Experimental and numerical investigation of the alkali-silica reaction in the cement-based materials

• Autorzy: Grymin W. , Gawin D. , Koniorczyk M. , Pesavento F.

Identyfikatory

DOI

10.1016/j.acme.2018.07.003

• Języki publikacji: EN

Abstrakty

EN

The main subject of this paper is the investigation of the influence of the alkali-silica reaction on the microstructure and the transport properties of the cement-based materials. In the experimental research, mortar bars prepared with two different aggregates and stored in conditions of various alkali content were examined. Influence of the reaction on the microstructure of the material was investigated using mercury intrusion porosimetry, water capillary suction test and water vapour adsorption test. Mathematical model of the alkali diffusion and the reaction development is presented. It allows to take into consideration the influence of alkali concentration and aggregate sizes on the reaction development. The numerical code was developed using the finite element, finite difference and Newton-Raphson methods. Good accordance of the results obtained using the proposed model with the experimental data available in literature was obtained.

Słowa kluczowe

EN

alkali-silica reaction; alkali diffusion; cement based materials; concrete degradation; durability

PL

degradacja betonu; cement; reakcja alkaliczno-krzemionkowa

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2018
• Tom: Vol. 18, no. 4
• Strony: 1698--1714
• Opis fizyczny: Bibliogr. 23 poz., rys., tab., wykr.

Twórcy

autor

Grymin W.

• Department of Building Physics and Building Materials, Lodz University of Technology, Al. Politechniki 6, Łódź 90-92, Poland

autor

Gawin D.

• Department of Building Physics and Building Materials, Lodz University of Technology, Al. Politechniki 6, Łódź 90-92, Poland

autor

Koniorczyk M.

• Department of Building Physics and Building Materials, Lodz University of Technology, Al. Politechniki 6, Łódź 90-92, Poland

autor

Pesavento F.

• Department of Civil, Environmental and Architectural Engineering, University of Padova, Via Marzolo 9, Padova 35131, Italy

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019)