Investigating Effects of Clay and Carbonaceous Nanoparticles on Asphalt Degradation Aerobic Microorganisms
Novelty in Biomedicine,
Vol. 7 No. 1 (2019),
14 January 2019
AbstractBackground: Hot mix asphalt (HMA) is one of the most important structures to implement the road and street surfaces, which always exposed to destruction. Provide new solutions to reduce the destructive process of effective factors on asphalt destruction and increasing prolong of its lifetime is important for society of road engineers. Traffic loading and weather conditions are the major factors that have role on different asphalt destruction.
Materials and Methods: In this study, three types of HMAs, which contain nanoclay, and carbon nanotubes were produced by Marshall method in Iran University of Science and Technology, and one type of aged HMA were also collected for further investigations. The HMA samples were transferred to microbiology laboratory of Shahid Beheshti University of Medical Sciences, and then suspensions were prepared from specimens and cultured on nutrient agar medium. After 24 hours’ incubation at 37 ̊C the bacteria that were grown on the plate were identified. At least the effect of clay and carbon nanoparticles on minimum inhibitory concentration (MIC) of bacteria, were determined by microdilution broth method.
Results: A lot of bacterial colonies (Bacillus and Pseudomonas) were collected from the aged specimens. The asphalt, which contain nanoclay had more bacteria than the nanocarbon asphalt. The carbon and clay nanoparticles in 2% and 4% concentration prevented the growth of bacteria, respectively.
Conclusion: The old asphalt had more bacteria than other samples, which shows bacteria are one of the main factors in decomposition of asphalt by applying corrosion to bituminous hydrocarbons. Presence of clay and carbon nanoparticles in asphalt structures could increase the durability of the HMAs and reduce the relevant economics costs.
How to Cite
Kishchynskyi S, Nagaychuk V, Bezuglyi A. Improving quality and durability of bitumen and asphalt concrete by modification using recycled polyethylene based polymer composition. Procedia engineering. 2016;143:119-27.
Nciri N, Song S, Kim N, Cho N. Chemical characterization of gilsonite bitumen. Journal of Petroleum & Environmental Biotechnology. 2014;5(5):1.
Huang B, Li G, Shu X. Investigation into three-layered HMA mixtures. Composites Part B: Engineering. 2006;37(7-8):679-90.
Seed HB, Chan CK, Lee CE. Resilience characteristics of subgrade soils and their relation to fatigue failures in asphalt pavements. InInternational Conference on the Structural Design of Asphalt Pavements. SupplementUniversity of Michigan, Ann Arbor 1962.
Xiao F, Jordan J, Amirkhanian SN. Laboratory investigation of moisture damage in warm-mix asphalt containing moist aggregate. Transportation Research Record. 2009;2126(1):115-24.
Benefield L, Parker F. Effect of Microbial Degradation on Bond Between Asphaltic Concrete Layers. Highway Research Center, Harbert Engineering Center, the University;1989.
Da Silva GP, Mack M, Contiero J. Glycerol: a promising and abundant carbon source for industrial microbiology. Biotechnology advances. 2009;27(1):30-9.
Streeter K, Katouli M. Pseudomonas aeruginosa: A review of their Pathogenesis and Prevalence in Clinical Settings and the Environment. Infection, Epidemiology and Microbiology. 2016;2(1):25-32.
Murray PR, Rosenthal KS, Pfaller MA. Medical microbiology. Elsevier Health Sciences; 2015.
Ismaeili MS, Shamsian M, Bayat Ka, Kord B. Effect of Chemical Modification of Wood Flour on Properties of Polypropylene-Nano Sio2 Hybrid Nanocomposite. Iranian Journal of Wood and Paper Science Research. 2016:30(4):674-89.
Haiati P, Ziari H, Sobhani J. Engineering Properties of SCC for Airfield Concrete Pavements. 201;7(1):83-97.
Kordi S, Shafabakhsh GH. The Feasibility of the effect of nano Al2O3 on behavior of stone mastic asphalt mixtures against dynamic loads. 2016;2(1):69-84.
Phillips UA, Traxler RW. Microbial degradation of asphalt. Applied microbiology. 1963;11(3):235-8.
- Pendrys JP. Biodegradation of asphalt cement-20 by aerobic bacteria. Applied and environmental microbiology. 1989;55(6):1357-62.
Sadighbayan K, Mazaheri AM, Farazmand A, Monadi A, Aliasgharzad N. Evaluation of Biodegradation of Petroleum Aromatic Compounds with Soil Microorganisms in Tabriz City. journal of natural environment (iranian journal of natural resources). 2016;69(3):757-71.
- Abstract Viewed: 308 times
- PDF Downloaded: 232 times