durability

Aim. In the study learning trial was made to make a mathematical model of the assembling process in connections “tungsten carbide insert cutter – cone”, while the methods of mathematical statistics were applied. This makes it possible to determine the parameters of the distribution of the closing link. Accordingly, the tension is determined by samples of constituent links. For this purpose, the amount of tension was investigated.

Reinforced concrete structures are often subjected to various negative environmental influences, reducing their reliability and durability. Main engineering tasks include extension of their life cycle, assessment of durability, reliability and residual service life. This requires reliable assessment of existing damages due to negative environmental impacts. Deterioration of RC structures is complex issue, which should be considered with the account of various factors.

The new method determination parameters hardening of portland cement is offered in the article.

The results of tests of embedded details with the different types of anchors at an action of shear force are described, and theoretical foundation of their interactions with concrete basis.

Mathematical model of asphalf carpet wavefornation and example of calculation bearing capacity of flu top layer of asphalt pavement against wave formation on areas of heavy braking traffic was described.