ABSTRACT
A survey of concrete practice on selected construction sites in Nigeria has been undertaken. It was aimed at establishing whether or not good concrete practice is being followed. Fifteen sites were Investigated to review the following- storage of dry materials, transportation modes, mix design and mixing practice of concrete and the background training of the operatives. The following results were obtained: The storage facilities on sites are poor as compared to claims in questionnaires, the use of traditional method of transportation of materials was observed on the sites contrary to claims in the questionnaires, no standard method of measurement for materials in the production of concrete was observed and operatives were found to have no background training before they are put to work. The experiment carried out on concrete samples taken from sites showed a general low strength.