المساهمة في تحسين خصائص خرسانة رمل الكثبان بواسطة التصحيح الحبيبي والتعزيز بالألياف

Résumé: A lot of areas of south Algeria suffer of problem of the accumulation of sand on constructions because of the phenomenon of sand encroachment ,which cause many problems, in addition to the expensive cost to remove this sand on these facilities. Besides the these areas and other regions in Algeria suffer of the problem of the scarcity of natural sand suitable for building, we decided to use this as an alternative to sand dunes and if partially in construction to reduce these phenomenon and problems arising from them. In the context of this idea, many business and research which confirm its entirety the possibility of using sand dunes as one of the ingredients in the creation of concrete completed but only particleboard correction and it boosted his mineral fiber in order to reduce the phenomenon of deflation until the sand is valid for the manufacture of concrete. This work aims to contribute to the correction of granular sand dunes and improve the rheological properties of concrete sand dunes by the promoting mineral fiber. We have obtained a significant improvement in the pressure resistance, while the resistance to bending has exceeded half the improvement rate compared to the control concrete and improved shrinkage when adding fibers, and we have noticed that if taken care of this concrete when pouring, it has considerable durability.

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