Incorporação de pó de agregados reciclados de concreto como fíler em misturas asfálticas

Materia

article

Juan Gabriel Bastidas-Martínez¹  Juan Carlos Ruge Cardenas¹  Liosber Medina García²  Robinson Andrés Giraldo Zuluaga² 

[1] Universidade Católica de Colômbia;Universidade Federal de Goiás

关键词: Filler;    RFPA;    Marshall test;    tensile strength;   

DOI  :  10.1590/S1517-707620210003.13049

学科分类：工程和技术（综合）

来源: Universidade Federal do Rio de Janeiro * Coordenacao dos Programas de Pos-Graduacao de Engenharia

【 摘 要 】

The generation and management of industrial solid waste is a global environmental problem. Several studies have focused on the use of civil construction waste in the paving field. The main goal of this paper is to evaluate the use of recycled fine aggregate powder (RFAP) in a Hot Mix Asphalt (HMA). For this purpose three types of asphalt mixtures were produced: the reference mixture with conventional materials and two study mixes with replacement of 3% and 6% of natural filer by RFAP (total composition of the mixture mass). The monotonic load strength of the mixtures (Marshall Test and Indirect Traction-RT) and the resistance to Cantabro wear was evaluated. When replacing 3% of the total composition of the mixture mass with RFAP powder a satisfactory mechanical behavior was obtained under monotonic loads, although there was an increase in mass loss in the Cantabro test. The results show that the use of RFAP in the proposed way is feasible from a technical and environmental point of view, as it allows a safe final disposal of waste.

【 授权许可】

CC BY