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Statistical analysis of mechanical properties for main cement phases by nanoindentation technique

机译：纳米狭窄技术主要水泥阶段力学性能统计分析

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摘要

This work focuses on mechanical properties of some phases of cement-based materials, portlandile (CH), calcite and clinker. Nano-indentation experiment is done on CSM instrument to verify the values of these cement pastes, Young moduli obtained by the averaged experimental load-depth curve is close to other references. The results show that: 1) the Young's modulus of CH averaged by nano-indentation experiment is 39.88GPa, which is in relative good agreement with the 40.30GPa by Constantinides, 36.00GPa by Acker and 45.95GPa by Laugesen. 2) By nano-indentation experiment, elastic moduli of CH, LD C-S-H, HD C-S-H, limestone filler and clinker are separately within the region of 38.8-50.6 GPa, 17.1-21.6GPa, 30.54-36.50 GPa, 79.S-90.6GPa and 94.26-114.18GPa. The elastic moduli are determined by experiment and the SKM image of these phases are verified, which is used to describe the microstructure and mechanical properties of this typical phases in cement paste.
机译：这项工作侧重于水泥基材料，波特兰（CH），方解石和熟料的一些阶段的机械性能。纳米缩进实验是在CSM仪器上进行的，以验证这些水泥糊的值，通过平均实验载荷深度曲线获得的幼体模量接近其他参考。结果表明：1）纳米压痕实验平均的杨氏模量为39.88gPa，与君士奈斯，36.00gPA的40.30gPA，由Acker和45.95GPA的40.30gPA相对良好的协议。 2）通过纳米压痕实验，CH，LD CSH，HD CSH，石灰石填料和熟料的弹性模量在38.8-50.6GPa，17.1-21.6gPa，30.54-36.50 GPA，79.S-90.6GPa的区域内单独分别在区域内单独分别在38.8-50.6GPa，17.1-20.6.6.50GPa，79.S-90.6GPa 94.26-114.18GPA。通过实验确定弹性模量，并验证这些相的SKM图像，其用于描述该典型阶段在水泥浆中的微观结构和机械性能。

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