Experimental study and statistical modeling of roller compacted concrete pavement behavior containing waste PET particles, recycled fibers and metakaolin powder

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NOROOZI ALI REZA; SHAFABAKHSH GHOLAMALI; KHEYRODDIN ALI; MOHAMMADZADEH MOGHADDAM ABOLFAZL

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Journal: JOURNAL OF TRANSPORTATION INFRASTRUCTURE ENGINEERING (JTIE) Year:2019 | Volume:5 | Issue:2 (18) Page(s): 35-56

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Title

Experimental study and statistical modeling of roller compacted concrete pavement behavior containing waste PET particles, recycled fibers and metakaolin powder

Author(s)

NOROOZI ALI REZA | SHAFABAKHSH GHOLAMALI | KHEYRODDIN ALI | MOHAMMADZADEH MOGHADDAM ABOLFAZL | Issue Writer Certificate

Keywords

Roller compacted concrete pavementQ2

Recycled PET particleQ1

MetakaolinQ2

Shredded recycled steel fiberQ1

Response surface methodologyQ1

Abstract

This study examined the possibility of using PET aggregates as a partial substitute for natural fine-grained aggregates in Roller compacted concrete pavement (RCCP) mixtures. To enhance the performance of RCCP, the mixtures were also modified by using pozzolanic Metakaolin (MK) as a partial substitute for cement and adding steel fibers obtained from the recycling of worn vehicle tires. The Response surface methodology (RSM), which is capable of predicting the variations of a response value in the variations range of independent variables, was used to cover all possible mix compositions. Using this method, 20 mix designs were prepared, which allowed for significant time and cost saving in experiments without sacrificing thoroughness. The behavior and characteristics of RCCP specimens in terms of water absorption, ultrasonic pulse velocity and compressive strength at the age of 7 and 28 days were investigated. The obtained responses were used to develop statistical models, which were then utilized in the optimization of mix design with the help of analysis of variance. The results showed that the use of PET aggregates increased water absorption and decreased the compressive and flexural strength of the RCCP specimens. Partial replacement of cement with MK generally improved the performance of the specimens. The effect of Shredded recycled steel fibers (SRSF) was generally dependent on other components of the mixture. The optimal mix design obtained from the statistical models involves replacing 29vol% of fine aggregate with PET, replacing 20wt% of cement with MK powder, and adding 2wt% SRSF to the mixture. The proposed mix design contributes to clean recycling of PET and conservation of natural resources and reduces the cost and carbon footprint of RCCP construction with considering the standard requirements for pavement structures.

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APA: Copy

NOROOZI, ALI REZA, SHAFABAKHSH, GHOLAMALI, KHEYRODDIN, ALI, & MOHAMMADZADEH MOGHADDAM, ABOLFAZL. (2019). Experimental study and statistical modeling of roller compacted concrete pavement behavior containing waste PET particles, recycled fibers and metakaolin powder. JOURNAL OF TRANSPORTATION INFRASTRUCTURE ENGINEERING (JTIE), 5(2 (18) ), 35-56. SID. https://sid.ir/paper/251524/en

Vancouver: Copy

NOROOZI ALI REZA, SHAFABAKHSH GHOLAMALI, KHEYRODDIN ALI, MOHAMMADZADEH MOGHADDAM ABOLFAZL. Experimental study and statistical modeling of roller compacted concrete pavement behavior containing waste PET particles, recycled fibers and metakaolin powder. JOURNAL OF TRANSPORTATION INFRASTRUCTURE ENGINEERING (JTIE)[Internet]. 2019;5(2 (18) ):35-56. Available from: https://sid.ir/paper/251524/en

IEEE: Copy

ALI REZA NOROOZI, GHOLAMALI SHAFABAKHSH, ALI KHEYRODDIN, and ABOLFAZL MOHAMMADZADEH MOGHADDAM, “Experimental study and statistical modeling of roller compacted concrete pavement behavior containing waste PET particles, recycled fibers and metakaolin powder,” JOURNAL OF TRANSPORTATION INFRASTRUCTURE ENGINEERING (JTIE), vol. 5, no. 2 (18) , pp. 35–56, 2019, [Online]. Available: https://sid.ir/paper/251524/en

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