Retardant additives are sometimes used to reduce the impact of hot air on concrete retention, sometimes to extend the retention time in bulky tasks such as large concrete dams or pumping concrete over long distances or transporting ready-made concrete over long distances.
Necessity of application and benefits:
- Concrete pouring in hot and dry air
- Concrete operations that are a long way from the batching to the execution site.
- Massive concrete pouring like dams and tunnels
- Concreting in conditions where the slump rate is slow.
- Increase retention time
- Increased ultimate strength of concrete
- Providing concrete in windy areas.
- Reduce concrete shrinkage and prevent surface cracks caused by it
- Increase shelf life of slab and concrete shelf life