The high ambient temperature and the high temperature of aggregates require to cool down the concrete mix during the batching process so as to control concrete temperature beyond a definite given value.
The heat of hydration raises the temperature during the curing process by up to 25 degrees, causing an increase of volume. After the curing the concrete cools down, again reducing its volume and thus naturally causing cracks eventually. The addition of GEA Geneglace flake ice during the batching process effectively controls temperature, smoothens concrete volume variations and subsequent cracking.
Cement has a heat of hydration of 419 kJ/kg. However, this can be reduced to about 240 kJ/kg.
Thanks to its unique cooling potential, the sub-cooled GEA Geneglace flake ice is ideal in this application. The "ice only" feature of its manufacture means that the latent heat of fusion, the principal source of the cooling energy, is 100% available. The dry flake ice at -5C therefore works far more effectively than wet ice (e.g. crushed ice).
Furthermore its larger heat exchange surface area means that the cooling process takes place much faster and more concrete can be cooled in the working period.

Our GEA Geneglace flake ice generator F2000 is the largest ice maker in the world. Each drum produces over 50 mt/day.

Batching plants can make use of our Geneglace flake ice production and storage for concrete cooling.
Especially in cities and populated areas where major constructions are in progress (such as hotels, office towers, apartments, shopping centers, etc.) batching plants should be located near the construction sites due to traffic jam, regional regulations, etc. In this case GEA Grasso Philippines can offer you containerized flake ice plants!