Evaluation of asphalt binder blended with coconut coir dust and residual coconut fibers for structural applications

Abstract

This is an investigation into asphalt binder mixed with different amounts of an organic waste containing coconut coir dust and residual short coconut fibers abundant in the Caribbean and tropical countries. The concentrations used were 0.0, 1.0, 2.5 and 5.0wt%. Coconut coir is a type of organic waste produced in large quantities in Caribbean region of Colombia. It is composed of grinded mesocarp, which is the fibrous husk of the coconut fruit, and is currently used in agriculture, ornaments and crafts. This waste is a very stable and strong material suitable for use in structural applications such as the reinforcement of composite materials. In this investigation, materials characterization was conducted using Fourier transform infrared spectroscopy and scanning electron microscopy to analyze the microstructure of samples. Particle size distribution tests were also included to analyze the short coconut fibers. Penetration, softening point, penetration index, viscosity, flash point, fire point and ductility performance tests were also carried out on the asphalt mixes. Overall, these tests revealed that asphalt formulations can be used in selected construction and building material applications.

Evaluation of Using Natural Fillers to Improve Moisture Damage Resistance and the Use of Pull-Off Tensile Test in Determining Moisture Damage Resistance in Asphalt Mixture

“…It was found that adding more peat powder resulted in higher stiffness [17]. In addition, a study of coconut coir dust [18] found that the content of coconut coir dust should be optimum to obtain the mechanical properties. If the content is exceeded, the properties will change, resulting in weakening asphalt mixtures.…”

Viabilidade do uso da fibra de coco como insumo em materiais de construção – Uma pesquisa documental / Feasibility of using coconut fiber as an input in building materials – A documental research

“…Analisando de uma perspectiva mais social, Loaiza et al (2019) afirma que além de uma boa alternativa para reduzir a geração de lixo, a utilização de FC na construção civil pode se tornar uma fonte de renda para comunidades locais, tendo em vista que além de aumentar a demanda de produção do coco para produtores rurais, é necessário a implementação de mão-de-obra para realizar o devido tratamento para extração das fibras do fruto.…”

“…O setor da construção civil ainda é considerado como um dos mais poluentes e prejudiciais para o ecossistema no mundo. Esse título se deve ao fato de que além de exigir um consumo considerável de matéria-prima, a geração de resíduos de materiais de construção é constante e em larga escala (LOAIZA et al, 2019).…”

“…, desenvolvido porLoaiza et al (2019), objetiva avaliar as propriedades de ligantes asfálticos reforçados com fibra de coco. Na avaliação realizada, foi constatado que as propriedades de durabilidade do asfalto reforçado com FC são aplicação de placas isolantes reforçadas com fibra de coco em telhados verdes.…”

Ecotoxicity and Biodegradation of Sustainable Environment-Friendly Bone-Glue-Based Adhesive Suitable for Insulation Materials

“…Such organic materials can be divided into two types. The first type is vegetable sources (sugars, fruit liquids) and the second type is cattle or poultry (casseins, collagens, keratins, eggs) [ 9 , 10 ]. All these additives are organic and not toxic for the environment, contrary to the commercial synthetic adhesives based on formaldehyde, isocyanate or epoxy resins [ 11 ].…”