Concrete Training for Site Agents, Gangers and Technicians in the control of concrete on site

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 Concrete Training

Programme

DAY 1 

Review of concrete properties

  • Strength grades
  • The trouble with water/cement ratio
  • Consistence
  • Cohesion, segregation and bleeding
  • Durability

 

Materials update

  • Cementitious materials
  • Properties of blended cements
  • Aggregates including “fines”
  • Admixtures, Additives and Additions

 

Concrete faults (1)

 

  •  Construction defects
  • Blow holes
  • Honeycombing
  • Grout loss
  • Scour
  • Water runs & sand streaks

 

Laboratory practical exercise:

 

  • Trial mixes
  • Effect of changing the water/cement ratio
  • Slump testing
  • Flowing/self-compacting concrete
  • Air content
  • Cube making and curing
  • Demonstration – Cube testing

 

 Concrete faults (2)

 

  • Non-structural cracking
  • Thermal cracking
  • Plastic cracking
  • Plastic settlement
  • Plastic shrinkage
  • Drying Shrinkage

 

Overnight syndicate project:

  • Early-age cracking.

 

 DAY 2

 

Syndicate reports

Outline of concrete types

  • Nominal mixes
  • Prescribed concretes
  • Standardized prescribed concretes
  • Designed concretes
  • Designated concretes
  • Proprietary concretes
  • Durability criteria

 

Concretes for specific applications

 

  • Selecting appropriate workability levels
  • Watertight construction
  • High quality surface finishes

 

Supervision of concrete construction (1)

 

  • Procurement of concrete
  • Checking and testing
  • What to do if the slump is wrong
  • Transporting concrete

 

Supervision of concrete construction (2) 

 

  • Compaction
  • Over-vibration
  • Under-vibration
  • Secondary vibration
  • Curing

 

Conformity criteria (1)

 

  •  Interpretation of test results

Evaluating test results

  • Comparing yesterday’s trial mixes

Conformity criteria (2)

 

  • Action on non-conformity

Contractor-specific topics

 

Questions, answers and final discussion.

 

Duration: 2 Days

Cost: £575 + VAT

 

 

 

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