Concrete production accounts for about 8% of man-made CO2 emissions worldwide, of which up to 90% is due to cement clinker production. Substituting clinker contained in cement and ultimately in concrete with alternative materials such as limestone filler or supplementary cementitious materials (SCMs) can save considerable amounts of carbon emissions. However, these more sustainable materials do not come without their own challenges and influence the concrete properties: Loss in workability, worsening of rheology, and the reduction of strength.
The intelligent cluster system MasterCO2re™ overcomes performance gaps associated with low-clinker concrete production supporting our customer's demanding process to reduce clinker and achieve sustainable concrete performance.
By reducing the cement amount in concrete
MasterCO2re™ pushes the limits of low-clinker concrete by enabling the easy usage of high volumes of clinker substitutes while safeguarding substantial performance characteristics.
Thanks to the intelligent cluster system, MasterCO2re™ releases the polymer over time, ensuring consistent flowability and workability during concrete transport and placement.
Concrete with the advanced MasterCO2re™ technology has a lower viscosity than conventional superplasticizers. As a result, concrete is easier and faster to pump and place. The water content can be further reduced without affecting the rheological properties, even in concrete mixes with reduced clinker content.
MasterCO2re™ promotes the formation of a dense and homogeneous structure of cement hydrates, resulting in optimal strength development.
With rapidly changing cement types and binder compositions, the stability and quality consistency is a challenge in the daily operation of concrete plants. MasterCO2re™ successfully counteracts the potential of high-water absorption and undesirable interactions with admixtures caused by variations in the chemical and mineralogical composition of binders.
MasterCO2re™ is a game-changing technology based on an intelligent cluster system (ICS) that delivers its effects precisely when required. A portion of its freely available polymers is immediately dispersed for initial water reduction. The finely tuned chemical structures of the diverse clusters optimise both workability retention and cement hydration by adapting the polymers' release mechanism to the cement matrix's characteristics.
MasterCO2re™ reliably ensures excellent flowability and rheology even at high temperatures, allowing easy pumping and placing of concrete.
Download more helpful information and gain valuable insight into the performance results achieved with MasterCO2re™ related to ready-mix and precast applications. In addition, discover the CO2, water, and cost savings that MasterCO2re™ can unlock. With the help of the ECO2NOW App, we will also support you in the decision-making on how to lower CO2 in your concrete recipe.
Rising energy and raw material prices and the need to switch to more sustainable production methods are currently the biggest challenges for the construction industry. The increasing cost pressure makes sustainable action more difficult. However, sustainability and economic efficiency are not mutually exclusive and go hand in hand.
Do you also want to make a sustainable contribution and optimize your concrete mix in terms of CO2 and costs? Don't loose time and set up a meeting with your local Master Builders Solutions expert now.