Guide To The Evaluation And Management Of Concrete Structures Affected By Alkali Aggregate Reaction PDF Download
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Author | : CSA International |
Publisher | : |
Total Pages | : 108 |
Release | : 2000 |
Genre | : Alkali-aggregate reactions |
ISBN | : 9781553241683 |
Download Guide to the Evaluation and Management of Concrete Structures Affected by Alkali-aggregate Reaction Book in PDF, ePub and Kindle
This Guide has been written by Canadian experts on the diagnosis and treatment of concrete structures affected by alkali-aggregate reaction (AAR). The purpose of the Guide is to provide information on the signs and symptoms of concrete affected by AAR, how to identify AAR and distinguish it from other mechanisms of concrete deterioration, and how to assess the extent and severity of AAR in concrete. It also provides advice on the best ways of evaluating, maintaining, and treating structures affected by AAR. This guide will be of use to people involved in such work and to the owners of structures affected by AAR.
Author | : Ian Sims |
Publisher | : CRC Press |
Total Pages | : 768 |
Release | : 2017-08-01 |
Genre | : Science |
ISBN | : 1317484428 |
Download Alkali-Aggregate Reaction in Concrete Book in PDF, ePub and Kindle
Alkali-Aggregate Reaction in Concrete: A World Review is unique in providing authoritative and up to date expert information on the causes and effects of Alkali-Aggregate Reaction (AAR) in concrete structures worldwide. In 1992 a first edition entitled The Alkali-Silica Reaction in Concrete, edited by Professor Narayan Swamy, was published in a first attempt to cover this concrete problem from a global perspective, but the coverage was incomplete. This completely new edition offers a fully updated and more universal coverage of the world situation concerning AAR and includes a wealth of new evidence and research information that has accumulated in the intervening years. Although there are various textbooks offering readers sections that deal with AAR deterioration and damage to concrete, no other single book brings together the views of recognised international experts in the field, and the wealth of scattered research information that is available. It provides a ‘state of the art’ review and deals authoritatively with the mechanisms of AAR, its diagnosis and how to treat concrete affected by AAR. It is illustrated by numerous actual examples from around the world, and comprises specialist contributions provided by senior engineers and scientists from many parts of the world. The book is divided into two distinct but complementary parts. The first five chapters deal with the most recent findings concerning the mechanisms involved in the reaction, methods concerning its diagnosis, testing and evaluation, together with an appraisal of current methods used in its avoidance and in the remediation of affected concrete structures. The second part is divided into eleven chapters covering each region of the world in turn. These chapters have been written by experts with specialist knowledge of AAR in the countries involved and include an authoritative appraisal of the problem and its solution as it affects concrete structures in the region. Such an authoritative compilation of information on AAR has not been attempted previously on this scale and this work is therefore an essential source for practising and research civil engineers, consultant engineers and materials scientists, as well as aggregate and cement producers, designers and concrete suppliers, especially regarding projects outside their own region.
Author | : Bruno Godart |
Publisher | : Springer Science & Business Media |
Total Pages | : 95 |
Release | : 2013-04-08 |
Genre | : Technology & Engineering |
ISBN | : 9400765673 |
Download Guide to Diagnosis and Appraisal of AAR Damage to Concrete in Structures Book in PDF, ePub and Kindle
This book describes procedures and methodologies used predominantly to obtain a diagnosis of damaged concrete possibly caused by Alkali-Aggregate Reaction (AAR). It has two primary objectives, namely firstly to identify the presence of AAR reaction, and whether or not the reaction is the primary or contributory cause of damage in the concrete; and secondly, to establish its intensity (severity) in various members of a structure. It includes aspects such as field inspection of the structure, sampling, petrographic examination of core samples, and supplementary tests and analyses on cores, such as mechanical tests and chemical analysis. Evaluation of test data for prognosis, consequences and appraisal will be more fully set out in AAR-6.2.
Author | : Geoffrey E. Blight |
Publisher | : CRC Press |
Total Pages | : 250 |
Release | : 2011-01-18 |
Genre | : Science |
ISBN | : 0203093216 |
Download Alkali-Aggregate Reaction and Structural Damage to Concrete Book in PDF, ePub and Kindle
Since AAR was first identified in 1940, it has been a subject dominated by studies of the mineralogy of AAR-susceptible aggregates, the chemistry of the AAR and related reactions and laboratory tests used to diagnose AAR and predict potential future swelling. Civil and structural engineers have found the literature bewildering and difficult to appl
Author | : R N Swamy |
Publisher | : CRC Press |
Total Pages | : 288 |
Release | : 1991-09-01 |
Genre | : Architecture |
ISBN | : 0203036638 |
Download The Alkali-Silica Reaction in Concrete Book in PDF, ePub and Kindle
This book reviews the fundamental causes and spectrum effects of ASR. It considers he advances that have been made in our understanding of this problem throughout the world.
