ACTIVATION OF SLAG BLENDED CEMENTS BY AMINES
Case Study
27/07/21

ACTIVATION OF SLAG BLENDED CEMENTS BY AMINES

Cements containing blast furnace slags such as CEM III cements are increasingly used in both precast and ready-mixed concrete to improve the environmental footprint. However, the replacement of clinker by slag at a content varying between 35 and 95 wt% leads to a significant slow-down of cement hydration and consequently to a loss of early…
ACTIVATION OF SLAG BLENDED CEMENTS BY AMINES
Process
22/09/20

OVERTAKING CEMENT GRINDING PROCESS LIMITATIONS TO REACH FULL CEMENT ACTIVATION POTENTIAL

The performance of conventional strength enhancers can be limited by different grinding process constraints. An example is given with a process design based on a combined high-pressure-roller-press with single chamber ball mill and 3rd generation separator.

OVERTAKING CEMENT GRINDING PROCESS LIMITATIONS TO REACH FULL CEMENT ACTIVATION POTENTIAL
Chryso labnews
Case Study
27/07/20

ACTIVATION OF BLENDED CEMENT BY AMINE ADDITIVES

In order to reduce CO2 emissions coming from cement production, manufacturers are increasingly making use of supplementary cementitious materials (SCMs)

ACTIVATION OF BLENDED CEMENT BY AMINE ADDITIVES
Innovation
18/06/20

THIXOTROPY AND FILL-FREE® ADMIXTURES

Cement pastes are thixotropic; left at rest, their rheological constants —among which viscosity— increase over time. Under steady shear, cement paste viscosity decreases (which qualifies it as shear-thinning) but may take some time to reach a steady value (which qualifies it as thixotropic).

THIXOTROPY AND FILL-FREE® ADMIXTURES
Innovation
22/05/20

INTERACTION BETWEEN CLAYS AND POLYCARBOXYLATE SUPERPLASTICIZERS

The robustness of PolyCarboxylate Ether (PCE) superplasticizer performance is challenged by the variable amount of clay minerals in aggregates. It will be shown here how a swelling clay like Montmorillonite interacts with polymers, interfering with their ability to disperse cement particles thus influencing the rheological behavior of concrete.

INTERACTION BETWEEN CLAYS AND POLYCARBOXYLATE SUPERPLASTICIZERS