Print Email Facebook Twitter Micro-Mechanical Properties of Slag Rim Formed in Cement–Slag System Evaluated by Nanoindentation Combined with SEM Title Micro-Mechanical Properties of Slag Rim Formed in Cement–Slag System Evaluated by Nanoindentation Combined with SEM Author Zhang, Y. (TU Delft Materials and Environment) Liang, M. (TU Delft Materials and Environment) Gan, Y. (TU Delft Materials and Environment) Copuroglu, Oguzhan (TU Delft Materials and Environment) Date 2022 Abstract Slag rim mainly consists of secondary precipitations such as C–S–H gel phase and hydrotalcite-like phase, which originate from the hydration of slag. In this paper, the micro-mechanical properties of slag rim were characterized by nanoindentation in combination with SEM. It was found that, compared to the C–S–H gel phase, slag rim showed about a 15 GPa higher modulus of elasticity. At the early age, slag cement paste mainly consisted of low-density C–S–H gel phase, high-density C–S–H gel phase, and unhydrated slag particles, as well as calcium hydroxide based on the results of nanoindentation; at the later age, the system contained C–S–H gel phase, slag rim (a mixture of C–S–H gel phase and hydrotalcite-like phase), and unhydrated slag particles. Subject slag rimnanoindentation combined with SEMelastic modulushydrotalcite-like phase To reference this document use: http://resolver.tudelft.nl/uuid:5242b9a3-e59e-41f9-acaa-5bbbfc9bfb34 DOI https://doi.org/10.3390/ma15186347 ISSN 1996-1944 Source Materials, 15 (18), 1-14 Part of collection Institutional Repository Document type journal article Rights © 2022 Y. Zhang, M. Liang, Y. Gan, Oguzhan Copuroglu Files PDF materials_15_06347_v2.pdf 4.64 MB Close viewer /islandora/object/uuid:5242b9a3-e59e-41f9-acaa-5bbbfc9bfb34/datastream/OBJ/view