The sand used for plaster work can be natural sand, crushed stone sand or crushed gravel sand. grading range of sand for plaster work; For interior and exterior wall and ceiling should be given in the table below.
Table of Contents
Grading range of sand for plaster work
sieve size is | pass percentage |
10 mm | 100 |
4.75 mm | 95 – 100 |
2.36 mm | 95 – 100 |
1.18 mm | 90 – 100 |
600 micron | 80 – 100 |
300 micron | 20 – 65 |
100 micron | 0 – 15 |
notes to remember
- If the grading falls outside the limits of the grading zone of the sieve (except 150, 300 and 600 micron IS sieve), the aggregate amount does not exceed 5%, it will be considered to be under gradation.
- For crushed stone sand and crushed gravel sand, the permissible limit on 150 micron IS sieve has been increased to 20%.
- The fineness modulus of sand should be as per the following table.
sand type | fineness modulus |
crushed stone sand | 1.4. not less than |
crushed gravel sand | 1.4. not less than |
natural sand | 1.5. not less than |
Reference
IS:1542-1992 – Sand for plaster – Specification
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