sulphonated naphthalene formaldehyde admixture

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Quick Details

  • Classification:Chemical Auxiliary Agent

  • CAS No.:29321-75-3

  • Place of Origin: China (Mainland)

  • Appearance:Light brown powder

  • Solid content:92% Min

  • Sodium Sulphate content:5%,10%,18%

  • PH Value:7-9

  • Water-reducing ratio:18%-28%

Packaging & Delivery

Packaging Details:25kgs per bag,40kgs per bag and 750kgs per UV bulk bag.
Delivery Detail:10days after sales confirmed

Specifications

We specialize in manufacturing FDN-A,B,C of sulphonated naphthalene formaldehyde.Our production capacity is 300,000 tons/year.

SULPHONATED NAPHTHALENE FORMALDEHYDE

1.Product General

FDN-A ,FDN-B,AND FDN-C Superplasticizer is a dry powdered admixture. It is produced through such a process: 1) sulphonating refined naphthalene with sulfuric acid, 2) condensing with formaldehyde, 3) neutralization, and 4) filtering. It conforms to GB8076-1997 and is mainly used for various high-strength concrete, steel concrete, prestressed concrete, large formwork concrete, slipforming concrete etc.

2.Standard Quality Targets:

FDN-A

item

target

item

target

appearance

Brownish powder

PH    Value

7--9

Solid content

≥92%

Neat cement Grout flowability

≥250 mm

Na2SO4

5% MAX.

fineness

0.315mm Mesh<15

Chloride

0.3%MAX

Surface Tension

(71±1)×10-3N/ m

FDN-B

item

target

item

target

appearance

Brownish powder

PH    Value

7--9

Solid content

≥92%

Neat cement Grout flowability

≥240 mm

Na2So4

10%MAX.

fineness

0.315mm Mesh<15

Chloride

0.4%MAX

Surface Tension

(71±1)×10-3N/ m

FDN-C

item

target

item

target

appearance

Brownish powder

PH    Value

7--9

Solid content

≥92%

Neat cement Grout flowability

≥230 mm

Na2So4

20%MAX

fineness

0.315mm Mesh<15

Chloride

0.5%MAX.

Surface Tension

(71±1)×10-3N/ m

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