AASHTO Designation: T 168-03 (2007) pdf free download

Standard  Method  of Test for

Sampling Bituminous Paving  Mixtures

AASHTO  Designation: T 168-03 (2007)

ASTM  Designation: D 979-01  (2006)e1

AASHTO Designation: T 168-03 (2007) pdf free download

AASHTO T 168-03 (2007) is identical to ASTM D 979-01 (2006l  1    except for the following provisions:

1.All references to the ASTM standards listed in the following table, shall be replaced with the                     )

corresponding AASHTO standard:

Referenced Standard

  ASTM                             AASHTO                      

   C702                                   T248                          

2.Insert an additional section between Sections 4.1.1 and 4.1.2 containing the following:

Care shall be taken in sampling to avoid segregation of coarse aggregate and asphalt mortar.

Care shall be taken also to prevent contamination by dust or other foreign matter.

3.Insert new Sections, and after Section as follows: If the mixture is in a windrow (cold mix), random samples of the windrow at intervals ofnot more than 150 m (500 ft) shall be secured and tested separately. Samples of the

windrow shall be secured by flattening it at one point into a layer of approximately 0.3 m

(1 ft) thick and coring this layer at three or more random points to obtain the required sample

size as shown in Table 1.

Click below to download AASHTO Designation: T 168-03 (2007) pdf free

Click here to download  AASHTO Designation: T 167-05 pdf free download

Leave a Comment