Mesoscale investigation of mass concrete temperature control systems and their consequences on concrete mechanical behaviour

This study investigates the impact of aggregate and pipe cooling systems on concrete behaviour at a mesoscale level. Firstly, a Chemo-Thermo-Mechanical model is developed to investigate the initial stress state of early age hydration concrete followed by a mechanical analysis of the consequences bro...

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Bibliographic Details
Published in:	Frattura ed integritá strutturale Vol. 16; no. 60; pp. 416 - 437
Main Authors:	Matallah, Mohammed, Taibi, Abdelsemi, Chimoto, T.T., Maradzika, F.K.
Format:	Journal Article
Language:	English
Published:	Gruppo Italiano Frattura 01-04-2022
Subjects:	aggregate cooling early age behaviour mesoscale modelling pipe cooling
Online Access:	Get full text
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Summary:	This study investigates the impact of aggregate and pipe cooling systems on concrete behaviour at a mesoscale level. Firstly, a Chemo-Thermo-Mechanical model is developed to investigate the initial stress state of early age hydration concrete followed by a mechanical analysis of the consequences brought by this initial state. Pipe and aggregate cooled concrete samples have been subjected to tensile and cyclic loadings. The results have been discussed in terms of damage and crack openings. It has been concluded that early age hydration modifies the initial conditions of any concrete structures. Regarding the cyclic behaviour, initial state due to the hydration process leads to permanent displacements corresponding to damage and cracking. The cooling methods improve the mechanical behaviour of concrete.
ISSN:	1971-8993 1971-8993
DOI:	10.3221/IGF-ESIS.60.29