Development of a new cementations material eco-friendly of the environment: Study of physical and mechanical properties

In this work new material,durable cement based on the different percentages of pure limestone (p,lime) and super plasticizer has been developed,partially substituting the clinker by this material in finely ground powder form. the influence of the incorporation of p,lime on the physical chemical characteristics of cement (finesse by specific surface blaine and density),on the physical properties of the cement paste (setting time and water content) and on the mechanical performance (compressive strength) of mortar and/or concrete to hardened state has been evaluated.the obtained results by different methods of physical,chemical analysis showed that,the adding of p. lime in cement increases the fineness. in more its density is decreased. we observed that,the setting time increases in function on the addition of p,lime in the cement matrix. similarly,the mechanical resistance to compression at a young age (2 days),median age (7 days) and long term (28 days) improve as a function of the increase in p,lime. most of these improvements,the addition of p,lime in the formulation of the cement allowed us also to minimize the emission of co2 in the atmosphere on the one hand and win percentages of energy and raw materials consumed on the other. © 2017,university of mohammed premier,oujda morocco.