Chemical Admixtures - Cement
Superplasticizers, also known as plasticizers or high-range water reducers (HRWR), reduce water content by 12 to 30 percent and can be added to concrete with a low-to-normal slump and water-cement ratio to make high-slump flowing concrete.
Concrete Plasticizers, Cement & Plastic Fillers | USG
Cement & Plastic Fillers. Builders and project managers count on USG’s selection of concrete plasticizers and cement plasticizers to strengthen their structures. Our concrete plasticizer products reduce the water/cement ratio to achieve better results. View our plasticizer admixture for concrete and other offerings below.
Superplasticizer
Plasticizers are chemical compounds that enable the production of concrete with approximately 15% less water content. Superplasticizers allow reduction in water content by 30% or more. These additives are employed at the level of a few weight percent. Plasticizers and superplasticizers retard the curing of concrete. [1]
Plasticizers For Concrete - Principle, Types & Advantages
Plasticizers make the compaction easy without the use of vibrators. Improves flowability and good adhesion to the surface. Concrete with high density is achieved using plasticizers. Plasticizers reduce the moisture content in concrete, making it frost resistant and prevents cracking.
Super Plasticizers: Classification and Uses | Concrete Technology
Super plasticizers are also used for the production of high strength and high performance concrete. With the use of super plasticizers, flowing concrete could be produced with the water/cement ratio as low as 0.25 or even less. The strength of such concrete was found 120 MPa (1200 kg/cm 2) or more.
- What is a plasticizer in concrete?
- and more resistant to cold. A plasticizer is an additive used in concrete to improve its workability, performance, and durability. Plasticizers are typically added to concrete mixes to make pouring, shaping, and finishing easier. They can also help to increase the strength and reduce the permeability of the hardened concrete.
- Which plasticizer is best for concrete?
- Polycarboxylate ether (PCE) – PCEs are high range water reducers that provide increased early and late strength. They allow low water-cement ratios. Sulfonated vinyl copolymers – These versatile plasticizers work well across different types of concrete mixes and temperature conditions.
- Should you add plasticizers to concrete and PVC?
- Adding plasticizers to concrete and PVC comes with a mix of pros and cons: Advantages: Disadvantages: Here are some key points about plasticizers in concrete: Plasticizers are chemical admixtures that increase the workability and plasticity of concrete. This makes concrete easier to place and finish.
- How do Plasticizers make concrete stronger and last longer?
- Plasticizers make concrete stronger and last longer by reducing the amount of water and cement needed to reach a certain level of workability. Since the heat of hydration of mass concrete goes down when the cement weight goes down, plasticizers can do this. Plasticizers and water reducers are chemical admixtures used to make concrete more workable.
- What are plasticizers & water reducers?
- Plasticizers and water reducers are chemical admixtures used to make concrete more workable. Unless the mixture is “starved” of water, increasing the w/c ratio reduces the concrete’s strength. An increase in durability is achieved by decreasing the water content (without “starving” the concrete).
- How much plasticizer should be used in concrete admixture?
- Typical plasticizer dosage rates range from 0.3-1.5% by weight of cementitious material. Overdosing can negatively impact strength. Trial batches should be tested. There are several classes of plasticizers are used as admixture in concrete . some important types of plasticizers used in concrete:
