PROPERTIES OF CONCRETE USING "ATILE" SEEDS AS COARSE AGGREGATE
PROPERTIES OF CONCRETE USING "ATILE" SEEDS AS COARSE AGGREGATE
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Date
1996-07
Authors
YAKUYIYA, ALHAMDU SHEYIN
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Abstract
This thesis is an investigation into the properties of
concrete using "Atile" seeds as coarse aggregate.
The work involves the prior determination of the physical
properties of the "Atile" seeds in the laboratory, e.g. specific
gravity, absorption rate, bulk density, moisture content, voids
ratio, porosity, etc. using standard methods of determination of
these properties as given by Orchard (1962), Neville (1981), and
Murdock and Brook (1984), and mix design.
The properties of concrete investigated are compressive
strength, resistance to abrasion as compared with normal concrete,
cost comparison of units of "Atile" concrete and normal concrete,
Modulus of Elasticity, bond, and split tensile.
The compressive strength was determined at ages of 7, 14, and
28 days of curing while all others (except for the cost comparison
of units) were determined at 28 days of curing.
The compressive strength tests gave a range of 10.15N/mm to
18.27N/mm characteristic strength making it suitable for both
structural and plain concrete construction.
For the resistance to abrasion, the concrete produced of
"Atile" eroded almost 2.5 times the normal concrete. The relatively
low cost of the "Atile" was offset by the high cement content
needed.
The Modulus of Elasticity ranges from 4.10kN/mm2 to
10.12kN/mm2, i.e. about 17% to 28% of that of the normal concrete.
This low value of the Modulus of Elasticity makes this type ofconcrete suitable for resisting impact loads. The rich mix provided
the greatest bond with both deformed and plain bars than the
relatively weaker mix. The split tensile tests gave results ranging
from 4% to 7% of the compressive? strength of the same mix at 28
days of age
Description
BEING A THESIS SUBMITTED TO THE
POSTGRADUATE SCHOOL, AHMADU BELLO
UNIVERSITY, ZARIA, IN PARTIAL
FULFILLMENT OF THE REQUIREMENTS
FOR THE AWARD OF M.Sc. DEGREE IN
CONSTRUCTION TECHNOLOGY.
AHMADU BELLO UNIVERSITY,
FACULTY OF ENVIRONMENTAL DESIGN,
DEPARTMENT OF BUILDING,
Z A R I A .
JULY, 1996
Keywords
PROPERTIES,, CONCRETE,, ATILE",, SEEDS,, AGGREGATE, COARSE,