“Green” Pavement Overlays: Part I: Flexural Performance of Composite Beams on Elastic Foundation

John Karadelis, Yougui Lin, Yi Xu

Research output: Contribution to journalArticle

Abstract

Beams were rested on (a): rubber foundation (RF) and (b): cement stabilized aggregate foundation (CF), as part of the “Green” Pavement Overlays research programme.
The composite beams on a rubber pad foundation exhibited a load-drop after cracking of the base. Plain ordinary Portland cement concrete (OPCC) beams exhibited a peak load and failed soon after. Steel Fibre Reinforced Concrete (SFRC) beams exhibited much higher load bearing capacity than their OPCC counterparts. The augmented load carrying capacity noticed was attributed mainly to the reaction of the foundation.
Parmerter’s theory combined with Winkler’s foundation model are suitable for modelling OPCC beams on elastic foundations but not suitable for SFRC beams. However, the load bearing capacity of OPCC beams can be predicted by the above.
The elastic solid foundation model is suitable for modelling SFRC beams on elastic foundations. Finite Element Analysis is recommended to assist tests in establishing the load-CMOD (Cracked Mouth Opening Displacement) relationship. Modelling load-CMOD using this method, was in good agreement with experimental results.
Regarding SFRC-on-OPCC beams, a method for calculating the cracking load of OPCC base and the particular load value for crack entry into the SFRC overlay, was proposed and verified experimentally. This method combines Parmerter’s cracked beam theory and the principle of equivalent flexural rigidity.
Original languageEnglish
Pages (from-to)40-54
Number of pages15
JournalThe International Journal of Pavement Engineering and Asphalt Technology
Volume18
Issue number2
Early online dateDec 2017
DOIs
Publication statusPublished - Dec 2017

Fingerprint

Pavement overlays
Portland cement
Steel fibers
Reinforced concrete
Composite materials
Concretes
Bearing capacity
Loads (forces)
Rubber
Load limits
Rigidity
Cements
Cracks
Finite element method

Keywords

  • composite materials
  • concrete pavement
  • steel fibre reinforced
  • flexural behaviour
  • elastic foundation

Cite this

@article{05a34fba35f04779951a15d58cfcdc13,
title = "“Green” Pavement Overlays: Part I: Flexural Performance of Composite Beams on Elastic Foundation",
abstract = "Beams were rested on (a): rubber foundation (RF) and (b): cement stabilized aggregate foundation (CF), as part of the “Green” Pavement Overlays research programme.The composite beams on a rubber pad foundation exhibited a load-drop after cracking of the base. Plain ordinary Portland cement concrete (OPCC) beams exhibited a peak load and failed soon after. Steel Fibre Reinforced Concrete (SFRC) beams exhibited much higher load bearing capacity than their OPCC counterparts. The augmented load carrying capacity noticed was attributed mainly to the reaction of the foundation.Parmerter’s theory combined with Winkler’s foundation model are suitable for modelling OPCC beams on elastic foundations but not suitable for SFRC beams. However, the load bearing capacity of OPCC beams can be predicted by the above.The elastic solid foundation model is suitable for modelling SFRC beams on elastic foundations. Finite Element Analysis is recommended to assist tests in establishing the load-CMOD (Cracked Mouth Opening Displacement) relationship. Modelling load-CMOD using this method, was in good agreement with experimental results.Regarding SFRC-on-OPCC beams, a method for calculating the cracking load of OPCC base and the particular load value for crack entry into the SFRC overlay, was proposed and verified experimentally. This method combines Parmerter’s cracked beam theory and the principle of equivalent flexural rigidity.",
keywords = "composite materials, concrete pavement, steel fibre reinforced, flexural behaviour, elastic foundation",
author = "John Karadelis and Yougui Lin and Yi Xu",
year = "2017",
month = "12",
doi = "10.1515/ijpeat-2016-0015",
language = "English",
volume = "18",
pages = "40--54",
journal = "The International Journal of Pavement Engineering and Asphalt Technology",
issn = "1464-8164",
number = "2",

}

TY - JOUR

T1 - “Green” Pavement Overlays

T2 - Part I: Flexural Performance of Composite Beams on Elastic Foundation

AU - Karadelis, John

AU - Lin, Yougui

AU - Xu, Yi

PY - 2017/12

Y1 - 2017/12

N2 - Beams were rested on (a): rubber foundation (RF) and (b): cement stabilized aggregate foundation (CF), as part of the “Green” Pavement Overlays research programme.The composite beams on a rubber pad foundation exhibited a load-drop after cracking of the base. Plain ordinary Portland cement concrete (OPCC) beams exhibited a peak load and failed soon after. Steel Fibre Reinforced Concrete (SFRC) beams exhibited much higher load bearing capacity than their OPCC counterparts. The augmented load carrying capacity noticed was attributed mainly to the reaction of the foundation.Parmerter’s theory combined with Winkler’s foundation model are suitable for modelling OPCC beams on elastic foundations but not suitable for SFRC beams. However, the load bearing capacity of OPCC beams can be predicted by the above.The elastic solid foundation model is suitable for modelling SFRC beams on elastic foundations. Finite Element Analysis is recommended to assist tests in establishing the load-CMOD (Cracked Mouth Opening Displacement) relationship. Modelling load-CMOD using this method, was in good agreement with experimental results.Regarding SFRC-on-OPCC beams, a method for calculating the cracking load of OPCC base and the particular load value for crack entry into the SFRC overlay, was proposed and verified experimentally. This method combines Parmerter’s cracked beam theory and the principle of equivalent flexural rigidity.

AB - Beams were rested on (a): rubber foundation (RF) and (b): cement stabilized aggregate foundation (CF), as part of the “Green” Pavement Overlays research programme.The composite beams on a rubber pad foundation exhibited a load-drop after cracking of the base. Plain ordinary Portland cement concrete (OPCC) beams exhibited a peak load and failed soon after. Steel Fibre Reinforced Concrete (SFRC) beams exhibited much higher load bearing capacity than their OPCC counterparts. The augmented load carrying capacity noticed was attributed mainly to the reaction of the foundation.Parmerter’s theory combined with Winkler’s foundation model are suitable for modelling OPCC beams on elastic foundations but not suitable for SFRC beams. However, the load bearing capacity of OPCC beams can be predicted by the above.The elastic solid foundation model is suitable for modelling SFRC beams on elastic foundations. Finite Element Analysis is recommended to assist tests in establishing the load-CMOD (Cracked Mouth Opening Displacement) relationship. Modelling load-CMOD using this method, was in good agreement with experimental results.Regarding SFRC-on-OPCC beams, a method for calculating the cracking load of OPCC base and the particular load value for crack entry into the SFRC overlay, was proposed and verified experimentally. This method combines Parmerter’s cracked beam theory and the principle of equivalent flexural rigidity.

KW - composite materials

KW - concrete pavement

KW - steel fibre reinforced

KW - flexural behaviour

KW - elastic foundation

U2 - 10.1515/ijpeat-2016-0015

DO - 10.1515/ijpeat-2016-0015

M3 - Article

VL - 18

SP - 40

EP - 54

JO - The International Journal of Pavement Engineering and Asphalt Technology

JF - The International Journal of Pavement Engineering and Asphalt Technology

SN - 1464-8164

IS - 2

ER -