Paper Title:
Experimental Investigations of Shear Lag Effect in Orthotropic Composite Box Beam
  Abstract

The influence of curing time on the mechanical property of the phosphoaluminate cement (PAC) was investigated, and the mechanism was discussed as well. The phase composition and morphology of hydration products, electrical properties, porosity and pore size distribution of PAC cured different age were analyzed with XRD, EIS and MIP. The results showed PAC has the property of early-high strength, and the compressive strength of PAC cured for 1 day was about 70% of 28 days’. The main hydration products of PAC are micro-crystal phase and gel of phosphate and phosphoaluminate which formed compacter microstructure. In addition, there are no calcium hydroxide (CH) and ettringite (AFt) produced during the process of hydration. The compressive strength of PAC increased with age, which was due to more products continuously produced. The ac resistance analysis manifested as the change of the nyquist pattern and resistance value.

  Info
Periodical
Advanced Materials Research (Volumes 150-151)
Edited by
Jinglong Bu, Zhengyi Jiang and Sihai Jiao
Pages
1750-1753
DOI
10.4028/www.scientific.net/AMR.150-151.1750
Citation
Y. P. Wu, Y. H. Wang, L. X. Wang, Z. G. Bian, "Experimental Investigations of Shear Lag Effect in Orthotropic Composite Box Beam", Advanced Materials Research, Vols. 150-151, pp. 1750-1753, 2011
Online since
October 2010
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Price
$32.00
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