As part of the research on cement composites using cellulose nanocrystal (CNC) aqueous solution instead of general water, this study produced high-toughness cement composites reinforced with flax and steel fibers to improve the tensile deformation capacity, assessing the isothermal conduction calorimetry analysis, drying shrinkage, and strength characteristics. The mixing amount of CNCs was 0.4, 0.8, and 1.2 vol.% by volume of cement, and an aqueous solution was prepared using the ultrasonication dispersion method. When comparing the results of the experiment according to the CNC mixing ratio, CNCs at 0.8 vol.% led to an improvement in the shrinkage rate and mechanical performance compared with the plain specimen.

中文翻译：

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纤维素纳米晶对纤维增强水泥复合材料干燥收缩及力学性能的研究

作为使用纤维素纳米晶 (CNC) 水溶液代替一般水的水泥复合材料研究的一部分，本研究生产了用亚麻和钢纤维增强的高韧性水泥复合材料以提高拉伸变形能力，评估等温传导量热分析，干燥收缩率和强度特性。CNCs的混合量为水泥体积的0.4、0.8和1.2体积％，并使用超声分散法制备水溶液。当根据 CNC 混合比比较实验结果时，与普通试样相比，0.8 vol.% 的 CNCs 导致收缩率和机械性能的提高。