Experimental application of EPS concrete in the new prototype design of the concrete barrier

Hasan Jasim Mohammed, Muhammad Fauzi Mohd. Zain

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

A new concrete barrier (NCB) design that separates the opposing lanes in roads was presented and tested experimentally. The proposed design comprises three parts. The expanded polystyrene (EPS) beads were used to cast the outer parts with 15%, 30%, and 45% replacement from coarse aggregate by volume with silica fume substituted with 10% of cement. Four pressures were applied to the concrete barrier models (2.3, 3.2, 4.5, and 5.8 MPa), which are respectively equivalent to four operational speeds of the vehicles (50, 70, 100, and 130 km/h). Results showed that the failure occurred only in the outer part facing the strike force, and the other parts did not fail. The use of EPS beads with percentages of 15% and 30% was to absorb the impact loads in a good way, and these percentages are better than 45%. The results demonstrated little lateral deflection. Moreover, the EPS beads led little strains and facilitated to absorb the impact force. The new prototype of concrete barrier can be functional in roads with good energy dissipation, and it has conformed with the requirements of the crash concrete barrier test.

Original languageEnglish
Pages (from-to)312-342
Number of pages31
JournalConstruction and Building Materials
Volume124
DOIs
Publication statusPublished - 15 Oct 2016

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Polystyrenes
Concretes
Silica fume
Energy dissipation
Cements

Keywords

  • Concrete barrier
  • Design
  • EPS concrete
  • Impact test
  • Prototype

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

Cite this

Experimental application of EPS concrete in the new prototype design of the concrete barrier. / Mohammed, Hasan Jasim; Mohd. Zain, Muhammad Fauzi.

In: Construction and Building Materials, Vol. 124, 15.10.2016, p. 312-342.

Research output: Contribution to journalArticle

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