A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Field and Laboratory Study of the Effects of Water Pumping Beneath Concrete Pavement Slabs
Water pumping beneath concrete pavement slabs is considered to be a major cause of concrete pavement failure. The objectives of the work were to determine typical water pressures and velocities during pumping in the laboratory and the field and to determine the effects of pressure, velocity, thermal movement, and dynamic loading on erosion beneath the concrete slab. The location of the water pumping is between the bottom of the concrete pavement slab and the subbase. Laboratory tests indicated that high pressures beneath the second slab and suction pressures beneath the first slab induced water velocities opposite to the direction of vehicle motion. Field tests on I-10 in Florida revealed pressure differences as high as 10 psi which produced velocities up to 1 m/s in a direction opposite to vehicle motion.
Field and Laboratory Study of the Effects of Water Pumping Beneath Concrete Pavement Slabs
Water pumping beneath concrete pavement slabs is considered to be a major cause of concrete pavement failure. The objectives of the work were to determine typical water pressures and velocities during pumping in the laboratory and the field and to determine the effects of pressure, velocity, thermal movement, and dynamic loading on erosion beneath the concrete slab. The location of the water pumping is between the bottom of the concrete pavement slab and the subbase. Laboratory tests indicated that high pressures beneath the second slab and suction pressures beneath the first slab induced water velocities opposite to the direction of vehicle motion. Field tests on I-10 in Florida revealed pressure differences as high as 10 psi which produced velocities up to 1 m/s in a direction opposite to vehicle motion.
Field and Laboratory Study of the Effects of Water Pumping Beneath Concrete Pavement Slabs
E. C. Hansen (author) / R. Johannesen (author)
1989
210 pages
Report
No indication
English
Construction Equipment, Materials, & Supplies , Highway Engineering , Concrete slabs , Concrete pavements , Failure , Water pressure , Pavement bases , Pumping , Water flow , Flow rate , Velocity measurement , Field tests , Mathematical models , Dynamic loads , Erosion , Motor vehicles , Motion , Expansion , Cracks , Florida , Graphs(Charts)
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