Paper Title:
Experimental Research on Mechanical Properties of the early-Age Shotcrete
  Abstract

Abstract. The compressive strength and elastic modulus of early-age shotcrete have important influence on the safety of tunnel during construction period. In order to investigate the laws of the mechanical properties of early-age shotcrete, experiments on the compressive strength and elastic modulus of early-age shotcrete with two different mixes used frequently on construction sites were carried out. The results show that the compressive strength and elastic modulus of shotcrete develop fairly rapidly and especially the development of elastic modulus of shotcrete is faster than that of ordinary concrete. There is an exponential relationship between the compressive strength and time as well as the elastic modulus development and time. Simultaneously their formulas were derived. The research results of this paper are not only helpful to understand the laws of the mechanical properties of early-age shotcrete, but also provide some reference for the reliability analysis of tunnel under construction.

  Info
Periodical
Edited by
Xuejun Zhou
Pages
2188-2192
DOI
10.4028/www.scientific.net/AMM.90-93.2188
Citation
N. Xie, J. Ouyang, B. Li, J. H. Lu, "Experimental Research on Mechanical Properties of the early-Age Shotcrete", Applied Mechanics and Materials, Vols. 90-93, pp. 2188-2192, 2011
Online since
September 2011
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Price
$32.00
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