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The Research of Cold Recycling Asphalt Pavement Materials Stabilized by Cement of Semi-Rigid Base

Author: WuFaMao
Tutor: ChenZhongDa
School: Chang'an University
Course: Road and Railway Engineering
Keywords: Asphalt Pavement Semi-rigid base The cement cold renewable materials Mechanical Properties The mix design Road performance Cement dose
CLC: U414
Type: Master's thesis
Year: 2011
Downloads: 84
Quote: 0
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Abstract


Our road has been poured into the maintenance period , a year will generate a lot of waste asphalt pavement material , waste asphalt pavement materials recycling more and more attention has been paid to become the road researchers and engineers solved this It is very necessary to carry out the old asphalt pavement material cement cold recycling technology research . In this paper, environmental scanning electron microscopy XL30ESEM a the cement cold renewable material microstructure or the microstructure was observed under high magnification , the strength of the formation mechanism of the cement cold recycled materials ; traits of the old asphalt pavement materials analysis , to carry out the cement cold recycling the design study of the composition of the material , including the new aggregate dosage should be controlled at about 15% , cement dose of 4% to 5% . Unconfined compressive strength , splitting strength and compressive resilience modulus mechanical properties , its strength with cement dose through a lot of tests , in-depth study of cement cold recycled aggregate specimens , new aggregate dosage , age and test temperature variation , and to establish the relationship between the various indicators ; led him to study the stability of the cement cold recycled aggregate water stability and frozen , anti-erosion properties , temperature shrinkage performance and drying shrinkage properties. Study mechanical strength , modulus of resilience and stability of the cement cold regeneration lime soil , the to proposed the the the cement cold recycled aggregates and cement cold renewable lime soil 's structure design parameter values ??. Vibration molding method to study the mechanical properties of the cement cold recycled aggregate and road performance , the results show that the vibration molding method cement cold recycled aggregate unconfined compressive strength than the static pressure method forming high 17% to 24% splitting the intensity average increase of more than 20% , and also improved road performance . According to the characteristics of the cement cold renewable materials technology , combined with the test road , the construction process of the cement cold recycled materials , analysis of the economic and social benefits of recycled materials for cement cold . Has a guiding role in the promotion and application of research results on the cement cold recycled materials .

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