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Aggregator for Concrete

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Manufactured Sand as fine aggregates for Concrete& Mortars

Manufactured Sand as fine aggregate in Concrete (grades of M20, M30) and Cement mortars (ratio 1:4 and 1:6).Tests were conducted to study fresh and hardened properties of the Concrete and Mortars made with river and Manufactured Sand.

It was found that:

  • Grading limits of Manufactured Sand fell within the grading Zone-II of fine aggregates as specified in IS 383.
  • Shape of the Manufactured Sand particles resembled the shape of river sand particles.
  • Bulk density and specific gravity of Manufactured Sand were comparable to those of river sand.

Concrete

The details of the tests on concrete,

Concrete Grade Water Cement Ratio River Sand Manufactured Sand
Slump (mm) Compressive Strength (Mpa) Flexural Strength (Mpa) Slump (mm) Compressive Strength (Mpa) Flexural Strength (Mpa)
M30 0.50 80 42,20 3.90 55 44.78 4.54
M20 0.50 110 37.68 3.29 76 41.03 3.68