Coir fiberas a sustainable material in pavement construction
Coir fiberas a sustainable material in pavement construction
Authors
M., Anjaly
Authors
Date
2022
Datos de publicación:
Sustainability, Agri, Food and Environmental Research, Vol.10, N°X, [1-10], 2022
Keywords
Asfalto de matriz de piedra - Fibra de coco - Surcado
Collections
Abstract
El tráfico aumenta día a día debido al aumento de la propiedad de vehículos y al desarrollo de la infraestructura. Como el transporte por carretera moderno tiene alta velocidad, altadensidad de tráfico, carga pesada y tráfico canalizado, el hormigón bituminoso está sujeto a varios tipos de angustia, como formación de surcos, agrietamiento por fatiga y desmoronamiento. El agrietamiento por fatiga se produce porque las capas bituminosas son débiles en tensión. Por lo tanto, el refuerzo de las mezclas bituminosas es un enfoque para mejorar la resistencia a la tracción. Las fibras naturales se pueden utilizar como refuerzo como sustituto de las fibras sintéticas debido a su menor costo, reciclaje ecológico y baja gravedad específica. Entre las fibras naturales, se está prestando una atención creciente a la fibra de bonote debido a su fácil disponibilidad, buena resistencia al desgaste y propiedad más duradera. También los surcos a lo largode la trayectoria de las ruedas provocan el hidroplaneo del vehículo durante las temporadas de lluvia debido a la pérdida de resistencia al deslizamiento. Así como el agua acumulada sobre las depresiones longitudinales daña la unión entre el ligante y losagregados. Por lo tanto, existe la necesidad de una mezcla duradera que pueda aumentar la vida útil del pavimento y reducir así el costo del ciclo de vida. Este estudio trata sobre el uso de fibra de coco en la construcción de pavimentos para mejorar las características de rendimiento de la mezcla de asfalto que se está utilizando. La mezcla de asfalto de matriz de piedra es una mezcla duradera y resistente a los surcos que está reforzada con fibra de coco y probada para varias características de rendimiento. La fibra de coco es un material sostenible que se puede utilizar para mezclas resistentes a la formación de surcos.
Traffic is increasing day by day due to increased vehicle ownership and infrastructure development. As the modern highway transportation has high speed, high traffic density, heavy load and channelized traffic, bituminous concrete is subjected to various types of distress such as rutting, fatigue cracking and raveling. Fatigue cracking occurs because bituminous layers are weak in tension. Therefore reinforcement of the bituminous mixes is one approach to improve tensile strength. Natural fibers can be used for reinforcing as a substitute for synthetic fibers due to their lower cost, ecological recycling and low specific gravity. Among natural fibers growing attention is being paid to coir fiber due to its easy availability, good wearing resistance and more durable property. Also rutting along wheel path causes vehicle hydroplaning during rainy seasons due to loss of skid resistance. As well as water accumulated over the longitudinal depressions damages bond between binder and aggregates. Therefore there is a need for a durable mix which can increase the service life of pavement thus reduces life cycle cost. This study is about use of coir fiber in pavement construction to improvethe performance characteristics of the asphalt mixture being used. Stone matrix asphalt mixture is a rut resistant and durable mix which is reinforced with coir fiber and tested for various performance characteristics. Coir fiber is a sustainable material which can be used for rutting resistant mixture.
Traffic is increasing day by day due to increased vehicle ownership and infrastructure development. As the modern highway transportation has high speed, high traffic density, heavy load and channelized traffic, bituminous concrete is subjected to various types of distress such as rutting, fatigue cracking and raveling. Fatigue cracking occurs because bituminous layers are weak in tension. Therefore reinforcement of the bituminous mixes is one approach to improve tensile strength. Natural fibers can be used for reinforcing as a substitute for synthetic fibers due to their lower cost, ecological recycling and low specific gravity. Among natural fibers growing attention is being paid to coir fiber due to its easy availability, good wearing resistance and more durable property. Also rutting along wheel path causes vehicle hydroplaning during rainy seasons due to loss of skid resistance. As well as water accumulated over the longitudinal depressions damages bond between binder and aggregates. Therefore there is a need for a durable mix which can increase the service life of pavement thus reduces life cycle cost. This study is about use of coir fiber in pavement construction to improvethe performance characteristics of the asphalt mixture being used. Stone matrix asphalt mixture is a rut resistant and durable mix which is reinforced with coir fiber and tested for various performance characteristics. Coir fiber is a sustainable material which can be used for rutting resistant mixture.