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The Influence of Different Wood Aggregates on the Properties of Geopolymer Composites

机译：不同木聚集对地质聚合物复合材料性能的影响

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This paper aims to study the effect of different types of wood aggregates on properties of geopolymer composites. Class F fly ash with 30% substitution of metakaolin was used as an alumino-silicates source for the production of geopolymer composites. Wood particles, wood flour, and wood fiber were added to fly ash and metakaolin-based geopolymers at 10% solid content as reinforced materials. 14M NaOH in combination with Na_2SiO_3 was used as the alkaline activator with a liquid-to-solid ratio of 1.33:2.00. The specimen without wood aggregates was also prepared as a reference for comparison with specimens containing wood aggregates. All specimens were cured at 20°C for 28 days until the day of characterization. It was observed that the incorporation of different types of wood aggregates has influenced their properties. The highest compressive strength of about 38.4 MPa was achieved for the sample containing wood flour. Besides, the density and water absorption of geopolymer composites reacted differently by using different types of wood aggregates. It is demonstrated that size and shape of wood aggregates influence the properties of geopolymer composites.
机译：本文旨在研究不同类型木质聚集对地质聚合物复合材料性能的影响。 F类F粉煤灰具有30％替代Metakaolin的铝硅酸盐源，用于生产地缘聚合物复合材料。加入木颗粒，木粉和木纤维以将基于灰分和甲状腺素的基质聚合物加入到10％固体含量中作为增强材料。将14M NaOH与Na_2SiO_3组合用作含有1.33：2.00的液态比例的碱性活化剂。没有木聚集体的样品也是作为参考的参考，用于与含木聚集体的样本进行比较。将所有标本在20℃下固化28天，直至表征日。观察到不同类型的木聚集体的掺入影响了它们的性质。对于含木粉的样品，实现了约38.4MPa的最高抗压强度。此外，通过使用不同类型的木聚集体，地质复合材料的密度和吸水性不同地反应。结果表明，木聚集体的尺寸和形状会影响地质聚合物复合材料的性质。

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