Study on sintered fly ash aggregate (SFA) properties in comparison to IS: 9142-2 (2018) and its durability
By: Hemanta Kumar, Ram
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Publisher: Mumbai ACC LTD 2023Edition: Vol.97(4), Apr.Description: 27-35p.Subject(s): Civil EngineeringOnline resources: Click here
In:
Indian Concrete Journal - ICJSummary: As there is ever increasing demand of coarse aggregate for construction of concrete based infrastructure in India, the Indian construction industry is encountering grave problems due to scarcity of optimum quality coarse aggregate. India as a developing country demands humongous concrete requirements wherein coarse aggregate have a crucial role to play. The coarse aggregates are generally excavated enormously from mountains, hills, stone quarries etc. and crushed into various sizes, which jeopardizes our obligation towards mother earth by depleting our mountains, creating environmental hazards, deforestation on large scale to name a few. Thus we must imperatively contemplate an alternate way out to deal with this precarious menace. Amid all cognizable apparent sources of coarse aggregate, the sintered fly ash aggregate (SFA) can be considered on the cutting age holistically. The production process of SFA utilizes about 90 to 95 % of fly ash, a hazardous waste generated from thermal power stations. Thus, a meticulous evaluation of mechanical and chemical properties of SFA was required to be conducted in respect to the IS: 9142-2 (2018)[1] to establish its credentials. The study further presents the durability of concrete made with SFA, including compressive strength, splitting tensile strength, flexural strength, setting time and permeability. The obtained test results including the results of concrete durability were found to be within the standard limit.
| Item type | Current location | Call number | Status | Date due | Barcode | Item holds |
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Articles Abstract Database
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School of Engineering & Technology (PG) Archieval Section | Not for loan | 2023-0990 |
As there is ever increasing demand of coarse aggregate for construction of concrete based infrastructure in India, the Indian construction industry is encountering grave problems due to scarcity of optimum quality coarse aggregate. India as a developing country demands humongous concrete requirements wherein coarse aggregate have a crucial role to play. The coarse aggregates are generally excavated enormously from mountains, hills, stone quarries etc. and crushed into various sizes, which jeopardizes our obligation towards mother earth by depleting our mountains, creating environmental hazards, deforestation on large scale to name a few. Thus we must imperatively contemplate an alternate way out to deal with this precarious menace. Amid all cognizable apparent sources of coarse aggregate, the sintered fly ash aggregate (SFA) can be considered on the cutting age holistically. The production process of SFA utilizes about 90 to 95 % of fly ash, a hazardous waste generated from thermal power stations. Thus, a meticulous evaluation of mechanical and chemical properties of SFA was required to be conducted in respect to the IS: 9142-2 (2018)[1] to establish its credentials. The study further presents the durability of concrete made with SFA, including compressive strength, splitting tensile strength, flexural strength, setting time and permeability. The obtained test results including the results of concrete durability were found to be within the standard limit.
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