The influence of compound layers on the mechanical properties and frost resistance of roller compacted concrete pavement

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Abdolahzade Shahriar; NILI MAHMOUD

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Journal: JOURNAL OF CONCRETE RESEARCH Year:2019 | Volume:12 | Issue:3 Page(s): 17-28

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Title

The influence of compound layers on the mechanical properties and frost resistance of roller compacted concrete pavement

Author(s)

Abdolahzade Shahriar | NILI MAHMOUD | Issue Writer Certificate

Keywords

Roller compacted concrete pavementQ2

compressive strengthQ1

freeze-thaw cyclesQ1

supplementary cementitious materialQ1

compound layerQ1

Abstract

Nowadays, Roller compacted concrete pavement, (RCCP), is becoming popular due to the lower cost of construction, repair, and maintenance compared with those for normal concrete. However, due to the roughness of the RCCP surface, its use in highway roads is limited. In the present paper, the effects of two different compound layers on mechanical and frost resistance of RCCP were investigated. Slag and silica fume as two supplementary cementitious materials were used as a partial replacement for cement in the predetermined mixtures. Hot mix asphalt (HMA) and air-entrained concrete (AEC) were used as compound layer. The mixtures were suffered under freeze-thaw cycles in the present of de-icing salt. The compressive strength and the connection resistance between the compound layers and RCCP after freeze-thaw cycles were evaluated via slant shear and splitting tensile tests. The results indicated that the addition of slag reduced both compressive strength and salt scaling resistance. On the contrary, silica fume improved compressive strength and particularly salt scaling resistance of the specimens. The results also showed that the connection resistance of the specimens was reduced, due to freeze-thaw cycles in the presence of the de-icing agent, about 12% and 10% for HMA and AEC layers, respectively.

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APA: Copy

Abdolahzade, Shahriar, & NILI, MAHMOUD. (2019). The influence of compound layers on the mechanical properties and frost resistance of roller compacted concrete pavement. JOURNAL OF CONCRETE RESEARCH, 12(3 ), 17-28. SID. https://sid.ir/paper/197214/en

Vancouver: Copy

Abdolahzade Shahriar, NILI MAHMOUD. The influence of compound layers on the mechanical properties and frost resistance of roller compacted concrete pavement. JOURNAL OF CONCRETE RESEARCH[Internet]. 2019;12(3 ):17-28. Available from: https://sid.ir/paper/197214/en

IEEE: Copy

Shahriar Abdolahzade, and MAHMOUD NILI, “The influence of compound layers on the mechanical properties and frost resistance of roller compacted concrete pavement,” JOURNAL OF CONCRETE RESEARCH, vol. 12, no. 3 , pp. 17–28, 2019, [Online]. Available: https://sid.ir/paper/197214/en

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