العلاقــة بـين نســب الخلــط الوزنيــة والحجميــة للخلطــات الخرســانية مـع تطــوير الجــــداول الخاصــة بتخمــين مـــواد الخرســـانة

Abstract

The concrete works are suffered from many problems like: the selection of materials used, mixing, placing, compacting and curing of concrete. These stages of manufacturing concrete affect the quality of produced concrete. Also there are many difficulties in converting the proportioning of concrete mixes by weight to the proportioning by volume. Moreover the tables used to estimate the quantities of materials needed to produce one cubic meter of concrete must be studied carefully to reduce the errors in estimation.This research aims to introduce the solution for the problems mentioned above and provide the engineer with a guide for calculations of constructional materials