The drawbacks are that the concrete has been improved by using hybrid fibre in concrete. By hybridization benefits from two different fibres utilized a single mixture. hybrids studied basalt-polypropylene fibre, polypropylene-steel steel-coconut polypropylene-e-waste polypropylene-polyvinyl Alcohol and steel-glass- polypropylene fibre. properties compressive strength, tensile flexural limited c...

Reliable bond of steel fiber in concrete is a key problem relating to the reinforcing effect on matrix and for guide significance optimal design geometry mechanical properties fiber. In this paper, basis multi-indices evaluation single hooked-end fiber, indices synergistic different deformed fibers are proposed. The pull-out tests were carried out embedded mortar wet-sieved from self-compacting...

In this research, the structural behavior of reinforced concrete brackets cast with containing different types fibers was studied. Seven samples corbels were and tested. One specimen without fiber as a reference, other made six at constant volume fraction (1% total volume). The used in research two materials: steel polyolefin. polyolefin fiber, five remaining samples, used. Straight, crimped, t...

Effect of cooking, fermentation, dehulling and the use of utensils on flavonoids (quercitin and pelargonidin) - antioxidants present in pearl millet (Pennisetum typhoideum) rabadi, along with proximate composition and sensory acceptability of the product were studied. Study revealed an increased ash and flavonoids and reduced crude fibre after cooking in all samples, while fermentation enhanced...

The technique of strengthening steel structures with Carbon Fibre Reinforced Polymer (CFRP) has attracted growing attention in research field and in practice and its environmental durability is of high importance. This paper describes an investigation on the bond characteristics between high modulus CFRP sheet and steel plates under elevated temperature exposures. Tensile tests were carried out...

Uniaxial and triaxial compression tests on steel fibre reinforced shotcrete (SFRS) have been used to quantify the elastic–plastic response behaviour for both the peak and post-peak regions. The laboratory tests were conducted with a servo-controlled testing machine to obtain complete stress–strain curves. The test results include unconfined and triaxial compressive strengths, shear strengths an...

The aim of the present study is to investigate the effect of variation of polypropylene fibres ranging from 0.1% to 0.4% along with 0.8% steel fibres on the behaviour of fibrous concrete. The mechanical properties of the concrete such as compressive and tensile strength have been investigated. The result shows that addition of polypropylene fibre has a little effect on the compressive strength,...

This study presents a study on the ductility performance of hybrid fibre reinforced concrete. The influence of fibre content on the ductility performance of hybrid fibre reinforced concrete specimens having different fibre volume fractions was investigated. The parameters of investigation included modulus of rupture, ultimate load, service load, ultimate and service load deflection, crack width...

This paper addresses the static properties and impact resistance of a ‘‘green’’ Ultra-High Performance Hybrid Fibre Reinforced Concrete (UHPHFRC). The design of concrete mixtures aims to achieve a densely compacted cementitious matrix, employing the modified Andreasen & Andersen particle packing model. The flowability, static mechanical properties and impact resistance capacity of UHPHFRC are m...

In recent decades, the application of fibre-reinforced polymer (FRP) composites for strengthening structural elements has become an efficient option to meet the increased cyclic loads or repair due to corrosion or fatigue cracking. Hence, the objective of this study is to explore the existing FRP reinforcing techniques to care for fatigue damaged structural steel elements. This study covers the...