Plasticizers: Types, Uses, Classification, Selection & Regulation
It is almost colorless and odorless oily liquid. It is very slightly soluble in water but soluble in alcohols, hexane etc. while miscible and compatible with all the monomeric plasticizers used in PVC compounding. Melting point: 43°C (45°F; 230 K) Boiling point: 244-252°C at 0.7 kPa.
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Superplasticizer: Types, Advantages & Disadvantages
Superplasticizers (SPs) are also known as high- range water reducers that are additive used in making high strength concrete. Plasticizers are chemical compounds that enable the production of concrete with approximately 15% less water content. Superplasticizers allow a 30% or more reduction in water content.
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Super Plasticizers RussTech carries a full line of super plasticizing concrete admixtures including ones that contain the new polycarboxylate technology. These high range water reducers have been specifically designed to increase strength while maintaining extended flowability at lower water to cementitious ratios in the concrete mix.
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Super Plasticizer For Dry Mix Mortars - Buy Polycarboxylate - High water reduction - Excellent adaptability with kinds of cement - High flowability in mortar or concrete . Dosage and handling. XJ-1022 should be dry-blended with the other dry ingredients at a minimal dosage of 0.1% to 0.3% by total weight of cementitious components.
- What is a superplasticizer used for?
- Superplasticizers (SPs), also known as high range water reducers, are additives used for making high strength concrete or to place self-compacting concrete. Plasticizers are chemical compounds enabling the production of concrete with approximately 15% less water content. Superplasticizers allow reduction in water content by 30% or more.
- What is the difference between a plasticizer and a superplasticizer?
- Plasticizers are chemical compounds enabling 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 also retard the setting and hardening of concrete.
- Which superplasticizer admixture is better?
- Based on the findings, out of three superplasticizers, PC—based admixture showed a better improvement in strength aspects compared to other mix. Compressive strength of UHPC (a) SNF admixture (b) SMF admixture (c) PC admixture
- What is a polycarboxylate superplasticizer?
- Polycarboxylate superplasticizer stabilizing a colloidal suspension through steric interactions thanks to its lateral chains. Note: the PCE molecules are adsorbed onto positively-charged cement particles (tricalcium aluminate (C3A) mineral phase). The polymers used as plasticizers exhibit surfactant properties.
- What are the different types of superplasticizers?
- According to their dispersing functionality and action mode, one distinguishes two classes of superplasticizers: Steric effects: Polycarboxylates - ether (PCE) synthetic polymers bearing lateral chains (third generation).
- Why do Superplasticizers have split tensile strength compared to compressive strength?
- Pre-cracking is influenced by the elastic shear transfer mechanism whereas post-cracking is due to the combined effects of matrix stress softening and fiber bridging . By assessing the strength in critical aspects of superplasticizers, the results of split tensile strength are parallel to the compressive strength.