Study of the admixtures effect on concrete creep using Bayesian Linear Regression

• Autorzy: Zgheib E. , Raphael W.

Identyfikatory

DOI

10.2478/ace-2019-0039

• Języki publikacji: EN

Abstrakty

EN

Admixtures are commonly used nowadays in the mix composition of concrete. These additions affect concrete properties and performance especially creep deformations. This paper shows the effect of admixtures on creep of concrete. In fact, creep deformations have prejudicial consequences on concrete behaviour; an incorrect or inaccurate prediction leads to undesirable consequences in structures. Therefore, an accurate estimation of these deformations is mandatory. Moreover, design codes do not consider admixtures’ effect while predicting creep deformations, thus it is necessary to develop models that predict accurately creep deformations and consider the effect of admixtures. Using a large experimental database coming from international laboratories and research centres, this study aims to update the Eurocode 2 creep model by considering the type and percentage of admixtures using Bayesian Linear Regression method. The effect of two types of admixtures is presented in this paper; the water reducer and silica fume.

Słowa kluczowe

EN

Eurocode 2; concrete creep; Bayesian method; linearization; admixture; water reducer; silica fume

PL

Eurokod 2; pełzanie betonu; metoda Bayesa; linearyzacja; domieszka; reduktor wody; pył krzemionkowy

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2019
• Tom: Vol. 65, nr 3
• Strony: 127--140
• Opis fizyczny: Bibliogr. 19 poz., il., tab.

Twórcy

autor

Zgheib E.

• Lebanese Canadian University, Aintoura, Lebanon

autor

Raphael W.

• Saint Joseph University (USJ)
• Ecole Supérieure d’Ingénieurs de Beyrouth (ESIB), Dekwaneh, Lebanon

Bibliografia

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