SULPHONATED NAPHTHALENE FORMALDEHYDE

A superplasticizer that is often used in the construction industry. It is an admixture that helps reduce water content in the concrete mixture without diminishing its workability or strength.

Unlike other superplasticizers, SNF does not inhibit the flow of the cement mixture. Rather, it helps reduce the water content of the mix and improve its slump ratio.

SNF Powder is a key ingredient for the construction industry. It is a high-quality and efficient admixture that can help create stronger and safer buildings.

It is a versatile ingredient that has many uses in the industry. It is used in the construction, leather, tanning, textile and oil industries.

Polycarboxylate Sodium Naphthalene Sulfonate Formaldehyde (PCE)

PCE is a new generation of high-performance superplasticizer. It features a comb-shaped molecular structure, low dosage, high water reducing rate, good air void content and other advantages.

When compared to SNF, PCE has more favorable decrease patterns on thixotropy and dynamic yield stress of fresh cement pastes. The thixotropic index of PCE hits bottom low values at lower addition amounts than the dynamic yield stress did for NSF.

The results of the present study demonstrate that PCE is more suitable for preparing concrete with low water-cement ratio, especially when the w/c value is less than 1%. It also has better compatibility with VEA such as nanoclay.

Besides, SNF based admixtures increase the total air content of an air-entrained flowing concrete. The effect is a small one at low dosages and increases when added with MLS-based admixtures.