Tailoring the Mechanical Properties of Jute Woven/Cement Composite for Innovation in the Architectural Constructions

ABSTRACT

In this paper, the experimental work provided the testing of Jute-cement composites containing several modified Jute fabrics that were prepared to be used in the intensification of the cracking strength and toughness of cracked concrete, fiber/cement sheets or architectural constructions through the improvement of the mechanical properties of the fiber-cement preform. As the chemical modification, the Jute fabrics were treated with sodium hydroxide (NaOH) solution in the relaxed form at the ambient temperature maintaining the fabric to liquor ratio 1:30. The fabrics were kept in the various sodium hydroxide concentration solutions (8%, 16%, and 22%) for 1, 30 or 60 min. The treatment of the Jute fabrics resulted in an increase in the weft and warp crimp, the work of rupture, fabric strength, and breaking elongation. The pronounced effect of fabric treatment is the work of rupture and fabric elongation that increased by 7.89 and 14 times, respectively, thus increasing the toughness of the fabric, while Young’s modulus was reduced by 10 times, keeping the tenacity almost constant. This technique will prevent delamination phenomena of the Jute fabric preforms and improve the bending stress of the Jute/cement composite.

摘要

本文介绍了用几种改性黄麻织物制备的黄麻水泥复合材料，通过改善混凝土、纤维/水泥板和建筑结构的力学性能，提高其抗裂强度和韧性的试验研究纤维水泥预制件作为化学改性，黄麻织物在环境温度下以氢氧化钠（NaOH）溶液进行松弛处理，保持织物的比为1:30. 织物被保留在各种氢氧化钠浓度溶液（8%、16%和22%）中1, 30或60分钟. 黄麻织物的处理导致纬纱和经纱卷曲、断裂功、织物强度和断裂伸长率的增加. 织物处理的显著效果是断裂功和织物伸长率分别提高了7.89倍和14倍，从而提高了织物的韧性，而杨氏模量则降低了10倍，使织物的韧性几乎保持不变该工艺可防止黄麻织物预制件的分层现象，提高黄麻/水泥复合材料的弯曲应力.

KEYWORDS:

• Bending stiffness
• Jute fiber
• alkali-treatments
• fabric/cement composite

关键词:

• 弯曲刚度
• 黄麻纤维
• 碱处理
• 织物/水泥复合材料