Effect of Heating & Mixing on Properties of Recycled Aggregate and Asphalt Mixture Prepared with

Title: Effect of Heating & Mixing on Properties of Recycled Aggregate and Asphalt Mixture Prepared with
Author(s): Deyu KONG, Honggui HU, Tongyuan NI, Chaoyin LIU
Paper category : conference
Book title: 2nd International Conference on Waste Engineering and Management - ICWEM 2010
Editor(s): J.Zh. Xiao, Y. Zhang, M.S. Cheung and Reuben P. K. Chu
Print-ISBN: 978-2-35158-102-5
e-ISBN: 978-2-35158-103-2
Publisher: RILEM Publications SARL
Publication year: 2010
Pages: 173 - 180
Total Pages: 8
Nb references: 11
Language: English

Abstract: Effects of heating and mixing on properties of the RA and the hot-mixed asphalt admixture prepared with were investigated in this paper. The results showed that crushing value of the RA decreased after heated & mixed. The passing percent in each sieve rose obviously, and the smaller the sieve size is, the higher the passing percent. The passing percent in 0.075mm sieve may even surpass the upper limit while designing based on the median value of the gradation requirement of AC-16I. It is suggested that the initial designed passing percent at each sieve size should be a little lower than the expected, which can assure that the final actual passing percent can nearly reach the expected value after the heating & mixing process, thus the optimum asphalt content of the HMA can be lowered.

Online publication: 2011-01-25
Publication type : full_text
Public price (Euros): 0.00