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Analysis of the Effectiveness of a Technological Solution to Simultaneously Mitigate Soil Degradation and Control the Infestation of Invasive Plants

Tsuchiya Lucas Hubacek, da Silva Alexandre Marco

Civil and Environmental Engineering Reports

2024

Vol. 34, no. 4

94--112

Geotextile-based products have been considered as an adequate alternative to mitigate soil degradation processes, either by erosion or invasion by weeds. Thus, we assessed the efficiency of a bag confectioned with jute fabric and filled with mowed grass. We constructed six experimental plots considering two experimental conditions – three with the control (uncovered) and three covered with the product we generated (jute bag). We conducted the study during a rainy period and analyzed the efficiency of the product using the indicators: soil-chemical balance (including organic matter), soil-water repellence (hydrophobicity), changes in the microtopography of the plots, and emergence and growth of plants. We identified that within the study period, the engineered product provided effective protection to the soil surface, mitigating erosion processes, as well as delaying the rise of weeds (21% reduction). The soil’s chemical and physical indicators evidenced that the soil was moderately improved. In this way, we argue that the product presents sufficient conditions to be an economically accessible alternative to control the soil degradation processes since it is simple and rapid to be manufactured and it uses materials that were initially considered waste, therefore being ecologically correct and interesting.

Comparative study on externally bonded heat‑treated jute and glass fiber reinforcement for repair of pre-cracked high performance concrete beams

Benaddache Lysa, Belkadi Ahmed Abderraouf, Kessal Oussama, Berkouche Amirouche, Noui Ammar, Aggoun Salima, Chiker Tarek, Tayebi Tahar

Archives of Civil and Mechanical Engineering

2024

Vol. 24, no. 2

art. no. e82, 2024

The adoption of natural fiber reinforced polymer (FRP) composites as an eco-friendly substitute for synthetic FRPs in structural strengthening applications is gaining substantial momentum. This study delves into the effectiveness of jute fabric reinforced epoxy composites in bolstering the flexural strength of impaired concrete beams. An array of variables, encompassing the number of fabric layers (ranging from 1 to 3), fiber heat treatment, externally bonded reinforcement (EBR) configuration (soffit vs. U-shape), and fiber type (jute vs. glass), underwent systematic scrutiny. The comprehensive analysis of 30 pre-cracked high-performance concrete beams yielded compelling findings. In particular, the application of heat-treated jute EBR, especially when employing two or three layers, resulted in significant increases in peak loads, translating to improvements ranging from 85 to 120% when compared to the control beam. This treatment significantly improves the bond between the fibers and the matrix, consequently enhancing the structural performance. Notably, jute composites can attain equivalent strengthening performance compared to glass FRP while offering substantial cost savings and significantly reducing carbon emissions, rendering them a more environmentally sustainable and economically viable choice.

Mechanical & Thermal Properties of Epoxy Based Hybrid Composites Reinforced with Jute / Sansevieria cylindrica Fibres

Kumar M. A., Reddy G. R.

International Letters of Chemistry, Physics and Astronomy

2014

Vol. 19, iss. 2

191--197

Tensile properties are studied to assess the influence of fiber weight. Room temperature cured epoxy was impregnated with jute/Sc in order to evaluate the performance of hybrid composites. Jute/Sc fibers are taken in the 1:1 weight ratios to suspend on epoxy resin with different fiber lengths such as 1, 2, 3 and 4 cm. The variations of aforementioned properties on hybrid composites with different fiber lengths have been studied. Significant improvement in tensile strengths of the jute/Sc hybrid composites has been observed by the alkali treatments. Thermal properties such as TGA and DSC are studied to investigate the influence of change in fibre length on treated and untreated hybrid composites in which 4 °C rise in decomposition temperature, 3 °C rise for glass transition temperature respectively.