Sharif Digital Repository

In massive construction projects such as construction of high-rise buildings, bridges, and concrete pavements, engineers strive to set up an on-site concrete batching plant; however in most cases, due to the lack of space availability, it is not possible to do so.Therefore, in order to procure high quality concrete, ready mixed concrete suppliers are sought. The notable management point is the distance between the ready mixed concrete plant and the construction site. The investigations show that the increased hauling time of ready-mixed concrete could significantly influence the quality of produced concrete. This issue is of more importance in the urban areas (e.g Tehran) as the traffic...