Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Ya. N. Kovalev"'
Publikováno v:
Наука и техника, Vol 20, Iss 6, Pp 493-498 (2021)
Abstract. Currently the Republic of Belarus is solving the problem of processing a by-product – phosphogypsum, formed in the process of phosphorric acid production. The issue of utilization of phosphogypsum is becoming more and more relevant, and t
Externí odkaz:
https://doaj.org/article/32b1778b58ca4debab0a73d4162b3163
Publikováno v:
Наука и техника, Vol 20, Iss 5, Pp 449-454 (2021)
The possibility of using local materials in the construction of structural layers of pavement is considered in the paper. The paper presents a method of technical and economic analysis, for which it is necessary to know the calculated deformation mod
Externí odkaz:
https://doaj.org/article/93156c275a6b431fa0f5f833c1dc9d0f
Publikováno v:
Наука и техника, Vol 20, Iss 3, Pp 216-223 (2021)
The design of road surfaces involves application of a sophisticated algorithm system based on mathematical calculations and engineering solutions, with the calculation of evaluation criteria. It is precisely the observance of the standardized require
Externí odkaz:
https://doaj.org/article/6d295672eedd48299a901566d1dc3e63
Publikováno v:
Наука и техника, Vol 19, Iss 3, Pp 230-240 (2020)
There are several methods for prevention of winter slippery on the roads – frictional, thermal, chemical, combined and structural. The friction method of combating slippery has found quite wide application. The method is based on increasing a wheel
Externí odkaz:
https://doaj.org/article/62a2c1b1feed4862a9eb52dfe22a96af
Autor:
Ya. N. Kovalev, D. Yu. Alexandrov
Publikováno v:
Наука и техника, Vol 18, Iss 4, Pp 269-273 (2019)
A problem of efficient resource usage in road branch continues to be one of the most complicated issues and requires an intensification in investigation process pertaining to possibilities for production of road construction materials of low resource
Externí odkaz:
https://doaj.org/article/6143206d5d20444bad0e22ce35de2eb3
Autor:
M. K. Pshembaev, Ya. N. Kovalev
Publikováno v:
Наука и техника, Vol 17, Iss 6, Pp 497-501 (2018)
Assuming that there are perpetual roads solution of the problem pertaining to strength and longevity of road concrete pavements are mainly determined by theoretical prerequisites which are considered as basic ones in technology for strengthening micr
Externí odkaz:
https://doaj.org/article/bb15925995ea4b7599aa747f8ef8abfd
Autor:
M. K. Pshembaev, Ya. N. Kovalev
Publikováno v:
Наука и техника, Vol 17, Iss 2, Pp 95-99 (2018)
Disadvantages of road concrete pavement quite well known professionals-standards. They were mainly low elasticity modulus asphaltic concrete, as well as a fairly rapid aging of asphalt concrete core component-bitumen. And, as a consequence, is relati
Externí odkaz:
https://doaj.org/article/891caf3d06e64bf8a8b2c74d7823d83f
Publikováno v:
Наука и техника, Vol 16, Iss 4, Pp 282-288 (2017)
While being operated auto-road pavements are subjected to intensive mechanical impacts, ultraviolet ray irradiation, freeze-thaw temperatures, freezing and thawing, drying and moistening. Due to these actions various types of pavement distresses appe
Externí odkaz:
https://doaj.org/article/4875c5fc825548b38caf73dbe7cfecbb
Autor:
Ya. N. Kovalev
Publikováno v:
Наука и техника, Vol 15, Iss 6, Pp 451-459 (2016)
Value of adhesion bond between mineral surface of acid quartz materials and organic binder (bitumen) has a great significance while forming structure of asphalt concrete strengthening. It has been established theoretically and experimentally that tha
Externí odkaz:
https://doaj.org/article/3da92d0e7ce04fa6970a7b8af5e0cb1a
Publikováno v:
Наука и техника, Vol 15, Iss 4, Pp 265-270 (2016)
Concrete coatings of road traffic highways along with operational loadings caused by flow of traffic are subjected to weather and climate impacts. These are the following impacts: changes in temperature and air humidity, solar radiation,surface wind
Externí odkaz:
https://doaj.org/article/bb9688e4f79b43eda7ad0055be329411