Properties
Ennore Sand
Leighton Buzzard Sand
Ottawa Sand
1
Physical properties:
Colour
Grayish White
Light Gray
Colouriess
Specific gravity
2.64
2.65
2.63
Absorption in 24 hours
0.80%
0.30%
--
Shape of grains
Subangular
Subround
Round
II
Chemical Properties
5) Chemical analysis SiO2 Al2O3 Fe2 O3 CaO
99.30% -- 0.10% --
99.58% 0.27% 0.30% 0.22%
97.40% Traces Traces Traces
Loss on extraction with hot HCI
0.11%
0.13%
0.24%
Loss on Ignition
-
III
Pertrographic analysis:
Quartz
97.40%
Nearly 100%
Feldspar
2.50%
Traces
IV
Compressive Strength:
3 days curing
160 Kg./Sq.Cm.
105 Kg./Sq.Cm.
112 Kg./Sq.Cm.
7 days curing
220 Kg./Sq.Cm
131 Kg./Sq.Cm
125 Kg./Sq.Cm
