concrete

Concrete mix designing is a vital part of any construction activity. Why we do mix design when proportions for material are listed in IS codes for various grades? The listed mixes have more cement content than required and have fix properties like workability, retention time etc. In order to...

Specification for concrete work of high rise building Concrete shall be transported and placed by approved methods that ensure segregation or loss of material will not occur. Concrete drop during vertical placement shall not exceed 2.5m. For heights greater than 2.5m, the Contractor shall pour...

Rebound hammer test specifications are given in IS 13311 part 2 1992. Every one know about it and knows how to do rebound hammer test, many had gone through the IS codes, posts on blogs and some interview questions. One of my friend ask me, how i should do the rebound hammer test, as per IS...

Properties of Cement Concrete Properties of concrete are influenced by many factors mainly due to mix proportion of cement, sand, aggregates and water. Ratio of these materials control the various concrete properties which are discussed below. Properties of Concrete are Grades (M20, M25, M30...

If You really Ask me, then let me tell you. The number of cement bags per cum of conrete depends on Your Concrete Mix Design. Mix Designing is done to achieve a specific characteristic of Concrete like compressive strength, durability etc. Characteristic of concrete depends on design of...

Hello to All, I came across the new inventions which are going on in construction Industry. Creating a concrete which repairs itself. Concrete is porous material (porosity depends on mix design), so if not protected will start degrading over period of time. To protect the concrete we...