Evaluation of Grouting Materials for Anchor Embedments in Hardened Concrete PDF Download
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Author: Willie E. McDonald
Publisher:
ISBN:
Category : Grout (Mortar)
Languages : en
Pages : 88
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Book Description
Rehabilitation of civil works hydraulic concrete structures such as navigation locks or stilling basins commonly involves the removal of defective concrete and replacement with new concrete. Steel reinforcing anchors are normally embedded into the base concrete to assist in the attachment of the base concrete to the new concrete. With respect to bonding the steel anchors into the base concrete, this investigation was conducted to evaluate the effectiveness of cementitious, vinylester and epoxy grouts in bonding embedment of the anchors. Tensile pullout and long-term creep strain tests were accomplished in this study in correlation with parameters for dry and wet environments and for bond maturity ages of 1, 3,7, and 28 days and 1 year. Tests results indicated all of the grout materials developed sufficient bond strength in pullout and creep tests for dry applications, with the exception of one epoxy material. However, for submerged applications, the epoxy grouts exhibited poor developed bond strength in both pullout and creep tests. As a result, particular caution is recommended for the application of epoxy grouts to embed steel anchors in hardened concrete under submerged conditions.
Author: Willie E. McDonald
Publisher:
ISBN:
Category : Grout (Mortar)
Languages : en
Pages : 88
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Book Description
Rehabilitation of civil works hydraulic concrete structures such as navigation locks or stilling basins commonly involves the removal of defective concrete and replacement with new concrete. Steel reinforcing anchors are normally embedded into the base concrete to assist in the attachment of the base concrete to the new concrete. With respect to bonding the steel anchors into the base concrete, this investigation was conducted to evaluate the effectiveness of cementitious, vinylester and epoxy grouts in bonding embedment of the anchors. Tensile pullout and long-term creep strain tests were accomplished in this study in correlation with parameters for dry and wet environments and for bond maturity ages of 1, 3,7, and 28 days and 1 year. Tests results indicated all of the grout materials developed sufficient bond strength in pullout and creep tests for dry applications, with the exception of one epoxy material. However, for submerged applications, the epoxy grouts exhibited poor developed bond strength in both pullout and creep tests. As a result, particular caution is recommended for the application of epoxy grouts to embed steel anchors in hardened concrete under submerged conditions.
Author: Ravindra K. Dhir
Publisher: Thomas Telford
ISBN: 9780727728258
Category : Technology & Engineering
Languages : en
Pages : 512
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Book Description
Concrete will be the key material for Mankind to create the built environment of the next millennium. The requirements of this infrastructure will be both demanding, in terms of technical performance and economy, and yet be greatly varied, from architectural masterpieces to the simplest of utilities.Specialist techniques and materials for concrete construction forms the Proceedings of the three day international conference held during the Congress, creating with concrete, 6-10 September 1999, organised by the Concrete technology unit, University of Dundee.
Author: Institution of Civil Engineers (Great Britain)
Publisher: Thomas Telford
ISBN: 9780727726070
Category : Technology & Engineering
Languages : en
Pages : 662
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Book Description
This volume presents the proceedings of the first major international conference for over twenty years on the state-of-the-art of ground anchorage technology. Practical issues relating to construction and installation of anchorages are considered in a series of examples of engineering projects from around the world.
Author: Ken Pin Chong
Publisher:
ISBN:
Category : Composite materials
Languages : en
Pages : 1494
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Book Description
Author:
Publisher:
ISBN:
Category : Civil engineering
Languages : en
Pages : 582
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Book Description
Author:
Publisher:
ISBN:
Category : Public works
Languages : en
Pages : 14
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Book Description
Author: James E. McDonald
Publisher:
ISBN:
Category : Anchorage (Structural engineering)
Languages : en
Pages : 46
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Book Description
Author:
Publisher:
ISBN:
Category : Electric power production
Languages : en
Pages : 568
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Book Description
Author: American Society of Civil Engineers
Publisher:
ISBN:
Category : Civil engineering
Languages : en
Pages : 1116
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Book Description
Indexes materials appearing in the Society's Journals, Transactions, Manuals and reports, Special publications, and Civil engineering.
Author: Abid A. Mir
Publisher:
ISBN:
Category : Bars (Engineering).
Languages : en
Pages : 202
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Book Description
Test results of threaded rod and reinforcing bars bonded with either polyester resin capsules, vinylester resin capsules, portland cement grout or magnesium phosphate concrete are presented. Tests included tension tests, shear tests, combined tension-shear tests, and creep tests at elevated temperatures. The parameters evaluated were edge distance, embedment depth, effect of elevated temperature on tension load, and the interaction of tension and shear. Tables listing allowable shear and tension loads have been prepared for each bonding material. An interaction equation for anchors loaded in both tension and shear is also given.
