Abstract

LEIVA-VILLACORTA, Fabricio  and  VARGAS-NORDCBECK, Adriana. Recommended best practices for using rap in asphalt pavements for Costa Rica. Infraestructura Vial [online]. 2017, vol.19, n.33, pp.35-44. ISSN 2215-3705.

Utilization of RAP in asphalt pavements has become an important strategy to help offset rising raw material prices and to improve the sustainability of our transportation infrastructure. Characteristics of the recycled materials, mix designs, performance and construction practices do not follow any known standard practice. The objective of the proposed document is to identify best practices for specification, design, production, testing, and placement of RAP mixes. The proposed document provides guidance for the effective use of reclaimed asphalt pavement (RAP) materials in pavements specifically for Costa Rica. The document includes recommendations on when milling should be considered as part of pavement rehabilitation, best practices for handling and stockpiling RAP, testing the RAP, designing mixes with RAP, production of mixes containing RAP, and quality control practices during production of mixtures containing RAP.

Keywords : RAP; asphalt mixture; performance; pavements; best practices.

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