In concrete dams, cracks are formed mainly due to shrinkage of concrete due to temperature variations. These cracks may develop internally in the body of the dam or externally on the surface of the dam. Surface cracks are more dangerous ...
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Materials for Repair of Concrete Structures – Types and Selection Criteria
There are various types of materials which are used for the repair of concrete structures. For instance, unmodified Portland cement mortar or grout, latex modified Portland cement mortar or concrete, quick setting non-shrink mortar, and polymer concrete. The choice of ...
Welded Wire Fabric Concrete
Welded wire fabric is a series of parallel longitudinal wires welded to cross wires by electric fusion method with accurate spacing. The welding work is done by machinery which ensures the precise dimensions and results in considerable savings in time, ...
How to Repair Active Cracks in Concrete?
Active cracks in concrete are live cracks which expand in length, width, and depth over time. These cracks are formed due to overloading and thermal expansion e.g. cracks due to freeze-thaw. Common methods to repair active cracks are drilling and ...
Polymer Modified Mortar – Types, Properties, and Applications
Polymer modified mortar is produced by mixing water with polymeric admixtures, Portland cement, and sand. The addition of polymer improves mortar’s performance and consequently can be utilized advantageously and economically in several applications. Latex polymers, redispersible dry polymers, water-soluble polymers ...
How to Cut Control Joints in Concrete Slab?
Control joints are provided in a concrete slab to reduce cracks formed due to shrinkage. The specifications of the control joints such as the depth, timing and place of the cut play an important role in the efficiency of the ...
How to Repair Stamped Concrete?
Stamped concrete is an innovative concrete widely applied for the floor in patios, car porch, driveways and sidewalks. It is extremely docile in nature and can be finished to resemble brick, slate, flagstone, tile, stone, wood and various other patterns ...
Hairline Crack in Concrete – Causes, Repair and Prevention
Hairline cracks are commonly observed in freshly placed concrete and their occurrence is owed to the phenomenon of plastic shrinkage. As the name implies, these cracks are very small- about 0.003 inches (0.08mm) in width and can be very shallow. ...