Fly Ash Brick Performance

posted Oct 15, 2009, 7:59 AM by sitestemplatedata@gmail.com   [ updated Apr 16, 2010, 4:03 AM by Manish Gupta ]

Fly Ash Brick Performance Comparison

FAB performance versus clay brick and concrete brick (at a glance), based on modular size:


Brick TypeFly Ash Brick (FAB)Clay BrickConcrete Brick
Embodied energy0.89 – 1.31 MJ
(850 – 1,250 BTUs)
9.3 MJ
(8,800 BTUs)
1.3 MJ
(1,240 BTUs)
CO20.11 kg
(0.25 lbs)
0.59 kg
(1.3 lbs)
0.34 kg
(0.53 lbs)
Recycled material40%.
No CO2-intensive cement is included in our products.
0 – 6%.
Energy intensity of the product remains unchanged.
Not typical.
Where fly ash or slag is substituted for up to 30% of cement, this represents only about 5% of total product weight.
Installed performanceShrinkage substantially less than 0.065%No shrinkageShrinkage no more than 0.065%
Dimensional consistencyVery consistentVaries
(based on firing)
Very consistent
Initial Rate of Absorption
(1 – 14 g/30in”/min)
1 – 142 – 30> 25




CONTACT: Mr. Amit Gupta    M: 98100 63596, 99714 30666