Fiber Reinforced Concrete and Its Application Essay

The basic principle to remember is that concrete is a sloppy God-awful mess when we first look at it but then we turn it into something wonderful. We take the sloppy mud like concoction and

What is concrete. According to Concrete Network (1999) “Concrete is made up of three basic components: water, aggregate (rock, sand, or gravel) and cement. Cement, usually in powder form, acts as a binding agent when mixed with water and aggregates. This combination, or concrete mix, will be poured and harden into the durable material with which we are all familiar”. The Roman's did it a little

Concrete is a tough and reliable material, and it can be used for a wide range of projects. Eventually though, a structure made from this versatile material will need to be replaced. At the very least, it may require repairs.

In order to discuss concrete; one must first mention cement. Cement is a water-based binder used to bind other building materials together. It is used in the production of mortar and concrete during the construction process. Concrete is a material used in construction, made by mixing aggregate, cement, small stones and water. Cement is important because it hold structures together. Many sources states concrete was invented 1756 by a British Engineer named John Smeaton. He did so by mixing pebbles as a coarse aggregate into a powdered brick into the cement. Years layer in 1824, a English inventor named Mr Joseph Aspdin created the first true artificial cement by burning ground limestone and clay together. He is also noted for creating today’s popular concrete; Portland cement. Many buildings use concrete because of its strong element. It solidifies then hardens after mixing with water and placement due to the chemical process known as hydration. Water reacts with the cement, which bonds the other components together, eventually creating a stone-like material. Concrete is used to make pavements, pipe, various structures, foundations, roads, bridges, brick walls and so on. It is either produced site-cast or pre-cast. Site-cast Concrete is standard concrete that is poured into site-specific forms and cured on site; the concrete is created on the actually construction site. Precast concrete is a construction

Roman concrete, called opus caementicium [o-pus see-men-tic’-ee-um], was made with a special Roman mortar or cement, called caementa [see-ment’-a], created by mixing water, lime, and a special volcanic ash sand, called pozzolana, that gave Roman caementa its special strength. Roman concrete [opus caementicium] was created by first building a form and then pouring in alternating layers of the Roman caementa and layers of rocks, bricks, or gravels. As each layer of rocks, bricks, or gravels was poured in and spread around, Roman workers would then pound the layers firmly together with a tool called a tamp. Roman cement was special not only because it was strong but because it was also hydraulic—it would set up and harden even under water, which made it handy for building things like Roman sewers, cisterns, baths, and even

Steel-reinforced concrete is a widely used structural material. The effectiveness of the steel reinforcement depends on the bond between the steel reinforcing bar and the concrete. Reinforced concrete is a composite material in which concrete 's relatively low tensile strength and ductility are counteracted by the inclusion of reinforcement having higher tensile strength and ductility. The reinforcement is usually, though not necessarily, steel reinforcing bars and is usually embedded passively in the concrete before it sets. Reinforcing schemes are generally designed to resist tensile stresses in particular regions of the concrete that might cause unacceptable cracking and

On comparing to a reinforced concrete component, an element made of high strength concrete will have minor deflection, slighter camber change, lower pre-stress loss and longer life relatively. Additionally, it gives heightened shear capacity of columns and stronger beam-column joints. The other characteristics of high strength concrete are higher compressive strength, better tensile strength and improved

The aim of this experiment was to understand the properties of fresh and cured concrete, looking at the relationship between workability and compressive strength.

Abstract. Considerable network of transportation infrastructures such as highways, rails, and so forth are key providers to economic growth and productivity of countries. Consecutively, Reinforced Concrete (RC) is the predominant construction materials in constructing many of these infrastructures. RC is a unique construction material which allows flexible design layouts and offers safe bending and torsion to satisfy design requirements. However, being exposed to harsh environment and contamination such as salts, acid rain, distilled water, carbonation, sulphur and so on are the reasons for deterioration, thus significantly impacting the performance of these structures. Furthermore, the deterioration of these structures is not only a

Reinforced concrete is a common building material for the construction of facilities and structures.  While concrete has a high compressive strength, it has a very limited tensile

In the present paper, the addition of fly ash and an expansive agent to the concrete of or a thin layer of fly ash to the interface between steel tube and concrete to improve the compressive strength. More over This paper

Concrete is a significant structural material used all around the world. Moreover, the complexity of structures and their magnitude have continued to increase, and this has resulted in a greater importance of their strength and distortion characteristics in more serious consequences of their behaviour. Engineers have been working on the development of innovative types of concrete. One of the most promising products is fiber-reinforced concrete (FRC). Fibers in concrete provide better-quality mechanical and physical properties of the material. For example, the obtained fiber-reinforced concrete has higher resistance to cracking. In this paper we will be discussing fiber reinforced concrete as an alternative to the conventional concrete.

Introduction: It is widely known that many older reinforced concrete columns may suffer from an inadequate amount of transverse steel reinforcement providing insignificant confining pressure to the concrete core. The seismic performance of these columns may thus be very poor due to their insufficient ductility or low concrete strength. Because the FRP composites owe some of the favorable properties such as high strength-to-weight ratio, the use of FRP composites is nowadays become more common in the construction industry as a confining material for concrete to enhance the strength and ductility capacities of existing RC columns. To achieve a proper and safe design of FRP-confined rectangular RC columns, it is necessary to properly understand and model the axial stress-strain behavior of FRP-confined concrete. The axial cyclic stress-strain behavior of FRP-confined concrete is of particular importance in the seismic design of existing RC columns.

In the discussion of high performance concrete role played by FRC is vital. FRC is defined as a composite material which consists of conventional concrete reinforced by randomly dispersed short length fibres of specific geometry, made up of steel, synthetic material or natural fibres. The fibres are distributed evenly throughout the mix without balling or clustering. The randomly oriented fibres help to bridge and arrest the cracks. As such, crack widening is gradual as compared to plain concrete. This leads to better

The research seeks to compare the difference in measurement of flexural strength of palm kernel shell (PKS) concrete, using direct and indirect methods (beam and splitting cylinder specimen).The Palm kernel shell (PKS) was subjected to various physical tests and values obtained are as follows; specific gravity of Palm kernel shell (PKS) 1.3, Aggregate impact value 10.23.The Concrete was cast using two mix ratios 1:1.5:3 and 1:2:4. The concrete cubes, cylinders, and beams were crushed at 7, 14 and 28days in other to determine the compressive strength and flexural strength of the concrete for the various mixed. The 28th day compressive strength was 12.30N/mm2 and 20N/mm2, for the two mixed ratio respectively. The 28th day flexural strength was 2.03N/mm2 and 1.10N/mm2 for the beam and cylinder specimen respectively. The student t-test showed that there is no significant difference between the tensile strength measured using direct and indirect