A Comparative Study of the Mechanical Properties of Jute Fiber and Yarn Reinforced Concrete Composites

ABSTRACT

A relatively better performance of jute fiber and yarn reinforced concrete composites can open up a wide access to application of natural resources in concrete strengthening. In order to achieve this goal, an experimental investigation on the flexural, compressive and tensile strengths of Jute Fiber Reinforced Concrete Composites (JFRCC) and Jute Yarn Reinforced Concrete Composites (JYRCC) has been conducted. To draw a specific conclusion, the mix ratios of 1:1.5:3 and 1:2:4 (by volume) of concrete have been maintained with incorporation of jute fiber and yarn in concrete mortar having different cut lengths with distinct volumetric ratios. Finally, a comparison of the JFRCC and JYRCC strength increments with respect to the plain concrete has been investigated. A significant increment of compressive, flexural and tensile strength was observed only for a short cut length having a low volumetric ratio, where JYRCC increment value was always found progressive. A far more regular arrangement and adequate mixture of JYRCC was also visualized compare to JFRCC in concrete mortar. All the principal increment values were found only in case of JYRCC with a mix ratio of 1:1.5:3. So, it can be concluded that the presence of jute yarn and more cement content can strengthen the concrete to a great extent.

摘要

黄麻纤维和纱线增强混凝土复合材料的性能相对较好，为自然资源在混凝土加固中的应用开辟了广阔的途径。为了达到这一目的，对黄麻纤维增强混凝土复合材料（JFRCC）和黄麻纱钢筋混凝土复合材料（JYRCC）的弯曲、压缩和拉伸强度进行了试验研究。为了得出特别的结论，在具有不同切割长度的混凝土砂浆中掺入黄麻纤维和纱线，混凝土体积比保持在1:1.5:3和1:2:4。最后，对JFRCC和JYRCC强度增量与普通混凝土的比较进行了研究。仅在保持低体积比的短切长度时，观察到压缩、弯曲和拉伸强度的显著增加，其中JYRCC增量值总是渐进的。与JJRCC相比，JYRCC在混凝土砂浆中的布置更为合理，也更为充分。所有主要增量值仅在JYRCC的情况下发现，混合比为1:1.5∶3。由此可见，黄麻纱线的存在和水泥含量的增加在很大程度上可以增强混凝土的强度。

KEYWORDS:

• Composites
• reinforcement
• jute
• fiber
• yarn
• strength; etc

关键词:

• 复合材料
• 加固
• 黄麻
• 纤维
• 纱线
• 强度等。