Asphaltic Concrete Wearing Course

Then relay the mixed material and compact.

Asphaltic concrete wearing course. As you may or may not know an asphalt pavement section or structure is made up of multiple and different asphalt layers lifts or courses. Is a prime coat necessary. Bituminous concrete hot plant mix asphalt concrete blacktop or superpave. By jason brazer p e.

Para asphalt concrete wearing course 5 cm. In flexible pavements the upper layer consists of asphalt concrete that is a construction aggregate with a bituminous binder. Asphalt concrete soils this certification program through its three subfields of asphalt concrete and soils is designed for field and laboratory technicians engaged in the testing and inspection of construction materials. The weight increase using asphalt is high with approximately 250 kg per m2.

Resurfacing is the placing of one or more courses of hot mix asphalt over an existing hard surface pavement. Asphalt leveling course is defined as a layer of asphaltic concrete pavement of varying thickness spread on an existing pavement to compensate for irregularities prior to placing the surface or wearing course. Cutback asphalt is a liquid asphalt. Asphalt has a layer thickness of about 10 cm.

As the asphalt binder wears way from the surface with traffic the color of the aggregate is exposed. There are various different types of flexible pavement wearing course suitable for different situations. Various iron compounds can impart a red green yellow or orange tint to a pavement while other colors can be achieved using different metal additives. Each course shall be constructed to the depth section or elevation required by the drawings and shall be rolled finished and approved.

Apply about 0 20 gal sy 2 of straight emulsion undiluted and blade mix it with the scarified material. Density of loose asphalt wearing course is 2 20ton cm 2 450ton cm cold mix asphalt is a mixture of aggregate and asphalt. Sma stone matrix asphalt. Complete placement of the base course material then scarify up about 3 4 inch.

Use an additive in the asphalt binder. As a final wearing course for structural repairs or resurfacings. That has a big impact on the weight. The wearing course is typically placed on the binder course which is then laid on the base course which is normally placed on the subbase which rests on the subgrade.

The layer thickness of a wearing course including the anti slip aggregate is only 7 10 mm.