ACI 207.2R
Report on Thermal and Volume Change Effects on Cracking of Mass Concrete
سال
: 2007-09-01
چکیده: This report is primarily concerned with evaluating the thermal
behavior of mass concrete structures to control the cracking in
members that occurs principally from thermal contraction with
restraint. This report presents a detailed discussion of the
effects of heat generation and volume changes on the design and
behavior of mass concrete elements and structures, a variety of
methods to compute heat dissipation and volume changes, and an
approach to determine mass and surface gradient stresses. It is
written primarily to provide guidance for the selection of concrete
materials, mixture requirements, and construction procedures
necessary to control the size and spacing of cracks. The quality of
concrete for resistance to weathering is not emphasized in
recommending reduced cement contents; however, it should be
understood that the concrete should be sufficiently durable to
resist expected service conditions. This report can be applied to
most concrete structures with a potential for unacceptable
cracking. Its general application has been to massive concrete
members 18 in. (460 mm) or more in thickness; it is also relevant
for less massive concrete members.
کالکشن
:
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آمار بازدید
ACI 207.2R
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date accessioned | 2020-05-27T08:35:04Z | |
date available | 2020-05-27T08:35:04Z | |
date issued | 2007-09-01 | |
identifier uri | http://libsearch.um.ac.ir:80/fum/handle/fum/3225743 | |
description abstract | This report is primarily concerned with evaluating the thermal behavior of mass concrete structures to control the cracking in members that occurs principally from thermal contraction with restraint. This report presents a detailed discussion of the effects of heat generation and volume changes on the design and behavior of mass concrete elements and structures, a variety of methods to compute heat dissipation and volume changes, and an approach to determine mass and surface gradient stresses. It is written primarily to provide guidance for the selection of concrete materials, mixture requirements, and construction procedures necessary to control the size and spacing of cracks. The quality of concrete for resistance to weathering is not emphasized in recommending reduced cement contents; however, it should be understood that the concrete should be sufficiently durable to resist expected service conditions. This report can be applied to most concrete structures with a potential for unacceptable cracking. Its general application has been to massive concrete members 18 in. (460 mm) or more in thickness; it is also relevant for less massive concrete members. | |
language | English | |
title | ACI 207.2R | num |
title | Report on Thermal and Volume Change Effects on Cracking of Mass Concrete | |
type | Standard | |
contenttype | Fulltext | |
pages | 32 | |
organisation abbrivate | ACI | |
standard organization | ACI - American Concrete Institute |