Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Environmental Effects on Pavements. Volume 4. Drainage Manual
The rate of deterioration of pavements nationwide has reached significant and, in some cases, alarming proportions. One of the major causes of deterioration is the effect of water in pavements. Traffic loads act on water trapped in base courses and subgrades to cause rutting, pumping, alligator cracking, and other major forms of pavement distress. The proper drainage of base courses can prolong, and in some cases, double the life of a pavement. The report presents a method of computing the amount of rain water that penetrates into a pavement through cracks and joints, and subsequently the rate of drainage out of the base course into the subgrade and into lateral drainage. The method presented is a major advance over methods that have been used previously for the same purpose. The method consists of five parts: (1) estimation of the amount of rainfall that falls each day on a pavement; (2) the infiltration of water through the cracks and joints in the pavement; (3) the computation of the simultaneous drainage of water into the subgrade and into lateral drains; (4) the dry and wet probabilities of a pavement; and (5) the effect of changing water contents on the moduli of base courses and subgrades.
Environmental Effects on Pavements. Volume 4. Drainage Manual
The rate of deterioration of pavements nationwide has reached significant and, in some cases, alarming proportions. One of the major causes of deterioration is the effect of water in pavements. Traffic loads act on water trapped in base courses and subgrades to cause rutting, pumping, alligator cracking, and other major forms of pavement distress. The proper drainage of base courses can prolong, and in some cases, double the life of a pavement. The report presents a method of computing the amount of rain water that penetrates into a pavement through cracks and joints, and subsequently the rate of drainage out of the base course into the subgrade and into lateral drainage. The method presented is a major advance over methods that have been used previously for the same purpose. The method consists of five parts: (1) estimation of the amount of rainfall that falls each day on a pavement; (2) the infiltration of water through the cracks and joints in the pavement; (3) the computation of the simultaneous drainage of water into the subgrade and into lateral drains; (4) the dry and wet probabilities of a pavement; and (5) the effect of changing water contents on the moduli of base courses and subgrades.
Environmental Effects on Pavements. Volume 4. Drainage Manual
R. L. Lytton (Autor:in) / S. J. Liu (Autor:in)
1985
185 pages
Report
Keine Angabe
Englisch
NTIS | 1992
| NTIS | 1984
Drainage of wide road pavements
| Engineering Index Backfile | 1968