Articles

• By Sivakumar
• In Admixture
• Posted January 24, 2014

ADMIXTURE TO ENHANCE WORKABILITY STRENGTH & DURABILITY

Workability increase through admixture addition for strong and durable concrete.....

• By Sivakumar
• In Admixture
• Posted March, 2014

COMMUNICATION ON ADMIXTURE REDOSING

“Concretes containing high-range water reducers often have shown rapid slump loss. To overcome this, a second dosage of high-range water reducer may be used to restore the slump without any apparent ill effects. Generally, more than two dosages are less effective and concrete may lose its workability faster than with a single dosage.....

• By Sivakumar
• In Concrete
• Posted April, 2014

COMPRESSIVE STRENGTH OF CONCRETE - HARDENED CONCRETE

Modern Day construction utilizes the efficiency of Reinforced Cement Concrete (R.C.C) to a great extent. Technological Advances in R.C.C contribute to Construction of Mega and High Rise Structures across the Globe.....

• By Sivakumar
• In Concrete
• Posted January, 2015

Entrapped Air in Concrete Cube - ICOMAT

Entrapped Air in M45 Grade Concrete (Fly Ash blended) – Section of well compacted & cured cube......

• By Sivakumar
• In Concrete
• Posted October 25, 2014

Concrete Admixture Super Plasticizer - TEST DATA AS PER ASTM C494 & IS 9103

Physical requirements verification for Super-plasticizers are ASTM C 494 & IS 9103, Criteria for material selection used in trial mixes – to limit the variations, Criteria for trial mixes, Physical Properties verification for Superplasticizing Admixture – Mid Range, Physical Properties verification for Superplasticizing Admixture – High Range....

• By Sivakumar
• In Concrete
• Posted August 17, 2015

How early should curing begin

“Plastic shrinkage is the shrinkage that occurs in the surface of fresh concrete within the first few hours after it has been placed, that is, while the concrete is still plastic and before it has attained any significant strength” - William Lerch. It is known that early curing will prevent .......

• By Sivakumar
• In Concrete
• Posted August 17, 2015

Failure Pattern of Concrete Specimen on compression Test

Check the Different Failure patterns of Cube & Cylinder - Two Pyramid Failure - Ideal .........

• By Sivakumar
• In Concrete
• Posted August 17, 2015

Minimum Guideliness for Handling SCC

Self Compacting Concrete (SCC) is fast becoming a regular concrete in Indian Construction Industry. Professionals have ecognised that SCC is not only a concrete product but contributes to the application part as well......

• By Sivakumar
• In Concrete
• Posted August 17, 2015

Tensile Strength of Concrete - Hardened Concrete

Selection of Test method is depending on Design requirements and loading of concrete structure

Example ;
• Flexural Testing is adopted in Pavement design
• Split Tensile in Light weight Aggregate Concrete Design
• No conversion of results between these tests is allowed
• For design purpose suitable test shall be performed and the corresponding value shall be used in design calculations