FIBRE REINFORCED CONCRETE IN PAVEMENTS

Fibre reinforced concrete (FRC) is defined as a composite material consisting of concrete reinforced with discrete randomly but uniformly dispersed short length fibres. The fibres can be made of steel, polymer or natural materials. Woven fabrics, long wires, bars, and continuous wire mesh are not considered discrete fibres. FRC is considered as a material of(…)

APPLICATIONS OF STEEL FIBER REINFORCED CONCRETE

APPLICATION OF STEEL FIBER REINFORCED CONCRETE STEEL FIBER FOR PRE-CAST CONCRETE APPLICATION: Manholes, Risers, Burial Vaults, Septic Tanks, Curbs, Pipes, Covers, Sleepers APPLICATIONS IN OTHER STRUCTURES: A) Highway And Airfield Pavements: Repair of existing pavement. Reduction in pavement thickness. Increase in resistance to impact. Increase in transverse and longitudinal joint spacing Smooth riding surface. B)(…)

BENEFITS OF USING STEEL FIBRES IN CONCRETE

The use of steel fibre in concrete can improve its many properties. The benefits of using steel fibres in concrete are as follows: 1. Steel Fibres are generally distributed throughout a given cross section whereas reinforcing bars or wires are placed only where required 2. Steel fibres are relatively short and closely spaced as compared(…)

Fibre Reinforced Concrete

Fiber Reinforced Concrete can be defined as a composite material consisting of mixtures of cement, mortar or concrete and discontinuous, discrete, uniformly dispersed suitable fibers. Continuous meshes, woven fabrics and long wires or rods are not considered to be discrete fibers. Fiber is a small piece of reinforcing material possessing certain characteristics properties. They can(…)

PROPERTIES OF POLYMER MATERIALS

PROPERTIES OF POLYMER MATERIALS The civil engineer is chiefly concerned with mechanical properties and with the physiochemical which determine durability. The thermal properties and permeability are also briefly discussed here. Density of Polymer Materials Polymers are materials composed of mainly light elements, relatively packed at the molecular level, consequently solid polymers have low densities. The(…)

GLASS FIBRE REINFORCED CONCRETE

GLASS FIBRE REINFORCED CONCRETE Glass fibres are used to reinforce cement and concrete. Glass fibre reinforced concrete (GFRC) comprises hydration products of cement, or cement plus sand, and the glass fibres. Glass fibres were first used to reinforce cement and concrete in Russia. However they were corroded by the highly alkaline Portland cement matrix. Therefore,(…)

STEEL FIBRE REINFORCED CONCRETE

STEEL FIBRE REINFORCED CONCRETE (SFRC) Steel fibre reinforced concrete is a composite material having fibres as the additional ingredients, dispersed uniformly at random in small percentages, i.e. between 0.3% and 2.5% by volume in plain concrete. SFRC products are manufactured by adding steel fibres to the ingredients of concrete in the mixer and by transferring(…)

SULPHUR IMPREGNATED CONCRETE

SULPHUR IMPREGNATED CONCRETE Sulphur, sand and coarse aggregate are the ingredients of this concrete. Molten sulphur is added to the preheated aggregates in a mixture. The hot mix is immediately transferred into the moulds to fill them completely. The products manufactured with sulphur concrete need no curing and the moulds can be stripped immediately as(…)