Influence of Type and Size of Fine Aggregate on Glass Fiber Reinforced Self-Compacting Mortars (GFRSCM)

Abstract

This paper addresses the fresh and hardened state behavior of glass fiber reinforced self-compacting mortars (GFSCMs) with various types and sizes of fine aggregate. Mini-slump flow and mini V-funnel tests were performed to evaluate the workability of GFSCMs. Compressive strength, split tensile strength, and flexural strength tests at the end of 28 days of water curing were determined.Water sorptivity tests were conducted on 28-day cured cube specimens. The variable parameters in this study include type of fine aggregate, particle size of aggregate, and mix proportions. The test results showeda decrease in the compressive strength, split tensile strength, and flexural strength with decrease in size of aggregate whereas sorptivity decreased with increase in size of aggregate and time of immersion. The strength of GFSCMs was more with natural sand comparedto crushed stone fine aggregate and foundry sand.

Keywords:glass fibers, mini slump cone, mini V-funnel, self-compacting mortars, sorptivity