Hot Rolled Asphalt and Asphalt Concrete (Macadam) - Ministry of ...

Specification 12 Hot Rolled Asphalt and Macadam for Airfields 9 Summary of Tests
9 Summary of Tests
9.1 TEST RESULTS
The Contractor shall be responsible for having all
testing carried out in accordance with the
requirements of this Section and provide the Project
Manager with a written copy of all results at the first
reasonable opportunity but not later than 2 working
days after completion of each test. Testing shall be
started on specimens within 2 working days of
sampling and shall be carried out in an expeditious
manner.
9.2 TESTS FOR INITIAL APPROVAL OF
MATERIALS
9.2.1 Before mixing starts the Contractor (or his
materials supplier(s) on his behalf) shall provide
current CE mark certificates for all aggregates
showing conformity with all requirements of
Section 3.
9.2.2 In addition to 9.2.1, the Contractor (or his
materials supplier(s) on his behalf) shall have
carried out the aggregate tests in Table 9.1 for
comparison with the relevant specification clauses.
TABLE 9.1 ADDITIONAL AGGREGATE TESTS
FOR INITIAL APPROVAL
Component
material
Coarse
Aggregate
Fine
Aggregate
Clause
Test
No. Title Reference
3.2
3.3
Magnesium
Sulfate Val.
Affinity between
ag. &
bitumen
Magnesium
Sulfate Val.
Affinity between
ag. &
bitumen *
Appendix A
BS EN
12697-11
Part B
Appendix A
BS EN
12697-11
Part B
* Test on particles of rock from the same source
when crushed rock fines are used
9.2.3 In addition, the Contractor shall submit the
appropriate certificates for binder and other
constituents, including tack or bond coat, and also
for tack or bond coat spray bar equipment.
9.3 TEST FOR THE PROPORTIONING
AND DESIGN OF MIXTURES
Before mixing starts the Contractor (or his materials
supplier(s) on his behalf) shall provide current CE
mark certificates for all asphalt mixtures showing
conformity with all requirements of Section 4 for Hot
Rolled Asphalt, Section 5 for Asphalt Concrete
(Macadam) or Section 6 for Pervious Macadam and
the relevant specification clauses in Table 9.2.
9.4 ROUTINE TESTS ON BULK
SUPPLIES THROUGHOUT PLANT
MIXING
9.4.1 The Quality Assurance procedures for the
supply of component material and asphalt mixtures
shall include carrying out tests in order to:
• check on the consistency of bulk supplies;
• compare with the properties and gradings of the
conformity declaration; and
• check on the capability of the dryers to function
efficiently with aggregates of variable moisture
content.
The tests shall include those in Table 9.3.
9.4.2 If the result of any test indicates that the
bulk deliveries are not of a grading or quality
consistent with the declaration of conformity, the
Contractor shall, at his own expense, carry out
further tests to establish the location and extent to
which the materials already stockpiled fail to meet
the specified requirements and, if stored on site,
shall remove all material condemned by the Project
Manager for this reason from the aerodrome.
9.4.3 Where the material is mixed off site, any
condemned material shall be carefully removed
from the stockpiles to be used for the work.
34 July 2010