GYPSUM ROCK

BUILDON Gypsum Rock is supplied in various sizes. We have a sophisticated gypsum stone crushing plant capable of producing sized and graded gypsum across the region. With Rich gypsum deposits and expertise of the man power, extensive utilization of its own latest mining equipment, marine & land transport fleet plus trading capabilities inside and outside the country has made possible for us to extend ourĀ  supply activities into countries situated at the southern coastal region of the Persian Gulf, Africa, and India.

Report of Tests

Chemical Analysis

Test Method: ASTM C 471 / C 471 M

Constituent Results (% by weight)
Sulphur Trioxide SO3
Chloride as sodium chloride Cl as NaCl
Calcium oxide CaO
Magnesium oxide MgO
Carbon dioxide Co2
Iron oxide Fe2O3
Aluminium oxide A12O3
43.4
0.01
32.3
1.21
1.26
0.11
0.08
Free Water 0.21
Combined Water 19.3
Gypsum 92.2
Calcium Carbonate (CaCO3) 3.43
Magnesium Carbonate (MgCO3) 2.53
Colour White
pH Value (1:5 water extract) 9.0

PARTICLE SIZE DISTRIBUTION OF GYPSUM

Test sieve size (mm) Percentage (by weight)
Retained Passing
63.0 0 100
50.0 3 97
37.5 9 88
25.0 16 72
19.0 9 63
12.5 12 51
9.5 6 45
6.3 8 37
4.75 4 33
3.35 4 29
2.36 3 26
1.18 4 22
0.600 3 19
0.425 2 17
0.212 4 13
0.150 2 11
0.075 4 7
0.045 3 4

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