Skip to main content
Top

2021 | Book

Diagnostic of Concrete Samples Affected by Internal Swelling Reactions

Authors: Dr. António C. Azevedo, Prof. Fernando A.N. Silva, Prof. João M.P.Q. Delgado, Dr. Nicole P.S. Souza, Dr. Mahfoud Tahlaiti, Dr. Abdelhafid Khelidj

Publisher: Springer International Publishing

Book Series : Building Pathology and Rehabilitation

insite
SEARCH

About this book

This book offers a complete diagnosis of concrete samples collected from a pile cap block of residential buildings affected by internal swelling reactions. Covering an extensive laboratory campaign to evaluate the transport properties of concrete samples, as well as their physical and chemical composition using advanced techniques to analyse cores extracted from real buildings that have concrete elements affected by internal swelling reactions (ISR). It features several rehabilitation procedures, pile caps repair and rehabilitation design, executed using strengthening procedures to provide the complete restoration of the structural integrity of the element deteriorated. These rehabilitation procedures proved to be a good solution to retrofit pile cap deteriorated by expansions due to internal swelling reactions of concrete. The book also offers a systematic review of the current state of knowledge and it is a valuable resource for scientists, students, and practitioners in various scientific and engineering disciplines, namely, civil and materials engineering, as well as and other interested parties.

Table of Contents

Frontmatter
Chapter 1. Introduction
Abstract
In the last decade, the occurrence of early deterioration of pile cap blocks in residential buildings and concrete bridges in the Metropolitan Region of Recife (MMR) has been reported with relative frequency. This process usually starts with the occurrence of a horizontal crack of large opening in the lateral faces of the element, located approximately 30 cm from the upper face of the block, and its installation is usually attributed to the expansions of concrete resulting from the alkali-aggregate reaction.
António C. Azevedo, Fernando A. N. Silva, João M. P. Q. Delgado, Nicole P. S. Nascimento, Mahfoud Tahlaiti, Abdelhafid Khelidj
Chapter 2. State-of the-Art
Abstract
Concrete is a heterogeneous material, composed of a cement matrix, interfacial transition zone and aggregate. According to some researchers (Machovic, Kopecký, Nemecek, Kolár, Svítilová, Bittnar and Andertová), the typical thickness of interfacial transition zone (ITZ) is around 15–50 μm.
António C. Azevedo, Fernando A. N. Silva, João M. P. Q. Delgado, Nicole P. S. Nascimento, Mahfoud Tahlaiti, Abdelhafid Khelidj
Chapter 3. Methodology
Abstract
The methodological strategy of the research contemplated four distinct phases: (a) choice of a typical multi-family residential building whose pile cap foundations had presented symptoms of the occurrence of the alkali-aggregate reaction in its concrete elements; (b) choice of a foundation element more affected by the reaction: (c) extraction of concrete samples and (d) carrying out various laboratory tests to the complete characterization of the samples.
António C. Azevedo, Fernando A. N. Silva, João M. P. Q. Delgado, Nicole P. S. Nascimento, Mahfoud Tahlaiti, Abdelhafid Khelidj
Chapter 4. Results and Discussion
Abstract
In this chapter the results of the analyses and tests are presented and discussed. The results of the experimental part of the dynamic modulus of elasticity, initial static modulus, compressive strength, apparent porosity and air permeability of concrete are evaluated. In the analyses performed, scanning electron microscopy, x-ray diffraction and Raman spectroscopy will be addressed.
António C. Azevedo, Fernando A. N. Silva, João M. P. Q. Delgado, Nicole P. S. Nascimento, Mahfoud Tahlaiti, Abdelhafid Khelidj
Chapter 5. Conclusions
Abstract
This chapter presents the main considerations and conclusions obtained from the results and analyses carried out in the experimental program, being valid for the materials and conditions that they were submitted.
António C. Azevedo, Fernando A. N. Silva, João M. P. Q. Delgado, Nicole P. S. Nascimento, Mahfoud Tahlaiti, Abdelhafid Khelidj
6. Correction to: Diagnostic of Concrete Samples Affected by Internal Swelling Reactions
António C. Azevedo, Fernando A. N. Silva, João M. P. Q. Delgado, Nicole P. S. Nascimento, Mahfoud Tahlaiti, Abdelhafid Khelidj
Backmatter
Metadata
Title
Diagnostic of Concrete Samples Affected by Internal Swelling Reactions
Authors
Dr. António C. Azevedo
Prof. Fernando A.N. Silva
Prof. João M.P.Q. Delgado
Dr. Nicole P.S. Souza
Dr. Mahfoud Tahlaiti
Dr. Abdelhafid Khelidj
Copyright Year
2021
Electronic ISBN
978-3-030-76497-5
Print ISBN
978-3-030-76496-8
DOI
https://doi.org/10.1007/978-3-030-76497-5