Categories
Portland cement

Physical effects of limestone on the hydration of cement clinkers

Effects of limestone addition on the hydration of limestone blended cement can be classified into two aspects, viz. physical effects and chemical effects. Numerous researchers who investigated Portland limestone cement with high level of calcite addition regard it as inert filler, e. g. by means of both thermal and BSE image analysis, it was investigated […]

Categories
Modelling

Two main methods to model cement-based materials

With the development of computer technology, increasing attention is being paid to the modeling work of cementitious-based materials. Many researchers have been carrying out the research to better model the hydration of cement-based materials in the last decades. It is obvious that a cogent simulation of the hydration of cement-based materials has crucial role in […]

Categories
Blended cement

Brief introduction of limestone cement

Limestone has been utilized as a mineral addition in cement industry for a long time. The latest European Standard (EN 197-1-2000) allows up to 5% limestone as a minor additional constituent, and also identifies four types of Portland limestone cement containing 6-20% limestone (types II/A-L and II/A-LL) and 21-35% limestone (types II/B-L and II/B-LL), respectively. […]