Product specifications
- block type : Hollow block
- dimensions : 12*20*40
- average block weight : 12kg
- average dry density (kg/m3) : >= 1200 ( gross area)
- average dry shrinkage : Max 0.065%
- average water absorption : Max 208 kg/m3
- average compressive strength (at 28 days) : Non loadbearing 60kg/cm2 - loadbearing 130kg/cm2
- units : 1000 block
