Study the effect of source of Portland cement in compressive strength (COPERESION STUDY)

الملخص

Abstract: As it is known, ordinary Portland cement is the basic material in the concrete industry, and the quality of cement is very important in producing concrete according to the required specifications, given the desire among citizens and companies to use certain types of cement in addition to the discrepancy in prices, and this indicates doubts about the quality and specifications of some types of manufactured cement Locally or imported, and in order to give confidence to the consumer, we had to conduct a comparative study between cement manufactured locally in the factories of (Al-Ittihad Al-Arabi - Souk Alkhamis - Almargab) and imported from (Turkey-Tunisia), as these types are the most consumed, especially in the western region of the country. The aim of this The study is to verify the extent of the effect of cement production sources on the compressive strength property of concrete, which is the most important property, whereby a concrete mixture was designed to achieve pressure resistance (25Mpa) and the use of the same proportions for the components of the concrete mixture (coarse aggregate - sand, water) from the same source and the only variable for each mixture is Cement has been tested for slump and (6 cubes) for each mixture are prepared. (3 cubes) are tested to determine the compressive strength after (7 days), and (3 cubes) to determine the compressive strength after 28 days. It turns out that the variation in the pressure resistance after (28 days) is simple. Between each of the cements of the Arab Union, Souk Al-Khamis, Turkish Falcon and Tunisian Kairouan Cement, while Al-Margab Cement and Tunisian Central Mountain Cement did not achieve the target of the mixture.