01732245

Component

http://www.trb.org/Publications/Blurbs/179567.aspx

The deposition of demolished concrete from old building structures in landfills is currently an unacceptable strategy because of the increasing cost of disposal, the declining availability of disposal space, and other environmental concerns. Recycling of old building structures as construction materials is a viable alternative. The objectives of this research study are to investigate the feasibility of using recycled building materials in asphalt pavement mixes in the low-volume agriculture roads. Two types of recycled building materials, recycled bricks (RB) and recycled concrete (RC), were used as coarse aggregates in hot-mix asphalt (HMA). A total of nine hot asphalt mixtures were formed by replacing a certain percentage of the coarse virgin aggregates by crushed bricks and concrete. The prepared mixtures were tested in Marshall, immersion, indirect tensile, and creep tests to investigate the effect of recycled materials on mixture properties and identify the optimum percentage of recycled materials. The findings in this project support the hypothesis that both RC and RB can be used effectively as a coarse aggregate in HMA in the low-volume agriculture roads when appropriate quality-control techniques are used. Based on the information obtained in this study, the recycled building materials could be used as partial replacement of coarse virgin aggregates in HMA without significant reduction in its performance.

01730920

English

pp 137-147

2019-9

Transportation Research Circular

12th International Conference on Low-Volume Roads

Digital/other

Figures; References; Tables

Asphalt pavements; Brick; Farm roads; Feasibility analysis; Hot mix asphalt; Low volume roads; Quality control

Recycled concrete

Egypt

Highways; Materials; Pavements

TRIS, TRB, ATRI

Feb 25 2020 3:59PM