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 ...

Concrete Laitance- Causes, Removal, vs Efflorescence

Concrete Laitance- Causes, Removal, vs Efflorescence

Concrete laitance is a layer of weak and nondurable cement and fine particles originated from aggregate. These materials are moved upward due to movement of moisture (bleeding) through concrete because of the presence of too much mixing water. The quantity of ...

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, ...

Defects in Concrete Structures – Types Causes, Prevention

Defects in Concrete Structures – Types Causes, Prevention

Different types of defects in concrete structures can be cracking, crazing, blistering, delamination, dusting, curling, efflorescence, scaling and spalling. These defects can be due to various reasons or causes. Causes for Defects in Concrete Structures Causes of defects in concrete structures can ...

What is Spalling Concrete? Their Causes and Repair

What is Spalling Concrete? Their Causes and Repair

Spalling is break away of concrete surface which often extends to the top layers of reinforcing steel. Spalls may be 150 mm or more in diameter and 25mm or more in depth, and the occurrence of smaller spalls also possible ...

Sandblasting Concrete Surface- Process and Advantages

Sandblasting Concrete Surface- Process and Advantages

Sandblasting is a method to texture the surface of hardened concrete on patio, walls, columns, driveways, floors to remove paint or expose aggregates. The extent of sand blasting ranges from light cleaning to a deep cutting operation that exposes aggregates ...