Protection of Newly Placed Concrete Curing Time
Concrete Technology

Protection of Newly Placed Concrete Curing Time

Protection of Newly Placed Concrete Curing Time Newly placed Concrete Curing Time in the initial stages of setting(up to 12-24 hrs.) should be protected by approved means from frost, mist-, rain and drying winds. Exposed

Concrete Works
Concrete Technology

Finished Concrete Works and Workability of Concrete

Finished Concrete Works and Workability of Concrete Finished Concrete Works Check and inspect after stripping of formwork for defects such as; Honeycombing Porous concrete and voids Exposure of reinforcement Poor joints Inadequate cover to reinforcement

Quality and Quantity of Cement
Concrete Technology

Assessing the Quality and Quantity of Cement

Assessing the Quality and Quantity of Cement 1.Colour of the cement should be uniform and grey for 0rdinary Portland. Cement(OPC) and blackish in case of Portland Pozzolana Cement(PPC). 2.When rubbed between fingers, it should be

Failures in Concrete Structure
Concrete Technology

Factors Affecting Failures in Concrete Structure

Factors Affecting Failures in Concrete Structure Failures in concrete structures can be due to any of the following factors: 1. incorrect selection of materials 2. errors in design calculations and detailing 3. poor construction methods

Fresh Concrete
Concrete Technology

Various Type of Test on Fresh Concrete

Various Type of Test on Fresh Concrete The following various type of test on fresh concrete given below: Workability: The workability of a concrete mix gives a measure of the ease with which fresh concrete

Core Test for Concrete Structure
Concrete Technology

Core Test for Concrete Structure

Core Test for Concrete Structure In Case of doubt regarding the grade of concrete used,either due to poor workmanship or based on results of cube strength tests,compressive strength test of concrete maybe carried out by

Procedure for Casting of Concrete Cubes
Concrete Technology

Procedure for Casting of Concrete Cubes

Procedure for Casting of Concrete Cubes The following Procedure for Casting of Concrete Cubes detailed given below: SAMPLE OF CONCRETE Sample of concrete for test specimen shall be taken at the mixer or in the