• Naphthalene Sulfonate Formaldehyde  snf, System 1
Naphthalene Sulfonate Formaldehyde  snf,

Naphthalene Sulfonate Formaldehyde snf,

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


Description
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.

Applications
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%.

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

Q:1 square mull retaining wall is equal to how many square stone
Need to block 1.02 square bar, plus loss, budget fixed injury is the case
Q:Do the wall waterproofing can be directly on the brick brush on a layer of waterproof material on it
Can be ah, but in general are rafting spoiled slander diarrhea oblique riveting is done on the concrete, in fact, there are some tiles waterproof role, the late seepage of the words will be outside the brush waterproof paint, are generally used transparent glue, recommended Dragon wall waterproof transparent plastic, before the seepage used to the past few years will not change color, does not affect the decorative effect.
Q:What is called a filler base? Is the cement mortar base hard More
Hard base layer refers to the structure of concrete components, filler material base is the base material of soft materials, such as slag insulation layer of material, cement mortar for different layers should be calculated separately, not hard base. Filling material: the roof of the insulation layer, looking for slope and other soft, light and soft material laying of the structural layer, play insulation, looking for slope, heat and other effects, in doing this leveling layer is called in the filling material The Hard base: such as prefabricated panels, castings and other forming, hard grass, in such a level to do leveling layer on the cement mortar on the hard base.
Q:Glass beads insulation mortar need to do test pieces or raw materials re-examination?
Yes, the need for sampling; generally for the quality of the project will do, but the supplier to the sample, the experiment is a bit disparate. From the goods in a few bags to do the experiment Caixing; 30ox300x30 only heat conduction, 100x100x100 only for compression. Raw material testing, with the conditions of the test block should be, with the conditions of 300x300x30 do thermal conductivity detection, 100x100x100 do compressive strength testing, raw materials, test dry density, compressive strength, thermal conductivity.
Q:Is the cement-based waterproof coating the same as the cement-based infiltration crystal?
A class, the latter is only one of the class
Q:Building floor moisture, please tell me about the building floor moisture, mainly want to understand the capillary phenomenon of building materials and prevention.
Do the construction map is not necessarily quoted atlas, in the design description of the wall" part of the following instructions can be: -0
Q:What is the ratio of the various materials in the C25 concrete to the size of the material? The director did not do the building management, say what to estimate the number of sand, stone, cement, I want to get out of this ratio to count, I quickly fainted. I know that one side of the concrete to use about 2.5T cement, but the proportion of gravel and do not know, I can only tell the boss how many kilograms, how many tons forget. Please know how to teach me, it is best to tell me how to count. Question added: I would like to know how much the volume is, the weight is better than I have. 325 # Ordinary Portland Cement more
Construction with the ratio: Cement: 301 kg (425 # ordinary Portland cement) Sand: 655 kg (in sand) Stone: 1305 kg (5 ~ 40mm gravel) Water 粻 Shan Gang catch the non-stone stem will: 149 Kg The use of the environment for the dry office room slump requirements of 35 ~ 50mm
Q:Promise insulation mortar and hollow glass beads non-polar insulation mortar What is the difference
Products from the selection of special size of the ore, in the electric furnace heating method of expansion, through the temperature and raw material blanking time of the precise control of the product surface melting, stomatal closed, irregular spherical particles, the internal porous cavity structure, The product can be used as a new building materials industry, lightweight aggregate;
Q:Cement mortar label M. M7.. M. C. C25; cement grade C. C. C. C. etc., are used to which stage of the building, at the edge of the fool, Pile, beam and other general use of the number of cement, cement mortar are used where? More
Mortar labels are M. M. M7.. M. M12.. M. M. M. M. M40 several. Mortar according to the use of masonry, plaster, seams several, has nothing to do with the label. It must be said that the blame side of the uncle installed Jiao fat scorpion reckless words, can only be said that the high need to use high mortar strength of the place, and vice versa, really not very good explanation. C. C. C. C30 concrete graded cushion useful mortar is also useful C15 concrete, pile cap and so the best use C30 beam with C25 But this is not to say that this is the same, or depends on the parts you use, Its weight, the required strength and so on
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"

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