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  2. Всі випуски
  3. Випуск 17, Номер 1, 2023
  4. Вплив сульфатів калію на процеси тужавіння портландцементного тіста

Вплив сульфатів калію на процеси тужавіння портландцементного тіста

JCCT.
2023;
Випуск 17, Номер 1
: cc. 170 - 178
https://doi.org/10.23939/chcht17.01.170
Автори:
  1. Myroslav Sanytsky
  2. Tetiana Kropyvnytska
  3. Orest Shyiko
1
Lviv Polytechnic National University, Department of building production
2
Lviv Polytechnic National University, Department of building рroduction
3
Lviv Polytechnic National University, Department of building production

Досліджено ефекти дії сульфатів калію на тужавіння цементного тіста. Встановлено, що основні елементи (Ca, Si, Al) розподіляються в складі клінкерних мінералів, тоді як атоми K та S концентруються локально в порах з утворенням водорозчинного арканіту K2SO4. Показано, що взаємодія K2SO4 та CaSO4$\cdot$2H2O з утворенням сингеніту K2Ca(SO4)2$​\cdot$H2O спричиняє деструктивні явища в цементному тісті.

портландцементний клінкер
двоводний гіпс
арканіт
сингеніт
терміни тужавіння
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