§ 206S.3. Materials

A.

Asphalt Material:

The asphalt cement for the asphalt stabilized mixture shall be the grade shown on the Drawings or designated by the Engineer or designated representative and shall meet the requirements of Standard Specification Item No. 301S, "Asphalts, Oils and Emulsions". The Contractor shall notify the Engineer or designated representative of the source of the asphalt material prior to the design of the asphalt stabilized mixture. This source shall not be changed during the course of the project without the authorization of the Engineer or designated representative. If the source of asphalt material is changed, the moisture resistance of the new material combination will be evaluated to verify that the requirements of section 206S.4 are met.

Asphalt material for tack coat, if directed, shall conform to Standard Specification Item No. 307S, "Tack Coat".

B.

Aggregate:

The aggregate shall meet all requirements of and conform to Type A of Specification Item 340S, "Hot Mix Asphalt Concrete Pavement". When shown on the drawings, the gravel portion of the aggregate shall be so crushed as to have a minimum of 60 percent of the particles retained on the # 4 (4.75 mm) sieve with two or more mechanically induced crushed faces, as determined by TxDoT Test Method Tex-460-A (Part I).