Enhancing workability and sustainability of asphalt mixtures: Investigating the performance of beeswax as a novel additive for warm mix asphalt

•Beeswax used as viscosity reducer in asphalt binder.•Enhanced fatigue strength with beeswax additive.•Beeswax enhances binder integrity and durability.•Beeswax-modified asphalt suitable for low-traffic roads.•Beeswax improves sustainability of asphalt mixtures. Asphalt, a crucial road component, de...

Full description

Saved in:

Bibliographic Details
Published in:	Construction & building materials Vol. 405; p. 133306
Main Authors:	de Sousa, Talita Miranda, de Medeiros Melo Neto, Osires, Elísio de Figueiredo Lopes Lucena, Adriano, Nóbrega, Edilza Rakel
Format:	Journal Article
Language:	English
Published:	Elsevier Ltd 17-11-2023
Subjects:	Alternative material ANOVA Eco-friendly pavement materials Performance assessment Sustainable asphalt additives Eco-friendly pavement materials Alternative material Sustainable asphalt additives ANOVA Performance assessment
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	•Beeswax used as viscosity reducer in asphalt binder.•Enhanced fatigue strength with beeswax additive.•Beeswax enhances binder integrity and durability.•Beeswax-modified asphalt suitable for low-traffic roads.•Beeswax improves sustainability of asphalt mixtures. Asphalt, a crucial road component, demands ongoing research for better performance and environmental impact reduction. This study explores how adding beeswax as an asphalt binder modifier affects mixture properties. Binders were enhanced with three beeswax concentrations (1%, 3%, and 5%), followed by thorough testing covering temperature, rheological traits, and performance factors. Statistical analyses were used to interpret results. Findings reveal lower mixing and compaction temperatures due to beeswax. Specifically, 1%, 3%, and 5% beeswax lowered temperatures by 2 °C and 1 °C, 4 °C and 4 °C, and 9 °C and 12 °C during mixing and compaction. Mixtures with 3% and 5% beeswax improved resilient modulus but showed reduced resistance to permanent deformation and moisture damage. These mixtures could suit low-traffic roads and regions with little rainfall, like northeastern Brazil and North African countries. Adding beeswax aligns with eco-friendly construction, offering benefits like lower temps, energy savings, and fewer emissions. The use of beeswax introduces an intriguing concept, merging culinary and construction worlds, highlighting its potential use from various perspectives.
ISSN:	0950-0618 1879-0526
DOI:	10.1016/j.conbuildmat.2023.133306