ACI 347R-14, Guide to Formwork for Concrete PDF Download

Author: ACI Committee 347--Formwork for Concrete
Publisher:
ISBN: 9780870319105
Category : Concrete construction
Languages : en
Pages : 32

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Author: Robert Leroy Peurifoy
Publisher:
ISBN:
Category : Concrete construction
Languages : en
Pages : 348

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Author: Mary Krumboltz Hurd
Publisher:
ISBN:
Category : Concrete construction
Languages : en
Pages : 0

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Author: Mary Krumboltz Hurd
Publisher:
ISBN:
Category : Concrete construction
Languages : en
Pages : 472

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Author: American Concrete Institute
Publisher:
ISBN:
Category : Building inspection
Languages : en
Pages : 286

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Author: P. G. Malone
Publisher:
ISBN:
Category : Building materials
Languages : en
Pages : 58

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Book Description
Permeable framework is a special class of lined formwork used to produce improvements in the strength and durability of concrete. The bracing and the liner in the formwork are engineered to resist the pressure of plastic (or fresh) concrete, but to allow trapped air and excess water to pass through and be removed during concrete placement and consolidation. The objective in using permeable formwork is to eliminate voids on the surface of the concrete (bug holes) and to increase the strength and durability of the concrete surface immediately behind the formwork. A review of permeable formwork and its use in placing concrete was conducted. Methods, techniques, and materials are discussed, and example applications are described. Benefits of using permeable formwork include a reduction in bug holes and surface defects, improved resistance to freezing and thawing, reduced rates of surface carbonation and chloride-ion infiltration, increased surface strength, reduced form coating requirements, reduced efforts in curing, and reduced surface preparation for coating. The cost of using permeable formwork varies greatly among job sites. However, the cost of using permeable formwork will generally be double that for conventional impermeable formwork. Cost savings can be realized in the extended life of any wooden formwork used behind the filter fabric, the ability to proceed without applying form-release compounds, the decreased cost of final surface preparation (if coatings are to be applied to the finished concrete), and the increased service life of the finished concrete.

Author: American Concrete Institute
Publisher: American Concrete Institute
ISBN: 087031176X
Category : Technology & Engineering
Languages : en
Pages : 32

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Author: ACI Committee 318
Publisher: American Concrete Institute
ISBN: 0870312642
Category : Building laws
Languages : en
Pages : 471

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Book Description
The quality and testing of materials used in construction are covered by reference to the appropriate ASTM standard specifications. Welding of reinforcement is covered by reference to the appropriate AWS standard. Uses of the Code include adoption by reference in general building codes, and earlier editions have been widely used in this manner. The Code is written in a format that allows such reference without change to its language. Therefore, background details or suggestions for carrying out the requirements or intent of the Code portion cannot be included. The Commentary is provided for this purpose. Some of the considerations of the committee in developing the Code portion are discussed within the Commentary, with emphasis given to the explanation of new or revised provisions. Much of the research data referenced in preparing the Code is cited for the user desiring to study individual questions in greater detail. Other documents that provide suggestions for carrying out the requirements of the Code are also cited.

Author: American Institute of Steel Construction
Publisher:
ISBN:
Category : Building, Iron and steel
Languages : en
Pages : 490

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Author: ACI Staff Compilation
Publisher:
ISBN: 9781641951159
Category :
Languages : en
Pages :

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