Trr No. 1323 Materials And Construction, pp. 53-60 The use of the Corbett-Swarbrick fractionation procedure for characterization of age-hardening potentials of asphalts was studied. The fractionation procedure was used to separate asphalts into four different fractions (asphaltenes, saturates, naphtene-aromatics, and polar-aromatics), to identify trends in the changes of proportions of these…
ASTM STP 675 Fatigue mechanisms
Geo Support 2004 Drilled Shafts, Micropiling, Deep Mixing, Remedial Methods, And Specialty Foundation Systems - Geotechnical Special Publication 124
The dynamic loads imposed by moving vehicles have variations in load magnitude due to the surface roughness of the pavement system and larger dynamic loads than the design loads can affect the pavement performance and life. The purpose of this study was to find the relationships among the pavement surface roughness, variations in moving dynamic vehicle loads, and the performance of the concrete…
LOKASI: Ruang Koleksi Umum Rak 3
Based on the mining case of Dafosi Coal Mine in Shaanxi Province, which is a typical coal mine with extra-thick coal seam, the effects of mining width, buried depth and rock grade on the ground surface deformation and sur-rounding rock stress have been studied by numerical experiments. It is found that both of the ground surface settlement (SS) and Horizontal Displacement (HD) increased with th…
Ground subsidence caused by tunneling is becoming a common problem in China due to rapid developing of underground space. Superstructures may crack and/or incline subjected to localized ground subsidence caused by tunneling. Ground subsidence would also induce breackage of buried pipelines which may even cause ground collapse due to pipe leakage. Mechanism of ground subsidence caused by tunneli…
To reveal the reason for moisture condensation of an I-shaped pedestrian underpass in the summer, which is widely constructed in many large southern cities of China, its ventilation effect was investigated under a hot, rainy, and humid climate condition. Through in situ monitoring of the Yuejiazui I-shaped pedestrian underpass in Wuhan City, China, some internal environment parameters, such a…