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Concrete Admixtures
Viscosity-Modifying & Underwater Concreting
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Rheomac® UW 450
Rheomac
UW 450 anti-washout admixture is a patented, ready-to-use, liquid
cellulose-based admixture that is specially developed for underwater
concrete applications. Concrete containing Rheomac UW 450 admixture
exhibits superior resistance to washout of cement and fines, while
impeding the blending of external water into the plastic concrete.
Features
Reduction in washout of cement and fines
Reduction in segregation, even with highly fluid, high water-cementitious
material ratio concrete mixtures
Thixothropic action that provides concrete stiffening after placement
Slump
retention characteristics similar to plain concrete
Minimal
effect on setting characteristics
Reduction or elimination of concrete bleeding
Batch
plant or job site addition
Benefits
Superior and predictable in-place concrete properties
Dewatering costs reduced/eliminated
Environmental impact of cement washout in water minimized
Flexibility in batching procedures
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Rheomac® VMA 450
Rheomac
VMA 450 organic, viscosity-modifying admixture (VMA) is a premier
ready-to-use, liquid admixture specially developed for producing
concrete with enhanced viscosity and controlled rheological properties.
Concrete containing Rheomac VMA 450 admixture exhibits superior
stability and controlled bleeding characteristics, thus increasing
resistance to segregation and facilitating placement.
Features
Increased viscosity
Thixotropic properties
Improved stability during transport and placement
Controlled bleeding
Benefits
Reduced
segregation, even with highly-fluid concrete mixtures
Enhanced pumping and finishing
Reduced
sagging helping plastic concrete maintain its shape on slopes and arches
Facilitates production of highly-fluid concrete mixtures such as
Rheodynamic® SCC
Superior and predictable in-place concrete properties
Enhances surface appearance
Uniform
appearance in high coarse aggregate content and exposed-aggregate
architectural concrete
Provides flexibility in mixture proportioning
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Rheomac® VMA 362
Rheomac
VMA 362 viscosity-modifying admixture (VMA) is a ready-to-use, liquid
admixture that is specially developed for producing concrete with
enhanced viscosity and controlled rheological properties. Concrete
containing Rheomac VMA 362 admixture exhibits superior stability, thus
increasing resistance to segregation and facilitating placement and
consolidation.
Features
Modifies viscosity of concrete
Easy to
dispense
Benefits
Controls bleeding
Modifies rheological properties
Provides flexibility in mixture proportioning and batching
Provides concrete stability during transport and placement
Reduces
segregation, even with highly-fluid concrete mixtures
Enhances pumping and finishing
Enhances surface appearance
Provides superior and predictable in-place concrete properties
Facilitates production of highly-fluid concrete mixtures such as
Rheodynamic® Self-Consolidating Concrete (SCC)
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Rheomac® VMA 358
Rheomac
VMA 358 organic, viscosity-modifying admixture (VMA) is a ready-to-use,
liquid admixture developed for producing concrete with enhanced
viscosity and controlled rheological properties. Concrete with Rheomac
VMA 358 admixture exhibits superior stability, increasing resistance to
segregation and facilitating placement.
Features
Controlled
viscosity
Stability
during transport and placement
Benefits
Reduced
segregation, even with highly-fluid concrete mixtures
Enhances
pumping and finishing
Reduced
sagging helping plastic concrete maintain its shape on slopes and arches
Facilitates production of highly-fluid concrete mixtures such as
Rheodynamic® SCC
Superior
and predictable in-place concrete properties
Enhances
surface appearance
Flexibility in mixture proportioning |
