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This  work  consists  in  studying the  mechanical  behavior  of  mortars  composed  of  a  mixture  of  cement  and fire-clay. The limestone filler is used as an additive in this mixture. The main idea wasto compare this mortar with an ordinary mortar,made with a normal sand, thus,to know the limit of their use in construction.The results showed and confirmed that fire-clay mortar, cannot give better resistances than a normal sand mortar. The second idea wasto introduce the limestone filler manufactured by ENG Tlemcen (Algeria) as an addition. Theproposed percentages varied from 5% to 30% of the cement mass. The resultsobtained showed that the substitution of a part of cement by the  limestone  filler  helps to improve  the  mechanicals  resistances of  mortars and that the  best fraction  of limestone filler wasfixed at 10%.

Mechanical behavior of mortars composed of a mixture of cement and lime stone filler