(Formerly known as GLENIUM 51) and Table 7: High range water reducing/Super plasticizer. Concrete n Improves concrete’s mechanic properties. Glenium is particularly effective in improving the day to day consistency of concrete mixtures. This is accomplished by providing unparalleled slump. Use Master Glenium Water Reducer with your concrete, a full-range water- reducing admixture that is highly effective in producing concrete mixtures with.
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PCEs are composed by a methoxy- polyethylene glycol copolymer side chain grafted with methacrylic acid copolymer main chain.
The technology and versatility of the superplasticizers portfolio excels in high performance areas such as high strength concrete, pumpability, self-consolidating concrete, low permeability, low concretr absorption concrete and low shrinkage applications.
Cookies help us deliver our services. This effect drastically improves the performance glfnium the hardening fresh paste. Close Login Please login with your username and password. With a relatively low dosage 0. Close Please select your location. These polymers are used as dispersants to avoid particle segregation gravel, coarse and fine sandsand to improve the flow characteristics rheology of suspensions such as in concrete applications.
These forces can be directly detected by the use of the atomic force microscopy AFMworking with model substances in liquid environment. MasterGlenium Superior early-age strengths Excellent precast-prestress product Faster turnover of forms. The number and the length of side chains are flexible parameters that are easy to change. MasterGlenium Rapid cement dispersion Shorter mixing time, especially in high performance mixtures Increased productivity.
MasterRheobuild Extended slump retention Cohesive and non-segregating Minimal bleed water. The particular configuration of the MasterGlenium SKY molecules allows their delayed absorption onto the cement particles and disperses them effectively over a long period of time. The polyethylene oxide PEO or MPEG group affords a not uniform distribution of electron cloudwhich gives a chemical polarity to the side chains.
Visit our download center. Close Select your language. MasterGlenium Enhanced slump retention High early convrete Operational efficiency. Cookies help us deliver our services. Admixtures added glneium transit through automated slump management systems, such as Verifi,  allows concrete producers to maintain slump until discharge without reducing concrete quality. Close Login Please login with your username and password.
Compared to conventional PCE superplasticizers, our MasterGlenium SKY range enables ready-mix producers to optimize inventory, facilitate logistics and reduce investments in tanks and dispenser equipmentthus also decreasing maintenance costs.
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Keep me signed in. This displacement of the polymer on the particle surface ensures to the side chains the possibility to exert repulsion forces, which disperse the particles of the suspension and avoid friction.
MasterGlenium SKY – Superplasticizer for ready-mix concrete
Cement Concrete Chemistry Colloidal chemistry Heterogeneous chemical mixtures. The strength of concrete increases when the water to cement ratio decreases. The new generation of this kind of admixtures is represented by polycarboxylate ether-based superplasticizers PCEs.
Keep me signed in. They leave sufficient area on the cement surface to allow a rapid hydration reactionresulting in high early strength development.
Water Reducers, High-Range
From Wikipedia, the free encyclopedia. However, their working mechanisms lack a full understanding, revealing in certain cases cement-superplasticizer incompatibilities.
Cement and Concrete Composites. As a consequence of PCE adsorption, the zeta potential of the suspended particles changes, due to the adsorpsion of the COO- groups on the colloid surface. MasterGlenium SKY New generation polycarboxylic ether hyperplasticiser for high performance concrete.
MasterGlenium 7500: Full-range water-reducing admixture
MasterGlenium Rapid cement dispersion Shorter mixing time, especially in high performance mixtures Improved concrete production productivity. Excellent concrete performance in fresh and hardened states. Close Please select your location. MasterGlenium SKY products offer a single, versatile admixture for many types glrnium applications and conditions.
When the side chains have a huge amount of EO units, they lower with their high molar mass the charge density of the polymer, which enables poor performances on tlenium suspensions. The addition of superplasticizer in the truck during transit is a fairly new development within the industry.
PCE’s backbone, which is negatively charged, permits the adsorption on the positively charged colloidal particles.
Views Read Edit View history. Superplasticizersalso known as high range water reducersare chemical admixtures used where well-dispersed particle suspension is required.
This page was last edited on foncrete Decemberat This new generation of superplasticizers guarantees a concrete that meets the original specification from the fresh to the hardened stage. Their addition to concrete or mortar allows the reduction of the water to cement ratio without negatively affecting the workability of the mixture, and enables the production of self-consolidating concrete and high performance concrete.
Journal of Colloid and Interface Science.