Possibility of application of monolithic foam concretes in aircraft emergency braking systems
https://doi.org//10.31659/0005-9889-2022-610-2-41-44
Abstract
The main construction and technical properties and specific advantages of monolithic foam concrete, making it possible to use it in emergency braking systems installed on the runways of airfields are analyzed. Monolithic foam concrete of D200-D500 density grades with a pore volume of 65-85 % have been developed. It is shown that such important physical and technical properties of concrete as average density, thermal conductivity, strength and frost resistance depend on the quality indicators of the macroporous structure of foam concrete and the structure of interpore partitions (membranes). A decrease in the strength of foam concrete was found as the porosity dispersion increased. It is shown that an increase in the water-solid ratio leads to a significant improvement in the pore distribution.
About the Author
V. V. Remnev
Research, Design and Technological institute of Concrete and Reinforced Concrete (NIIZHB) named after A.A. Gvozdev JSC “Research Center “Stroitel’stvo”
Russian Federation
Russian Federation
Doctor of Sciences (Engineering), Professor, Head of the Center for Special Concrete and Structures, Center No. 11
e-mail: rema97776952@yandex.ru
References
1. Zvezdov A.I., Yarmakovsky V.N. Lightweight concretes of a new generation in modern construction. <i>Stroitel’nyi ekspert</i>. 2005. No. 16 (203), pp. 4–5. (In Russian).
2. Inozemtsev A.S., Korolev E.V. Economic prerequisites for the use of high-strength lightweight concretes. <i>Nauchno-tekhnicheskii vestnik Povolzh’ya</i>. 2012. No. 5, pp. 198–205. (In Russian).
3. Yarmakovsky V.N., Bremner T.U. Lightweight concrete: present and future. <i>Stroitel’nyi ekspert</i>. 2005. No. 20, pp. 5–7. (In Russian).
4. Zvezdov A.I., Falikman V.R. High-strength lightweight concrete in construction and architecture. <i>Zhilishchnoe Stroitel’stvo</i> [Housing Construction]. 2008. No. 7, pp. 2–7. (In Russian).
5. Inozemtsev A.S., Korolev E.V. Structure formation and properties of structural high-strength lightweight concretes with the use of nanomodifier BisNanoActivus. <i>Stroitel’nye Materialy</i> [Construction Materials]. 2014. No. 1–2, pp. 33–37. (In Russian).
6. Karpenko N.I., Yarmakovsky V.N. To the normalization of physical and mechanical characteristics of highstrength lightweight concrete and methods of calculating structures from them. <i>Zhilishchnoe Stroitel’stvo</i> [Housing Construction]. 2016. No. 7, pp. 25–28. (In Russian).
7. Karpenko N.I., Yarmakovsky V.N. Structural lightweight concretes for oil production platforms in the northern tidal seas and the seas of the Far. <i>Vestnik inzhenernoi shkoly DVFU</i>. 2015. No. 2, pp. 105–114. (In Russian).
8. Yarmakovsky V.N. Physico-chemical and structurally technological bases for obtaining high-strength and long-lasting structural lightweight concretes. <i>Stroitel’nye Materialy</i> [Construction Materials]. 2016. No. 6, pp. 6–11. (In Russian).
Review
For citations:
Remnev V.V. Possibility of application of monolithic foam concretes in aircraft emergency braking systems. Concrete and Reinforced Concrete. 2022;610(2):41-44. (In Russ.) https://doi.org//10.31659/0005-9889-2022-610-2-41-44
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