| Summary: | 博士 === 國立中央大學 === 土木工程學系 === 85 === The purpose of this study is to characterize the effect of
fillers to the viscoelasticity and the interfacial adhesion
property of asphalt concrete. The testing materials are: the
60/70 penetration straight asphalt and the fillers of baghouse,
fly ash , Portland cement, hydrated lime and limestone, then
testing the properties of both asphalt binders and asphalt
concrete under different filler/asphalt ratio. Evaluation of
fillers is based on their physical properties, chemical
components and mineral components. Meanwhile also measuring the
rheological and adhering properties of asphalt binders; the
former includes three important factors of time, temperature and
filler particle size, while the latter includes the stripping
properties and the adhesion of asphalt binders. In the
asphalt concrete test, it''s made the specimen by GTM, then
conduct the creep test and dynamic test to characterize the
effects of fillers to the viscoelasticity of asphalt concrete;
meanwhile make specimen curing by Artificial Environmental
Conditioning System (AECS), then employ the indirect tensile
resilient modulus test to measure the effects of fillers to the
stripping of specimens. Finally it''s performed the rutting test
to characterize the influence of fillers to the rutting of
asphalt conrete. The results indicate that the hydrated lime
can increase the rheological behavior of asphalt binders, such
as arising the viscosity and complex shear modulus, but decrease
the creep compliance and the phase angle. As the hydrated lime
can produce the silicate which is adhesive, that it''s good for
the interfacial adhesion properties of asphalt binders. And it''s
indicated from the viscoelasticity and adhesion properties of
asphalt concrete which contains hydrated lime that the hydrated
lime can not only Regarding the limestone, as it has less
effects to both the rheological, adhesing properties of asphalt
binders and the adhering properties, the viscoelastic behavior
of asphalt concrete, thus it''s not applicable to the rainy
Taiwan area where the pavement is easy to be stripping under the
wet climate. While the Portland cement can''t provide large
effect to both the rheological properties of asphalt binders and
the viscoelastic behavior of asphalt concrete, but as it''s
pretty active that it has large influence to the adhesion
properties of both asphalt binders and asphalt concrete.
Regarding the baghouse, it will have different effect according
to its physical and chemical properties.
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