Calcium Sulfoaluminate (CSA) Cement Binder
Calcium Sulfoaluminate (CSA) Cement Binder
CSA Binder
CSA Cement Binder
Calcium Sulfoaluminate Cement Binder is a hydraulic binder based on calcium sulphoaluminate rather than calcium aluminates, which are the basis of Calcium Aluminates Cement, or calcium silicates, which are the basis of Portland Cement.
The difference gives Calcium Sulfoaluminate Cement Binder properties particularly suited to formulators of products such as self-leveling or self-smoothing compounds, rapid hardening screeds, tile adhesives, non-shrink grouts, rapid setting, and special mortars.
Calcium Sulfoaluminate Cement Binder is used in formulated products as a hydraulic binder by itself, with the addition of calcium sulfates, or in combination with Portland cement.
The setting time is quicker than that of Portland cement and has a rapid strength development.
Calcium Sulfoaluminate-based Cement Binder does not release free lime during hydration, thus eliminating the primary cause of efflorescence.
Calcium Sulfoaluminate based Cement Binder is Calcium Sulfoaluminate Binder for Portland Cement.
Calcium Sulfonuminate-based Cement Binder is a hydraulic binder based on calcium aluminate sulfate.
The setting time is quicker than ordinary Portland cement (OPC), and it does not release free lime during hydration, decreasing efflorescence.
Calcium sulfoaluminate-based Cement Binder accelerates the set time and strength of Portland cement, compensates for shrinkage, and adapts the rheology to the application.
Characteristics of Calcium Sulfoaluminate Cement Binder
Resistant to sulfate attack
Impermeable
Short curing phase
Freeze-thaw resistant
Uses of Calcium Sulfoaluminate Cement Binder
CSA cement has been used as a binder in airport runaways, concrete road repair, concrete bridges, and many other applications where fast reuse is needed.
Applications
These properties are applied to obtain a wide range of products:
Fast setting cement
Rapid hardening mortars
Tile adhesives
Self-leveling compounds
Non-shrink grouts
Water stopping mortars
With a careful selection of the constituents (OPC, calcium sulfates, additives), it is possible to create mixes with a range of different hydraulic properties:
Adjustable setting time
Rheology adapted to the application
High early strength
High long-term strength
Shrinkage compensation
Use of Additives
Calcium Sulfoaluminate Cement Binder may be used in combination with chemical additives such as:
polymers, either in latex form or re-dispersible powder form
Defoamers
Retarders
Accelerators
Plasticizers/superplasticizers
Rheology modifiers
Fibers, etc
Calcium Sulfoaluminate Cement Binder also has properties that make it suitable for formulating:
Self-smoothing and self-leveling compounds
Tile adhesives
Casting mortars
Rapid hardening screeds
Non-shrink grouts
Mining products such as mining roof support materials
Glass fiber reinforced concrete
Benefits of Calcium Sulfoaluminate Cement Binder
Rapid Strength Development
When CSA is added to mortars or concrete, it significantly increases its strength development.
It takes 24 hours for concrete and mortars with a Calcium sulfate-based Cement Binder to achieve the same strength OPC achieves in 28 days.
