Azevedo Concrete Structures Deteriorated by Delayed Ettringite Formation and Alkali-Silica Reactions 9783031122668

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Автор: Azevedo
Название: Concrete Structures Deteriorated by Delayed Ettringite Formation and Alkali-Silica Reactions
ISBN: 9783031122668
Издательство: Springer
Классификация:

Материаловедение

Строительные конструкции и материалы

ISBN-10: 3031122666
Обложка/Формат: Hardback
Страницы: 88
Вес: 0.34 кг.
Дата издания: 29.09.2022
Серия: Building Pathology and Rehabilitation
Язык: English
Издание: 1st ed. 2023
Иллюстрации: 44 illustrations, color; 15 illustrations, black and white; viii, 88 p. 59 illus., 44 illus. in color.
Размер: 235 x 155
Читательская аудитория: Professional & vocational
Основная тема: Engineering
Ссылка на Издательство: Link
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Поставляется из: Германии
Описание: This book discusses the behaviour of isolated concrete bottle-shaped struts affected by internal expansion reactions (ISR). For that purpose, the numerical modelling of damaged concrete was performed using the Concrete Damaged Plasticity Model (CDPM) implemented in ABAQUS and validated the model through Sankovichs tests. A procedure to automatically obtain the concrete plasticity and damage parameters, essential for CDPM, was developed in Matlab. The inputs were the characteristic compressive strength of the concrete, the equivalent length of the finite element mesh and the ratio between the plastic and inelastic compressive strains. The results showed that the CDPM could represent the load-bearing mechanisms of isolated concrete bottle-shaped struts for a range of several stress levels to which these elements may be subjected in the panels investigated. The numerical simulations for different expansion levels consistently captured the expected damage profile of the panels and the load corresponding to the formation of the first crack, the estimated crack opening, and the ultimate load. For the panels investigated, the reduction observed in the failure load reached values close to 70%, the increase of the tensile plastic deformation was more than 60%, and the maximum crack opening can reach an increase of 113% when compared with those observed experimentally in panels without internal swelling reactions The book also offers a systematic review of the current state of knowledge and it is a valuable resource for scientists, students, practitioners, and lecturers in various scientific and engineering disciplines, namely, civil and materials engineering, as well as and other interested parties.

Concrete Structures Deteriorated by Delayed Ettringite Formation and Alkali-Silica Reactions, Azevedo