THE EFFECT OF AGGREGATES ON AN ASPHALTIC CONCRETE

INFLUENCIA DOS INERTES NUM BETAO BETUMINOSO

The influence of the percentage of sand fines/coarse aggregate ratio, and fines composition on the properties of asphaltic concrete, is evaluated by means of the Marshall test. Seven granulometric compositions were tested in which the percentages of the aggregates used varied. The findings were as follows: (a) The increase in the percentage of sand results in a less compact and less resistance concrete which is less susceptible to deformations. (b) The increase in crushed fines (material passing the No. 10 ASTM sieve) from 28 to 36 percent leads to a reduction in strength and deformability. (c) High-strength concrete seems to be more liable to deformation.

• Corporate Authors:

  Centro de Documentacao Technico-Economica

  Edificio do Ministerio do Ultramar, 6 piso, Restelo
  Lisbon 3,   Portugal 
• Authors:
  • Magalhaes, J M
• Publication Date: 1969-7

Language

• Portuguese

Media Info

• Features: Figures; Tables;
• Pagination: p. 201-211
• Serial:
  • Fomento
  • Volume: 7
  • Issue Number: 3
  • Publisher: Centro de Documentacao Technico-Economica

Subject/Index Terms

• TRT Terms: Asphalt concrete; Coarse aggregates; Concrete; Deformation; Fine materials; High strength concrete; Marshall test; Sand
• Old TRIS Terms: Concrete composition; Marshall stability marshall stability & flow test flow
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00081065
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Mar 26 1975 12:00AM