EVALUATING THE PROPERTIES OF MASONRYBLOCKS BOUND WITH BITUMEN
Abstract: This
paper covers investigation
which was carried
out in the
United Kingdom (UK), where utilization of waste materials in building
industry had been encouraged in line
with the UK
government strategy to
reduce waste disposal
to landfill. The investigation
was about building
block named as
Masonryblock, a masonry building
block material that
incorporates waste materials,
namely steel slag, crushed glass,
and coal fly ash, bound with bitumen (asphalt). The binder used was 50
pen bitumen. The
materials were hot
mixed, statically compacted
then cured at 200°C
for 24 hours.
The main properties
of the blocks
evaluated were compressive strength,
creep and volume
stability due to
moisture and thermal exposure. It
was found that
the Masonryblock compressive
strength was comparable or
even can exceed
the compressive strength
of concrete block commonly used
in the UK
(2.8-10 MPa), and
can satisfy creep
strain < 100 microstrain. The
volume stability of the Masonryblock
was found affected
by moisture exposure. The samples expanded due to higher relative
humidity and vice versa. On thermal
exposure the samples
expanded and the
expansion was found highly
reversible. The Masonryblocks
gave coefficient of
thermal expansion comparable to
clay bricks.
Author: I Nyoman Arya
Thanaya
Journal Code: jptsipilgg100002
