Effect of GRP by-product addition on plastic and hardened properties of cement mortars

Francesca Tittarelli*, Shiho Kawashima, Nathan Tregger, Giacomo Moriconi, Surendra P Shah

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations

Abstract

The possibility of recycle Glass Reinforced Plastic industrial by-product Dust (GRPD) in cementitious materials was considered and the effect of GRPD addition on plastic and hardened properties of cement mortars was investigated. Results revealed that GRPD addition delays the setting time of cement paste, but the delay can be partially recovered by using a previously heated GRPD. Moreover, GRPD is effective in reducing the viscosity and yield stress of cement paste when used as a partial cement replacement. Replacing 5 - 10% of sand volume with GRPD causes an increase in autogenous shrinkage and deformability of mortars as well as a strong reduction in the mechanical performance. However, the risk of cracking induced by restrained drying shrinkage and capillary water absorption is significantly lower in the presence of GRPD. This decrease could involve enhanced durability of GRPD mortars, even if only in a supporting role.

Original languageEnglish (US)
Title of host publication2nd International Conference on Sustainable Construction Materials and Technologies
Pages677-687
Number of pages11
StatePublished - Dec 1 2010
Event2nd International Conference on Sustainable Construction Materials and Technologies - Ancona, Italy
Duration: Jun 28 2010Jun 30 2010

Publication series

Name2nd International Conference on Sustainable Construction Materials and Technologies

Other

Other2nd International Conference on Sustainable Construction Materials and Technologies
CountryItaly
CityAncona
Period6/28/106/30/10

ASJC Scopus subject areas

  • Building and Construction

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