Abstract
The focus of this study was to evaluate the effects of stockpiling (aging) on leaching of elements in recycled concrete aggregate (RCA) that may contribute to tufaceous constituent formation. Speciation and leaching controlling mechanisms of these elements were identified via geochemical modeling. The effects of stockpiling were simulated by comparing freshly produced RCA with RCA aged as part of this study for 1 year both in the laboratory and in the field. Leachate samples were generated following batch water leach test (WLT) and US Geological Survey leach test (USGSLT) methods. USGSLTs were conducted both on the laboratory and field samples while WLT was only conducted on laboratory samples. During the laboratory aging, it is observed that the carbonate content of RCA, measured as calcite equivalent, increased 20 % (i.e., from ∼100 to 120 mg/g) within a year time frame. The leachate extracted from RCA showed minor changes in pH and more significant decreases in electrical conductivity (i.e., ∼300 to 100 μS/cm). A comparison between laboratory and field samples revealed that the RCA aged much slower in the field than in the laboratory within a year. Comparisons between two leach extraction methods on the laboratory conditions showed that the total leached concentrations (TLCs) of most of the constituents from USGSLT were appreciably lower than the ones measured via WLT method. The results of geochemical modeling analyses showed that Al, Si, Fe, Ca, Mg, and Cu exist in their oxidized forms as Al3+, Fe3+, Si4+, Ca2+, Mg2+, and Cu2+ and results revealed that these elements are primarily controlled by the solubility of gibbsite, hematite, silica gel, calcite, magnesite, and tenorite solid phases, respectively. One of the significant findings of the study was to identify the changes in leaching behavior of Ca, Si, Mg, Al, Fe, and Cu due to carbonation.
Similar content being viewed by others
References
Abbas A, Fathifazl G, Fournier B, et al. (2009) Quantification of the residual mortar content in recycled concrete aggregates by image analysis. Mater Charact 60:716–728. doi:10.1016/j.matchar.2009.01.010
Akbarnezhad A, Ong KCG, Zhang MH, Tam CT (2013) Acid treatment technique for determining the mortar content of recycled concrete aggregates. J Test Eval 41:20120026. doi:10.1520/JTE20120026
Allison JD, Brown DS, Kevin J, et al (1991) MINTEQA2/PRODEFA2, a geochemical assessment model for environmental systems: Version 3.0 user’s manual. Environmental Research Laboratory, Office of Research and Development, US Environmental Protection Agency Athens, GA
Apul DS, Gardner KH, Eighmy TT, et al. (2005) Simultaneous application of dissolution/precipitation and surface complexation/surface precipitation modeling to contaminant leaching. Environ Sci Technol 39:5736–5741. doi:10.1021/es0486521
ASTM C127 (2012) Test method for density, relative density (Specific Gravity), and absorption of coarse aggregate. ASTM International
ASTM C128 (2012) Test method for density, relative density (Specific Gravity), and absorption of fine aggregate. ASTM International
ASTM C702 (2011) Standard practice for reducing samples of aggregate to testing size. ASTM International, West Conshohocken, PA
ASTM D3665 (2012) Standard practice for random sampling of construction materials. ASTM International, West Conshohocken, PA
ASTM D3987 (2012) Standard test method for shake extraction of solid waste with water. ASTM International, West Conshohocken, PA
ASTM D422 (2007) Test methods for particle-size analysis of soils. ASTM International, West Conshohocken, PA
ASTM D4318 (2010) Test method for liquid limit, plastic limit, and plasticity index of soils. ASTM International, West Conshohocken, PA
ASTM D4373 (2014) Standard test method for rapid determination of carbonate content of soils. ASTM International, West Conshohocken, PA
ASTM D559 (2003) Test methods for wetting and drying compacted soil-cement mixtures. ASTM International, West Conshohocken, PA
Astrup T, Dijkstra JJ, Comans RNJ, et al. (2006) Geochemical modeling of leaching from MSWI air-pollution-control residues. Environ Sci Technol 40:3551–3557. doi:10.1021/es052250r
Babushkin VI, Matveyev GM, Mchedlov-Petrossyan OP (1985) Thermodynamics of silicates. Springer-Verlag, Berlin
Bish DL, Post JE (1993) Quantitative mineralogical analysis using the Rietveld full-pattern fitting method. Am Mineral 78:932–940
Brookins DG (1988) Eh-pH diagrams for geochemistry. Springer Science & Business Media
