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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Autores principales: Zainab Ahmed Al-kaissi, Mohammed Hashim Mohammed, Nabaa Sattar Kareem
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Lenguaje:EN
Publicado: Al-Khwarizmi College of Engineering – University of Baghdad 2018
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Acceso en línea:https://doaj.org/article/4e524d041a5f4020951d4ef62ea31921
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spelling 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)
institution DOAJ
collection DOAJ
language EN
topic Steel dowel bars, jointed plain concrete pavement, load-deflection behavior, subgrade soil.
Chemical engineering
TP155-156
Engineering (General). Civil engineering (General)
TA1-2040
spellingShingle 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%.
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
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