CAUSES OF DISINTEGRATION OF CONCRETE The primary reasons that cause disintegration of concrete member are desribed below. 1. SULPHATE ATTACK Soluble sulphates are present in Ground water Soil Clay bricks Soluble sulphates react with Tricalcium Aluminate of cement I n the presence of moisture and form products which occupy much bigger volume than that of … Read more
Telltale Signs for Choosing Right Concrete Cutting Contractor for Your Construction Project Most construction projects witness the need for concrete cutting and drilling for various purposes. And thus, it is essential for every size of a contractor, or a construction business, to have a good understanding of concrete cutting and how it can benefit your … Read more
Cracks in Hardened Concrete Cracking in concrete after setting occurs for a variety of reasons. The two most common forms of cracking in hardened concrete are crazing and drying shrinkage cracking. 1. Crazing This is best described as a network of very fine cobweb-like or alligator-skin cracks, which appear on the surface of concrete after … Read more
What is Efflorescence in Concrete? Efflorescence in concrete simply means appearance of white colored powdered material on the concrete surface. Efflorescence is the formation of salt deposits, usually white, on or near the surface of concrete after it has been finished and causing a change in the appearance. Light-coloured concrete shows the deposit much less … Read more
Concrete Repair Chemicals Chemicals that are used to repair damaged sections or members of any concrete structure is called concrete repair chemicals. Concrete repair chemicals are of various types. While some are used for increasing bond strength between old concrete and new concrete; others are used for water repellant or corrosion resistance purpose. Depending upon … Read more
Honeycomb Repair in Concrete Surface Honeycomb and larger surface voids require procedures resembling those for typical concrete repairs. But there’s nothing typical about the recommended approaches to repairing these voids. They vary greatly. While repairing voids or honeycomb in concrete surface, the most common question that arises is what should be the thickness of the … Read more
This method is used for repairing holes having a depth nearly equal to greater than the least surface dimension, i.e. for any holes and narrow slots cut for the repair of cracks. This method is not used for shallow depressions; for filling patches where reinforcement is exposed or holes which extend through and through wall … Read more