The most common reasons for using chemical admixtures in a concrete mix are:- To increase workability without changing water content To reduce water content without changing workability To increase strength To reduce the total cost of the materials used in the concrete To adjust setting time To reduce segregation and/or bleeding To accelerate the rate of early strength gain To improve pumpability To effect a combination of above To maintain adequate freezing and thawing resistance of concrete To improve potential…
Effective Waterproofing for Durable Structures
“No material is itself durable or non-durable, it is the interaction of the material with its in-service environment that determines its durability” – says a well-known concrete technologist Larry Masters. The three important steps that ensure adequate durability of concrete in-service are: Compliance with current standards of good practice during construction. The use of new and improved materials and innovative construction systems designed for increased durability at competitive costs. Provision of protection to existing undamaged structure against adverse environments. These…