Replacing a percentage of the cement with Ground Granulated Blast furnace Slag (GGBS) or Fly Ash produces a significantly less permeable concrete with improved resistance to aggressive conditions as well as improved handling and placing.environment..
Admixtures are materials added to concrete during the mixing process to modify its properties in the fresh and hardened state. The addition of a WRA (also called plasticiser) produces a stronger and more durable concrete without the need for high cement contents.
HRWRA’s (also called Superplasticisers) are used to produce concretes with a high consistence without the need for additional water, they are also used for the production of high strength concrete.
These admixtures produce evenly distributed minute air bubbles throughout the concrete to give a durable concrete resistant to freeze/thaw damage
These products are used to generate high volumes of air in a mix, typically 15% to 25% although up to 70% is attainable using a preformed foam. The resulting concrete has a relatively low strength but is extremely fluid.
CEMEX Readymix offer specially designed mixes suitable for pumping, the height and length to be reached should be specified to the pump hire company as this will determine the size of pump to be supplied.
Metakaolin and microsilica concretes provide considerably enhanced performance characteristics, including improved durability and strength as well as greater mix stability
In terms of construction costs, RCC is typically equal to or as much as 20% lower than asphalt, depending on the project. Additionally, the life cycle costs of RCC when compared to asphalt are about 30% lower. View
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Promptis® is CEMEX's cutting-edge fast formwork removal concrete that in four hours reaches a level of compressive strength equivelant to normal concrete only after 18 hours. View