sulphonated naphthalene formaldehyde snf plasticizer admixture
sulphonated naphthalene formaldehyde snf plasticizer admixture
sulphonated naphthalene formaldehyde snf plasticizer admixture
sulphonated naphthalene formaldehyde snf plasticizer admixture
sulphonated naphthalene formaldehyde snf plasticizer admixture
different effects of nsf and pce superplasticizer on

Different Effects of NSF and PCE Superplasticizer on

Studies by Naji, Hwang and Khayat found that NSF is more robust than PCE additions, especially in terms of compatibility with Viscosity Enhancing Admixtures (VEA) [ 11, 12 ]. It is noted that some studies [ 13] state that PCE is more stable and less affected by rapid gypsum formation during early hydration.

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sulphonated naphthalene formaldehyde condensate

Sulphonated Naphthalene Formaldehyde Condensate

In the late 1960s PNSs were introduced into the concrete admixtures market in Japan as the first synthetized high-range water-reducing admixture, more commonly called superplasticizer. The first step of PNS synthesis is the sulphonation of naphthalene with sulphuric acid, as shown in Figure 9.3 (a). Figure 9.3.

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compatibility matrix of superplasticizers in ultra-high

Compatibility matrix of superplasticizers in Ultra-High

Superplasticizers are of four types, namely Sulphonated Naphthalene Formaldehyde (SNF), Sulphonated Melamine Formaldehyde (SMF), Sulphonated Acetone Formaldehyde (SAF), and Polycarboxylate Ether (PC).

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admixture technical sheet ¨c ats 2 - fibo intercon

Admixture Technical Sheet ¨C ATS 2 - Fibo Intercon

When superplasticising admixtures are used to increase workability at equal water content, the compressive strength is generally similar to that of the equivalent plain concrete mix. Typical results for a 330 Kg/m3 cement content mix with CEM I cement and a Naphthalene and a PCE based admixture are shown below: Control.

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sulphonated naphthalene formaldehyde (snf) - kingsun chemicals

Sulphonated Naphthalene Formaldehyde (SNF) - Kingsun Chemicals

Sulphonated naphthalene formaldehyde, also known as naphthalene superplasticizer or SNF superplasticizer, is a high-range water reducing admixture for concrete. It has the advantages of high water reduction rate, neither retardation nor air entrainment, and strong adaptability.

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admixture optimization in concrete using superplasticizers

Admixture Optimization in Concrete Using Superplasticizers

There are four main types of super-plasticizers widely used in the concrete industry: sulphonated melamine formaldehyde condensate (SMF), sulphonated naphthalene formaldehyde condensate (SNF), modified lignosulphonates (MLS) and lignosulphonate (LS) [ 4, 5, 6 ].

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a review on the effects of chemical admixtures on alkali

A review on the effects of chemical admixtures on alkali

Based on the literature review on the effect of chemical admixtures on the workability, setting time and compressive strength of AAC, the following conclusions are drawn. Polycarboxylic ether (PCE), Sulphonated naphthalene formaldehyde (SNF), Lignosulphonates (LS) and Air entraining admixtures (AEA) are found to be effective in alkali activated.

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the addition of sulphonated naphthalene formaldehyde (SNF) admixtures increases the workability and shrinkage but causes a reduction in compressive strength [1]. Nematollahi and Sanjayan studied the effect of different superplasticizers and activator combinations on workability and strength of fly ash based geopolymer [2].

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iop conference series: materials science and engineering

IOP Conference Series: Materials Science and Engineering

for PPC from rheological point of view. For SNF based plasticizers the optimum dosage is 0.85%for OPC and 0.8% for PPC. Similarly for LS based SP for saturated dosage OPC and PPC are 0.9% and 0.85%. Flow time decreases with increase in dosage of super plasticizers and the saturation dosage varies with different types of chemical admixtures used.

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and compatibility of sulphonated naphthalene formaldehyde (SNF) and poly carboxylate ether (PCE) superplasticizers with cement paste prepared from Ordinary Portland Cement (OPC) 53 grade, Portland Pozzolana Cement (PPC) and Slag cement (PSC) for different water-binder (w/b) ratios are analysed using the marsh cone test and mini slump test.

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