Since the s, Stone Mastic Asphalt SMA pavement surfaces have been used successfully in Germany on heavily trafficked roads as a durable road surfacing to resist wear from studded tyres. Because of its excellent performance characteristics, road authorities in Germany as well as major European Countries quickly adopted SMA as a standard wearing course. During the last few years, SMA has become one of the most popular asphalt pavements. The deformation resistant capacity of SMA stems from a coarse stone skeleton providing more stone-on-stone contact than with conventional Dense Graded Asphalt DGA mixes. Improved binder durability is a result of higher bitumen content, a thicker bitumen film, and lower air voids content.
ON SMA For Road Construction
Stone Mastic Asphalt
Mastic asphalt is a building material that is used for paving, roofing and flooring. It is similar to traditional concrete asphalt in that it forms a very dense solid-surface material under average temperature conditions. When exposed to extremely high temperatures, mastic asphalt forms a thick, liquid substance that can be poured or spread over a surface. The primary difference between mastic asphalt and asphalt concrete lies in each material's level of permeability.
Stone Mastic Asphalt is characterised by its high stone content which forms a gap-graded skeleton-like stone structure. Sohne Germany Importance of Stone There are three major types of asphalt Mastic Asphalt in surfacings, characterized by a mixture of Construction bitumen and stone aggregate. Rosli Hainin1, Wasid What is the SMA The first aim of this Farooq Reshi1, Hamed to provide an update Niroumand systematic review of evaluation of stone m asphalt in constructi second aim is to dev knowledge readers a researchers for adva and disadvantages o mastic asphalt to hel future research in th.