this work has setup to determine the effects of a solvent on the structure and properties of polypropylene fibres with different physical structures. samples of continuous filament yarns with different physical structures (partially oriented (poy) and drawn yarns) are treated with decahydronaphthalene (decalin) at 28, 55, 75 and 95oc. at 95oc, the samples are dissolved completely in decalin and...

This study assesses the ballistic impact strength of thin plates made ultra-high-performance concrete (UHPC) with low cement content (250 kg/m3) and volumes 80% steel 20% polypropylene (PP) hybrid fibers. The were prepared thicknesses 30, 50, 70 mm fiber volume ratios 1.5% 3.0%. Compressive strength, flexural tensile residual determined using experimental methods. Test results showed that regar...

This paper focuses on the experimental investigation designed to study behavior of hybrid fiber-reinforced concrete (HFRC) beams under flexure and impact loading. The addition fibers can improve a number its properties. For optimal response, different types may be suitably combined produce HFRC. Optimized combinations fiber in composite with better engineering properties than that only one type...

in this study the performance of clay nano-particles on the soil reinforced with polypropylene fibers (pp-fiber) has been investigated. also a series of investigations concerning the effect of random orientation of fibers on the engineering behaviour of soil were conducted. soil mixtures were modified with varying percentages of nanoclay and fibers. unconfined compressive strength (ucs), compac...

New methods are being developed to enable the production of value-added materials from high-volume, low-cost feedstocks arising from domestic recycling streams. In this work, recycled bottle-grade polyethylene terephthalate, polystyrene, and polypropylene were spun into fibers from the melt using a centrifugal spinning technique. Mono-component fibers and 50/50 blends of each polymer and a 33/3...

In this study the performance of clay nano-particles on the soil reinforced with Polypropylene fibers (PP-fiber) has been investigated. Also a series of investigations concerning the effect of random orientation of fibers on the engineering behaviour of soil were conducted. Soil mixtures were modified with varying percentages of nanoclay and Fibers. Unconfined compressive strength (UCS), Compac...

in this study, the effect of chemical modification of wood flour on the mechanical properties of polypropylene based composites was investigated using by dynamic mechanic thermal analysis. to meet this objective, the wood flour treated with chemical components including alkaline, acetic acid and benzoyl chloride, and then the chemically treated fibers were compounded with polypropylene at 180 °...

This study assessed the capacity of adhesion, the detachment kinetic and the biofilm formation by Staphylococcus aureus isolated from food services on stainless steel and polypropylene surfaces (2 × 2 cm) when cultivated in a meat-based broth at 28 and 7 °C. It was also to study the efficacy of the sanitizers sodium hypochlorite (250 mg/L) and peracetic acid (30 mg/L) in inactivating the bacter...

The orientation of steel fibers in magnetically driven concrete and magnetically driven mortar was experimentally studied in this paper using a magnetic method. In the magnetically driven concrete, a steel slag was used to replace the coarse aggregate. In the magnetically driven mortar, steel slag and iron sand were used to replace the fine aggregate. A device was established to provide the mag...

Abstract The distinct fiber addition to concrete can improve weak performance in tension. Due its higher performance, hybridization is becoming more and competitive. In this study, the hardened durability characteristics of performance-based reinforced with polypropylene, basalt hooked end steel fibers are investigated. Total 12 mixes prepared evaluate different concrete. influence (0.2, 0.25, ...