WHAT IS THE GRADING REQUIREMENT OF SAND FOR USE IN MASONRY MORTAR?

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The sand which is used in mortar can be natural sand, or crushed stone sand or crushed gravel sand. Sand or fine aggregate which is used in concrete is somewhat different from sand which is used for masonry mortar. The role of sand in mortar is to give the following properties such as

  • Strength
  • Workability
  • Water retentivity
  • Volume change
Grading Limit of Masonry Sand
Grading Limit of Masonry Sand

Grading Limit

The particle size distribution of sand for use in masonry mortar should be within the limits as given in the following table.

Particle Size Percentage of Passing
4.75 mm 100
2.36 mm 90 – 100
1.18 mm 70 – 100
600 micron 40 – 100
300 micron 5 – 70
150 micron 0 – 15

 

If the sand does not conform to grading limit as specified above, then by combining it with other sand we can get the desired grading.

Reference

IS:2116-1980- Specification for sand for masonry mortar

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