Abstract
Background/Objective: To review on the river sand supplants particularly Manufactured sand (Msand) and Ferrochrome slag (FeCr slag) aggregate in concrete and mortar matrix. Methods: A study on FeCr slag as sand is skimpy and countable; so here they clustered together and discussed for its performance. Msand by its shape, texture, physiochemical characters, strength parameters and durability is much similar to river sand in a concrete matrix. FeCr slag shape and texture is almost similar but porous in nature and ingredients like MgO and Cr2O3can cause an effect on concrete. Msand based on various grades and mechanical strength is analysed. Findings: Msand strength behaviour is discussed in detail with reference to other authors which clearly states that Msand is ideal for fine aggregate replacement. Industrial waste FeCr slag is replaced instead of sand, which also behaves well until 40% to 50% replacement of sand at later ages of strength. Compressive strength, splitting tensile strength and flexural strength of these two materials are graphically depicted from a literature surveys of recent researches. Novelty: This study provides robust information about strength performance of Msand and FeCr slag with varying percentage ranges from 10% to 60% by weight. Keywords: Msand; ferrochrome slag; strength; compressive; splitting; flexural; river sand
Highlights
In this techno-modern world, concrete is a major composite used to develop the infrastructure like bridges, dams, commercial and residential structures
Mechanical performances like compressive, flexural strength, splitting tensile and Modulus of Elasticity are increased with 5% silica fume in a binder and 100% Manufactured sand (Msand) in HPC matrix
The conclusion of the study emphasizes that FeCr slag sand from 40% to 50% by weight replacement shows better strength performance compared to river sand. 50% of Msand gives better flexural strength results than all the other replacement
Summary
In this techno-modern world, concrete is a major composite used to develop the infrastructure like bridges, dams, commercial and residential structures. In Tamil Nadu, nearly 10 million Cubic feet sand is required per day, where the cost for 1cubic feet is 143 Indian rupees. FeCr slag is liquid in state and it is allowed to cool for a few days in wasteland and it is dumped into the larger part of eastern parts of India like Odisha and Andhra Pradesh. It occupies large dumped areas and creates a lot of nuisance for the society, these waste materials can be used in concrete instead of fine aggregate. The comprehensive view of Msand in different grades of concrete are not yet deliberated so far
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