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ClASSIFICATION:

Preformed foam cellular concrete blocks shall be classified into two categories:

a) Non-load bearing units - these are blocks in density ranges 800 kg/m3 and 1000 kg/m3
b) Load bearing units - these are the blocks in densit range 1200 kg/m3 to 1800 kg/m3 having grade
designations

MATERIALS

cement:- Cement complying with any of the following indian standards may be used at the discretion of the
manufacturer:
a) 43 Grade ordinary portland cement conforming to IS 8112,
b) 53 Grade ordingary portland cement conforming to IS 12269.
c) Rapid hardening portland cement conforming to IS 8041,
d) Sulphate resisiting Portland cement conforming to IS 12330
e) Portland pozzolana cement conforming to IS 1489
f) Portland slag cement conforming to IS 455