Naphthalene Sulfonate Formaldehyde snf,

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Product Description:

Naphthalene Sulfonate Formaldehyde (SNF)
(Na2SO4 ≤ 5%)

SNF is a high concentrate naphthalene-based superplasticizer, also named Naphthalene Sulfonate Formaldehyde Condensate (NSF), SNF, PNS, etc.. FDN contains no chloride. It conforms to the requirements of chemical admixture specifications for concrete: ASTM C 494, Type F; ASTM C 1017.

1. SNF is suitable to make autotrophic concrete, steam curing concrete, steel concrete, prestress concrete, etc.
2. SNF is compatible with Portland Cement, Portland Slag Cement, Fly-ash Cement, Portland Pozzolanic Cement, etc.
3. SNF can be used to make C80 concrete with slump loss between 50mm and 70mm, or C60 concrete with that between 180mm and 220mm.
4. SNF can be used as a raw material to compound accelerator, retarder, anti-freezing agent and pumping aid to satisfy requirements from different construction projects, techniques, materials and environmental temperatures.

Features and Benefits
1. Non-toxic, non-irritating and no corrosion to steel bars.
2. High water reducing rate: over 25%.
3. Strengthening ability.
4. Improving concrete durability and impermeability.
5. Appropriate setting time.
6. Low sodium sulfate content.
7. No crystallization in winter.
8. Good compatibility with various types of cement.

Uses and Dosages
It can be added during mix or after mix, while the latter approach is preferential.
Dosage normally ranges from 0.4% to 1.0% of the weight of cementitious material, while the recommended dosage is 0.5%.

It’s packed in woven fabric bag with plastic liner. Net weight: 25kg.

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Q:Waterproof coating type Ⅰ and Ⅱ What is the difference between ah?
A lot of waterproof materials, including coatings and coils, are divided into type I and type II or even type III, mainly physical properties of the distinction between the distinction that some of the mechanical properties of the level, and some only show the performance difference, for different Waterproof selection of parts. Such as "JS" waterproof coating type Ⅰ strength and elongation were 1.2MPa / 200%, Ⅱ type were 1.8MPa / 80%, one is low strength and high extension, the other is high strength and low extension, suitable for different waterproof parts The Another example is the infiltration of crystalline waterproof material Ⅰ and Ⅱ type that impermeability level, Ⅱ type impermeability better. Also used in class I and class II, this distinction is mainly to indicate the material morphology or material composition of the different, such as polymer cement waterproof mortar Class I and II said emulsion type and dry powder type. What is the specific performance of the waterproof coating may look at the corresponding waterproof material standards, such as polyurethane waterproof coating is GBT "polyurethane waterproof coating"
Q:I would like to check, I would like to ask C25, C20 with more than how to check, there are mortar M5 cement, mixed mortar how to check, the need for any material.
Concrete with the ratio of the required materials are cement, sand, gravel, the amount of words can be consulted before the inspection unit is the most secure, generally need to be half sacks such as; and these materials also need to pass the test, need to fill in the inspection Of the information there are slump, structural parts, and design strength, the other is no special place, mainly according to the requirements of the drawings; specific consult the detection unit
Q:High-rise residential wall with brick (no burning hollow brick and filling blocks) and external wall insulation materials (polystyrene board and insulation mortar) which is better?
2 What kind of insulation room according to the state of the insulation requirements and materials can meet the requirements to meet Polystyrene board thin plaster can engage in energy-saving 65% or even higher requirements, and most of the foreign use, so more popular In addition, you said that the insulation mortar should be a kind of glass beads insulation mortar itself after the construction of the insulation effect, the mortar can achieve the effect of insulation is limited, if you meet the higher insulation requirements are either not applicable or Will be too thick construction can be But the efficiency of insulation, far less than the polystyrene foam insulation board For the external walls of the insulation, of course, the more insulation layer is more conducive to energy conservation, if conditions permit, do naturally good Generally speaking, the design will only design one of them, very few buildings inside and outside the building insulation are done inside and outside Pouring the walls have to build a layer of interface mortar, which can not be considered leveling, so that the basic can be the main work, and that is rough If the leveling is better
Q:Why is the waterproof material divided into rigid and flexible? Which is better than that?
The material is divided into rigid and flexible according to its characteristics. Rigid waterproof material generally refers to the cement mortar, in its formation of waterproof layer, has a high resistance to pressure, impermeability, but does not have the extension, resistance to structural elongation change ability is not high. The flexible material has good elasticity and plasticity, and the extensibility can adapt to the slight deformation of the structure. See where you use, and if used in home decoration, should be flexible waterproof material as the main material of the construction.
Q:JS waterproof paint how, advantages and disadvantages of what are each?
Polymeric waterproof coating abbreviation (JS waterproof coating) is a rigid and flexible Tongji two-component waterproof material, such materials environmental protection, and the base surface of a strong bond, fast drying, harmless color products. Home waterproof paint preferred beauty Paint, paint, paint, paint, paint, paint, paint, paint, paint, paint, paint, paint, paint, paint, paint, paint, paint, paint, paint, paint, paint, paint, paint, paint, paint, paint,
Q:Decoration in the ground leveling 1 square meters need how much cement river sand
Decoration of cement and yellow sand ratio of 1: . according to a bag of cement 50 pounds to calculate a bag of cement can shop 2 square meters of floor tiles that shop 1 ㎡ to 25 pounds of cement, according to the ratio of 1: 3 to calculate the need Yellow sand 75 pounds. So paste 1 ㎡ tiles need 100 pounds of sand cement. Tile is used 325 tons of cement, strength grade 32.. initial setting time in 1 to 3 hours, and the final condensate for 4 to 6 hours.
Q:Bags of dry powder polymer cracking mortar a cubic of the number of kilograms
"EVB insulation mortar" EVB particles as a dry mix of lightweight aggregate, through the scientific production process in the high-quality cement, fiber polymers and modifiers, the formation of one-component inorganic thermal insulation fire dry mortar Patent number
Q:What is the proportion of the various materials in the C25 concrete
About 1625 kg; sand: 566kg; stone: 1261kg with the ratio of: 0.44: . the amount of cement, : 1.42: 3.17 you say no, 1 side of the concrete which used 2.5t cement, should be the total weight of about 1 square concrete is about 2.4t or so, the proportion is above I said, according to each party for 2400KG concrete preparation.
Q:Rural brick and concrete room can do external wall insulation, what materials and practices inexpensive?
External thermal insulation materials are only affordable with rock wool board
Q:Our side of the supervision to be autoclaved aerated concrete block masonry mortar every time into the ton, do mortar raw material testing, ask what is necessary,
The key to negotiate with the supervision unit

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