Superplasticizers
High-level water reduction products can be used in high strength concrete, pumpability, self-consolidating concrete, low permeability, low water absorption concrete and low shrinkage application.
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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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.
Long- and short-term stability of plasticized poly(lactic
The aim of this study is to investigate the property stability of plasticized PLA for a time period of 2 years starting from the production. We have used three grades of PEG with different molecular weights such as 400, 8000, and 35,000 g/mol, namely PEG-400, PEG-8000, and PEG-35,000 in various concentrations such as 0, 5, 10, 15, and 20 wt%.
- 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
- Which superplasticizer is the most efficient?
- It has been shown that Poly-carboxylic ether type (PCE) superplasticizers are the most efficient in their job. Souza et al., showed that these PCEs are a new type of superplasticizer with a great water-reducing capacity allowing a w/c ratio as minimum as 0.20.
- Which superplasticizer has a negative zeta potential?
- Generally, superplasticizers with higher molecular weight adsorbed less resulting in negative zeta potential and vice versa . SNF-based super plasticizer possesses high fluidity due to reduced monomer and increased molecular weight.
- 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.
- Are superplasticizers good for concrete?
- Superplasticizers, owing to the reduction in the water–cement ratio, decrease the penetration of chlorides into concretes and also improve the resistance of concrete against salts. For the same reason, the resistance to sulphate attack is also increased.
- 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.
