Paper Title:
Properties of Permeable Concrete Substrate Having Dual Pore Structures
  Abstract

Porous concretes with continuous voids have been gaining more interest as an ecological material because of their useful functions such as water permeability and adsorption ability. Especially, to make porous concrete much more environmentalized, micropores play a role of nest for microorganism and germs to live in. So micropore distribution and the size of micropores especially open pores are the key point . In this study, the size and distribution of micropores of porous concrete were effected by the AE agents to the cement pastes and then by the treating types, treating times, treating temperatures, and the vacuum pressure during the treating. And another group specimens were added sodium bicarbonate and alum. And then physical properties were examined, digital microscope was also used to observe the micropores sizes and distributions. Cracks were observed on the cement-aggregate joint when the amount and vacuum pressure increased. And high treating temperature shows no good on the bonding of cement paste and aggregate.

  Info
Periodical
Edited by
Byungsei Jun, Hyungsun Kim, Chanwon Lee, Soo Wohn Lee
Pages
233-236
DOI
10.4028/www.scientific.net/MSF.569.233
Citation
Z. X. Yang, K. H. Hwang, J. B. Yoon, J.O. Kim, M.C. Kim, "Properties of Permeable Concrete Substrate Having Dual Pore Structures", Materials Science Forum, Vol. 569, pp. 233-236, 2008
Online since
January 2008
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$32.00
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