The Mechanism of Disintegration of Cement Concrete at High Temperatures

Construction Science 2016
Vytautas Jocius, Gintautas Skripkiūnas

Concrete is a composite material composed of a binder, aggregates, water and additives. Mixing of cement with water results in a number of chemical reactions known as cement hydration. Heating of concrete results in dehydration processes of cement minerals and new hydration products, which disintegrate the microstructure of concrete. This article reviews results of research conducted with Portland and alumina cement with conventional and refractory concrete aggregates. In civic buildings such common fillers as gravel, granite, dolomite or expanded clay are usually used. It is important to point out the differences between fillers because they constitute the majority of the concrete volume.

Atslēgas vārdi
Aggregate, concrete, dehydration, disintegration mechanism, high temperature, Portland cement

Jocius, V., Skripkiūnas, G. The Mechanism of Disintegration of Cement Concrete at High Temperatures. Construction Science, 2016, Vol. 18, No. 1, 4.-9.lpp. ISSN 1407-7329. e-ISSN 2255-8551.

Publikācijas valoda
English (en)