Polyfunctional Modifiers for Bitumen and Bituminous Materials with High Performance

Polyfunctional Modifiers for Bitumen and Bituminous Materials with High Performance

Asphalt concrete (AC) coatings include two main components: bitumen and aggregates (crushed stone). Bitumen performs the function of a substance that binds particles of mineral material to form an asphalt concrete coating. Being nonpolar, bitumen has high waterproofing properties. It is known that high-resinous and low-paraffinic petroleum is the most suitable for the production of road and construction bitumen. However, due to the limited supply of this type of petroleum almost any oil residues are used. As a result, the quality of bitumen is very unsure at the moment and that leads to poor quality of bituminous materials resulting in poor quality asphalt concrete pavements.

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Evaluation of Time Loading Influence on Asphalt Pavement Rutting

Evaluation of Time Loading Influence on Asphalt Pavement Rutting

Pavement preservation is a major consideration of owners and managers of streets, highways, parking lots and all types of pavements.

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Low cement/fly ash blends for modification of Crushed Rock Base material

Low cement/fly ash blends for modification of Crushed Rock Base material

Crushed Rock Base (CRB) material sometimes needs to be modified typically due to the moisture susceptibility.

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Effect of short-term ageing temperature on bitumen properties

Effect of short-term ageing temperature on bitumen properties

The work presented in this paper shows preliminary results of a broad study carried out under the RILEM TC 252 CMB. It focuses specifically on the influence of short-term ageing temperatures, as used for WMA, on long-term ageing properties of bitumen.

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