A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Permeability and Stability of Base and Subbase Materials
This study determined the hydraulic conductivities, effective porosities and resilient moduli of several current and proposed drainable base materials. The materials studies were AASHTO No. 57, AASHTO No. 67, ODOT No. 304, ODOT No. 310, Iowa DOT No. 41-21 ('IA mix') and the 'New Jersey mix' studied by Baumgartner (1992). An in situ hydraulic conductivity test was developed for coarse grained materials under existing pavements. This device was tested on test sections of St. Rte. 2 for drainable bases composed of asphalt and Portland cement stabilized AASHTO No. 57, ODOT No. 304, ODOT No. 310, Iowa DOT No. 41-21 and the New Jersey mix. A large scale, horizontal laboratory permeameter and testing procedure were developed to simulate in situ conditions under a pavement. This was used to determine the range of hydraulic conductivities and effective porosities of several drainable bases made up of gravel, limestone and air cooled blast furnace slag over the range of gradations permitted by their specifications. The specifications studied were AASHTO No. 57, AASHTO No. 67, ODOT No. 304, ODOT No. 310, Iowa No. 41-21 and the New Jersey mix. AASHTO No. 57 and AASHTO No. 67 were also stabilized with asphalt or Portland cement and tested.
Permeability and Stability of Base and Subbase Materials
This study determined the hydraulic conductivities, effective porosities and resilient moduli of several current and proposed drainable base materials. The materials studies were AASHTO No. 57, AASHTO No. 67, ODOT No. 304, ODOT No. 310, Iowa DOT No. 41-21 ('IA mix') and the 'New Jersey mix' studied by Baumgartner (1992). An in situ hydraulic conductivity test was developed for coarse grained materials under existing pavements. This device was tested on test sections of St. Rte. 2 for drainable bases composed of asphalt and Portland cement stabilized AASHTO No. 57, ODOT No. 304, ODOT No. 310, Iowa DOT No. 41-21 and the New Jersey mix. A large scale, horizontal laboratory permeameter and testing procedure were developed to simulate in situ conditions under a pavement. This was used to determine the range of hydraulic conductivities and effective porosities of several drainable bases made up of gravel, limestone and air cooled blast furnace slag over the range of gradations permitted by their specifications. The specifications studied were AASHTO No. 57, AASHTO No. 67, ODOT No. 304, ODOT No. 310, Iowa No. 41-21 and the New Jersey mix. AASHTO No. 57 and AASHTO No. 67 were also stabilized with asphalt or Portland cement and tested.
Permeability and Stability of Base and Subbase Materials
B. W. Randolph (author) / A. G. Heydinger (author) / J. D. Gupta (author)
2000
190 pages
Report
No indication
English
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