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The paper presents the research results of high performance modified concretes with complex hydrophobization modifiers and hydrophobic tragers. It is known that the concrete durability largely depends on its filtering characteristics, which can be lowered by adding hydrophobization additives to the concrete compositions, which, in turn, reduce the concrete strength and raise the concrete creep. The objective of the research was to develop a method of concrete hydrophobization without reducing its strength by applying hydrophobic water insoluble organic-and-mineral tragers. The paper provides the compositions of developed complex hydrophobization additives and water insoluble organic-and-mineral tragers. The influence of hydrophobization modifiers on the concrete workability has been studied as well. It was proved that complex hydrophobization modifiers allow producing high-mobility concrete mixtures and reducing their water separation value by 15…20% providing high preservation of concrete mixtures. The cube and prism strength values for concretes with modifiers are by 15…20% higher as compared to the concrete without additives. It was proved that the creep flow for all examined modified concrete samples was by 10…20% higher, and the concrete creep had damped characteristics. It was shown that the use of complex hydrophobization modifiers may reduce the water absorption as well as the capillary infiltration effect in concrete by 3…3.5 times. The concrete waterproofness is considerably improved as well; the waterproofness grade is almost 3 levels higher as compared to the concrete without additives

Highly Effective Water-repellent Concrete with Improved Physical and Technical Properties