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
The particle size distribution of sand for use in masonry mortar should be within the limits as given in the following table.
Percentage of Passing
90 – 100
70 – 100
40 – 100
5 – 70
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.
IS:2116-1980- Specification for sand for masonry mortar