Paper Title:
Studies on Improving PP Fiber Reinforced Concrete
  Abstract

Grafting method was used to modify polypropylene (PP) fiber to enhance the fiber reinforced concrete in this study. Polyacrylamide (PAM) was grafted onto PP surface by UV radiation using benzophenone (BP) as a photoinitiator. The microstructure of PP, and the interaction force between PP and the polar probe were observed with an atomic force microscopy (AFM). Experimental results showed that the roughness of PAM-grafted PP surface decreased significantly in comparison with that of the untreated PP surface. In addition, instead of smooth force curve as that of the untreated PP, the interaction between the probe and PAM-grafted PP surface appeared an oscillation. The above results gave the evidences that PAM had been successfully grafted onto the PP surface as discussed . The high hydrophilic property of PAM modifies the surface property of PP fiber and strengthens PP fiber reinforced concrete.

  Info
Periodical
Advanced Materials Research (Volumes 250-253)
Edited by
Guangfan Li, Yong Huang and Chaohe Chen
Pages
678-681
DOI
10.4028/www.scientific.net/AMR.250-253.678
Citation
L. H. Chou, C. K. Lu, M. T. Lee, "Studies on Improving PP Fiber Reinforced Concrete", Advanced Materials Research, Vols. 250-253, pp. 678-681, 2011
Online since
May 2011
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Price
$32.00
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