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Author : Jamshid Sajadi
Publisher :
ISBN 13 :
Total Pages : 178 pages
Book Rating : 4.:/5 (22 download)
Download or read book The Development and Freeze-thaw Durability of High Fly Ash Content Concrete written by Jamshid Sajadi and published by . This book was released on 1987 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Chengsheng Ouyang
Publisher :
ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.:/5 (1 download)
Download or read book Freeze-thaw Durability of Concretes with and Without Class C Fly Ash written by Chengsheng Ouyang and published by . This book was released on 1997 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The freeze-thaw resistance of concretes was studied. Nine concrete mixes, made with five cements and cement-Class C fly ash combinations, were exposed to freeze-thaw cycling following 110 to 222 days of moist curing. Prior to the freeze-thaw cycling, the specimens were examined by a low-vacuum scanning electron microscope (SEN) for their microstructure. The influcence of a wet/dry treatment was also studied. Infilling of ettringite in entrained air voids was observed in the concretes tested. The extent of the infilling depends on the period of moist curing as well as the wet/dry treatment. The concretes with 15% Class C fly ash replacement show more infilling in their air voids. It was found that the influence of the infilling on the freeze-thaw durability relates to the air spacing factor. The greater the spacing factor, the more expansion under the freeze-thaw cycling. The infilling seems to decrease effective air content and to increase effective spacing factor. The infilling also implies that the filled air voids are water-accessible. These might lead to concrete more vulnerable to the freeze-thaw attack. By combining the above results with field observations, one may conclude that the freeze-thaw damage is a factor related to premature deterioration of PCC pavements in Iowa.
Author : Steven. M. Cramer
Publisher :
ISBN 13 :
Total Pages : 110 pages
Book Rating : 4.:/5 (1 download)
Download or read book Strategies for Enhancing the Freeze-thaw Durability of Portland Cement Concrete Pavements written by Steven. M. Cramer and published by . This book was released on 2001 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. Marchand
Publisher : CRC Press
ISBN 13 : 0203627091
Total Pages : 323 pages
Book Rating : 4.2/5 (36 download)
Download or read book Freeze-Thaw Durability of Concrete written by J. Marchand and published by CRC Press. This book was released on 2004-03-01 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concrete durability in climates where freezing and thawing occurs is a continuing problem. It is particularly acute for highway and bridge structures, where de-icing salts are used to combat the effects of frost, snow and ice. These salts can cause damage to concrete and accelerate corrosion of reinforcements. This book presents the latest international research on this area, with contributions from North America and Europe which were presented at an international RILEM workshop.
Author : Ken Isenberger
Publisher :
ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.3/5 (555 download)
Download or read book Fly Ash Concrete written by Ken Isenberger and published by . This book was released on 1981 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Effect of fly ash class, source and amount on the compressive strength and freeze-thaw durability of fly ash concrete.
Author : M. G. Rosa
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (125 download)
Download or read book Development of a Test Procedure for Freeze-Thaw Durability of Geomaterials Stabilized With Fly Ash written by M. G. Rosa and published by . This book was released on 2016 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this research was to develop a freeze-thaw cycling test procedure and to investigate how the volume, moisture content, resilient modulus (Mr), and unconfined compressive strength (qu) of geomaterials, including soils and recycled materials, stabilized with fly ash change after freeze-thaw cycling. Three different types of materials (fine-grained and coarse-grained soils and recycled pavement materials) and five different fly ashes were used at different percentages (10, 12, 14, and 20 % by dry weight). Both one-dimensional and three-dimensional freezing of the specimens were considered. Freezing in three-dimensional was faster in terms of completing the freeze-thaw cycling and provided very similar results to the ones prepared in one-dimensional. Thus, three-dimensional freezing was adopted in this study without access to water (i.e., closed system). The results of this study indicated that the volume of all soil-fly ash mixtures tended to increase after freeze-thaw cycling; however, the volume change was not significant. Resilient modulus tests were conducted on all unstabilized materials, as well as on their mixtures with fly ash, while qu tests were conducted only on fine-grained soil and their fly ash mixtures. The Mr of all mixtures with one exception decreased by an average of 28.5 % when specimens were subjected to freeze-thaw cycling. The drop in the Mr of the specimens leveled off after 5 freeze-thaw cycles. A general trend of higher Mr of materials stabilized with fly ash (from 3 to 168 %), even after freeze-thaw cycles compared to unstabilized material was observed. In general, a reduction in unconfined compressive strength (qu) after freeze-thaw cycles up to 70 % was obtained. However, results showed that qu of stabilized soils that were subjected to freeze-thaw cycles were still higher (from 6 to 157 %) than the qu of unstabilized soils.
