EFFECT OF ARTIFICIAL SAND ON MECHANICAL PROPERTIES OF SELF COMPACTING GEOPOLYMER CONCRETE
Keywords:
Self compacting geopolymer concrete, class F fly ash, ground granulated blast furnace slag, artificial sand, compressive strength, and flexural strength.Abstract
Self compacting geopolymer concrete (SCGC) is an advanced concrete that doesn’t require both cement and compaction. In this research, SCGC mixes were prepared using class F fly ash (FA) and ground granulated blast furnace slag (GGBS) in 50:50 proportions with artificial sand (ARS) as fine aggregate. According to EFNARC guidelines mix design was prepared with 8M, 10M and 12M of NaOH. After successful evaluation of various fresh properties like slump flow, T50cm slump flow, V-funnel, L-box, the present experimental investigation was carried out on mechanical properties like compressive strength and flexural strength after 28 and 56 days of ambient room temperature curing. Performance aspects such as first crack load, ultimate load, ultimate deflection, crack patterns and failure mode of reinforced SCGC (RSCGC) beams were studied. The mechanical properties are evaluated and get a conclusion that curing time gives better strength in all molarities and also found that the increase in NaOH molarity decreased the fresh properties, however it increased the compressive and flexural strength of SCGC.
