COMPATABILITY OF SUPER PLASTICIZERS WITH
Abstract and Figures The current study discusses the flow behavior of super plasticized cement which is specially graded (OPC 53-S) and the properties of high performance concrete which is...
Experimental Investigation on PCE and SNF Type
The optimum dosage of SNF Super Plasticizer is 0.5 and 25% water reduction from the analysis and it is used to determine the strength results of the Perlite added concrete at a replacement percentage of 10, 15, 20 and 25% [ 4] (from Table 4; Fig. 1 ). Table 5 Materials for 1 m3 of concrete SNF SP-perlite specimens Full size table
Current Effects of Naphthalene Based Superplasticizer’s
Addition of SNF by CCC process led to water reduction with increasing SP dosage as shown in Table 4. Results indicate that water cement ratio decreases with increase in SNF dosage as shown in Figure 5. Optimum water reduction in concrete mix due to addition of SNF by CCC is 22.93% at 2% dosage at constant concrete slump of 90mm as shown in
Influence of Plasticizers and Superplasticizers on Chemical
The hydration development of pastes with plasticizers (LS) or super-plasticizers (SNF and SMF), as measured by total chemical shrinkage, seems virtually independent of the water-to-cement ratio in the range 0.30-0.50 during the first 48 hours. Only the hydration for the paste with the lowest w/c may be slightly accelerated immediately after
Effect of Admixtures on Water Uses in a Concrete: A Review
by using the super plasticizer SNF, the use of SNF in the amount of 1-1.2% by weight of concrete has reduced the use of water content by 16 to 17% while maintaining consistency of concrete mixture.
- What is SNF superplasticizer?
- SNF superplasticizer helps to improve the strength and durability of concrete. By reducing the pores and cracks in concrete, reducing water penetration and erosion, the service life of concrete structures can be extended. Sodium naphthalene superplasticizer can also improve the performance of cement.
- Who is SNF Brazil?
- SNF Brazil, a member of The SNF Group, based in France, is the market leader in flocculants, water-soluble polymers, and organic coagulants for the water and sewage treatment industries worldwide.
- What is the optimum dosage of SNF super plasticizer?
- The optimum dosage of SNF Super Plasticizer is 0.5 and 25% water reduction from the analysis and it is used to determine the strength results of the Perlite added concrete at a replacement percentage of 10, 15, 20 and 25% (from Table 4; Fig. 1).
- Why does SNF Based super plasticizer have high fluidity?
- SNF-based super plasticizer possesses high fluidity due to reduced monomer and increased molecular weight. Retardation of the cement hydration depends on the molecular weight where the higher the molecular weight, higher the retardation [65, 66].
- What is the maximum strength of SNF super plasticizer (Sikament 2002 NS)?
- At a dosage of 0.5% of SNF super plasticizer (Sikament 2002 NS) and 25% water reduction, maximum strength achieved. At 0.6% of PCE super plasticizer (C Flow 175 M) and 25% water reduction all the strength parameters reached peak value.
- How many types of superplasticizers are there?
- Superplasticizers are of four types as Sulphonated Naphthalene Formaldehyde (SNF), Sulphonated Melamine Formaldehyde (SMF), Sulphonated Acetone Formaldehyde (SAF), and Polycarboxylate Ether (PC). SNF is obtained from coal tar/petroleum naphthalene where it is converted into sulphonated at high temperature in concentrated sulfuric acid.
