Zobrazeno 1 - 5
of 5
pro vyhledávání: '"P. I. Yukhnevskiy"'
Autor:
P. I. Yukhnevskiy
Publikováno v:
Наука и техника, Vol 20, Iss 5, Pp 420-426 (2021)
Nitrogen-containing compounds that enter concrete together with raw materials, in particular with chemical modifiers of concrete mixture and concrete, as well as those present in Portland cement, are capable of forming ammonia as a result of decompos
Externí odkaz:
https://doaj.org/article/3159db67b4a44507bf2953d546fe8f3e
Autor:
P. I. Yukhnevskiy, N. P. Dimitriadi
Publikováno v:
Наука и техника, Vol 18, Iss 4, Pp 303-310 (2019)
The paper substantiates scientific background for development of lubricant compositions used in moulds for concrete products with high-quality surface. It has been shown that consideration of interaction between air bubbles, lubricant and liquid phas
Externí odkaz:
https://doaj.org/article/4b9f4368794d49c2b926434352d83e47
Autor:
P. I. Yukhnevskiy
Publikováno v:
Наука и техника, Vol 17, Iss 2, Pp 142-145 (2018)
Chemical additives are widely used in the technology of concrete with the purpose to solve various problems and sulphate-containing additives-electrolytes are also used as accelerators for setting and hardening of cement. Action mechanism of additive
Externí odkaz:
https://doaj.org/article/084bed97c82a4936b6c757ecc1d5d53a
Autor:
P. I. Yukhnevskiy, G. T. Schirokij
Publikováno v:
Наука и техника, Vol 0, Iss 6, Pp 19-23 (2015)
Quality problem of chemical additives comes down in general to their objective and independent evaluation. As an identification is not made during product delivery for testing and while carrying out the testing there is difference in the results of i
Externí odkaz:
https://doaj.org/article/6ca3c678ac7d4fc6afd92e4c6eb6750d
Autor:
P. I. Yukhnevskiy
Publikováno v:
Наука и техника, Vol 0, Iss 1, Pp 48-52 (2012)
The paper contains calculations of interaction energy for different functional groups of chemical additives with hydrated tricalcium silicate.The paper presents analytical dependences for calculating water reduction effectiveness of plasticizer addit
Externí odkaz:
https://doaj.org/article/84915b2234de4c56b6a1692bfec90803