Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Highway Research Report: Bridge Deck Membranes, Evaluation and Use in California
Laboratory tests used to screen bridge deck membranes are (1) tension on the cracking bridging; (2) puncture or ability to withstand paving operations, and (3) bending or cold temperature ductility with and without heat aging. None of the tests, however, are known to be related to the service life of the membrane. Results of comparing field and laboratory tests are given. It was found that a 240F asphalt concrete pavement could cause a rise in temperature of the membrane to about 170F for approximately 3 minutes. However, windrowing of the pavement was found to melt some membranes due to the long term sustaining of high temperature. Tests were made using the electrical resistance method as an indicator or impermeability of a membrane. It was found that the electrical resistance will vary with time. The mathematical relationship between resistance and time is given for eight field tests.
Highway Research Report: Bridge Deck Membranes, Evaluation and Use in California
Laboratory tests used to screen bridge deck membranes are (1) tension on the cracking bridging; (2) puncture or ability to withstand paving operations, and (3) bending or cold temperature ductility with and without heat aging. None of the tests, however, are known to be related to the service life of the membrane. Results of comparing field and laboratory tests are given. It was found that a 240F asphalt concrete pavement could cause a rise in temperature of the membrane to about 170F for approximately 3 minutes. However, windrowing of the pavement was found to melt some membranes due to the long term sustaining of high temperature. Tests were made using the electrical resistance method as an indicator or impermeability of a membrane. It was found that the electrical resistance will vary with time. The mathematical relationship between resistance and time is given for eight field tests.
Highway Research Report: Bridge Deck Membranes, Evaluation and Use in California
D. L. Spellman (Autor:in) / R. F. Stratfull (Autor:in)
1973
16 pages
Report
Keine Angabe
Englisch