THE ROLE OF CEMENT IN THE RECYCLING OF ASPHALT PAVEMENT COLD-STABILIZED WITH BITUMINOUS EMULSIONS

Recycling of asphalt mixtures by the demolition of old pavements is an interesting project opportunity to cut costs related to the procurement of new aggregates and, at the same time, promote the recycling culture in civil engineering. It is necessary to find out the correct way of using these materials, which must perform in the very same way as traditional ones besides passing a severe quality control. The current state of practice shows that adding small amounts of cement to reclaimed asphalt mixtures cold-stabilized by bituminous emulsions improves the mixture's general workability and mechanical strength. The aim of the experimental investigation whose main results are listed below was to study the function of cement as a regulating element of the bituminous emulsion setting and as a contributing factor to the achieving of a specific mechanical strength. To determine the behavior of the bituminous emulsion and of the cement in their combined use, experimental tests were carried out by exaggerating the doses to gain information about the cements hydration reaction as to the time of setting of the cement paste containing bituminous emulsion and as to the mechanical performance of mortar made of cement, bituminous emulsion and standard sand.

• Supplemental Notes:
  • Full conference proceedings available on CD-ROM.
• Corporate Authors:

  National Center for Asphalt Technology

  Auburn University, 277 Technology Parkway
  Auburn, AL  United States  36830
• Authors:
  • Montepara, A
  • GUILIANI, F
• Conference:
  • Second International Symposium on Maintenance and Rehabilitation of Pavements and Technological Control. Segundo Simposio Sobre Manutencao e Rehabilitacao de Pavimentos e Controle Technologico
  • Location: Auburn, Alabama
  • Date: 2001-7-29 to 2001-8-1
• Publication Date: 2001

Language

• English

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: 13p

Subject/Index Terms

• TRT Terms: Asphalt cement; Asphalt pavements; Bituminous binders; Cold mix paving mixtures; Emulsified asphalt; Pavement components; Reclaimed rubber; Recycled materials
• Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 00972443
• Record Type: Publication
• Report/Paper Numbers: 01-062
• Files: TRIS
• Created Date: Apr 30 2004 12:00AM