406— Asphalt Surface Treatment – Single Treatment

400-34 Section 406 — Asphalt Surface Treatment – Single Treatment

406.1 Description 1 Construct an asphalt surface treatment – single treatment on a prepared foundation. 406.2 Material 406.2.1 Asphalt Material 406.2.1.1 Modified Emulsified Asphalt 1 Use a cationic emulsified asphalt of the grade designated as CRS -2P in Subsection 401.2.1.3. Do not perform any post blending or acid modification of the CRS -2P. 406.2.2 Aggregate 1 Use aggregates consisting of clean, washed, dry, durable particles of crushed stone, crushed gravel; free from soft, thin, elongated or laminated pieces, disintegrated particles, vegetation, or other deleterious substances; and from a source listed on Qualified Product s List 1 or Qualified Product s List 2, as applicable . Do not use marine limestone. 2 Ensure that aggregates are within the required gradation limits provided in Appendi ces A -2 and A-3. 3 Ensure that c rushed stone or gravel has an abrasion loss of not more than 60.0% when subjected to the Los Angeles Abrasion Test ( AASHTO T 96 ). 4 When specified, use lightweight aggregates in surface treatment provided that the aggregate comes from a source listed on Qualified Product s List 2 and complies with AASHTO M 195, Lightweight Aggregates for Structural Concrete (with the exception of any references to concrete samples or concrete strength). 5 Use lightweight aggregate that also meet s the physical properties in the following table.