SISAL

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

Experimental Analysis over Natural Fibre (Sisal) Reinforced Composite, With Microwave and Compression Moulding

Abstract: The research deals with reinforcement of polypropylene with sisal short fibres. The composites were processed with microwave moulding and compression moulding. The parameters considered were varying amount of fibre percentage for either technique. In microwave moulding, power output parameter was also entertained specifically, justifying mechanical properties at different levels of power. Composites once ready, by both manufacturing technique were introduced with tensile and compressive strength testing. Though the compression moulding won the case of enhancing mechanical properties, but time of manufacturing in microwave was much less than conventional. Optical microscope test was conducted to paper to have better look around of failures. The respective comparison, theory, and conclusion is discussed in the thesis.

Evaluation of Geotechnical Properties of Black Cotton Soil Reinforced with Sisal Fibre for Waste Containment Application

Abstract: Compacted Black Cotton Soils (BCS) used in geotechnical constructions such as dams and clayey liners in waste containment facilities can suffer from cracking due to swelling and shrinking during wet and dry seasons respectively. In order to reduce the shrinkage of the clayey soil, discrete fibre reinforcement such as the Sisal Fibre (SF) technique was used. An experimental study was carried out on the natural and the modified properties of the soil which include Atterberg limits, compaction, Unconfined compressive strength UCS (i.e., for varying Moulding Water Content (MWC) relative to Optimum Moisture Content (OMC); OMC-2, OMC, OMC+2, OMC+4) and Volumetric Shrinkage Strain (VSS) at MWC relative to OMC; (OMC-2, OMC, OMC+2, OMC+4) were determined, for different percentages inclusion of sisal fibre (0, 0.5, 1, 1.5 and 2% SF). Results obtained show that the liquid limit and plasticity index of the natural soil are 44.47% and 18.65% which increased with an increase in the sisal fibre content. OMC increased from a value of 19% for the natural soil to a peak value of 24.5% at 1.5% of sisal fibre and thereafter decreased. The natural soil has a Maximum Dry Density (MDD) of 1.55 Mg/m3 which decreased to 1.5 Mg/m3 at 1.5% additive. The VSS of the modified soil significantly decrease compared to the natural soil and it continually decreased as the percentage of sisal fibre increased. The lowest VSS values were observed at 2% SF, having values of 2.85, 3.5, 4.75, and 5.5% for OMC-2, OMC, OMC+2, and OMC+4, respectively. The UCS initially increased and thereafter decreased. Based on the results, soil optimally treated with a maximum of 0.5% sisal fibre and compacted with OMC-2 significantly improved the soil and is recommended for use in waste containment applications.

Evaluation of strength characteristics of fibre reinforced concrete: A case study of glass and sisal fibres

Abstract: The strong performance of fibre reinforced concrete with the stepped introduction of glass and sisal fibre was evaluated. In this study, fibres as light reinforcements with varying percentages of 0, 0.25, 0.50, 0.75, 1.00, 1.25 and 1.5 by weight of concrete were added to M15 grade concrete. The water/cement mix proportions ratio was 0.6. Control specimens, such as cubes were cast and tested at 7, 14, 21 and 28 days respectively to determine the mechanical properties. Glass fibre resulted in the most workable mix as compared to the sisal fibre with the highest slump and compaction factor of 19.50 mm and 0.93 respectively on the addition of 0.25% fibre. The addition of glass and sisal fibres in plain concrete (control) up to 1% increases the strength of concrete while the addition of fibres content greater than 1% resulted in a reduction in the strength of concrete. The optimum glass and sisal fibre content was 1% with maximum compressive strength of 36.50 N/mm2 and 34.67 N/mm2 at 28 days respectively. The experimental study revealed that glass fibre was stronger than sisal fibre. Hence, the fibre content of 1% is recommended for use as light reinforcement in concrete.

Steel wire rope for high-rise high-speed elevator

Abstract: The utility model relates to a steel wire rope for a high-rise high-speed elevator. The steel wire rope is characterized by comprising a sisal core, inner layer strands and outer layer strands, wherein the eight inner layer strands are twisted and wrapped outside the sisal core, and the eight outer layer strands are twisted and wrapped outside the inner layer strands; and the sisal core is formed in one step by stranding and twisting sisal threads. According to the utility model, the sisal core is formed in one step by stranding and twisting sisal threads, and then the two layers of steel wire rope strands are twisted and wrapped outside the sisal core to form the steel wire rope, so that the diameter evenness is good, the strength grade and the carrying capacity are improved, and the fatigue life and the service life are prolonged. Therefore, the steel wire rope provided by the utility model is suitable for the high-rise high-speed elevator.