Summary of Rubber Modified Asphalt Product Specifications around ...

Section Limit defines the chainage where the hot mix asphalt type changes.
Sampling Area defines the section length specifically set aside for sampling both during and after
construction.
Monitoring Portion defines the section length to be used for noise measurement and assessing the
performance of the section through visual and other non-destructive methods.
All sections shall be constructed with the same grade asphalt cement used in the remainder of the
Contract, outside of the test sections. The sequence of placement of the test sections may be changed,
with the approval of the Contract Administrator, to suit field conditions.
The Contractor shall install 300 mm x 300 mm aluminium plate information signs indicating limits
between sections and also limits between monitoring and sampling areas. The Ministry (Provincial Sign
Shop) will supply the signs and the contractor shall pick them up from the address provided below and
haul them to the construction site. The Contractor shall supply 25 mm x 25 mm x 1800 mm steel posts,
and the required bolts. The Contractor shall attach the signs to the steel posts and erect the posts within
the right of way at each limit to be confirmed by the Contract Administrator. The Contractor is to advise
the Ministry at least five (5) business days in advance of when the signs are required for pick up. The
information signs are available at the following address:
MTO Provincial Sign Shop
Location: 1927 Kipling Avenue, Rexdale, Ontario
Time: 6:30 a.m. – 2:00 p.m. Monday to Friday (except Holidays)
Contact and Phone number: Tracey Johnston 416-314-1898 ext. 303
Quality Assurance
Lot Size and Sampling
Each of the binder course and the surface course of each test section shall be considered as a single lot
with three sublots (i.e., sampling areas plus monitoring section). Three random sets of samples of the
mix and three sets of compaction cores shall be taken within each sublot. No compaction cores shall be
taken from the Monitoring Portions. Each set of samples shall be comprised of three samples, one for
QC, one for QA and one for referee testing, as specified elsewhere in the Contract. No compaction
cores shall be taken for OGFC, RAC-O, and HL4 OBC.
The contractor should expect that extra samples from the test sections will be required for research
purposes at no extra cost to the Owner.
Acceptance of OGFC
OGFC shall meet the requirements for surface tolerance and visual acceptance as specified elsewhere in
the Contract. Acceptance of the material shall be based on the average for the lot meeting the
requirements given in Table C and for air voids, no less than 2 % below the mix design requirements.
No payment adjustment will apply to the mix that meets the criteria. Any sublot that does not meet the
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