THE APPLICATION OF ASBUTON AND POLYMER MODIFIED BITUMEN FOR PAVEMENT MIXTURE DESIGN AT HOT AND ARID REGION
Abstract: Many of the studies
have been done in finding other alternative material in order to using as
polymer modified bitumen in asphalt mixes and Rock Asphalt on improvement its
properties, highway quality And increase the ability to withstand changes in
temperature in hot and arid regions Current rapid increases in traffic volume
and legal weight increased loads on the road structure Different temperatures
will make the asphalt less resilient to stresses inflicted It could reduce the
service life and increase the cost of maintenance of the road. The mechanical
properties of the asphalt paving mixtures were characterized at three testing permanent
deformation, fatigue and cracking that is forcing engineers to consider these
issue attempts to improve the quality and characteristics of asphalt pavement
using additives. Many of the studies have been done in finding other
alternative material in order to using as polymer modified bitumen in asphalt
mixes and Rock Asphalt on improvement its properties, highway quality And
increase the ability to withstand changes in temperature in hot and arid
regions.
In this study, the laboratory works can be divided into three stages: The
First Stage, make tests in the laboratory on the following Aggregate materials,
to know the physical properties and the possibilityknow their physical
properties and specifications. The Third Stage, a total of 108 samples prepared
from Asphalt (60/70 pen), ASBUTON and Polymer Modified Bitumen (Starbit E-55)
all of them separately. Including Marshall Stability T of their use in the
mixture. The Second Stage, make tests in the laboratory on the following
bituminous materials: Asphalt 60/70 pen, ASBUTON and Polymer Modified Bitumen
(Starbit E-55) all of them separately, to est (MS) to get OBC, (UCS), (ITS)
with at (30ºC, 40ºC, 60ºC) and Permeability Test. The objective of that is a
comparing the results of laboratory tests to know the best stable and resilient
material at different temperatures.
In comparison with the results of Marshall Test, it is noticed that
Starbit E-55 mixture was more stable than Asphalt 60/70 pen and ASBUTON
mixtures; the density of the Asphalt 60/70 pen mixture was higher than the density
of the Starbit E-55 and ASBUTON mixtures respectively. The results of
Permeability test shows that the Asphalt 60/70 pen mixture was less permeable
than Starbit E-55 and ASBUTON mixtures respectively. The result of ITS and UCS
test shows that Asphalt 60/70 pen mixture was higher performance than Starbit
E-55 and ASBUTON mixtures at (30°C). Asphalt 60/70 pen mixture was less
sensitive to temperature changes compare with Starbit E-55 and ASBUTON mixtures
Keywords: AC , Asphalt 60/70
pen, ASBUTON, PMB ( Starbit E-55), ITS test & UCS test @ (30 ºC , 40 ºC ,
60 ºC), permeability test
Journal Code: jptsipilgg140008
