Super Plasticizers: Classification and Uses | Concrete Technology
In this article we will discuss about:- 1. Meaning of Super Plasticizers 2. Classification of Super Plasticizers 3. Uses. Meaning of Super Plasticizers: Super plasticizers are also called high range water reducers. They are of recent origin and relatively are more effective type water reducing admixtures. They were developed in Japan and Germany during 1960 and 1970 respectively. Chemically
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- What are plasticizers & superplasticizers?
- In the concrete technology, plasticizers and superplasticizers are also called high range water reducers. When added to concrete mixtures, they confer a number of properties including improved workability and strength. The strength of concrete is inversely proportional to the amount of water added, i.e., the water-cement (w/c) ratio.
- What are the characteristics of super plasticizer?
- Super plasticizer provides an excellent development of early strength. Many important characteristics of concrete are influenced by the ratio (by weight) of water to cementitious materials (w/cm) used in the mixture. By reducing the amount of water. The cement paste will have higher density, which result in higher paste quality.
- What is globmarble super plasticizer?
- GlobMarble super plasticizer is especially optimized for plastification and water reduction of cementitious construction materials. Super plasticizer provides an excellent development of early strength. Many important characteristics of concrete are influenced by the ratio (by weight) of water to cementitious materials (w/cm) used in the mixture.
- What are the benefits of super-plasticizers?
- Super-plasticizers & plasticizers enhance concrete's workability, making it highly beneficial for applications like shotcrete. When a homogeneous mix is applied pneumatically, it conforms with even rugged surfaces while maintaining the initial resistance to compression, offering good structural support from the beginning.
- How to mix super plasticizer?
- You can also add Super plasticizer to the water 10-15 minutes prior to casting (until plasticizer dissolves in water), then mix with dry ingredients. Please note: Concrete minimum mixing time is 3 minutes with mechanical drill or 5 minutes with mortar mixer (it takes a few minutes until Super Plasticizer absorbs into the cement and start reaction).
- What is the dosage of super plasticizer?
- Super plasticizer dosage is 0.5- 1 % by weigh of cementitious material. For 100 lbs (45.3 kg) (bag of cement) you'll need approximately 1 lb (0.45 kg) of GlobMarbe super plasticizer. We recommend to start with 1% by cement weight, then lower the dosage as needed.
