THE SUITABILITY OF HUSKSCRETE BLOCKS AS CONSTRUCTION UNITS
THE SUITABILITY OF HUSKSCRETE BLOCKS AS CONSTRUCTION UNITS
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Date
1992-12
Authors
MUHAMMAD, Sulaiman Mahmud
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Abstract
With the aim of developing construction units
from the waste materials from agriculture, a study
was made on how suitable Rice husks could be as an
aggregate in Building blocks making.
As far as possible the properties of Rice husks
as an aggregate were found. It has specific gravity
of 1.27, water absorption 162 percent by weight and
needs W/C of 0.65 to 0.95 to form a semi-dry mortar
for block making.
Huskscrete blocks got from mixes such as 1:4
cement/Rice husks, 1:1.25 : 3.75 cement/sand/Rice
husks were tested for crushing strength, average dry
weight, density and water absorption. Their economics
was high lighted in the cost analysis of 1M3 of mortar
for different mixes of sandcrete and huskscrete blocks.
Blocks incorporating Rice husks attained average
compressive strength of 1.8N/mm2 to 5.2N/mm2 at 28
days which is comparable to BS.6073 requirement.
To make Huskscrete blocks, more effective as
construction units, certain measures were suggested.
And the blocks are recommended for use in constructing
load and non-loadbearing walls in Nigeria especially
in areas having Rice husks in abundance
Description
A thesis submitted to the Postgraduate School,
Ahmadu Bello University, in partial fulfillment
of the requirements for the award of Master of
Science (Construction Technology)
Department of Building
Faculty of Environmental Design
Ahmadu Bello University
Zaria - Nigeria
DECEMBER, 1992
Keywords
SUITABILITY,, HUSKSCRETE BLOCKS,, CONSTRUCTION,