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M. Othman, A., Y. Ahmed, H. (2006). EFFECT OF ACCELERATED MOISTURE DAMAGE ON CREEP COMPLIANCE CHARACTERISTICS OF ASPHALT CONCRETE MIXTURES. JES. Journal of Engineering Sciences, 34(No 2), 381-393. doi: 10.21608/jesaun.2006.110401
Ayman M. Othman; Hassan Y. Ahmed. "EFFECT OF ACCELERATED MOISTURE DAMAGE ON CREEP COMPLIANCE CHARACTERISTICS OF ASPHALT CONCRETE MIXTURES". JES. Journal of Engineering Sciences, 34, No 2, 2006, 381-393. doi: 10.21608/jesaun.2006.110401
M. Othman, A., Y. Ahmed, H. (2006). 'EFFECT OF ACCELERATED MOISTURE DAMAGE ON CREEP COMPLIANCE CHARACTERISTICS OF ASPHALT CONCRETE MIXTURES', JES. Journal of Engineering Sciences, 34(No 2), pp. 381-393. doi: 10.21608/jesaun.2006.110401
M. Othman, A., Y. Ahmed, H. EFFECT OF ACCELERATED MOISTURE DAMAGE ON CREEP COMPLIANCE CHARACTERISTICS OF ASPHALT CONCRETE MIXTURES. JES. Journal of Engineering Sciences, 2006; 34(No 2): 381-393. doi: 10.21608/jesaun.2006.110401

EFFECT OF ACCELERATED MOISTURE DAMAGE ON CREEP COMPLIANCE CHARACTERISTICS OF ASPHALT CONCRETE MIXTURES

Article 2, Volume 34, No 2, March and April 2006, Page 381-393  XML PDF (510.05 K)
Document Type: Research Paper
DOI: 10.21608/jesaun.2006.110401
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Authors
Ayman M. Othman* 1; Hassan Y. Ahmed* 2
1Civil Engineering Department, Aswan Faculty of Engineering, South Valley University, Aswan, Egypt
2Civil Engineering Department, Faculty of Engineering, Assiut University, Assiut, Egypt
Abstract
– Major pavement deterioration can be attributed to the presence of water on the pavement surface. Within this framework, this research is focused on studying the impact of accelerated moisture conditioning on pavement deterioration. This study is based on laboratory evaluation of creep characteristics and mechanical properties of asphalt concrete mixtures. This evaluation can aid in assessing the longterm stripping susceptibility and permanent deformation potential of asphalt concrete mixtures. Cement dust was incorporated in the mixture as mineral filler and compared with traditional lime stone filler. Accelerated moisture damage program was established to evaluate the mixture resistance to moisture damage. Marshall specimens were immersed in a water bath under vacuum of 510 mm of mercury (Hg) for different moisture conditioning periods of 0, 1, 2 and 7 days. A power law model was used to characterize the creep compliance behavior of the studied mixtures. Creep testing results have revealed that the creep compliance power law parameters have a strong relationship with mixture type and moisture conditioning period. The creep resistance of the studied mixtures, as indicated by the creep compliance parameters, decreases as the moisture conditioning period increases. Results also revealed an enhancement in the creep resistance, Marshall stability, indirect tensile strength and compressive strength for mixtures containing cement dust as compared to mixtures with traditional lime stone filler.
Keywords
Cement dust; Asphalt Concrete Mixtures; Moisture Damage; Creep Compliance; Marshall stability; Indirect Tensile Strength; Compressive Strength
Main Subjects
Civil Engineering: structural, Geotechnical, reinforced concrete and steel structures, Surveying, Road and traffic engineering, water resources, Irrigation structures, Environmental and sanitary engineering, Hydraulic, Railway, construction Management.
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