Application of Various Contents of Nanocloisite 30B on Mechanical Properties of Concrete Asphalt

Nanocloisite, because of it's unique features has had many applications at most of the sciences and has caused evolution in materials' features in recent years. This admixture has used in pavement engineering for improving physical and mechanical characteristics of asphalt mixtures. Nanocloisite is a kind of Nanoclay that plays an important role at improving asphalt mixture operation. In consider to aggregation type, in mixing asphalt, nanocloisite is replaced by filler, and must be added to bitumen and mixed with it and then aggregates be added to them. Stability and flow of Marshall are functions of filler type, quantity and characteristics. In this research, by adding 1 to 5 of nanocloisite contents in asphalt mixture based on Topeka aggregation, observed that this additive has direct ratio to increasing of Marshall Stability, VTM and VMA and has reverse ratio to decreasing of Flow, VFA and Unit Weight. Results showed that nanocloisite has a high filling role, improves cohesion between aggregates and bitumen, increases bitumen volume and finally causes increasing bitumen membrane thickness around the aggregates.

Keywords:

Nanocloisite , Asphalt Mixture , Topeka , Marshall Test , Mechanical