Effects of Pressure on Resistance to Freezing and Thawing of Fiber-Reinforced Cement Board

Katherine G. Kuder*, Surendra P Shah

*Corresponding author for this work

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

Fiber-reinforced cement board (FRCB) is used in residential construction applications as an alternative to wood for siding, roofing, and backerboard products. To improve the resistance to freezing and thawing of FRCB, some manufacturers have started pressing the material after it is formed, expelling excess water and possibly improving the interlaminar bond. The objective of this project is to determine the effects of this pressure on the resistance to freezing and thawing of FRCB. Materials were subjected to as many as 300 freezing-and-thawing cycles based on a modified version of ASTM Standard C 1185. Mechanical properties, including flexural and interlaminar bond (ILB) strength, were measured. In addition, microstructural properties were evaluated using mercury intrusion porosimetry and scanning electron microscopy (SEM). The results indicate that, before freezing and thawing, pressure treatment improves the flexural and ILB strength and decreases the porosity. After freezing-and-thawing cycling, however, pressure treatment appears to improve the ILB strength but does not affect the flexural strength or porosity.

Original languageEnglish (US)
Pages (from-to)463-468
Number of pages6
JournalACI Materials Journal
Volume100
Issue number6
StatePublished - Nov 1 2003

Keywords

  • Durability
  • Porosity
  • Reinforcement

ASJC Scopus subject areas

  • Building and Construction
  • Materials Science(all)

Fingerprint Dive into the research topics of 'Effects of Pressure on Resistance to Freezing and Thawing of Fiber-Reinforced Cement Board'. Together they form a unique fingerprint.

Cite this