出版社：The International Institute for Science, Technology and Education (IISTE)
摘要：Drainage is an important feature in determining the ability of given pavement to withstand the effects of traffic and environment. While planning and executing the work the contractor shall take all adequate precautions against drainage system to keep the road free from water. Even though many roads are of poor conditions due to different reasons .Poor drainage is one of those reasons. An increase in moisture content decreases the strength of the pavement. Bad drainage causes the premature failure of the pavement. The paper discusses the various effects of bad drainage on road conditions.
关键词：Surface Drainage; Sub surface Drainage; Blockage of drains; Moisture content; Water table; Capillary rise.
