Structural Design and Economic Evaluation of Roller Compacted Concrete Pavement with Recycled Aggregates

World Multidisciplinary Civil Engineering-Architecture-Urban Planning Symposium - WMCAUS

土木建筑工程

Abut, Yavuz^1 ; Taner Yildirim, Salih^2

Kocaeli Metropolitan Municipality, Department of Transportation Kocaeli, Turkey^1

Department of Civil Engineering, Kocaeli University, Kocaeli, Turkey^2

关键词: Ecological balance;    Economic benefits;    Economic evaluations;    Reclaimed asphalt pavements;    Recycled aggregates;    Roller compacted concrete pavements;    Roller-compacted concrete;    Splitting tensile strength;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/245/2/022064/pdf
DOI  :  10.1088/1757-899X/245/2/022064

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

Using recycled aggregates in the concrete offers advantages in many areas such as waste management, energy save and natural resources, conservation of ecological balance, low CO2 emissions, and users are encouraged in this regard to use these materials. In this study, the profit / loss account arising in the structural design phase was investigated when Reclaimed Asphalt Pavement (RAP), which is limited to use in Roller Compacted Concrete (RCC) pavements, was used as coarse aggregate. RAP materials were used as coarse aggregates by the levels of 0%, 15% and 20% and mechanical properties such as compressive strength, flexural strength, splitting tensile strength and modulus of elasticity were investigated. In the last stage, the mechanical properties obtained from these experimental studies were entered into KENSLABS software as input, and the slab layer thicknesses were determined according to three different subgrade conditions and a certain fatigue criterion. According to the results, it has been determined that the use of RAP at a level of 20% is a serious reducing effect on mechanical properties and and the use of RAP at a level of 15% does not bring a great economic benefit but it is reasonable to use it as coarse aggregate in RCC mixes in consideration of environmental effects.