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Title: Determining Precoated Aggregate Performance on Chip Seals Using Vialit Test
Accession Number: 01333106
Record Type: Component
Abstract: In this study, Vialit test, which is used for determination of aggregate-bitumen adhesion, was used to examine performance of pre-coated aggregates with bitumen. A total of three different gradations of basalt and one gradation for limestone were used. The binder used in this study is having a penetration value of 100/150 (AC20). Aggregates were coated with bitumen at the following aggregate weight rates: 0, 0.5, 1.0, 1.5, and 2.0%. In the Vialit test, the amount of aggregate and bitumen to be applied on the plate was calculated in accordance with “AP-T68/06 Update of the Austroads Sprayed Seal Design Standard” test method; initial and final weights of aggregate were weighted, and the amount of loss of aggregate was determined. The optimum amount of bitumen was determined by conducting tests performed on samples at different precoated rates in different aggregate gradation and types and aggregate-bitumen adhesion was compared with the results obtained. Optimum bitumen rates of group AB, BB, CB, and CK aggregates were found at 2.0, 1.58, 1.53, and 1.57% respectively as a result of Vialit tests. Besides, precoated aggregate application has reduced losses of aggregate by 26.9, 61.2, 42.0, and 58.8%.
Monograph Title: Monograph Accession #: 01329018
Report/Paper Numbers: 11-1220
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Karasahin, MustafaAktas, BekirGurer, CahitPagination: 9p
Publication Date: 2011
Conference:
Transportation Research Board 90th Annual Meeting
Location:
Washington DC, United States Media Type: DVD
Features: Figures; Photos; References
(13)
; Tables
(4)
TRT Terms: Identifier Terms: Subject Areas: Highways; Materials; Pavements; I31: Bituminous Binders and Materials
Source Data: Transportation Research Board Annual Meeting 2011 Paper #11-1220
Files: TRIS, TRB
Created Date: Feb 17 2011 5:43PM
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