SISAL

About: SISAL is a research topic. Over the lifetime, 1878 publications have been published within this topic receiving 55528 citations.

Effect of Surface Treatment on Natural Aging and Mechanical Behavior of Sisal Fiber–Reinforced Sand Composite

Abstract: Although vegetable fibers demonstrate great advantages as a reinforcement element, their degradation susceptibility is currently the main concern in geotechnical works and requires further investigation to advance their durability. In recognition of these needs, this study aims to evaluate the effects of silica and polymer surface treatments on sisal fiber biodegradability and on the mechanical behavior of sand matrix reinforced with these fibers exposed to actual environmental conditions for up to eight months. Fourier transform infrared spectroscopy (FTIR), X-ray fluorescence spectrometry (FRX), scanning electron microscopy (SEM), direct tensile and consolidated-drained triaxial tests were performed. Overall, the secondary cell wall of the fiber was the main structure affected by the exposure, reflecting the degradation by natural soil microflora. The strain-hardening behavior acquired by the addition of fiber to the sand at zero time was gradually reduced with natural aging. Increments in cohesive intercept of the composite over the biodegradation of fibers point to biofilm formation. Due to the inorganic base, silica treatment resulted in the most effective barrier against fiber biodegradation, contributing to composite durability along the eight months. Notwithstanding the degradation process, both natural and surface-treated sisal fibers resulted in shear strength parameters superior to those of the nonreinforced soil, encouraging their sustainable applications in engineering works, such as temporary landfills.

From a formal dynamic semantics of Sisal to a Sisal environment

Abstract: We present a formal definition of the dynamic semantics of a significant part of the language Sisal 2.0 in the structural operational style of Natural Semantics, namely Typoi inference rules, within the Centaur system, a generic specification environment. Sisal (Streams and Iteration in a Single Assignment Language) is a strongly typed, applicative, single assignment language in use on a variety of parallel processors, including conventional multiprocessors, vector machines and dataflow machines. >

Mechanical Property Analysis on Sandwich Structured Hybrid Composite Made from Natural Fibre, Glass Fibre and Ceramic Fibre Wool Reinforced with Epoxy Resin

Abstract: Natural fibre composites find wide range of applications and usage in the automobile and manufacturing industries. They find lack in desired properties, which are required for present applications. In current scenario, many developments in composite materials involve the synthesis of Hybrid composite materials to overcome some of the lacking properties. In this present investigation, two sandwich structured hybrid composite materials have been made by reinforcing Aloe Vera-Ceramic Fibre Wool-Glass fibre with Epoxy resin matrix and Sisal fibre-Ceramic Fibre Wool-Glass fibre with Epoxy resin matrix and its mechanical properties such as Tensile, Flexural and Impact are tested and analyzed. The test results from the two samples are compared and the results show that sisal fibre reinforced hybrid composite has better mechanical properties than aloe vera reinforced hybrid composite.