Experimental Study on Doweled Expansion Joints on Behavior for Plain Concrete Pavement System
This paper deals with load-deflection behavior the jointed plain concrete pavement system using steel dowel bars as a mechanism to transmit load across the expansion joints. Experimentally, four models of the jointed plain concrete pavement system were made, each model consists of two slabs of plai...
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Al-Khwarizmi College of Engineering – University of Baghdad
2018
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oai:doaj.org-article:4e524d041a5f4020951d4ef62ea319212021-12-02T03:50:43ZExperimental Study on Doweled Expansion Joints on Behavior for Plain Concrete Pavement System10.22153/kej.2018.03.0011818-11712312-0789https://doaj.org/article/4e524d041a5f4020951d4ef62ea319212018-08-01T00:00:00Zhttp://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/91https://doaj.org/toc/1818-1171https://doaj.org/toc/2312-0789 This paper deals with load-deflection behavior the jointed plain concrete pavement system using steel dowel bars as a mechanism to transmit load across the expansion joints. Experimentally, four models of the jointed plain concrete pavement system were made, each model consists of two slabs of plain concrete that connected together across expansion by two dowel bars and the concrete slab were supported by the subgrade soil. Two variables were dealt with, the first is diameter of dowel bar (12, 16 and 20 mm) and the second is type of the subgrade soil, two types of soil were used which classified according to the (AASHTO): Type I (A-6) and type II (A-7-6). Experimental results showed that increasing dowel bar diameter from 12 mm to 20 mm has a little effect on load-deflection behavior of the tested specimens with only 5% increase in failure load. This may be attributed to that the failure (caused by flexural crack) depends mainly on concrete strength. Results also showed that decreasing CBR value of subgrade soil from 7% to 5% decreases failure load by about 33%. Zainab Ahmed Al-kaissiMohammed Hashim MohammedNabaa Sattar KareemAl-Khwarizmi College of Engineering – University of BaghdadarticleSteel dowel bars, jointed plain concrete pavement, load-deflection behavior, subgrade soil.Chemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 14, Iss 3 (2018) |
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Steel dowel bars, jointed plain concrete pavement, load-deflection behavior, subgrade soil. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 |
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Steel dowel bars, jointed plain concrete pavement, load-deflection behavior, subgrade soil. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Zainab Ahmed Al-kaissi Mohammed Hashim Mohammed Nabaa Sattar Kareem Experimental Study on Doweled Expansion Joints on Behavior for Plain Concrete Pavement System |
description |
This paper deals with load-deflection behavior the jointed plain concrete pavement system using steel dowel bars as a mechanism to transmit load across the expansion joints. Experimentally, four models of the jointed plain concrete pavement system were made, each model consists of two slabs of plain concrete that connected together across expansion by two dowel bars and the concrete slab were supported by the subgrade soil. Two variables were dealt with, the first is diameter of dowel bar (12, 16 and 20 mm) and the second is type of the subgrade soil, two types of soil were used which classified according to the (AASHTO): Type I (A-6) and type II (A-7-6). Experimental results showed that increasing dowel bar diameter from 12 mm to 20 mm has a little effect on load-deflection behavior of the tested specimens with only 5% increase in failure load. This may be attributed to that the failure (caused by flexural crack) depends mainly on concrete strength. Results also showed that decreasing CBR value of subgrade soil from 7% to 5% decreases failure load by about 33%.
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format |
article |
author |
Zainab Ahmed Al-kaissi Mohammed Hashim Mohammed Nabaa Sattar Kareem |
author_facet |
Zainab Ahmed Al-kaissi Mohammed Hashim Mohammed Nabaa Sattar Kareem |
author_sort |
Zainab Ahmed Al-kaissi |
title |
Experimental Study on Doweled Expansion Joints on Behavior for Plain Concrete Pavement System |
title_short |
Experimental Study on Doweled Expansion Joints on Behavior for Plain Concrete Pavement System |
title_full |
Experimental Study on Doweled Expansion Joints on Behavior for Plain Concrete Pavement System |
title_fullStr |
Experimental Study on Doweled Expansion Joints on Behavior for Plain Concrete Pavement System |
title_full_unstemmed |
Experimental Study on Doweled Expansion Joints on Behavior for Plain Concrete Pavement System |
title_sort |
experimental study on doweled expansion joints on behavior for plain concrete pavement system |
publisher |
Al-Khwarizmi College of Engineering – University of Baghdad |
publishDate |
2018 |
url |
https://doaj.org/article/4e524d041a5f4020951d4ef62ea31921 |
work_keys_str_mv |
AT zainabahmedalkaissi experimentalstudyondoweledexpansionjointsonbehaviorforplainconcretepavementsystem AT mohammedhashimmohammed experimentalstudyondoweledexpansionjointsonbehaviorforplainconcretepavementsystem AT nabaasattarkareem experimentalstudyondoweledexpansionjointsonbehaviorforplainconcretepavementsystem |
_version_ |
1718401599173296128 |