Volume no :1, Issue no: 1, January (2010)

EFFECT OF MONTMORILLONITE ON STRENGTH, EXPANSIVE COEFFICIENT AND SETTING SHRINKAGE OF RECYCLED UNSATURATED POLYESTER CONCRETE

Author's: Ghi Ho Tae and Eun Soo Choi
Pages: [59] - [79]
Received Date: December 9, 2009
Submitted by:

Abstract

The effects of resin (binder), filler content, and montmorillonite contents on the strength, expansive coefficient, and linear setting shrinkage of a recycled unsaturated polyester resin-based polymer concrete are reported. In this study, heavy calcium carbonate was used as the filler. An aggregate grading, which resulted in the least void content, was used. Also, montmorillonite was used to achieve low shrinkage. The resin content was varied between 10 and 15 percent, and the filler content between 3 and 11 percent. Montmorillonite content was varied between 0 and 8 percent. The strength of polymer concrete increased with resin content initially, but decreased beyond a particular level of resin content. A fairly one-to-one correspondence was observed between the compressive strength and coefficient of thermal expansion of the PC. The shrinkage also increased linearly with resin content. It is also increased with filler and montmorillonite on the shrinkage is discussed. The practical significance of PC with and without montmorillonite was identified.

Keywords

PET resin, setting shrinkage, montmorillonite, length change.