Experimental investigation on durability of concrete incorporating ground granulated blast furnace slag blends
By: Agnihotri, Anamika
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Contributor(s): Ramana, P. V.
Publisher: Mumbai ACC LTD 2022Edition: Vol.96(12), Dec.Description: 22-30p.Subject(s): Civil EngineeringOnline resources: Click here
In:
Indian Concrete Journal - ICJSummary: This paper reports on a clever inquiry regarding endeavors to make building bricks utilizing mechanical by-products and therefore the potential advantages of innovation, economy, and looking after the environment. A preparation of sample-making by employing a result of a mechanical preparation is seen as a step towards a lot of possible building development. This paper shows an experimental study of a ground granulated blast furnace slag (GGBS) based mix that was cured for seven days before being exposed to a mixed resolution of common salt (30 g/l) and sulfate (3 g/l). 2 slags with totally different chemical compositions, known as slags 1 and 2, were mixed with cement with substitution rates of 30 % and 40 %, respectively. The slump and mechanical strength of the concrete, which comprises GGBS, were studied at 3, 7, 14 and 28 days curing period. Mechanical testing of concrete samples was complemented by microstructural studies and chemical characterization of raw resources, all employing a constant w/b quantitative relation of 0.4 to analyze results of the exposed environment. Concrete samples were subjected to temperatures between 20°C and 38°C exposure conditions (to replicate temperate and tropical climates). The outcomes demonstrate that GGBS increase the freshened and hardened performance of the concrete, enhancing its mechanical qualities. Temperature includes an important effect on the sturdiness of the slag based mixture. The decrease in cohesiveness at high temperatures diode to a discount in chloride penetration early. This impact becomes less noticeable at later ages. As chloride penetration increased, it was discovered that compressive strength decreased. Scanning electron microscopy-energy dispersive X-ray (SEM-EDX)
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School of Engineering & Technology (PG) Archieval Section | Not for loan | 2023-0332 |
This paper reports on a clever inquiry regarding endeavors to make building bricks utilizing mechanical by-products and therefore the potential advantages of innovation, economy, and looking after the environment. A preparation of sample-making by employing a result of a mechanical preparation is seen as a step towards a lot of possible building development. This paper shows an experimental study of a ground granulated blast furnace slag (GGBS) based mix that was cured for seven days before being exposed to a mixed resolution of common salt (30 g/l) and sulfate (3 g/l). 2 slags with totally different chemical compositions, known as slags 1 and 2, were mixed with cement with substitution rates of 30 % and 40 %, respectively. The slump and mechanical strength of the concrete, which comprises GGBS, were studied at 3, 7, 14 and 28 days curing period. Mechanical testing of concrete samples was complemented by microstructural studies and chemical characterization of raw resources, all employing a constant w/b quantitative relation of 0.4 to analyze results of the exposed environment. Concrete samples were subjected to temperatures between 20°C and 38°C exposure conditions (to replicate temperate and tropical climates). The outcomes demonstrate that GGBS increase the freshened and hardened performance of the concrete, enhancing its mechanical qualities. Temperature includes an important effect on the sturdiness of the slag based mixture. The decrease in cohesiveness at high temperatures diode to a discount in chloride penetration early. This impact becomes less noticeable at later ages. As chloride penetration increased, it was discovered that compressive strength decreased. Scanning electron microscopy-energy dispersive X-ray (SEM-EDX)
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