Paper Title:
Effect of High Volumes of Fly Ash on Flowability and Drying Shrinkage of Engineered Cementitious Composites
  Abstract

In order to investigate flowability and drying shrinkage of ECC, mini-slump flow deformation test and drying shrinkage are employed to analyse the influence of fly ash on the flowability and shrinkage of ECC. The water-binder ratio is kept at 0.25. The replacement ratio of cement by fly ash is 50%, 60%, 70% and 80%, respectively. The experimental results show that fluidity of fresh cment paste increases obviously as the fly ash becomes larger. The drying shrinkage of ECC specimens is greatly reduced as the content of fly ash increases from 50% to 80%. The measured drying shrinkage strian of ECC specimens with 80% fly ash at 28 days is less than 1000×10-6. 25% reduction of drying shrinkage of ECC is found when the fly ash content increases from 50% to 80%.

  Info
Periodical
Materials Science Forum (Volumes 675-677)
Edited by
Yi Tan and Dongying Ju
Pages
61-64
DOI
10.4028/www.scientific.net/MSF.675-677.61
Citation
Y. Zhu, Y. Z. Yang, Y. Yao, "Effect of High Volumes of Fly Ash on Flowability and Drying Shrinkage of Engineered Cementitious Composites", Materials Science Forum, Vols. 675-677, pp. 61-64, 2011
Online since
February 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Zhi Min He, Jun Zhe Liu, Tian Hong Wang
Abstract:In precast concrete elements manufacturing, steam-cured concrete incorprating 30% mineral admixtures encountered the problem of too low...
1535
Authors: Li Guo Ma, Yun Sheng Zhang
Abstract:The hydration heat evolution process is studied on the pure cement paste, the cement- fly ash binary system and the cement- silica fume...
4001
Authors: Chun Ping Tang, Li Gun Wu
Abstract:Aiming at the characteristics of phosphate repair material, by mixing fly ash in it, its properties can be improved effectively. The...
796
Authors: Ying Jun Mei, Jin Hang Wu, Jian Hua Zheng
Chapter 4: Ecological Architecture and Building Energy Saving Technology
Abstract:The reutilization of waste concrete and fly ash produced by power plant is one way to develop green concrete. The addition of fly ash in...
654