The Application of Berkovich nanoindenter to the study of interfacial transition zone in concretes containing fly-ash
Grzegorz Golewski
Department of Civil Engineering; Faculty of Civil Engineering and Architecture; Lublin University of Technology (Poland)
https://orcid.org/0000-0001-9325-666X
Abstract
The paper presents the results of nanohardness (HB) in the Interfacial Transition Zones (ITZ) of concretes with the addition of 0, 20 and 30% siliceous fly ashes (FA). A compact platform CSM Instruments was used in the testing. An area in the ITZ of coarse aggregates with paste was analysed in the five measurement points during the experiments, i.e. at the distance of: 5, 25, 50, 100 and 150 µm from the grain boundary. The indents in concrete were create by Berkovich indenter using DSI technique. Analysis of the results revealed that the 20% additive of FA causes a few percent increase in nanohardness, while 30% FA additive leads to between ten and twenty percent drop of HB. On the basis of nanohardness distributions in particular concretes, it was found that the most heterogeneous one is the ITZ zone within the distance of 25µm from the aggregate grain.
Keywords:
concrete, fly ash, interfacial transition zone, nanohardnessReferences
Giergiczny Z., Małolepszy J., Szwabowski J., Śliwiński J. Cementy z dodatkami mineralnymi w technologii betonów nowej generacji. Instytut Śląski Sp. z o.o., Opole 2002.
Google Scholar
Golewski G.L. Analiza odporności na pękanie, przy trzecim modelu pękania betonów z dodatkiem popiołów lotnych. Budownictwo i Architektura 12 (3) (2013) 145-152.
Google Scholar
Golewski G.L., Sadowski T. An analysis of shear fracture toughness KIIc and microstructure in concretes containing fly-ash. Construction and Building Materials 51 (2014) 207-214.
Google Scholar
Brandt A.M. Wpływ warstwy przejściowej na właściwości mechaniczne betonów wysokowartościowych (BWW). II Konferencja Naukowo-Techniczna MATBUD’98, Kraków-Mogilany 1998, 21-30.
Google Scholar
Barnes, B.D., Diamond, S., Dolch W.L. The contact zone between Portland cement paste and glass “aggregate” surfaces. Cement and Concrete Research 8 (1978) 233-243.
Google Scholar
Zimbelmann R.A. Contribution to the problem of cement-aggregate bond. Cement and Concrete Research 15 (1985) 801-808.
DOI: https://doi.org/10.1016/0008-8846(85)90146-2
Google Scholar
Brandt A.M., Kasperkiewicz J. (red.) Metody diagnozowania betonów i betonów wysokowartościowych na podstawie badań strukturalnych. IPPT PAN, Warszawa 2003.
Google Scholar
Kasperkiewicz J., Sobczak M. O możliwości oceny wytrzymałości betonu na podstawie badania mikrotwardości. Cement Wapno Beton 3 (2004) 138-142.
Google Scholar
Lyubimova T.J., Pinus E.R. Crystallization processes in the contact zone between aggregate and matrix in the cement concrete. Kolloidnyi Zhurnal 24 (5) (1962) 578-587 (in Russian).
Google Scholar
Wei S., Mandel J.A., Said S. Study of the interface strength in steel-fiber reinforced cement-based composites. ACI Journal 83 (1986) 597-605.
Google Scholar
Zhu W., Bartos P.J.M. Application of depth-sensing microindentation testing to study of interfacial transition zone in reinforced concrete. Cement and Concrete Research 30 (2000) 1299-1304.
Google Scholar
Wang G., Kong Y., Sun T., Shui Z. Effect of water-binder ratio and fly ash on the homogeneity of concrete. Construction and Building Materials 38 (2013) 1129-1134.
Google Scholar
Duan P., Shui Z., Chen W. Shen Ch. Effects of metakaolin, silica fume and slag on pore structure, interfacial transition zone and compressive strength of concrete. Construction and Building Materials 44 (2013) 1-6.
