Abstract
This article presents the results of a research project which analyzes the viability of incorporating waste material from decorative quartz solid surfacing in the manufacture of hot bituminous mixes. For this purpose, various bituminous mixes were manufactured with waste aggregate in different percentage. A set of tests were carried out that permitted the characterization of the mechanical behavior of these mixes. The results of these tests were similar to the results obtained when conventional mixes made from virgin quarry aggregate were tested. The results for moisture sensitivity as well as for wheel track rutting on mixes showed the optimal performance of this waste material even under very demanding traffic conditions. Laboratory studies showed that the use of this waste material in the manufacture of bituminous mixes is technically viable and can provide high-quality recycled aggregates at a very low cost, which can be used in the pavement of road.
Highlights
The concept of sustainability has become one of the major priorities in society today
The need to adapt construction methods and processes so that they are in harmony with policies of sustainable development has led the road construction sector to contemplate the use of waste materials as a substitute for conventional virgin aggregate (4-9)
Como en el resto de ensayos presentados hasta el momento, los resultados obtenidos en las velocidades de deformación en el ensayo en pista (Tabla 6) cumplieron las especificaciones del PG-3: at the beginning of the project, there were certain doubts regarding the degree of adhesion between the binder and the Silestone® aggregate because of the resin covering the silica particles, the results of our study showed that the Silestone resin had no adverse effects on the adhesion capacity of the bitumen, but even enhanced it
Summary
This article presents the results of a research project which analyzes the viability of incorporating waste material from decorative quartz solid surfacing in the manufacture of hot bituminous mixes. For this purpose, various bituminous mixes were manufactured with waste aggregate in different percentage. A set of tests were carried out that permitted the characterization of the mechanical behavior of these mixes. The results of these tests were similar to the results obtained when conventional mixes made from virgin quarry aggregate were tested.
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