Methods Of Preparing Horizontal Construction Joints In Mass Concrete
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Methods Of Preparing Horizontal Construction Joints In Mass Concrete
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Author : Billy D. Neeley
language : en
Publisher:
Release Date : 1998
Methods Of Preparing Horizontal Construction Joints In Mass Concrete written by Billy D. Neeley and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Concrete construction categories.
Methods Of Preparing Horizontal Construction Joints In Mass Concrete
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Author : Billy D. Neeley
language : en
Publisher: Washington, DC : U.S. Army Corps of Engineers
Release Date : 1996
Methods Of Preparing Horizontal Construction Joints In Mass Concrete written by Billy D. Neeley and has been published by Washington, DC : U.S. Army Corps of Engineers this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Concrete construction categories.
Methods Of Preparing Horizontal Construction Joints In Mass Concrete Report 2 Minimizing Laitance
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Author :
language : en
Publisher:
Release Date : 1998
Methods Of Preparing Horizontal Construction Joints In Mass Concrete Report 2 Minimizing Laitance written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.
This report presents the results of a research program examining the effects of different methods of preparing horizontal construction joints in mass concrete construction. The purpose of the research program was to confirm existing guidance or, if necessary, update it. This is the second and final report. The joint moisture conditions at the time of concrete placement were: (a) continuously moist, (b) dry, and (c) dry and then remoistened. There was no cleaning of the joint surface prior to placement of a second lift. The concrete mixture used in the first lift was proportioned to minimize bleeding and the resulting laitance. Jointed specimens were tested for direct tensile strength and shear strength. The results indicated that an addition of a small quantity of silica fume does decrease bleeding and reduce loose, flaky laitance. However, a smooth, somewhat glassy surface appears to interfere with the bonding of the next lift of concrete. Bond strengths are not as good as those when the horizontal construction joints are cleaned by high-pressure water cutting or by air-water cutting, and then allowed to dry approximately 24 hr immediately prior to placement of the next lift of concrete. This technique is not recommended. Current guidance concerning joint cleaning procedures should be followed.
Methods Of Preparing Horizontal Construction Joints In Mass Concrete Report 2 Minimizing Laitance
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Author : Neeley, Billy D
language : en
Publisher: Washington, DC : U.S. Army Corps of Engineers
Release Date : 1998
Methods Of Preparing Horizontal Construction Joints In Mass Concrete Report 2 Minimizing Laitance written by Neeley, Billy D and has been published by Washington, DC : U.S. Army Corps of Engineers this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Concrete construction Joints categories.
This report presents the results of a research program examining the effects of different methods of preparing horizontal construction joints in mass concrete construction. The purpose of the research program was to confirm existing guidance or, if necessary, update it. This is the second and final report. The joint moisture conditions at the time of concrete placement were: (a) continuously moist, (b) dry, and (c) dry and then remoistened. There was no cleaning of the joint surface prior to placement of a second lift. The concrete mixture used in the first lift was proportioned to minimize bleeding and the resulting laitance. Jointed specimens were tested for direct tensile strength and shear strength. The results indicated that an addition of a small quantity of silica fume does decrease bleeding and reduce loose, flaky laitance. However, a smooth, somewhat glassy surface appears to interfere with the bonding of the next lift of concrete. Bond strengths are not as good as those when the horizontal construction joints are cleaned by high-pressure water cutting or by air-water cutting, and then allowed to dry approximately 24 hr immediately prior to placement of the next lift of concrete. This technique is not recommended. Current guidance concerning joint cleaning procedures should be followed.
Investigation Of Methods Of Preparing Horizontal Construction Joints In Concrete
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Author : U.S. Army Engineer Waterways Experiment Station
language : en
Publisher:
Release Date : 1959
Investigation Of Methods Of Preparing Horizontal Construction Joints In Concrete written by U.S. Army Engineer Waterways Experiment Station and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1959 with Concrete construction categories.
Investigation Of Methods Of Preparing Horizontal Construction Joints In Concrete
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Author : William O. Tynes
language : en
Publisher:
Release Date : 1973
Investigation Of Methods Of Preparing Horizontal Construction Joints In Concrete written by William O. Tynes and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Concrete construction categories.
Technical Report
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Author :
language : en
Publisher:
Release Date : 1966
Technical Report written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with Hydraulic engineering categories.
Annual Summary Of Investigations In Support Of The Civil Works Program
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Author : Waterways Experiment Station (U.S.)
language : en
Publisher:
Release Date : 1961
Annual Summary Of Investigations In Support Of The Civil Works Program written by Waterways Experiment Station (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Concrete categories.
Aci Manual Of Concrete Practice
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Author : American Concrete Institute
language : en
Publisher:
Release Date : 2004
Aci Manual Of Concrete Practice written by American Concrete Institute and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Concrete categories.
Investigation Of Methods Of Preparing Horizontal Construction Joints In Concrete
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Author : William O. Tynes
language : en
Publisher:
Release Date : 1973
Investigation Of Methods Of Preparing Horizontal Construction Joints In Concrete written by William O. Tynes and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Concrete construction categories.