Effect of Mixing Time in Fly Ash Block Property
Effect of mixing time on fly ash block property
Ayan Kumar Keora a a
Development Alternatives, B-32, TARA Crescent, Qutab Institutional Area, New Delhi – 110016, India Abstract: This paper presents the effects of mixing time on the compressive strength of fly ash brick. Before designing the mix, sieve analysis of sand and fly ash was carried out and their fineness moduli were determined. Also the specific gravity and calorific value and ash content of fly ash were determined. The CaO content of lime also was determined by lime testing kit. The material batching is based on the composition derived from TARA laboratory report. Composition Sand Flay ash Virgin lime Phosphogypsum
50 50 9% of the total weight of sand and fly ash 3% of the total weight of sand and fly ash
The mixing duration was varying 6 minutes to 30 minutes. The strengths were measured at the curing ages of 28 days using compressive strength machine. The results revealed that the compressive strengths of fly ash bricks appreciably increased with increase in mixing duration from 6 minutes to 15 minutes but remained almost constant beyond 12 minutes for 28 days ages tested. For example, at 6, 8, 10, and 12 minutes mixing; the compressive strengths at 28 days 2 were 147.15, 149.59, 158.54, and 197.72 kg/cm respectively while at 14, 15, 20, 25 and 30 minutes mixing ; the compressive strengths at 28 days were 212.83, 2 216.54, 216.59, 221.34 and 227.12 kg/cm .
Keywords: Compressive strength, curing, machine mixing, mixing duration
Introduction Modern Construction prefers use of fly ash bricks. This one of the global go-green initiatives, and we are an active member of the same. This noble cause is supported by manufacturing and supplying bricks made from re-usable fly ash. Fly-Ash Bricks are an environment friendly cost saving building product. These bricks are 3 times stronger than conventional bricks with consistent strength. These bricks are ideally suited for internal, external, load
Ayan Kumar Keora a a
Development Alternatives, B-32, TARA Crescent, Qutab Institutional Area, New Delhi – 110016, India Abstract: This paper presents the effects of mixing time on the compressive strength of fly ash brick. Before designing the mix, sieve analysis of sand and fly ash was carried out and their fineness moduli were determined. Also the specific gravity and calorific value and ash content of fly ash were determined. The CaO content of lime also was determined by lime testing kit. The material batching is based on the composition derived from TARA laboratory report. Composition Sand Flay ash Virgin lime Phosphogypsum
50 50 9% of the total weight of sand and fly ash 3% of the total weight of sand and fly ash
The mixing duration was varying 6 minutes to 30 minutes. The strengths were measured at the curing ages of 28 days using compressive strength machine. The results revealed that the compressive strengths of fly ash bricks appreciably increased with increase in mixing duration from 6 minutes to 15 minutes but remained almost constant beyond 12 minutes for 28 days ages tested. For example, at 6, 8, 10, and 12 minutes mixing; the compressive strengths at 28 days 2 were 147.15, 149.59, 158.54, and 197.72 kg/cm respectively while at 14, 15, 20, 25 and 30 minutes mixing ; the compressive strengths at 28 days were 212.83, 2 216.54, 216.59, 221.34 and 227.12 kg/cm .
Keywords: Compressive strength, curing, machine mixing, mixing duration
Introduction Modern Construction prefers use of fly ash bricks. This one of the global go-green initiatives, and we are an active member of the same. This noble cause is supported by manufacturing and supplying bricks made from re-usable fly ash. Fly-Ash Bricks are an environment friendly cost saving building product. These bricks are 3 times stronger than conventional bricks with consistent strength. These bricks are ideally suited for internal, external, load