RAS Chemistry & Material ScienceЖурнал физической химии Russian Journal of Physical Chemistry

  • ISSN (Print) 0044-4537
  • ISSN (Online) 3034-5537

Features of the Heat Treatment of Concrete

PII
10.31857/S004445372311033X-1
DOI
10.31857/S004445372311033X
Publication type
Status
Published
Authors
Volume/ Edition
Volume 97 / Issue number 11
Pages
1579-1583
Abstract
Thermal desorption mass spectrometry is used to study products of the heat treatment of concrete samples containing a plasticizer and an antifreeze additive (urea). It is established that the heat treatment of concrete above 100°C is accompanied by the hydrolysis of urea with the release of ammonia and carbon dioxide. Destruction of the plasticizer and the urea remaining in the pores of the concrete begins at temperatures above 200°C. The release of ammonia from concrete continues up to 300°C. The release of toxic products of the plasticizer’s decomposition is observed in the same area. The energy of the observed processes is estimated.
Keywords
термообработка бетон масс-спектрометрия модификаторы карбамид
Date of publication
12.09.2025
Year of publication
2025
Number of purchasers
0
Views
9

References

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At the Ministry of Education and Science of the Russian Federation

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