DOI: https://doi.org/10.1016/j.conbuildmat.2013.02.075
Google Scholar
Igarashi S., Bentur A., Mindess S. Microhardness testing of cementitious materials. Advanced Cement Based Materials 4 (1996) 48-57.
DOI: https://doi.org/10.1016/S1065-7355(96)90051-6
Google Scholar
Oliver W.C., Pharr G.M. An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments. Journal of Materials Research 7 (1992) 1564-1583.
Google Scholar
Wang X.H., Jacobsen S., He J.Y., Zhang Z.L., Lee S.F., Lein H.L. Application of nanoindentation testing to study of the interfacial transition zone in steel fiber reinforced mortar. Cement and Concrete Research 39 (2009) 701-715.
Google Scholar
Mondal P., Shah S.P., Marks L.D. Nanoscale characterization of cementitious materials. ACI Materials Journal 105 (2008) 174-179.
Google Scholar
Xiao J., Li W., Sun Z., Lange D.A., Shah S.P. Properties of interfacial transition zone in recycled aggregate concrete tested by nanoindentation. Cement and Concrete Composites 37 (2013) 276-292.
Google Scholar
Trik P., Bartos P.J.M. Micromechanical properties of cementitious composites. Materials and Structures 32 (1999) 388-393.
Google Scholar
Velez K., Maximilien S., Damidot D., Fantozzi G., Sorrentino F. Determination by nanoindentation of elastic modulus and hardness of pure constituents of Portland cement clinker. Cement and Concrete Research 31 (2001) 555-561.
Google Scholar
Glinicki M.A., Kasperkiewicz J., Sobczak M., Zieliński M. Badanie mikrotwardości betonu za pomocą wgłębnika Vickersa. 49 Konferencja Naukowa KILiW PAN i KN PZITB, Warszawa-Krynica 2003, t. III, 139-146.
Google Scholar
Glinicki M.A., Krzywobłocka-Laurów R., Ranachowski Z., Dąbrowski M., Wołowicz J. Analiza mikrostruktury betonów modyfikowanych dodatkiem popiołów lotnych wapiennych. Drogi i Mosty 2 (2013) 173-189.
Google Scholar
Constantinides G., Ulm F.-J. The effects of two types of C-S-H on the elasticity of cement-based materials: Results from nanoindentation and micromechanical modeling. Cement and Concrete Research 34 (2004) 67-80.
DOI: https://doi.org/10.1016/S0008-8846(03)00230-8
Google Scholar
Mondal P., Shah S.P., Marks L. A reliable technique to determine the local mechanical properties at the nanoscale for cementitious materials. Cement and Concrete Research 37 (2007) 1440-1444.
Google Scholar
Sorelli L., Constantinides G., Ulm F.-J., Toutlemonde F. The nano-mechanical signature of Ultra High Performance Concrete by statistical nanoindentation techniques. Cement and Concrete Research 38 (2008) 1447-1456.
Google Scholar
Zhu W., Hughes J.J. Bicanic N., Pearce Ch.J. Nanoindentation mapping of mechanical properties of cement paste and natural rocks. Materials Characterization 58 (2007) 1189-1198.
Google Scholar
Fischer-Cripps A.C. Nanoindentation. Second Edition. Springer - Verlag, New York, LLC 2010.
DOI: https://doi.org/10.1007/978-1-4419-9872-9_11
Google Scholar
Wang Z.-J., Wang Q., Wei Y.-F. Effects on mineral admixtures and superplasticizers on micro-hardness of aggregate-paste interface in cement concrete. Journal of Shanghai Jiaotong University (Science) 17 (5) (2012) 629-634.
DOI: https://doi.org/10.1007/s12204-012-1335-4
Google Scholar
Authors
Grzegorz GolewskiDepartment of Civil Engineering; Faculty of Civil Engineering and Architecture; Lublin University of Technology Poland
https://orcid.org/0000-0001-9325-666X
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