ACI 224R
Control of Cracking in Concrete Structures
Organization:
ACI - American Concrete Institute
Year: 2001
Abstract: Cracks in concrete structures can indicate major structural problems and detract from the appearance of monolithic construction. There are many specific causes of cracking. This report presents the principal causes of cracking and a detailed discussion of crack-control procedures. The report consists of eight chapters designed to help the engineer and the contractor in developing crack-control measures.
This report is an update of previous committee reports (ACI Committee 224 1972, 1980, 1990). ACI Bibliography No. 9 supplemented the original ACI 224R (1971). The Committee has also prepared reports on the causes, evaluation, and repair of cracking, ACI 224.1R; cracking of concrete in direct tension, ACI 224.2R; and joints in concrete construction, ACI 224.3R.
In this revision of the report, Chapter 2 on crack mechanisms has been revised extensively to reflect the interest and attention given to aspects of fracture mechanics of concrete during the 1980s. Chapter 3 on drying shrinkage has been rewritten. Chapter 4 has been revised to include updated information on crack-width predictive equations, cracking in partially prestressed members, anchorage zone cracking, and flexural cracking in deep flexural members. Chapter 6 on concrete overlays has been reorganized and revised in modest detail to account for updated information on fiber reinforcement and on polymer-modified concrete. Chapter 7 on mass concrete has been revised to consider structural consequences more extensively.
This report is an update of previous committee reports (ACI Committee 224 1972, 1980, 1990). ACI Bibliography No. 9 supplemented the original ACI 224R (1971). The Committee has also prepared reports on the causes, evaluation, and repair of cracking, ACI 224.1R; cracking of concrete in direct tension, ACI 224.2R; and joints in concrete construction, ACI 224.3R.
In this revision of the report, Chapter 2 on crack mechanisms has been revised extensively to reflect the interest and attention given to aspects of fracture mechanics of concrete during the 1980s. Chapter 3 on drying shrinkage has been rewritten. Chapter 4 has been revised to include updated information on crack-width predictive equations, cracking in partially prestressed members, anchorage zone cracking, and flexural cracking in deep flexural members. Chapter 6 on concrete overlays has been reorganized and revised in modest detail to account for updated information on fiber reinforcement and on polymer-modified concrete. Chapter 7 on mass concrete has been revised to consider structural consequences more extensively.
Subject: aggregates
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contributor author | ACI - American Concrete Institute | |
date accessioned | 2017-09-04T17:46:18Z | |
date available | 2017-09-04T17:46:18Z | |
date copyright | 01/01/2001 | |
date issued | 2001 | |
identifier other | ELQFUAAAAAAAAAAA.pdf | |
identifier uri | http://yse.yabesh.ir/std/handle/yse/169501 | |
description abstract | Cracks in concrete structures can indicate major structural problems and detract from the appearance of monolithic construction. There are many specific causes of cracking. This report presents the principal causes of cracking and a detailed discussion of crack-control procedures. The report consists of eight chapters designed to help the engineer and the contractor in developing crack-control measures. This report is an update of previous committee reports (ACI Committee 224 1972, 1980, 1990). ACI Bibliography No. 9 supplemented the original ACI 224R (1971). The Committee has also prepared reports on the causes, evaluation, and repair of cracking, ACI 224.1R; cracking of concrete in direct tension, ACI 224.2R; and joints in concrete construction, ACI 224.3R. In this revision of the report, Chapter 2 on crack mechanisms has been revised extensively to reflect the interest and attention given to aspects of fracture mechanics of concrete during the 1980s. Chapter 3 on drying shrinkage has been rewritten. Chapter 4 has been revised to include updated information on crack-width predictive equations, cracking in partially prestressed members, anchorage zone cracking, and flexural cracking in deep flexural members. Chapter 6 on concrete overlays has been reorganized and revised in modest detail to account for updated information on fiber reinforcement and on polymer-modified concrete. Chapter 7 on mass concrete has been revised to consider structural consequences more extensively. | |
language | English | |
title | ACI 224R | num |
title | Control of Cracking in Concrete Structures | en |
type | standard | |
page | 46 | |
status | Active | |
tree | ACI - American Concrete Institute:;2001 | |
contenttype | fulltext | |
subject keywords | aggregates | |
subject keywords | anchorage (structural) | |
subject keywords | bridge decks | |
subject keywords | cement-aggregate reactions | |
subject keywords | concrete construction | |
subject keywords | concrete pavements | |
subject keywords | concrete slabs | |
subject keywords | cooling | |
subject keywords | corrosion | |
subject keywords | crack propagation | |
subject keywords | crack width and spacing | |
subject keywords | cracking (fracturing) | |
subject keywords | drying shrinkage | |
subject keywords | heat of hydration | |
subject keywords | mass concrete | |
subject keywords | microcracking | |
subject keywords | polymer-modified concrete | |
subject keywords | prestressed concrete | |
subject keywords | reinforced concrete | |
subject keywords | restraint | |
subject keywords | shrinkage | |
subject keywords | shrinkage-compensating concrete | |
subject keywords | temperature | |
subject keywords | tensile stresses | |
subject keywords | thermal expansion | |
subject keywords | volume change |