Development of Recycled-Modified Asphalt Using Basalt Aggregate
With the strengthened regulation on the mandatory use of recycled aggregate, development of construction materials using recycled aggregate has recently increased. This study aimed to secure the performance of asphalt concrete mixture by developing recycled-modified asphalt using recycled basalt aggregate from the Jeju area. The strength of the basalt aggregate from the Jeju area used in this study was similar to that of general aggregate, while the specific surface area was larger due to the development of pores. Modified asphalt was developed using a general aggregate-recycled aggregate ratio of 7:3, and the results indicated that the Marshall stability increased by 27% compared to that of asphalt concrete mixture using only general aggregate, and the flow values showed similar levels. Also, the indirect tensile strength increased by 79%, and the toughness increased by more than 100%. In addition, the TSR for examining moisture resistance was 0.95 indicating that the reduction in the indirect tensile strength due to moisture was very low (5% level), and the developed recycled-modified asphalt could satisfy all the quality standards of asphalt concrete mixture.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1110962Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF
 Ministry of Environment, Status of national wastes generation and disposal (2013). Report, Korea, 2014
 S. D. Hwang, and S. H. Ahn, Characteristics of high-temperature behavior of asphalt mixtures by aggregate types, Technical Notes, Korean Society of Pavement Engineers, Vol.2, No.4, pp.50-56, 2000.
 M. H. Jang, and H. B. Choi, “Quality Evaluation of Basalt Aggregates from JEJU Island”, J. of the Korea Institute of Building Construction, Vol.13, No.5, pp.449-456, May 2013.
 R. W. Le Maitre, “A proposal by the IUGS subcommission on the systematics of igneous rocks for a chemical classification of volcanic rocks based on the total alkali silica (TAS) diagram”, Australian J. of Earth Sci., Vol.31, pp.243-255, 1984.
 J. M. Nam, J. M. Yun, Y. S. Song, and J. H. Kim, “Analysis of Engineering Properties to Basalt in Cheju island”, J. Korean Geosynthetics Society, Vol.7, No.1, pp.13-21, Mac. 2008.
 K. T. Moon, S. Y. Park, Y. C. Kim, and S. B. Yang, “Mechanical Characteristics of Basalt in Jeju Island with Relation to Porosity”, J. of the Korean Society of Civil Engineers, Vol.34, No.4, pp.1215-1225, Aug. 2014.
 N. H. Kim, J. C. Kim, J. P. Hong, and K. W. Kim, “Evaluation of Fundamental Properties of Warm-mix Recycled Asphalt Concretes”, J. of the Korean Society Road Engineers, Vol.12, No.4, pp.111-120, Dec. 2010.
 J. W. Lee, M. S. Lee, Y. J. Kim, D. W. Cho, and S. A. Kwon, “Evaluation of Warm-Recycled Asphalt Mixtures using Polyethylene Wax-Based Additive”, Inter. J. Highway Engineers, Vol.15, No.4, pp.43-51, Aug. 2013.