Cement stabilisation of milled asphalt concrete surface

Laboratory evaluation on cement stabilized milled asphalt concrete from two roads in Thailand is conducted. Both milled asphalt concrete chips are mixed with cement for 1, 3, 5 and 7 percent by weight, are cured for 1, 3, 7, 14 and 28 days before being tested for unconfined compression and CBR. In addition some tests are conducted on the sampled milled asphalt concrete mixed with 50 percent crushed rock. A number of conclusions could be drawn as follows. 1. Milled asphalt concrete requires 6.5 percent cement by weight to develop an unconfined compressive strength of 1.75 N7mm2 after 7 days curing. 2. Milled asphalt concrete requires 4.0 percent cement by weight to develop a soaked CBR over 100 after 7 days curing. 3. Milled asphalt concrete mixed with 50 percent crushed rock required only 2 percent cement to develop both UCS criteria. 4. Asphalt content in the milled asphalt concrete is 4.0 - 4.3 percent. 5. Results obtained could be used to set up the specifications for cement in-place recycling of the existing asphalt concrete wearing course, and of the asphalt concrete wearing course mixed with crushed granular base for field quality control.

Language

  • English

Media Info

  • Pagination: 12p
  • Monograph Title: First International Symposium on Subgrade Stabilisation and In Situ Pavement Recycling Using Cement, Salamanca, Spain, 1-4 October 2001

Subject/Index Terms

Filing Info

  • Accession Number: 01392477
  • Record Type: Publication
  • Source Agency: ARRB
  • ISBN: 8489875278
  • Files: ATRI
  • Created Date: Aug 23 2012 7:09AM