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Author : E. C. Roshore
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.3/5 (91 download)
Download or read book Durability and Behavior of Prestressed Concrete Beams written by E. C. Roshore and published by . This book was released on 1967 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Edwin C. Roshore
Publisher :
ISBN 13 :
Total Pages : 53 pages
Book Rating : 4.:/5 (618 download)
Download or read book Durability and Behavior of Prestressed Concrete Beams :report 1 - Pretensioned Concrete Investigation, Progress to July 1960 written by Edwin C. Roshore and published by . This book was released on 1961 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Waterways Experiment Station (U.S.)
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (61 download)
Download or read book Durability and Behavior of Prestressed Concrete Beams, Pretensioned Concrete Investigation written by Waterways Experiment Station (U.S.) and published by . This book was released on 1961 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Edward F. O'Neil
Publisher :
ISBN 13 :
Total Pages : 178 pages
Book Rating : 4.3/5 (91 download)
Download or read book Durability and Behavior of Prestressed Concrete Beams written by Edward F. O'Neil and published by . This book was released on 1977 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : E. C. Roshore
Publisher :
ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.:/5 (227 download)
Download or read book Durability and Behavior of Prestressed Concrete Beams. Pretensioned Concrete Investigation, Progress to July 1960 written by E. C. Roshore and published by . This book was released on 1961 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: The investigation comprised the fabrication and testing of 28 large, prestressed concrete beams and 412 small auxiliary specimens of the same concrete to obtain information on the factors affecting durability of prestressed concrete beams. Some of the beams contained air-entrained concrete; some did not. Most of the beams were pretensioned with high-strength steel strands, but four (fabricated for control purposes) were not. The beams were subjected to laboratory tests, and to natural weathering at exposure stations in Maine and Florida, in both loaded and unloaded conditions. The auxiliary specimens were tested to obtain information on the strength, elastic, and plastic properties of the concrete. Tests were also made to determine the creep, tensile strength, relaxation, and dynamic modulus of elasticity of the pretensioning steel strands. (Author).
Author : Edward F. O'Neil
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.3/5 (91 download)
Download or read book Durability and Behavior of Prestressed Concrete Beams written by Edward F. O'Neil and published by . This book was released on 1976 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : E. C. Roshore
Publisher :
ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.3/5 (91 download)
Download or read book Durability and Behavior of Prestressed Concrete Beams written by E. C. Roshore and published by . This book was released on 1971 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Waterways Experiment Station (U.S.)
Publisher :
ISBN 13 :
Total Pages : 31 pages
Book Rating : 4.:/5 (132 download)
Download or read book Durability and Behavior of Prestressed Concrete Beams written by Waterways Experiment Station (U.S.) and published by . This book was released on 1961 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Waterways Experiment Station (U.S.)
Publisher :
ISBN 13 :
Total Pages : 31 pages
Book Rating : 4.:/5 (284 download)
Download or read book Durability and Behavior of Prestressed Concrete Beams written by Waterways Experiment Station (U.S.) and published by . This book was released on 1961 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : E. C. Roshore
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.3/5 (91 download)
Download or read book Durability and Behavior of Prestressed Concrete Beams written by E. C. Roshore and published by . This book was released on 1971 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Edwin C. Roshore
Publisher :
ISBN 13 :
Total Pages : 38 pages
Book Rating : 4.:/5 (618 download)
Download or read book Durability and Behavior of Prestressed Concrete Beams written by Edwin C. Roshore and published by . This book was released on 1967 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Edward F. O'Neil
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.3/5 (91 download)
Download or read book Durability and Behavior of Prestressed Concrete Beams written by Edward F. O'Neil and published by . This book was released on 1984 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Waterways Experiment Station (U.S.)
Publisher :
ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.X/5 (1 download)
Download or read book Durability and Behavior of Prestressed Concrete Beams written by Waterways Experiment Station (U.S.) and published by . This book was released on 1961 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Edward F. O'Neil
Publisher :
ISBN 13 :
Total Pages : 37 pages
Book Rating : 4.:/5 (965 download)
Download or read book Durability and Behavior of Prestressed Concrete Beams written by Edward F. O'Neil and published by . This book was released on 1976 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Edward F. O'Neil
Publisher :
ISBN 13 :
Total Pages : 177 pages
Book Rating : 4.:/5 (227 download)
Download or read book Durability and Behavior of Prestressed Concrete Beams. Report 4. Posttensioned Concrete Beam Investigation with Laboratory Tests from June 1961 to September 1975 written by Edward F. O'Neil and published by . This book was released on 1977 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is the fourth in a series describing a study which is being conducted to develop information on the durability of prestressed concrete beams. Twenty posttensioned concrete beams were cast and installed at the Treat Island exposure station. The beams were cast around four different types of posttensioning systems, with the posttensioning reinforcement cast at four different eccentricities. Twelve different types of end anchorage protection were cast over external and flush anchorages. The end anchorage protection was attached to the beam with four different types of joint preparation. The beams were subjected to tidal inundations (wetting and drying) two times each day and also to an average of 131 cycles of freezing and thawing per winter for a test period of 12 to 13 winters. During the fall of 1973, five beams were returned to the U.S. Army Engineer Waterways Experiment Station for autopsy and testing. The testing included: (a) structural testing, visual evaluation of the condition, and dissection of the concrete beams; (b) visual evaluation of the end anchorages and the posttensioning conduit; (c) autopsy of the posttensioning system; (d) structural testing of the posttensioning strands; (e) analysis of the products of corrosion on the steel strands; and (f) analysis of the concrete and grout of the beams.
Author : Waterways Experiment Station (U.S.)
Publisher :
ISBN 13 :
Total Pages : 114 pages
Book Rating : 4.:/5 (359 download)
Download or read book Durability and Behavior of Pretensioned-prestressed Concrete Beams written by Waterways Experiment Station (U.S.) and published by . This book was released on 1963 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : E. F. O'Neil
Publisher :
ISBN 13 :
Total Pages : 46 pages
Book Rating : 4.:/5 (227 download)
Download or read book Durability and Behavior of Prestressed Concrete Beams. Report 6. Posttensioned Concrete Beam Investigation, Supplemental Laboratory Tests of Beams Exposed from 1961 to 1982 written by E. F. O'Neil and published by . This book was released on 1984 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is the sixth in a series describing a study being conducted to develop information on the durability of prestressed concrete beams. This phase of the study is concerned with field and laboratory testing and with observation of posttensioning systems including end anchorages, end anchorage protection, posttensioning conduit, and posttensioning wires. In June 1961, 20 air-entrained, posttensioned concrete beams were placed at the Treat Island, Maine, exposure station. The beams were fabricated using four different types of posttensioning systems with 12 different types of end anchorage protection over external and flush anchorages. End anchorage protection was attached to the beams using six different types of joint preparation: bush-hammering, epoxy adhesive on sandblasted surface, retarding agent, sandblasted, sandblasted with primer, and no preparation. The end protections were made from three different mixtures: portland-cement concrete, epoxy concrete, and sand mortar. Eight beams were returned to the Waterways Experiment Station (WES) for autopsy and testing in September 1973 and December 1974. These beams were tested to determine the effects of severe environment described above on the posttensioning system. In January 1983, three more beams were returned to WES from Treat Island for autopsy and additional testing. The results of these additional tests are the subject of this investigation. If no further tests are made on the nine posttensioned beams that remain at Treat Island, this report will be the final report in the series.
