Stone mastic asphalt (SMA), also called stone-matrix asphalt, was developed in Germany in the 1960s with the first SMA pavements being placed in 1968 near Kiel. [1] It provides a deformation-resistant, durable surfacing material, suitable for heavily trafficked roads.

Stone mastic asphalt (SMA) is a stone-on-stone like skeletal structure of gap graded aggregate, bonded together by mastic, which actually is higher binder content, filler and fiber to reduce the binder drain.

Stone Mastic Asphalt (SMA) is a gap-graded skeleton dense asphalt mixture with voids filled with a considerable amount of asphalt binder, stabilizer and finer aggregate, which results in a low air void content (3%–8%) (Vázquez et al., 2019).

Stone matrix asphalt (SMA) is a gap-graded HMA (Figure 1) that is designed to maximize deformation (rutting) resistance and durability by using a structural basis of stone-on-stone contact (Figures 2-6). Because the aggregates are all in contact, rut resistance relies on aggregate properties rather than asphalt binder properties.

SMA — otherwise known as Split Mastic Asphalt/Stone Mastic Asphalt/Stone Matrix Asphalt — was developed in Germany in the late 1960s. The original impetus was to develop a mix with better resistance to studded tires. Simply stated, SMA is a gapgraded mix designed to - direct stone on stone achieve contact.

Stone Mastic Asphalt (SMA) has shown its outstanding performance on a variety of road surfaces throughout the world for more than 40 years − making SMA one of the most popular surfaces courses used. SMA is based on the concept of a self-supporting stone skeleton, with a thick mastic and high binder content.

Stone Mastic Asphalt (SMA) is one of the acceptable materials for pavement design to be used in highly travelled roads owing to the exceptional performance of the pavement structure [2, 7, 8]. This makes it one of the materials that can be used in the construction of roads.

Asphalt surface courses made of Stone Mastic Asphalt are considered to be particularly durable, resistant to deformation and provide good grip. They have proven themsel-ves excellently in traffic areas with the highest loads or stresses created by traffic and climate. Stone Mastic Asphalt consists of a gap-graded aggregate mix polymer-modified ...

Stone mastic asphalt (SMA) can be used in the Surface and Binder layers of a pavement. The product is a blend of a high proportion of single size coarse aggregate, plus fine aggregate, filler and binder.

Stone mastic asphalt (SMA) was originally developed in Germany in the 1960s as a durable road surfacing to resist wear from studded tyres. SMA is designed to have a large percentage of coarse aggregate with stone-on-stone contact, with the remaining voids partially filled with mastic comprising fine aggregate, filler, fibre and bituminous binder.