Cetin B, Aydilek AH, Li L (2013) Trace metal leaching from embankment soils amended with high-carbon fly ash. J Geotech Geoenviron Eng 140:1–13
Chen J, Bradshaw S, Benson CH, et al (2012) pH-Dependent leaching of trace elements from recycled concrete aggregate. In: Proc., GeoCongress 2012. pp 3729–3738
Chen J, Tinjum J, Edil T (2013) Leaching of alkaline substances and heavy metals from recycled concrete aggregate used as unbound base course. Transp Res Rec J Transp Res Board 2349:81–90. doi:10.3141/2349-10
Chen Q, Zhang L, Ke Y, et al. (2009) Influence of carbonation on the acid neutralization capacity of cements and cement-solidified/stabilized electroplating sludge. Chemosphere 74:758–764. doi:10.1016/j.chemosphere.2008.10.044
Cornelis G, Johnson CA, Gerven TV, Vandecasteele C (2008) Leaching mechanisms of oxyanionic metalloid and metal species in alkaline solid wastes: a review. Appl Geochem 23:955–976. doi:10.1016/j.apgeochem.2008.02.001
Davidson EA, Trumbore SE (1995) Gas diffusivity and production of CO2 in deep soils of the eastern Amazon. Tellus B 47:550–565
Dijkstra JJ, Meeussen JCL, Comans RNJ (2004) Leaching of heavy metals from contaminated soils: an experimental and modeling study. Environ Sci Technol 38:4390–4395. doi:10.1021/es049885v
Drever JI (1997) The geochemistry of natural waters: surface and groundwater environments. Prentice Hall
Edil TB, Tinjum JM, Benson CH (2012) Recycled unbound materials. Minnesota Department of Transportation, Saint Paul, Minnesota
Engelsen CJ, van der Sloot HA, Wibetoe G, et al. (2009) Release of major elements from recycled concrete aggregates and geochemical modelling. Cem Concr Res 39:446–459. doi:10.1016/j.cemconres.2009.02.001
Engelsen CJ, Wibetoe G, van der Sloot HA, et al. (2012) Field site leaching from recycled concrete aggregates applied as sub-base material in road construction. Sci Total Environ 427–428:86–97. doi:10.1016/j.scitotenv.2012.04.021
Fruchter JS, Rai D, Zachara JM (1990) Identification of solubility-controlling solid phases in a large fly ash field lysimeter. Environ Sci Technol 24:1173–1179. doi:10.1021/es00078a004
Gitari WM, Fatoba OO, Petrik LF, Vadapalli VRK (2009) Leaching characteristics of selected South African fly ashes: effect of pH on the release of major and trace species. J Environ Sci Health Part A 44:206–220. doi:10.1080/10934520802539897
Hageman PL (2007) U.S. Geological Survey field leach test for assessing water reactivity and leaching potential of mine wastes, soils, and other geologic and environmental materials.
Hampson CJ, Bailey JE (1982) On the structure of some precipitated calcium alumino-sulphate hydrates. J Mater Sci 17:3341–3346. doi:10.1007/BF01203504
Huijgen WJJ, Comans RNJ (2006) Carbonation of steel slag for CO2 sequestration: leaching of products and reaction mechanisms. Environ Sci Technol 40:2790–2796. doi:10.1021/es052534b
de Juan MS, Gutiérrez PA (2009) Study on the influence of attached mortar content on the properties of recycled concrete aggregate. Constr Build Mater 23:872–877. doi:10.1016/j.conbuildmat.2008.04.012
Kitamura H, Sawada T, Shimaoka T, Takahashi F (2015) Geochemically structural characteristics of municipal solid waste incineration fly ash particles and mineralogical surface conversions by chelate treatment. Environ Sci Pollut Res 1–10. doi: 10.1007/s11356-015-5229-5
Komonweeraket K, Cetin B, Aydilek AH, et al. (2015) Effects of pH on the leaching mechanisms of elements from fly ash mixed soils. Fuel 140:788–802. doi:10.1016/j.fuel.2014.09.068
Kosson DS, van der Sloot HA, Sanchez F, Garrabrants AC (2002) An integrated framework for evaluating leaching in waste management and utilization of secondary materials. Environ Eng Sci 19:159–204. doi:10.1089/109287502760079188
Kuo S-S, Mahgoub H, Nazef A (2002) Investigation of recycled concrete made with limestone aggregate for a base course in flexible pavement. Transp Res Rec J Transp Res Board 1787:99–108. doi:10.3141/1787-11
Kurdowski W (2014) Cement and concrete chemistry. Springer Science & Business
Lagoeiro LE (1998) Transformation of magnetite to hematite and its influence on the dissolution of iron oxide minerals. J Metamorph Geol 16:415–423. doi:10.1111/j.1525-1314.1998.00144.x
Langmuir D (1997) Aqueous environmental geochemistry. Prentice Hall
Lawrence CD (1981) Durability of concrete: molecular transport processes and test methods. Cement and Concrete Association, [Slough, Eng.]
