What is the temperature of human body - 37 degree - you can check anywhere.
So does 37 degree temperature going to cause any issue - you may get issue at any temperature, if you dont care about concrete.
We can pump concrete at any temperature.
What happens, when temperature goes up - Dehydration
what is dehydration - water goes out from the concrete in the form of vapors / steam.
We need to care for concrete when temperatures are high to avoid evaporation of water from the concrete.
What happens if water evaporates
- If its in pumping, you will loose workability and chocking of pump might happen.
- If its placed in position - it will loose water, forms shrinkage cracks and in continuation to it, it will loose the strength.
How i can do a concrete at high temperatures
A article is written on it in details, take some efforts to search it at forum.
When we do a concrete at high temperatures, we need to prevent moisture losses from it.
How to do it - there are many ways
- Wrap hessian cloths around Transit mixers drum, Concrete pipeline and keep them wet during concreting.
- On slab area - sprinkle the water to lower the temperatures of formwork and reinforcement steel.
- During concreting - start early curing to placed concrete, cover it with hessian cloth, plastic sheet to prevent moisture loss.
All above lines indicates the only one parameter, do not allow moisture loss from concrete at high temperatures.
You can follow any method or develop your own to prevent losses.