EFFECTS OF GROUNDNUT HUSK ASH (GHA) IN CEMENT PASTE AND MORTAR

This paper presents the findings of an investigatio n on the effects of Groundnut Husk Ash (GHA) in cement paste and Mortar as a supplementary cementing material. The GHA used was obtained by controlled burning of groundnut husk to a temperature of 600 o C and sieved through 75 μ m sieve after allowing cooling, and characterized. The effects of GHA on cement paste and mortar were investigated at replacement levels of 0, 5, 10 , 20, 30 and 40 %, respectively by weight of cement. A total of ninety 40 mm x 40 mm x 160 mm GH A-Mortar prisms made with 1 : 3 (cement : sand) and 0.5 water-cement ratio were tested for f lexural and compressive strengths at 3, 7, 28, 60 and 90 days of curing.