Natural River Sand for plastering

RFQ Details

Grading of Sand for Internal Wall or External Wall or Ceiling Plaster

IS Sieve Designation
( See IS 460 : 1985 )

Percentage Passing
1Omm
100

75 mm
95-100
36 mm
95-100

18 mm
90-100

600 micron
80-100

300 micron
20-65

150 micron 0-15


4.3 Limits of Deleterious Materials

The maximum quantities of clay, fine silt, fine dust and organic impurities in the sand shall not exceed the following limits:

a) Clay, silt and dust
[ determined in accordance with IS 2386 ( Part 2 ) :1963 ]
Not more than 5 percent by weight

b) Organic impuriries Colour [ determined
in accordance with IS 2386 ( Part 2 ) 1963
Colour of liquid that indicated by comparison with
the standard solution 1963 ] specified in 6.2.2 of
IS 2336 ( Part 2 ) :1963



4.4 The average compressive strength, determined by the standard procedure detailed in Appendix A of IS 2250 : 1981, of mortar cubes
composed of one part of cement and six parts of sand conforming to gradation in Table 1 shall be not less than 3 N/mm2 at 28 days.

4.4.1 The amount of water for gauging shall be that required to give a flow between 110 to 115 with 25 drops in 15 seconds, as determined in
9.5.3 of IS 1727 : 1967.

The fineness modulus of sand could vary from 1.5 to 2.2 in case of naturally occurring sands.