Author : E. E. Berry
Publisher : Energy, Mines and Resources Canada : CANMET, Canadian Centre for Mineral and Energy Technology
ISBN 13 :
Total Pages : 206 pages
Book Rating : 4.:/5 (318 download)
Download or read book Fly Ash in Concrete written by E. E. Berry and published by Energy, Mines and Resources Canada : CANMET, Canadian Centre for Mineral and Energy Technology. This book was released on 1986 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents a state-of-the-art review of the principaladvances in research, development, and practical application offly ash in concrete that have been made during the period 1976to 1984. Recommendations are made with regard to aspects of flyash concrete technology requiring further research.
Author : R Auberg
Publisher : CRC Press
ISBN 13 : 0203627326
Total Pages : 400 pages
Book Rating : 4.2/5 (36 download)
Download or read book Frost Resistance of Concrete written by R Auberg and published by CRC Press. This book was released on 2004-03-01 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book forms the proceedings of the international workshop to be held in Essen, Germany. This workshop summarises the conclusion of the technical committee's investigations into the resistance of concrete to freeze-thaw attack, specific in this to resistance with or without de-icing chemicals. It presents the RILEM recommendations on testing the freeze-thaw and de-icing salt resistance of concrete.
Author : Dietmar Lutze
Publisher : Verlag Bau+Technik
ISBN 13 : 3764005378
Total Pages : 188 pages
Book Rating : 4.7/5 (64 download)
Download or read book Handbook on fly ash in concrete written by Dietmar Lutze and published by Verlag Bau+Technik. This book was released on 2013-03-20 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: When used as an addition and binder component, fly ash has become an indispensable construction material for many concrete applications. The conditions produced in power stations when firing fine pulverized coal result in the formation of a reactive, flour-fine, pozzolanic mineral material from the accompanying rock in the coal. Owing to its specific characteristics it has a positive impact on the properties of fresh and hardened concrete and facilitates cost-effective production of high-grade, durable concretes. The authors of this handbook have combined the latest discoveries from the field of research with practical experience of the use and effects of fly ash in concrete. This handbook provides the necessary information and makes interesting suggestions for selective use of fly ash in concrete.
Author :
Publisher :
ISBN 13 :
Total Pages : 52 pages
Book Rating : 4.:/5 (1 download)
Download or read book Freeze and Thaw Durability of Fly Ash Concrete written by and published by . This book was released on 1987 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 134 pages
Book Rating : 4.:/5 (318 download)
Download or read book Supplemental Proceedings - Fourth International Conference on Fly Ash, Silica Fume, Slag, and Natural Pozzolans in Concrete written by and published by . This book was released on 1992 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Roxanne C. Kreisel
Publisher :
ISBN 13 :
Total Pages : 222 pages
Book Rating : 4.:/5 (1 download)
Download or read book Freeze-thaw Durability of High-strength Concrete written by Roxanne C. Kreisel and published by . This book was released on 1998 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents freeze-thaw durability results of an investigation regarding the application of high performance concrete (HPC) to prestressed bridge girders. This study included a total of 30 concrete mixes and more than 130 specimens, with the following variables: aggregate type: round river gravel, partially-crushed gravel, granite, high-absorption limestone, and low-absorption limestone; cementitious material composition: Type III portland cement only, 20% fly ash, 7.5% silica fume, and combination of 20% fly ash with 7.5% silica fume replacement by weight of cement; and curing condition: heat-cured or seven-day moist-cured.
Author :
Publisher :
ISBN 13 :
Total Pages : 29 pages
Book Rating : 4.:/5 (185 download)
Download or read book Use of Fly Ash in Concrete written by and published by . This book was released on 1989 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Zeyad Taha Zayed
Publisher :
ISBN 13 :
Total Pages : 104 pages
Book Rating : 4.:/5 (13 download)
Download or read book Freeze-thaw Resistance of Concrete Containing Fly Ash and Type IA Portland Cement written by Zeyad Taha Zayed and published by . This book was released on 1985 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Donald J. Janssen
Publisher : RILEM Publications
ISBN 13 : 9782912143310
Total Pages : 318 pages
Book Rating : 4.1/5 (433 download)
Download or read book PRO 25: International RILEM Workshop on Frost Damage in Concrete written by Donald J. Janssen and published by RILEM Publications. This book was released on 2002 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 162 pages
Book Rating : 4.:/5 (318 download)
Download or read book High-volume Fly Ash Concrete Technology written by and published by . This book was released on 1992 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : M. Pigeon
Publisher : CRC Press
ISBN 13 : 1482271443
Total Pages : 259 pages
Book Rating : 4.4/5 (822 download)
Download or read book Durability of Concrete in Cold Climates written by M. Pigeon and published by CRC Press. This book was released on 2014-04-21 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive and authoritative review of durability of the frost resistance of concrete. It will enable both concrete materials specialists and practising engineers to better understand the deterioration processes which take place during freezing and thawing, and the effects of de-icing salts on concrete. It shows how test pro
