Use of Adhesion Promoters in Asphalt Mixtures

Abstract

The purpose of asphalt binder as a significant binder in road constructions is to permanently bind aggregates of different compositions and grain sizes. The asphalt binder itself does not have suitable adhesiveness, so after a period of time, bare grains can appear. This results in a gradual separation of the grains from an asphalt layer and the presence of potholes in a pavement. Adhesion promoters or adhesive agents are important and proven promoters in practice. They are substances mainly based on the fatty acids of polyamides which should increase the reliability of the asphalt’s binder adhesion to the aggregates, thus increasing the lifetime period of the asphalt mixture as well as its resistance to mechanical strain. The amount of a promoter or agent added to the asphalt mixture is negligible and constitutes about 0.3% of the asphalt’s binder weight. Nevertheless, even this quantity significantly increases the adhesive qualities of an asphalt binder. The article was created in cooperatation with the Slovak University of Technology, in Bratislava, Slovakia, and focuses on proving the new AD2 adhesive additive and comparing it with the Addibit and Wetfix BE promoters used on aggregates from the Skuteč - Litická and Bystřec quarries.

Durability of bitumen binder reinforced with polymer additives: Towards upgrading Nigerian local bitumen

“…Amine-based chemicals, anti-stripping agents, are capable of enhancing water resistance especially, for limestone and granite/bitumen mix. In another study, [ 109 ] explored a polyamide promoter that is based on fatty acids. It was observed that the adhesive additives positively increase the adhesion of the asphalt binder, even after being supplied to the asphalt mixture in quite a small quantity (0.3 % of the asphalt's binder weight).…”

Assessment of Traffic Noise Pollution Due to Urban Residential Road Transport

“…Figure 1. Factors affecting the level of transport noise [6] Factors affecting the level of transport noise Characteristics of the traffic flow [8][9][10][11][12][13] Characteristics of the environment [15,16,19] Traffic flow composition…”

“…In Brazil [11], USA [12], Serbia [13], Italy [14], Canada [15], Romania [16], India [17] and other countries [18] tens of thousands of kilometers of acoustic screens are installed. Slovakia, France and Germany use a noise-absorbing road surface to reduce the noise of car tires [19]. Embankment and green plantations are successfully used to reduce the sound level in the way of its dissemination [12].…”

Study of road bitumens operational properties modified with phenol-cresol-formaldehyde resin

“…Therefore, it is necessary to ensure both passive and active adhesion of the bituminous binder to mineral materials, which makes it possible to make a class of materials -surfaceactive substances. By active adhesion we understand the ability of bitumen to adhere to stone material due to the formation and maintenance of a strong chemical bond even in the presence of water, in contrast to passive adhesion, where a reliable bond is ensured only with the surface of dry stone material [6,12,13].…”