The geopolymer foam wood composites (GFWC), which are prepared from fly ash and wood flour, have high compressive strength and capacity for humidity control for potential applications in the construction industry. The compressive strength, apparent density and porosity of the composite were discussed by the relationship of properties and structure. The ability of the moisture absorption and desorption of the different composites were compared under different humidities at room temperature. The results showed that when the moisture content of wood flour is 15 %, the GFWC2# has a compressive strength of 15.8 MPa and the equilibrium moisture content is 15.0 % at 97 %RH. With better miscibility between the two constituents at 15 % moisture content, the interfacial bonding between the wood cell wall and geopolymer enhances the compressive strength of GFWC2#. Its comprehensive properties have broad application prospects in the field of construction.

中文翻译：

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湿度控制及对粉煤灰和木粉地聚物泡沫复合材料力学和结构性能的影响研究

由粉煤灰和木粉制备的地质聚合物泡沫木质复合材料（GFWC）具有高抗压强度和湿度控制能力，在建筑行业具有潜在的应用前景。通过性能与结构的关系讨论了复合材料的抗压强度、表观密度和孔隙率。比较了不同复合材料在室温下不同湿度下的吸放湿能力。结果表明，当木粉含水率为15%时，GFWC2#的抗压强度为15.8 MPa，97%RH时平衡含水率为15.0%。在含水量为 15% 时，两种成分之间具有更好的混溶性，木材细胞壁和地质聚合物之间的界面结合提高了 GFWC2# 的抗压强度。其综合性能在建筑领域具有广阔的应用前景。