The aim of this paper is to evaluate the influence of sustainable surface treatments —performed on flax nonwoven fabrics as textile reinforcement— on the durability of calcium aluminate cement (CAC) based composites. Two treatments are considered: an alkaline treatment (for increased stability and adhesion), and a treatment with soybean oil (for a higher hydrophobia to reduce fiber degradation). The cement hydration was studied by analysis of back-scattered scanning electron microscopy images, which revealed variations nearby the fibers owing their capacity for water absorption and oil's presence on the surface. A retarding effect on cement hydration was observed on the composites prepared with the oil-treated fabrics. Better overall mechanical properties were found in the samples containing the alkali treated fabric, which also presented the highest durability. For these composites it was found an optimized fiber-matrix adhesion and penetrability of the cement to the fabric.

本文的目的是评估可持续表面处理（对亚麻无纺布进行纺织增强）的效果对铝酸钙水泥（CAC）复合材料耐久性的影响。考虑了两种处理：碱性处理（以提高稳定性和附着力）和大豆油处理（以更高的疏水性以减少纤维降解）。通过分析反向散射的扫描电子显微镜图像研究了水泥的水合作用，该分析揭示了由于纤维的吸水能力和表面油的存在，纤维附近的变化。在用油处理的织物制备的复合物中观察到对水泥水合作用的阻滞作用。在包含碱处理过的织物的样品中发现了更好的总体机械性能，也具有最高的耐用性。对于这些复合材料，发现了水泥对织物的最佳纤维基质粘合性和渗透性。