Stone Mastic Asphalt (SMA) is a high quality asphalt mortar of bitumen, sand, and filler with CFF cellulose fibre pellets acting as binder carriers to permanently bond the mineral substances. Introduction. Stone Mastic Asphalt (SMA) is a gap-graded, highly textured and durable surface mix with a much higher percentage of stone and more asphalt cement than conventional HMA Advantages of SMA over conventional HMA are: •excellent durability in terms of rutting resistance and … At the end of its useful life, mastic asphalt is 100% recyclable or can be used in mastic asphalt screeds etc., making it … This Specification, " Stone Mastic Asphalt for Airfields ", has been devised for use of the Crown and of its Contractors in the execution of contracts ASPHALT (HMA) AND STONE MASTIC ASPHALT (SMA) GRADING BANDS. 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.It provides a deformation-resistant, durable surfacing material, suitable for heavily trafficked roads. SMA coarse aggregate top …
Guidance Notes RD/GN/030 was issued in December 2001 introducing the use of stone mastic asphalt (SMA) as a surface course for heavily trafficked roads. Mastic Asphalt. SMA is used in the construction of new roads and overlaying existing roads and offers superior durability and resistance to deformation. The work under this specification consists of the supply and application of stone mastic asphalt (hereafter referred to as asphalt) as a pavement wearing course. Mastic Asphalt is made with modified asphalt binders and aggregate in a pre-mixed, single package.
(Coarse aggregate (plus 2 mm) about 70 to 80 percent, fine aggregate (2 mm to 90 pm) about 12 to 17 percent and filler (minus 90 pm) about 8 to 13 percent for SMA. Stone mastic asphalt : design & application guide.. [Australian Asphalt Pavement Association Limited. Stone mastic asphalt is a thin yet resistant asphalt surfacing mix with very good rut resistance properties and superior durability. STONE MASTIC ASPHALT GENERAL 502.01 SCOPE 1. 9:35. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Simon Cooper HNC CSRT CSSW 913 views. Mastic asphalt is yours bridging - Duration: 9:35. It can be used as a base course mix for all sophisticated building needs and is primarily used for heavily trafficked roads, but it can be used for all types of pavements. 1. One of stone mastic asphalt's special advantages is that within limits it can be paved in different thicknesses in order to even out a surface without worrying about possible different postcom-paction. Figure 1: Stone Mastic Asphalt Structure Figure 2: Stone Mastic Asphalt Texture INTERNATIONAL INFLUENCES The initial Australian trials in the early 1990’s were based on direct application of the German specification that was current at the time (Rebbechi, op.cit.). This page contains Stone Mastic Asphalt Seminar and PPT with pdf report. Expired - Fee Related Application number DE1995114809 Other languages German (de) The application and limitations of the specification requirements in this DE Specification are outlined in Section 1. Approaching 2010, more frequent occurrence of rutting
AGE Open Graded Porous Asphalt is … 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. Since then SMA has been extensively used as the surfacing layer on heavily trafficked bituminous carriageways in Hong Kong. Mastic Asphalt is so durable over long periods that it is considered by construction professionals to have little or minimal impact on the environment. Get this from a library! Stone Mastic Asphalt (SMA) is a gap-graded mix laid between 30mm and 40mm thickness. 33 04 N Road Construction Bitumen pavement - … It is intended for application to most uses of asphalt although some specialist uses, such as heavy-duty, off-road applications (airfields, container terminals), major freeways, special mix types, and non-road applications may require further specific requirements.