclusion of this paper,it is suggested that the tension of reinforcement should be pressesed later,so as to guarantee the quality of the prestressed members.
- high early admixtures,
- railway box girders,
- creep,
- elastic modulus