How do they match?

Climate protection by CO2 reduction and high-quality concrete –

Relative dynamic E modulus concrete (c = 320 kg/m3, w/c = 0,50) obtained with different cements by the CIF method. On the left: ­dependence on the compressive concrete strength. On the right: dependence on a parameter that includes the degree of hydration of the paste after 28 d and a porosity term of the standard mortar (characteristic value CIF, E module)
Relative dynamic E modulus concrete (c = 320 kg/m3, w/c = 0,50) obtained with different cements by the CIF method. On the left: ­dependence on the compressive concrete strength. On the right: dependence on a parameter that includes the degree of hydration of the paste after 28 d and a porosity term of the standard mortar (characteristic value CIF, E module)

General

The annual consumption of concrete worldwide is currently estimated at approximately 5 billion m3. Based on the forecasts of the International Energy Agency for worldwide cement consumption in 2050, this amount could increase to about 10 to 12 billion m3. These figures attest to the significance of concrete as construction material for social development in the world. The predicted amounts present a tremendous challenge – with a view to global climate protection, efficient utilization of natural resources, the technical quality of concrete as construction product, and the construction...

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BFT 02/2014

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BFT 02/2014

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