Li X (2008) Recycling and reuse of waste concrete in China: part I. Material behaviour of recycled aggregate concrete. Resour Conserv Recycl 53:36–44. doi:10.1016/j.resconrec.2008.09.006
Lindsay WL (1979) Chemical equilibria in soils. Wiley
Majumdar AJ, Stucke MS (1981) Microstructure of glass fibre reinforced supersulphated cement. Cem Concr Res 11:781–788. doi:10.1016/0008-8846(81)90037-5
Millington RJ, Shearer RC (1971) Diffusion in aggregated porous media. Soil Sci 111:372–378
NADP (2012) National Atmospheric Deposition Program Annual Maps. http://nadp.sws.uiuc.edu/ntn/annualmapsByYear.aspx#2012. Accessed 3 Nov 2013
Perkins RB, Palmer CD (1999) Solubility of ettringite (Ca6[Al(OH)6]2(SO4)3 • 26H2O) at 5–75 °C. Geochim Cosmochim Acta 63:1969–1980. doi:10.1016/S0016-7037(99)00078-2
Poon C-S, Qiao XC, Chan D (2006) The cause and influence of self-cementing properties of fine recycled concrete aggregates on the properties of unbound sub-base. Waste Manag 26:1166–1172. doi:10.1016/j.wasman.2005.12.013
Raudsepp M, Pani E (2003) Application of Rietveld analysis to environmental mineralogy. In: Environmental aspects of mine wastes. Mineralogical Association of Canada, Québec, Canada, pp 165–180
Roy DM (1986) Mechanisms of cement paste degradation due to chemical and physical factors. In: 8th International Congress on the Chemistry of Cement. Rio de Janeiro, pp 362–380
Sadecki RW, Busacker GP, Moxness KL, et al (1996) An investigation of water quality in runoff from stockpiles of salvaged concrete and bituminous paving
Santana GP, Fabris JD, Goulart AT, Santana DP (2001) Magnetite and its transformation to hematite in a soil derived from steatite. Rev Bras Ciênc Solo 25:33–42
Scrivener KL, Füllmann T, Gallucci E, et al. (2004) Quantitative study of Portland cement hydration by X-ray diffraction/Rietveld analysis and independent methods. Cem Concr Res 34:1541–1547. doi:10.1016/j.cemconres.2004.04.014
van der Sloot HA (2000) Comparison of the characteristic leaching behavior of cements using standard (EN 196-1) cement mortar and an assessment of their long-term environmental behavior in construction products during service life and recycling. Cem Concr Res 30:1079–1096. doi:10.1016/S0008-8846(00)00287-8
Sparks DL (2003) Environmental Soil Chemistry. Academic Press
Steffes R (1999) Laboratory study of the leachate from crushed Portland cement concrete base material. Iowa Department of Transportation, Ames, Iowa
Stumm W, Morgan JJ (1996) Aquatic Chemistry: Chemical Equilibria and Rates in Natural Waters, A Wiley-Interscience Publication, John Wiley and Sons, Inc., New York
Suzuki K, Nishikawa T, Ito S (1985) Formation and carbonation of C-S-H in water. Cem Concr Res 15:213–224. doi:10.1016/0008-8846(85)90032-8
Taylor HF (1997) Cement chemistry. Thomas Telford
Weather Underground (2013) CENTREweather Weather | Personal Weather Station: KVACENTR1 by Wunderground.com. http://www.wunderground.com/personal-weather-station/dashboard?ID=KVACENTR1#history. Accessed 3 Nov 2013
Weather Underground (2015) CENTREweather Weather | Personal Weather Station: KVACENTR1 by Wunderground.com | Weather Underground. http://www.wunderground.com/personal-weather-station/dashboard?ID=KVACENTR1#history/s20131213/e20141214/myear. Accessed 28 Jan 2015
Acknowledgments
Virginia Department of Transportation (VDOT) and Virginia Center for Transportation Innovation and Research (VCTIR) provided financial support for this research. However, the conclusions and recommendations are those of the authors and do not reflect the opinions or policies of VDOT or VCTIR. The authors would also like to extend gratitude to Dr. Robert Jonas, Ms. Monica Marcelli, and Dr. Gregory Foster for graciously allowing the research team to utilize their ecology and chemistry laboratories in George Mason University. We thank the reviewers for their constructive and valuable comments to improve the quality of the article.
Author information
Authors and Affiliations
Corresponding author
Additional information
Responsible editor: Philippe Garrigues
Rights and permissions
About this article
Cite this article
Abbaspour, A., Tanyu, B.F. & Cetin, B. Impact of aging on leaching characteristics of recycled concrete aggregate. Environ Sci Pollut Res 23, 20835–20852 (2016). https://doi.org/10.1007/s11356-016-7217-9
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11356-016-7217-9