Excerpt from Typical Specifications for Bituminous Road Materials
Upon receipt Of all Of the information that Could be secured the comments of the manufacturers were tabulated, together with the test results which they furnished and the analyses, Of the samples examined in the laboratory Of the office. These data were carefully studied and when justified, modifications were made in the tentative specifications which in their revised form are presented in this bulletin. The forms Of Specification adopted are in general those recommended by the first conference Of State 'highway Testing Engineers and Chemists?