Add to ORKGAbstract: The paper discusses the properties of composite binders based on cement and tuff (Kingdom of Jordan), used to obtain fiber concretes on their basis for reconstruction and construction of buildings in regions of the Middle East. The research has been made to study the effect of the method of grinding of raw materials and plasticizer on physical, mechanical and technological properties of binders, a method of "internal curing " for hardening concrete in hot climate conditions has been developed. Key words: Cement composites Fiber concrete Care of hardening concrete Hot climate Volcanic tuf