Paper Title:
Flexural Strengthening with Externally Poured Ultra High Toughness Cementitious Composites
  Abstract

The flexural behavior of reinforced concrete (RC) members strengthened with postpoured Ultra High Toughness Cementitious Composites (UHTCC) was investigated in this paper. The flexural behavior, failure mode and crack propagation during loading process of composite specimens were studied, and their structural behavior was also compared to that of original members. The experimental results showed that post-poured UHTCC materials enhanced flexural bearing capacity and toughness of existing concrete members. And introducing UHTCC material into strengthening enabled the composite specimens sustain the loading at a larger deflection without failure. It also revealed that post-poured UHTCC layer dispersed larger cracks in upper concrete into multiple tightly-spaced fine cracks, which prolonged the appearance of harm surface cracks and improved the durability of existing structures.

  Info
Periodical
Materials Science Forum (Volumes 675-677)
Edited by
Yi Tan and Dongying Ju
Pages
579-582
DOI
10.4028/www.scientific.net/MSF.675-677.579
Citation
N. Wang, S. L. Xu, "Flexural Strengthening with Externally Poured Ultra High Toughness Cementitious Composites", Materials Science Forum, Vols. 675-677, pp. 579-582, 2011
Online since
February 2011
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Price
$32.00
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