Cement Stabilization of Reclaimed Asphalt Pavement Aggregate for Road Bases and Subbases
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- 1 June 2002
- journal article
- Published by American Society of Civil Engineers (ASCE) in Journal of Materials in Civil Engineering
- Vol. 14 (3) , 239-245
- https://doi.org/10.1061/(asce)0899-1561(2002)14:3(239)
Abstract
Pavement rehabilitation and reconstruction generates large quantities of reclaimed asphalt pavement (RAP) aggregate, and recycling into new asphalt paving mixtures is the predominant application. RAP acceptance in road bases and subbases has been limited, because of the lack of laboratory and field performance data. In the Sultanate of Oman, recycling of pavement materials is not practiced. A previous study conducted at Sultan Qaboos Univ. indicated that RAP-virgin aggregate mixtures could be utilized in the subbase layer rather than in the base course. This paper presents the results of a laboratory evaluation of cement stabilized RAP and RAP-virgin aggregate blends as base materials. Compaction and unconfined compressive strength tests were conducted on the following RAP/virgin aggregate mixtures: 100/0, 90/10, 80/20, 70/30, and 0/100%. Samples were prepared using 0, 3, 5, and 7% Type I portland cement and were cured for 3, 7, and 28 days in plastic bags at room temperature. A pavement design analysis o...Keywords
This publication has 3 references indexed in Scilit:
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- Lincoln Avenue Reclaimed Asphalt Pavement Base ProjectTransportation Research Record: Journal of the Transportation Research Board, 1996
- Construction and Performance of Shoulders Using UNRAP BaseJournal of Materials in Civil Engineering, 1993