Paper Title:
Drying Shrinkage of Concrete Affected by Content of Stone Powder in Proto-Machine-Made Sand
  Abstract

To improve the application of the new proto-machine-made sand in structural engineering, tests are carried out to study the drying shrinkage of concrete affected by stone powder in proto- machine-made sand. The target cubic compressive strength of concrete is 55 MPa, the main factor varied in mix proportion of concrete is the contents of stone powder by mass of proto-machine-made sand from 3 % to 16 %. The drying shrinkage strains of concrete are measured by the standard method at the ages of 1 d, 3 d, 7 d, 14 d, 28 d, 60 d, 90 d, 120 d, 150 d and 180 d. Based on test results, the drying shrinkage of concrete affected by the contents of stone powder in proto-machine-made sand is analyzed and compared with that of similar test of concrete with traditional machine-made sand, which shows that there is the optimum content of stone powder resulting in the lower drying shrinkage of concrete. The formula for predicting drying shrinkage strain of concrete is proposed.

  Info
Periodical
Advanced Materials Research (Volumes 152-153)
Edited by
Zhengyi Jiang, Jingtao Han and Xianghua Liu
Pages
1176-1179
DOI
10.4028/www.scientific.net/AMR.152-153.1176
Citation
F. L. Li, Q. Zhu, "Drying Shrinkage of Concrete Affected by Content of Stone Powder in Proto-Machine-Made Sand", Advanced Materials Research, Vols. 152-153, pp. 1176-1179, 2011
Online since
October 2010
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Price
$32.00
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