FEASIBILITY STUDY OF CONCRETE RECYCLING IN POST-DISASTER RECONSTRUCTION

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SARTIPIPOUR FARID

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Journal: Housing and Rural Environment Year:2016 | Volume:34 | Issue:152 Page(s): 31-42

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Title

FEASIBILITY STUDY OF CONCRETE RECYCLING IN POST-DISASTER RECONSTRUCTION

Author(s)

SARTIPIPOUR FARID | Issue Writer Certificate

Keywords

RECYCLED CONCRETEQ1

SUSTAINABLE DEVELOPMENTQ2

ENERGY SAVINGQ2

Abstract

Reusing concrete that is obtained through recycling provides significant environmental and economic benefits. Approximately, 25 billion tons of concrete is produced annually that is 3.8 tons per capita worldwide. In Iran, the booming construction as well as decayed urban fabric renovation and reconstruction have caused pure aggregate mines to diminish and increasing amount of wasted construction materials. As a result, the significance of recycling wasted materials is further emphasized especially since there are huge amount of fresh and used wasted during production process as well as great amount of remained concrete after disasters. Reduction in usage of pure aggregates, landfill disposal for the wasted concrete and CO2 emission in comparison to processing and transporting new aggregates are among the advantages of recycling wasted concrete. This study attempts to present a new perspective of using recycled aggregates for a better sustainable planning by gathering and processing past data producing new results to pave the way for RECYCLED CONCRETE applicability in Iran.Earthquake stricken city of Bam Post-Disaster management is a good case in order to determine how recycling waste materials could significantly reduce costs. According to a report from “Bonyad-e-Maskan” housing foundation, A thousand trucks were needed to transport and dispose twelve million tons of wasted material, which costed 3.375 million dollar for the government. However, this could have been greatly reduced by using recycling plant sites in different places of city.The other case for transportation in cycle time reduction is the renovation project of Eden Highway in 1950 in USA. The study showed that in case of using recycled aggregates for repairing the surface of the road, the constructors could have saved 85% of their trips to infill sites.Many methods are available for recycling wasted materials especially for concrete recycling among which, is rubbing and crushing wasted material to obtain aggregates is very common. Studies show that the water absorption of these aggregates made of different sizes is more than pure ones, which leads to heighten the W/C ratio. In addition, the resistance of concrete made by recycled aggregates could be stabilized by replacing 10% of recycled aggregates. The Germans engineers measured the percentage of 45 for allowable replacement needs to maintain the resistance. Other recycling methods include electrical shocks, Heating methods and using microwave radiation. HRM (Heating and Rubbing Method) is also one of the optimized ways of recycling.In conclusion, there are numerous advantages in recycling waste materials. Aggregates from recycling process used in sub-base layer of road pavements could be used for RECYCLED CONCRETE in case of disaster by using HRM powder (product of HRM process).

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استفاده از زواید و ضایعات صنعتی و مدنی در تولید مصالح ساختمانی

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APA: Copy

SARTIPIPOUR, FARID. (2016). FEASIBILITY STUDY OF CONCRETE RECYCLING IN POST-DISASTER RECONSTRUCTION. HOUSING AND RURAL ENVIRONMENT, 34(152), 31-42. SID. https://sid.ir/paper/186105/en

Vancouver: Copy

SARTIPIPOUR FARID. FEASIBILITY STUDY OF CONCRETE RECYCLING IN POST-DISASTER RECONSTRUCTION. HOUSING AND RURAL ENVIRONMENT[Internet]. 2016;34(152):31-42. Available from: https://sid.ir/paper/186105/en

IEEE: Copy

FARID SARTIPIPOUR, “FEASIBILITY STUDY OF CONCRETE RECYCLING IN POST-DISASTER RECONSTRUCTION,” HOUSING AND RURAL ENVIRONMENT, vol. 34, no. 152, pp. 31–42, 2016, [Online]. Available: https://sid.ir/paper/186105/en

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