Utilization of Steel Slag as Aggregates for OGFC-13

Xu Lin Zhou; Hao Bo Hou; Can Hua Li; Wei Xin Wang; Min Zhou

doi:10.4028/www.scientific.net/AMR.1081.284

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1081Utilization of Steel Slag as Aggregates for...

Utilization of Steel Slag as Aggregates for OGFC-13

Abstract:

We propose a new method to make OGFC-13. By this method we select steel slag as coarse aggregate (whose diameter is bigger than 4.75mm) and limestone as fine aggregate, using the SBS modified asphalt to make OGFC-16. The Mix Proportion is 1^#(19-13.2mm,steel slag):2^#(13.2-9.5mm, steel slag):3^#(9.5-4.75mm, steel slag):4^#(4.75-0mm, limestone):mineral powder=13%:28%:45%:13%:1%. The optimal asphalt content (OAC) is 4.5%, the polyester fiber content is 0.3%, and the steel slag content reaches 86%. The increase of the amount of asphalt and polyester fiber doesn’t help to save costs. When the asphalt content is optimum, the run-off loss and Cantabro scattering loss satisfy the Chinese regulatory requirements. By Marshall Stability test, we find that the Marshall stability of OGFC-13 reaches 9.8kN, superior to China's traffic regulations. The water permeability coefficient of OGFC-13 is 37.0, which means that OGFC-13 has a strong water seepage performance. In a word, OGFC-13 made by our method can guarantee the driving security of the long-term use of the road and save a lot of road maintenance costs.

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Periodical:

Advanced Materials Research (Volume 1081)

Pages:

284-291

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1081.284

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Online since:

December 2014

Authors:

Xu Lin Zhou, Hao Bo Hou, Can Hua Li, Wei Xin Wang, Min Zhou

Keywords:

Asphalt Mixture (AC), Open-Graded Wearing Course (OGFC), Steel Slag of Converter

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