Nanomechanical Characterization of Cement-Based Materials
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Nanoindentation technique is used to assess the mechanical properties of materials at nano-level. A very small tip (usually diamond) produces indents at the surface of the material to be tested. A load vs. deflection curve is generated and is used to study the elastic properties of materials. Generally, it is used for obtaining the hardness and Young’s modulus of materials at nano-meter scale. Currently, the method to evaluate the mechanical properties by nanoindentation is restricted to homogeneous materials. Cement-based materials are heterogeneous in nature. Therefore, nanoindentation study of cement-based materials is critical and requires several important steps, which need to be performed accurately. This chapter provides a review of the theory of nanoindentation, instruments being used for nanoindentation, sample preparation techniques, indentation strategy, and determination of nanomechanical properties and data analysis for cement-based materials.
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Barbhuiya, Salim; Nikraz, Hamid (2013)In this paper an attempt has been made to provide an overview on the use of nanoindentation technique in characterizing cement-based materials. The basic principle of nanoindentation is described. The mathematical formulation ...
Zhu, W.; Howind, T.; Barbhuiya, Salim; Stark, R.; Bernd, K.; Jorge, D. (2012)The study is related to the EU 7th Framework Programme CODICE (COmputationally Driven design of Innovative CEment-based materials) project. The main aim of the project is the development of a multi-scale model for the ...
Comparative Deflection Hardening Behavior of Fly Ash-Based Geopolymer Composite with the Conventional Cement-Based CompositeNematollahi, B.; Sanjayan, J.; Shaikh, Faiz (2014)This paper compares the behavior of a recently developed fly ash-based ductile fiber reinforced geopolymer composite (DFRGC) exhibiting deflection hardening and multiple cracking behavior in flexure with its cement-based ...