Paper Title:
Influence of Surface Treatment on Pore Structures of Cement-Based Materials
  Abstract

The objective of this investigation is to evaluate the effect of surface treatments on cement-based materials, which include mortar and concrete samples. Penetrated sealers and methyl methacrylate (MMA) were used as surface treatment materials. Two concrete mixes (w/c = 0.35, 0.55) were selected and cubic/cylindrical specimens were prepared according to ASTM specifications. The treated specimens have higher compressive strengths than the control specimens. Also, the absorptions and total charge passed of rapid chloride penetration test (RCPT) are lower in the treated specimens. Scanning electronic microscope (SEM) was utilized to estimate the microstructure of the specimens. Denser pore structures and narrower pore-size distribution were observed in SEM micrographs and mercury intrusion porosimetry (MIP) spectrum for the treated specimens, which are correspondent to the macro-observation. The positive effect is most prominent in polymer treated specimens. For higher w/c ratio mix, large capillary pores were filled by most of treatment materials and compressive strength significantly increased, while, for lower w/c ratio mix, polymer and silicate sealer filled in medium capillary pores as indicated by MIP and RCPT results.

  Info
Periodical
Key Engineering Materials (Volumes 302-303)
Edited by
Nai-Qian Feng and Gai-Fei Peng
Pages
347-355
DOI
10.4028/www.scientific.net/KEM.302-303.347
Citation
C. H. Chen, M. C. Ho, S. H. Yeh, R. Huang, "Influence of Surface Treatment on Pore Structures of Cement-Based Materials", Key Engineering Materials, Vols. 302-303, pp. 347-355, 2006
Online since
January 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Jin Jie Shi, Wei Sun
Abstract:A detailed investigation has been carried out to clarify the effect of porosity on steel corrosion in cement-based materials. Corrosion...
3042
Authors: Kun Lin Ma, Xing Feng, Guang Cheng Long, You Jun Xie
Abstract:The influencing factors of sodium sulfate solution physical crystallization attack on cement mortars were investigated through analyzing the...
36
Authors: Dong Lin, Yu Fei Yuan, Zi Yun Wen
Abstract:In ordinary processing condition, using small amount (2%) of polymer to modify reactive powder concrete (RPC), the performance of modified...
548
Authors: Wei Ting Lin, Ta Yuan Han, Yuan Chieh Wu, An Cheng, Ran Huang, Tsai Lung Weng
Chapter 1: Materials Engineering and Processing Technologies of Materials
Abstract:This study investigates the properties of cement-based composites with addition of various recycled rock wools and compare with the...
113
Authors: Tasi Lung Weng, Wei Ting Lin
Chapter 1: New and Advanced Materials, Materials Structure and Technologies
Abstract:The effect of penetrating sealer on the structure of surface pore, mechanical properties, and durability of cement-based composites was...
245