REQUIREMENTS OF FORMWORK – QUALITY, SAFETY & ECONOMY In the selection of materials for formwork, the three general principles of quality, safety and economy must be paramount. Material
Types of Chemical Admixtures for Concrete Unlike mineral admixtures, which may be introduced as blended cements, chemical admixtures are typically added during the mixing process of concrete production.
Tremie Concreting – On Site Precautions During tremie concreting the following precautions are to be taken while doing the work: The concrete should be coherent, rich in cement
Quality Requirements of Pumped Concrete Pumped concrete can be used for most structural concrete construction but is most useful where space for construction equipment is limited or access
Concrete Placing As with the handling of concrete, certain fundamental considerations govern placing techniques. First and perhaps foremost is the need to avoid segregation of the concrete caused
What is Compaction of Concrete? Compaction of concrete is one of the important site operations that together enable the fresh concrete to reach its potential design strength, density
Placing of Concrete in Hot Weather For normal concreting operations the temperature of concrete should vary between 150C to 250C to enable it to attain its full ultimate
