The aim of this study was to experimentally determine the creep and shrinkage properties of plain geopolymer and carbon-fiber-reinforced geopolymer concretes. The creep properties of concrete specimens were determined by loading them by 20% of their ultimate stress. The specific creep of the geopolymer concrete was in the same range as that of the ordinary Portland cement — 0.00065 1/MPa. New information on the time-dependent elastic modulus of the concretes was also obtained. The elastic modulus of the plain geopolymer concrete reached, on the average, 32.03 GPa on day 30, 36.29 GPa on day 62, and 45.73 GPa on day 158, but that of the carbon-fiber-reinforced one — 30.12 GPa on day 30, 37.79 GPa on day 62, and 53.35 GPa on day 158 after the production of their specimens.

中文翻译：

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碳纤维增强碱活化水泥复合材料的长期变形性能

本研究的目的是通过实验确定普通地质聚合物和碳纤维增强地质聚合物混凝土的蠕变和收缩性能。混凝土试样的蠕变特性是通过将它们加载到其极限应力的 20% 来确定的。地聚合物混凝土的比蠕变与普通硅酸盐水泥在相同的范围内——0.00065 1/MPa。还获得了关于混凝土随时间变化的弹性模量的新信息。普通地聚物混凝土的弹性模量在第 30 天平均达到 32.03 GPa，在第 62 天达到 36.29 GPa，在第 158 天达到 45.73 GPa，而碳纤维增强混凝土的弹性模量在第 30 天达到 30.12 GPa，样品生产后第 62 天为 37.79 GPa，第 158 天为 53.35 GPa。