High Performance Concrete & Self-Compacting Concrete

High Performance Concrete

High Performance Concrete Concrete may be regarded as high performance for several different reasons: high strength, high workability high durability perhaps also improved visual appearance. High strength concrete (HSC) might be regarded as concrete with a strength in excess of 60MPa and such concrete can be produced as relatively normal concrete with a higher cement … Read more

Repair of Concrete Complete Text

Repair of Concrete Repair of Concrete Introduction This guide first discusses Reclamation’s methodology for concrete repair. It then addresses the more common causes of damage to Reclamation concrete, including suggestions of the types of repair methods and materials most likely to be successful in repair of concrete damage resulting from those causes. Finally, the guide … Read more

Fibre Reinforced Concrete

Glass Fibres

Fibre Reinforced Concrete Need? PCC has low tensile strength, limited ductility and little resistance to cracking. PCC develops micro-cracks, even before loading. Addition of small, closely spaced and uniformly distributed fibres act as crack arresters. Fibre Reinforced Concrete is a composite material consisting of mixtures of cement, mortar or concrete and discontinuous, discrete, uniformly dispersed suitable … Read more

What is Ferro cement?

Ferro cement

What is Ferro cement? Definition “Ferro cement is a type of thin wall reinforced concrete, commonly constructed of hydraulic cement mortar, reinforced with closely spaced layers of continuous and relatively small size wire mesh. The mesh may be made of metallic or other suitable materials” -ACI Committee 549, 1980 Cement mortar is reinforced with layers … Read more

Fiber-Reinforced Concrete

Fiber Reinforced Concrete

Fiber-Reinforced Concrete Historical Development Fibers have been used to reinforce brittle materials from time immemorial, dating back to the Egyptian and Babylonian eras, if not earlier. Straws were used to reinforce sun-baked bricks and mud-hut walls, horse hair was used to reinforce plaster, and asbestos fibers have been used to reinforce Portland cement mortars. Research … Read more

Cement & Concrete Mix Design

Concrete Mix Design

Concrete Mix Design Concrete is a construction material composed of : Cement (commonly Portland cement) as well as other cementitious materials such as fly ash and slag cement. Aggregate (generally a coarse aggregate such as gravel, limestone, or granite, plus a fine aggregate such as sand). Water  and Chemical admixtures. The word concrete comes from … Read more

What is an Admixture | Functions of Admixtures

Chemical Admixtures In Concrete

What are Admixtures Admixtures are artificial or natural materials added to the concrete besides cement, water and aggregate to improve certain property of concrete during casting or setting or service stage. To improve the properties of the concrete required. It can be divided in 2 groups that is: Chemical Mineral   Functions of Admixture As … Read more