Model NO.: FDN Usage: Water Treatment Chemicals, Rubber Auxiliary Agents, Plastic Auxiliary Agents, Coating Auxiliary Agents, Textile Auxiliary Agents, Paper Chemicals, Surfactants, Leather Auxiliary Agents, Electronics Chemicals, Construction Chemicals Name: Sodium Naphthalene Sulfonate Formaldehyde pH: 7-9 Trademark: YUANSHENG CHEMICAL Origin: Shandong, China Appearance: Powder Color: Brown Solid Content: >93% Colour: Brown Powder Specification: SGS HS Code: 3824401000
Brown Powder Formaldehyde-Naphthalenesulfonic Acid (FDN)
1 . It is a chemically synathesized non-air-entrained superplasticizer .
2 . also called naphthalene sulfonate formaldehyde condensate .
3 . it has strong dispersion effect on cement particles and good use effect of preparing super flowing concrete as well as cast-in-situ concrete .
4 .precast members with early strength and high strength requirements
5 . comprehensively improve various properties of the concrete .
|items&indicator ||FDN-A ||FDN-B ||FDN-C |
|Appearance || brown powder |
|solid content || >93% |
|sodium sulfate ||<5% ||<10% ||<18% |
|chloride ||<0.3% ||<0.4% ||<0.5% |
|ph || 7-9 |
|static slurry fluidity ||>250mm ||>240mm ||>.230mm |
1. Reduce 10 to 25 percent of cement content when the strength and the slump of the concrete are basically same.
2. When the water cement ratio is constant, it improves the initial slump of the concrete by more than 10cm, and the water-reducing ratio can reach 15 to 25 percent.
3. Has remarkable early strength and strengthening effects on the concrete, and improve the strength by 20 to 60 percent.
4. Improve the workability of the concrete and comprehensively improve the physical and chemical properties of the concrete.
5. Adapt to various cements well, and is well compatible with other types of 0s.
6. Particularly applicable to the following concrete projects: flowing concrete, plasticized concrete, steam-cured concrete, impermeable concrete, waterproof concrete, naturally-cured precast member concrete, reinforcing steel bars and prestressed reinforced concrete, high-strength and ultra-high-strength concrete.
Mixing Amount Range (Recommended):
|Test Items ||Indicators ||SNF-A ||SNF-B ||SNF-C |
|First class ||Standard |
|Water reducing rate (%) ||≥20 ||≥18 ||≥22 ||≥20.1 ||≥20 |
|Bleeding rate (%) ||≤90 ||≤95 ||79 ||80 ||85 |
|Air content (%) ||≤3.0 ||≤4.0 ||2.0 ||2.0 ||2.0 |
|Time difference of coagulation |
|Initial ||-90-120 ||+22 ||+22 ||+22 |
|Final ||+16 ||+16 ||+16 |
|Compressive strength rate |
|1 day ||>140 ||>130 ||156 ||156 ||156 |
|3 days ||>130 ||>120 ||152 ||152 ||152 |
|7 days ||>125 ||>115 ||146 ||146 ||146 |
|28 days ||>120 ||>110 ||138 ||138 ||138 |
|Rate of shrinkage (%) ||90 days ||<135 ||82 ||82 ||82 |
|Rustiness corrosion on concrete iron ||No ||No ||No ||No |
Water reducer can be used in three ways:
1. For a given workability, they can reduce the water demand, thus resulting in higher strength and durability.
2. For a given w/c and strength, they can increase the workability.
3. For a given w/c, strength and workability, the quantity of cement can be reduced.
Service we can provide:
1. Mixed container, we can mix different items in one container.
2. Quality control, before shipment, free sample for test, after shipment, keep sample for 3 years.
3. Prompt shipment with professional documents.
4. Packing as your request, with photo before shipment.
40kg/bag, outer woven bags with inner plastic lining.
Kept in dry and ventilating place, prevent from rain and moisture when storage
if agglomerated, please crush and make it into solution, and its effect will be the same.
Non-toxic, harmless, non-inflammable and non-explosive chemicals
it can be transported in truck and train.
why choose us :
1 . 7 years experence.
2 . we have our own R&D department
3 . 3000 tons/month production;
4 . free samples are available;
5 . OEM and special demend can be satisfied.
6. quick response .
So dont be hesitate ,click here to send an inquiry.
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、Dispersing Agent. If these products fail to match your need, please contact us and we would like to provide relevant information.
Product Categories : Concrete Admixture