Download or read book Sulfate Amage to Concrete Floors on Sulfate Bearing Hardcore written by Building Research Establishment and published by Riba Publishing. This book was released on 2008-03 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offers guidance on the damage to houses and other dwellings caused by sulphate attack to floor slabs resulting from use of sulphate-bearing hardcore. This document highlights several options for procedures for investigation, assessment and remedial measures. This document, prepared by the Building Research Establishment (BRE), provides authoritative guidance on the damage to houses and other dwellings caused by sulphate attack to floor slabs resulting from past use of sulphate-bearing hardcore. Written for local authorities, professionals and homeowners, this document highlights several options for procedures for investigation, assessment and remedial measures.

Download or read book Sulfate Attack on Concrete written by J. Marchand and published by CRC Press. This book was released on 2001-10-11 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sulfate Attack on Concrete provides a comprehensive reference to this important subject. It covers: a short history of concrete deterioration due to sulfate attack, the origin of sulfates in concrete, the importance of appropriate concrete processing, forms and physical-chemical mechanisms of concrete deterioration due to sulfates, preventative mea

Download or read book Residential Construction Law written by Philip Britton and published by Bloomsbury Publishing. This book was released on 2021-07-15 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first book to offer a systematic and analytical overview of the legal framework for residential construction. In doing so, the book addresses two fundamental questions: Prevention: What assurances can the law give buyers (and later owners and occupiers) of homes that construction work – from building of a complete home to adding an extension or replacing a shower unit – will comply with minimum standards of design, safety and build quality? Cure: What forms of redress - from whom, and by what route - can residents expect, when, often long after completion of construction, they discover defects? The resulting problems pose some big and difficult questions of principle and policy about standards, rights and remedies, which in turn concern justice more generally. This book addresses these key issues in a comparative context across the United Kingdom, Ireland, Australia and New Zealand. It is an accessible guide to the existing law for residents and construction professionals (and their legal advisers), but also charts a course to further, meaningful reforms of the legal landscape for residential construction around the world. The book's two co-authors, Philip Britton and Matthew Bell, have taught in the field in the UK, Australia and New Zealand; both have been active in legal practice, as have the book's two specialist contributors, Deirdre Ní Fhloinn and Kim Vernau.

Download or read book Materials Science of Concrete written by Jacques Marchand and published by Wiley-American Ceramic Society. This book was released on 1999 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 18 papers grapple with new problems and old ones that remain unresolved concerning sulfate attack on concrete, not considered one of the most prevalent mechanisms of concrete deterioration, but one that has received much attention lately because of costly litigation against manufacturers, developers, and others. The topics include the role of ettringite in external sulfate attack, microstructural alterations in permeable concrete, assessing damage and predicting service life of venerable concrete, a marine environment, and the adequacy of standards. Annotation copyrighted by Book News, Inc., Portland, OR

Download or read book Improving Cementitious Properties of Blended Pozzolan Based Materials for Construction of Low Cost Buildings in Mbeya Region Tanzania written by Duwa Hamisi Chengula and published by kassel university press GmbH. This book was released on 2018-02-28 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study therefore investigated and improved cementitious properties of pozzolan blended with calcium hydroxide, gypsum and cement in order to extend its use from low strength mortars to concrete works which can be used for low to medium rise structural applications. Characterization, strength tests and durability tests were performed on pozzolan mixtures under laboratory conditions and the effects of adding gypsum to pozzolan and calcium hydroxide mixtures on the compressive strength and durability of cured concrete specimens were investigated.

Download or read book External Sulphate Attack Field Aspects and Lab Tests written by Esperanza Menéndez and published by Springer Nature. This book was released on 2019-09-17 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume gathers contributions from the final workshop of the RILEM TC-251-SRT "Sulfate Resistance Testing" on External Sulfate Attack (TESA 2018), held on May 24-25, 2018 at IETcc-CSIC, Madrid, Spain. One of the Technical Committee’s main events, it addressed various aspects of external sulfate attack in concrete structures and test methods. The workshop promoted technical discussions and debates on ideas on these topics, with a focus on evaluating the resistance of concrete exposed to ESA. It also provided a forum for participants from around the globe to share their experiences and research on concrete structures affected by external sulfate attack and on test methods. The book discusses the latest advances in research related to ESA and new developments in test methods, and features real-world case studies of concrete structures affected by external sulfate attack in various countries. It also presents new studies linking field cases and lab tests, including 12 contributions on 3 main themes: mechanisms of alteration in external sulfate attack; field aspects of external sulfate attack; and testing to evaluate the resistance of concrete to external sulfate attack.