Author | : |
Publisher | : |
Total Pages | : 25 |
Release | : 2000 |
Genre | : |
ISBN | : |
Download Alkali-aggregate Reaction in Concrete Book in PDF, ePub and Kindle
This paper presents theoretical and applied state-of-the-art information in the field of alkali-aggregate reactivity (AAR) in concrete. The aspects discussed include basic concepts of the reaction and expansion mechnasims, conditions conducive to the development and the sustainability of AAR in concrete, field and laboratory investigation program for evaluating the potential alkali-reactivity of concret aggregates, selection of preventive measures against AAR, and the management of structures affected by AAR. The management section includes the diagnosis of AAR in existing concrete structures, evaluation of potential for future distress due to AAR, and mitigation and repair approaches used on such structures. This is an introductory paper and sets the stage for a special review of the current AAR situation in the various regions of Canada that is presented in seven papers as part of this issue.
Author | : Leandro F. M. Sanchez |
Publisher | : Springer Nature |
Total Pages | : 748 |
Release | : |
Genre | : |
ISBN | : 3031593499 |
Download Proceedings of the 17th International Conference on Alkali-Aggregate Reaction in Concrete Book in PDF, ePub and Kindle
Author | : Philip J. Nixon |
Publisher | : Springer |
Total Pages | : 181 |
Release | : 2015-09-30 |
Genre | : Technology & Engineering |
ISBN | : 9401772525 |
Download RILEM Recommendations for the Prevention of Damage by Alkali-Aggregate Reactions in New Concrete Structures Book in PDF, ePub and Kindle
This book contains the full set of RILEM Recommendations which have been produced to enable engineers, specifiers and testing houses to design and produce concrete which will not suffer damage arising from alkali reactions in the concrete. There are five recommended test methods for aggregates (designated AAR-1 to AAR-5), and an overall recommendation which describes how these should be used to enable a comprehensive aggregate assessment (AAR-0). Additionally, there are two Recommended International Specifications for concrete (AAR-7.1 & 7.2) and a Preliminary International Specification for dams and other hydro structures (AAR-7.3), which describe how the aggregate assessment can be combined with other measures in the design of the concrete to produce a concrete with a minimised risk of developing damage from alkali-aggregate reactions.
Author | : Eric Richard Giannini |
Publisher | : |
Total Pages | : 604 |
Release | : 2012 |
Genre | : |
ISBN | : |
Download Evaluation of Concrete Structures Affected by Alkali-silica Reaction and Delayed Ettringite Formation Book in PDF, ePub and Kindle
Alkali-silica reaction (ASR) and delayed ettringite formation (DEF) are expansive reactions that can lead to the premature deterioration of concrete structures. Both have been implicated in the deterioration of numerous structures around the world, including many transportation structures in Texas. As a result of considerable research advances, ASR and DEF are now avoidable in new construction, but evaluating and managing the existing stock of structures damaged by these mechanisms remains a challenge. While the published guidance for evaluating structures is very effective at diagnosing the presence of ASR and DEF, there remain significant weaknesses with respect to the evaluation of structural safety and serviceability and nondestructive testing (NDT) is a minor component of the evaluation process. The research described in this dissertation involved a wide range of tests on plain and reinforced concrete at multiple scales. This included small cylinders and prisms, larger plain and reinforced concrete specimens in outdoor exposure, full-scale reinforced concrete beams, and core samples from the outdoor exposure specimens and full-scale reinforced concrete beams. Nondestructive test methods were applied at all scales, and the full-scale beams were also tested in four-point flexure to determine the effects of ASR and DEF on flexural strength and serviceability. Severe expansions from ASR and DEF did not reduce the strength of the full-scale beams or result in excessive deflections under live loads, despite significant decreases in the compressive strength and elastic modulus measured from core samples. Most NDT methods were found to be effective at low expansions but had difficulty correlating to larger expansions. Two promising NDT methods have been identified for future research and development, and guidance regarding existing test methods is offered.
Author | : Paolo Gardoni |
Publisher | : |
Total Pages | : 115 |
Release | : 2013 |
Genre | : Alkali-aggregate reactions |
ISBN | : |
Download Evaluation of Concrete Structures Affected by Alkali-silica Reaction and Delayed Ettringite Formation Book in PDF, ePub and Kindle