EFFECT OF CURING TEMPERATURE ON THE COMPRESSIVE STRENGTH OF POLYMER CONCRETE INCORPORATING...
17
Effect Of Curing Temperature On the Compressive Strength Of Polymer Concrete Incorporating Microfiller Nurhamizah Binti Meskam SX090198AWJ01 Supervisor Prof. Ir. Dr. Mohd Warid Bin Hussin
EFFECT OF CURING TEMPERATURE ON THE COMPRESSIVE STRENGTH OF POLYMER CONCRETE INCORPORATING MICROFILLER
Polymer concrete can be described as combination of binder, fine and coarse aggregates with various other fillers when required. Polymer as admixture can improve properties like higher strength and lower permeability than the conventional concrete. In this study, the properties of two types of polyester resin which is Isophthalic and Orthophtalic had been investigated in different curing temperature to get compressive strength of polyester concrete. The objective of this study is to investigate optimum curing temperature on Isophthalic and Orthophtalic polymer concrete. Three different temperatures 30oC, 50oC, 70oC at the curing times of 1 hour, 3 hour, 6 hour and 16 hour were used in the present work. The various mechanical properties like density and compressive strength of concrete have been studied according to ASTM Standards. This study also shown that the Isophthalic resin with Palm Oil Fuel Ash (POFA) particle size of 45 µm obtain the optimum curing time in 16 hour at temperature 70oC on Isophthalic with compressive strength 65 MPa.
Citation preview
IntroductionProblems statement
Objective of Study
Scope of Study
Methodology
Preliminary Study
Post Curing Process
Finding of The Study
ConclusionQ&A
Introduction
Objective of Study
Scope of StudyProblem of Statement
IntroductionPolymer concrete is produced using dry aggregates as
filler and polymerizing monomers as binders. Meanwhile the concrete
mixture especially in aggregate component must be make sure high
quality with no residual dust, moisture and contaminants.
Problem Statement
ObjectiveTo obtain density of inert granular and POFA
To investigate optimum curing temperature on Isophthalic and
Orthophtalic polymer
Scope of Study
BinderType of BinderIsophthalicOrthophthalicMix proportion13%
binder content for Isophthalic polymer concrete13% binder content
for Isophthalic polymer concreteFillerType of fillerPOFASize of
fillerPassing through 45 m sieveTestingDensityPolymer concreteSize
of sample100mm x 100mm x 100mmTesting: compressive strengthTesting:
apparent densityMethod of curingPost of curing by heat Curing
temperature ( oC)30oC, 50oC, 70oCCuring time (hour)1, 3, 6, 16
Methodology
Preliminary Study
Post Curing Process
Preliminary Study of Polymer Concrete
Post Curing Process
Finding of the Study
Apparent density of Isophthalic polymer concrete at different
curing temperatureHighest density achieved at temperature 70oCMost
of the value Density Isophthalic was acceptable Average density
value is 2250kg/m3Apparent density of Orthophthalic polymer
concrete at different curing temperatureHighest density achieved at
temperature 30oCMost of the value Density Orthopthalic was
acceptable Average density value is 2250 kg/m3
Compressive Strength of Polymer Concrete at 30oC
TemperatureRelationship PatternLinearGradually IncreasedRegression,
R2 > 0.9
Compressive Strength
i)Highest- ISO (49 MPa) ORTHO (46MPa)
ii) Lowest - ISO (1.18 MPa) ORTHO (0 MPa)
Compressive Strength of Polymer Concrete at 50oC
TemperatureRelationship PatternNon LinearStrong
relationshipRegression, R2 > 0.9
Compressive Strength
i)Highest- ISO (60 MPa) ORTHO (55Mpa)
ii) Lowest - ISO (27 MPa) ORTHO (24MPa)
Compressive Strength of Polymer Concrete at 70oC Temperature
Compressive Strength
i)Highest- ISO (65Mpa) ORTHO (59Mpa)
ii) Lowest - ISO (46 Mpa) ORTHO (37Mpa)
ConclusionAt 30oC temperature, possibility compressive strength
to be enhance will be develop if curing time increase to 24 hour.At
50oC and 70oC temperature curing time, the compressive strength is
dependable at 16 hour and do not have any possibility to enhance
the compressive strength, if curing time increase to
24hour.Compressive strength approximately constant at 6 hour for
temperature 50oC and approximately constant at curing time 3 to 6
hour in temperature 70oC.The optimum curing time obtain in 16 hour
at temperature 70oC on Isophthalic with compressive strength
65MPa.The density value for both type of polymer concrete
approximately 2250kg/m3 which is within the range of normal weight
concrete (2250kg/m3).
