Discy Latest Articles

Efflorescence on Concrete – Causes, Prevention and Removal

Efflorescence on Concrete – Causes, Prevention and Removal

Efflorescence in concrete is a whitish coloured powdered deposition of salts on the concrete surface that is formed due to evaporation of water from the concrete. It is caused when water soluble salts are present in the concrete material, which ...

Topping Concrete – Work Procedure, Types and Advantages

Topping Concrete – Work Procedure, Types and Advantages

Topping concrete is defined as a layer of high strength concrete placed on an old, worn out concrete surface to provide a dense, abrasion-resistant surface, to increase structural depth and strength of the base concrete. In this article we study about ...

Concrete Repair by Dry Pack Mortar Method

Concrete Repair by Dry Pack Mortar Method

Dry pack mortar is used to repair the concrete surfaces which contains cracks or holes of depth larger than or equal to the least dimension of the repair area. The holes generally found on concrete surfaces are cone bolt holes, ...

Difference between Control Joint and Expansion Joint?

Difference between Control Joint and Expansion Joint?

Control Joint in Concrete Control joints in concrete are provided at regular interval to from a weak plane, so that cracks are formed at the joints but not in undesired places. Control joints are provided in concrete pavements, slabs, walls, floors, dams, ...

Expansion Joint in Concrete – Types and Characteristics

Expansion Joint in Concrete – Types and Characteristics

Expansion joints are placed in concrete to prevent expansive cracks formed due to temperature change. Concrete undergoes expansion due to high temperature when in a confined boundary which leads to cracks. Expansion joints are provided in slabs, pavements, buildings, bridges, sidewalks, railway tracks, piping ...

Low Heat Cement- Composition, Properties, Uses and Advantages

Low Heat Cement- Composition, Properties, Uses and Advantages

Low heat cement is a special tailored cement which generates low heat of hydration during setting. It is manufactured by modifying the chemical composition of normal Portland cement. In this article we discuss about the composition, properties, characteristics, uses and advantages ...