Surface Cement Concrete with Reclaimed Asphalt

Area of Science:

• Civil Engineering
• Materials Science
• Sustainable Construction

Background:

• Growing demand for construction materials strains natural resources.
• Road and airfield construction heavily relies on conventional aggregates.
• Sustainable development necessitates exploring recycled materials in concrete.

Purpose of the Study:

• To evaluate reclaimed asphalt pavement (RAP) as a substitute for natural aggregates in cement concrete.
• To assess the economic and environmental advantages of using RAP.
• To determine the impact of RAP incorporation on concrete's mechanical, physical, and strength properties.

Main Methods:

• Characterization of reclaimed asphalt pavement material.
• Preparation of cement concrete mixtures with varying proportions of RAP.
• Testing of mechanical, physical, and strength parameters of the developed concrete mixes.

Main Results:

• Incorporating RAP as a partial replacement for natural aggregates is feasible.
• Economic benefits include reduced aggregate consumption, transport costs, and greenhouse gas emissions.
• A decrease in certain mechanical and strength parameters of cement concrete was observed with RAP addition.

Conclusions:

• Reclaimed asphalt pavement is a viable recycled material for sustainable construction.
• RAP can be utilized in cement concrete for applications with lower traffic loads.
• The use of RAP aligns with sustainable development policies in the construction industry.