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EVALUATING HOT MIX ASPHALT CONTAINING WASTE AND BY-PRODUCT MATERIAL ASHES | ||
| journal of kerbala university | ||
| Article 1, Volume 12, Issue 2, 2016, Pages 130-141 PDF (0 K) | ||
| Author | ||
| Shakir Al-Busaltan | ||
| Abstract | ||
| It is well observed that filler types play a significant role in properties of Hot Mix Asphalt (HMA), from one side. From other side, currently, massive quantities of waste or by-product materials are resulted from local and global industrial processes, municipals services, and mining. Such waste or by-product materials reached to massive levels which bring a harmful impacts on human being life. Thus, this research is an attempt to evaluate the volumetric and mechanical properties of HMA comprising different composition of waste and/or by-product as filler materials. Cement Kiln Dust (CKD) was suggested as a partially and completely replacement to Ordinary Portland Cement (OPC) in HMA, while other two fillers were selected, up to 30% to help in activating the CKD; namely Silica Fume (SF), and Rice Husk Ash (RHA). Traditional volumetric and mechanical properties were conducted to evaluate the designed HMA, while microanalysis techniques were used as tools to characterise different filler types. Results showed that CKD with at less15% SF, or 27.5% RHA could bring design HMA to satisfy the local specification requirements, where totally replacement of CKD will not satisfy the local specification. Furthermore, microanalysis properties of different filler types can be vital tool to explain the variation in HMA properties. | ||
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