Characteristics of Asphalt Modifiedwith Industrial Waste Sludge
Containing Calcium Carbonate
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In today's era, bituminous mixes are often used in pavement construction globally. Design of these pavements is a multi-step process of choosing binders and aggregate materials and quantifying them to provide a suitable mix taking into the effect of external factors such as traffic loading and climatic conditions. As the traffic intensity is exponentially increasing and the variation in temperature is rising, the need to think of an alternative solution for improvement of pavement characteristics has cropped up. These problems have a damaging effect on the preferred properties of bituminous pa...
In today's era, bituminous mixes are often used in pavement construction globally. Design of these pavements is a multi-step process of choosing binders and aggregate materials and quantifying them to provide a suitable mix taking into the effect of external factors such as traffic loading and climatic conditions. As the traffic intensity is exponentially increasing and the variation in temperature is rising, the need to think of an alternative solution for improvement of pavement characteristics has cropped up. These problems have a damaging effect on the preferred properties of bituminous pavement, such as flexibility, resistance to fatigue, resistance to rutting and raveling. It is caused by gradual build-up of irrecoverable strains under repeated loading, which develop into a measurable rut (permanent depression along the wheel path). These strains are due to the visco-elastic response of bituminous materials to dynamic loading. Unmodified bitumen lacks the balance between the visco-elastic response and the increase of the traffic volume. Therefore, binders were modified to face the load and weather challenges.
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