A new approach to the accelerated method for assessing the alkali reactivity of domestic aggregates

• Autorzy: Zapała-Sławeta Justyna , Zięba Kamil

Identyfikatory

DOI

10.30540/sae-2024-017

Warianty tytułu

PL

Nowe podejście do przyspieszonej metody badania reaktywności alkalicznej kruszyw krajowych

• Języki publikacji: EN

Abstrakty

EN

In Poland, the prevailing protocols for examining the alkali reactivity of aggregates are based on indirect methodologies such as petrographic appraisal, in addition to direct methodologies including the measurement of expansion in mortar and concrete specimens containing the aggregate under investigation. The available research methods exhibit certain deficiencies, which have been mitigated under the experimental conditions delineated in the novel accelerated approach for ascertaining the reactivity of aggregates, otherwise known as the MCPT - Miniature Concrete Prism Test. The methodology of MCPT has the potential to become an alternative for the existing procedures of quality assessment for both fine and coarse aggregates. This work presents the assessment results of the alkaline reactivity of indigenous fine quartz aggregate, examined in accordance with the protocols established by the Polish General Directorate for National Roads and Motorways along together the novel, expedited MCPT methodology.

PL

Obecnie stosowane w Polsce procedury badania reaktywności alkalicznej kruszyw oparte są na metodach pośrednich, takich jak ocena petrograficzna oraz metodach bezpośrednich, polegających na określaniu ekspansji próbek zapraw i betonów z badanym kruszywem. Dostępne metody badawcze wykazują pewne wady, które zostały ograniczone w warunkach badawczych ustalonych w nowej przyspieszonej metodzie określania reaktywności kruszyw, tzw. MCPT - Miniature Concrete Prism Test. Metoda MCPT może stać się alternatywą dla obecnego testowania jakości kruszyw drobnych i grubych. W pracy przedstawiono wyniki oceny reaktywności alkalicznej krajowego drobnego kruszywa kwarcowego, badanego zgodnie z procedurami Generalnej Dyrekcji Dróg Krajowych i Autostrad oraz nowej przyspieszonej metody MCPT.

Słowa kluczowe

EN

alkali-aggregate reaction; testing methods; mcpt method; correlation

PL

korozja alkaliczna kruszyw; metody badawcze; metoda MCPT; korelacja

• Wydawca: Wydawnictwo Politechniki Świętokrzyskiej
• Czasopismo: Structure and Environment
• Rocznik: 2024
• Tom: Vol. 16, no. 3
• Strony: 166--173
• Opis fizyczny: Bibliogr. 25 poz., rys., tab., wykr.

Twórcy

autor

Zapała-Sławeta Justyna

• Kielce University of Technology, Poland

autor

Zięba Kamil

• Kielce University of Technology, Poland
• Centrum Technologiczne Betotech sp. z o.o., Dąbrowa Górnicza, Poland

Bibliografia

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Uwagi

This paper was supported by the Ministry of Education and Science [Doktorat Wdrożeniowy 2023].