Download or read book Sulfate Attack on Portland Cement based Materials written by Nikhila Naik and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Significance of Tests on Sulfate Resistance of Concrete written by E. C. Higginson and published by . This book was released on 1953 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sulphate Resistance of Concrete written by D. E. Shirley and published by . This book was released on 1983 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sodium Sulfate Attack on Concrete written by Dominic Langelier and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Concrete is a construction material used in the majority of existing structures, such as bridges, dams, buildings etc. In some cases, the structures are exposed to sulfates which attack and deteriorate the concrete due to chemical reaction. The resistance of concrete to sulfate attack is typically represented by the expansion of concrete or mortar bars which are fully submerged in sulfate solution (described in the ASTM C-1012 standard). This exposure is poorly representative of the conditions to which concrete is exposed in the field since in most situations concrete is only partially submerged and, in many cases, subjected to cyclic exposure to sulfates. Furthermore, the parameter tested in the standard (i.e. expansion) does not necessarily represent the damage to the concrete. For these reasons, the objective of this research was to investigate sulfate attack under different exposure conditions which are more representative of those found in the field. The quantification of damage was done by looking at different transport properties, and changes to those properties, since they directly correspond to the mechanism in which the sulfate enters the concrete." --

Download or read book Investigation of Sulfate Attack on Concrete written by John Donald Whitaker and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Resistance to Sulfate Attack of Concrete Using Special Cements as Compared with Concrete Using Type V Sulfate resisting Cement written by and published by . This book was released on 1961 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sulfate Attack on Concrete written by Menashi David Cohen and published by . This book was released on 1991 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book SP 317 Sulfate Attack on Concrete written by Mohamed T. Bassuoni and published by . This book was released on 2017-06-12 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigating Various Test Methods for Assessing the Effect of Sulfate Attack on Concrete Properties written by Julie Ann Hartell and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The degradation mechanisms related to the numerous chemical and physical reactions associated with external sulphate attack are undeniably complicated and are difficult to assess in the field. This study compares various sodium sulphate exposure regimes by using novel testing procedures to assess the level of sulphate attack degradation throughout an extended exposure period. A total of four exposure regimes designed to simulate those encountered in practice were replicated to compare the differences between each transport mechanism: diffusion, diffusion combined with wet-dry cycling, evaporative wicking and wicking combined with wet-dry cycling. The laboratory specimens were exposed for periods of 3, 6, 12, 18 or 24 months to three different solutions; the ASTM standard solution (5% Na2SO4), a less concentrated version representative of severe field exposure (2% Na2SO4) and the control solution (lime-saturated). Once the end of the exposure term was reached, the specimens were subjected to a series of mechanical tests. This investigation evaluated the potential and reliability of various testing techniques to identify a sulphate related distress and to quantify its extent. Prior to destructive testing, ultrasonic pulse velocity was conducted; herein, two test frequencies were compared (54 kHz and 300 kHz). The change in tensile strength was measured in three different ways: an indirect splitting tensile test, a four point bending test and a direct gas pressure tension test. During the splitting tensile tests, acoustic emission monitoring was used to quantify and qualify damage progression under stress by locating the events in three dimensional space. The results demonstrate the sensitivity of each test in measuring the variance in mechanical properties related to the sulphate exposure types and offered insight into which experimental procedure is better suited for early sulphate damage detection. " --

Download or read book Test Methods for Sulfate Resistance of Concrete and Mechanism of Sulfate Attack written by Aimin Xu and published by . This book was released on 1998 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physio chemical Degradation of Concrete written by MD Aminul Islam and published by . This book was released on 2018 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Concrete structures experience damage due to Sulfate Attack (SA) and Freeze-Thaw (F-T) in cold regions containing ample amount of sulfate species. The combined effect of SA and F-T is a multiscale multiphysics damaging process for cementitious materials involving complicated chemical reactions and phase transition inside concrete pores. This thesis is a compilation of two theoretical models describing the SA induced damage in an unsaturated cementitious medium and damage due to the combined effect of SA and F-T. The classical theory of phase change and a diffusion-reaction process is utilized in the development of the models. The validity of the proposed models is tested by comparing the numerical results against existing experimental data for concrete mortars. It is found that the numerical results agree very well with the experimental results. These coupled mathematical models can be applied to assess the effect of ambient sulfate concentration on the degradation of concrete, the pore-size distribution (PSD), hysteresis of solidification and melting of water in concrete pores and change of porosity due to SA and F-T. Most importantly the proposed mathematical model is capable of explaining the damage extent of concrete under coupled conditions that are somewhat difficult and time consuming to be evaluated by contemporary experimental methods."--Boise State University ScholarWorks.