Hot Rolled Asphalt and Asphalt Concrete (Macadam) - Ministry of ...
Hot Rolled Asphalt and Asphalt Concrete (Macadam) - Ministry of ...
Hot Rolled Asphalt and Asphalt Concrete (Macadam) - Ministry of ...
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Specification 12 <strong>Hot</strong> <strong>Rolled</strong> <strong>Asphalt</strong> <strong>and</strong> <strong>Macadam</strong> for Airfields 3 Constituent Materials<br />
TABLE 3.3 REQUIRED PROPERTIES FOR FINE AGGREGATES<br />
Property Test Method Aggregate type<br />
Resistance to freezing<br />
<strong>and</strong> thawing<br />
BS EN 1367-2/<br />
<strong>Hot</strong> <strong>Rolled</strong><br />
<strong>Asphalt</strong><br />
<strong>Asphalt</strong><br />
<strong>Concrete</strong><br />
(<strong>Macadam</strong>)<br />
Pervious<br />
<strong>Macadam</strong><br />
Each source ‡ MS18 MS18 –<br />
Appendix A ‡ Each fraction ‡ MS30 MS30 –<br />
Water absorption BS EN 1097-6 All WA242 WA242 WA242<br />
Affinity between<br />
aggregate <strong>and</strong> bitumen<br />
BS EN 12697-11<br />
Part B<br />
Parent rock if<br />
crushed rock<br />
fines<br />
Not greater than 6 particles from a 150<br />
particle test sample<br />
– No limit<br />
‡ BS EN 1367-2: 1998 is restricted to the 14/10 mm fraction but, for this purpose, the same techniques<br />
shall also be used for fractions <strong>of</strong> the fine aggregate. Advice on the use <strong>of</strong> the test with non-st<strong>and</strong>ard<br />
aggregate fractions is given in Appendix A.<br />
TABLE 3.4 ACCEPTABLE TYPES OF FILLER AGGREGATE<br />
Material Filler Aggregate Type<br />
Cement<br />
(BS EN 197-1)<br />
Crushed<br />
Limestone<br />
Crushed<br />
Rock<br />
Hydrated lime<br />
(BS EN 459-1)<br />
<strong>Hot</strong> <strong>Rolled</strong> <strong>Asphalt</strong> Yes Yes Yes No<br />
<strong>Asphalt</strong> <strong>Concrete</strong> (<strong>Macadam</strong>) Yes Yes Yes Yes<br />
Pervious <strong>Macadam</strong> Yes No No Yes<br />
Yes Suitable for use in material.<br />
No Not for use in material.<br />
TABLE 3.5 ACCEPTABILITY OF PAVING GRADE BITUMENS<br />
Material<br />
Bitumen (BS EN 12591) Grade<br />
40/60 70/100 100/150 160/220<br />
<strong>Hot</strong> <strong>Rolled</strong> <strong>Asphalt</strong> Yes Yes Yes No<br />
<strong>Asphalt</strong> <strong>Concrete</strong><br />
(<strong>Macadam</strong>)<br />
Surface course No No Yes Yes<br />
Binder course Yes Yes Yes No<br />
Pervious <strong>Macadam</strong> No No No Yes<br />
Yes Suitable for use in material / course.<br />
No Not for use in material / course.<br />
3.5 BINDER<br />
3.5.1 All binder used in the <strong>Hot</strong> <strong>Rolled</strong> <strong>Asphalt</strong><br />
<strong>and</strong> <strong>Asphalt</strong> <strong>Concrete</strong> (<strong>Macadam</strong>) shall be CE<br />
marked.<br />
3.5.2 The binder to be used for a particular<br />
material shall be in accordance with Table 3.5.<br />
3.5.3 The particular grade <strong>of</strong> bitumen for a<br />
material shall be selected based on a number <strong>of</strong><br />
factors in accordance with the requirements <strong>of</strong><br />
Sections 4, 5 <strong>and</strong> 6 for <strong>Hot</strong> <strong>Rolled</strong> <strong>Asphalt</strong>,<br />
<strong>Asphalt</strong> <strong>Concrete</strong> (<strong>Macadam</strong>) <strong>and</strong> Pervious<br />
<strong>Macadam</strong>, respectively.<br />
3.5.4 The binder shall be paving grade<br />
petroleum bitumen meeting the requirements <strong>of</strong><br />
BS EN 12591. The Contractor (or Supplier on his<br />
behalf) shall have Quality Assurance registration<br />
to the BS EN ISO 9000 series incorporating<br />
“Sector Scheme 15”, Supply <strong>of</strong> Paving Grade<br />
Bitumen.<br />
July 2010 9
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