Micro-Cantilever Testing Of Cementitious Materials Under Various Loading Conditions

Conference paper (2019)

Authors

Y. Gan Materials and Environment - CEG
H. Zhang Materials and Environment - CEG
B. Šavija Materials and Environment - CEG
E. Schlangen Materials and Environment - CEG
K. van Breugel Materials and Environment - CEG
Research Group
Materials and Environment (CEG) (TU Delft)
Copyright: © 2019 Y. Gan, H. Zhang, B. Šavija, E. Schlangen, K. van Breugel
DOI: https://doi.org/10.21012/FC10.235598
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Published Date

2019

Language

English

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Faculty

Civil Engineering & Geosciences

Department

Materials- Mechanics- Management & Design

Research Group

Materials and Environment

Abstract

Nanoindentation is usually used to investigate local elastic properties and hardness of materials. In this paper, the nanoindenter served as a loading tool to perform micro scale bending tests and measure the global response of micro-scale specimens. For testing, cement paste cantilever beams with a square cross-section of 300 μm × 300 μm were fabricated using a micro dicing saw. Monotonic, cyclic and sustained loading bending tests were conducted on the beams using the nanoindenter. The load-deflection behaviours of micro-cantilever beams subjected to various loading conditions are presented in this paper. The interpretation of experimental results regarding the measured deflection of beam is discussed. With this micro-scale test method, the fracture strength as well as time-dependent responses of cement paste at the micrometre level can be assessed in a straightforward manner.

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