3.5
Thermal Expansion / Contraction
Designer
- Max internal limit
- Max temperature gradient
- Reinforcement for thermal cracking control
- Aggregate type limitations
- Specification of cements/additions
Builder
- Pour size / joints
- Ambient temperatures
- Temperature monitoring regime
- Curing / insulation
- Formwork stripping
Producer
- Mix to minimize heat generation (and satisfy limiting values)
- Cement type / additions
- Aggregate type /coefficient of thermal expansion
- Procedures to limit fresh concrete temperature
- Transport conditions
Further Guidance
Main Standards – Reference
I.S. EN 1992-1-1
Other Guidance Documents
CIRIA Report C 766 : Control of cracking caused by restrained deformation in concrete (2018)
Concrete Advice No. 25 Large volume concrete pours