FDN-A low alkali, high concentration and high effi

FDN-A low alkali, high concentration and high efficiency naphthalene water reducing agent

I. product performance characteristics

1, this product is naphthalene sulfonic acid formaldehyde condensate, powder and liquid two kinds, powder brown, liquid brown black. The product is non-toxic, non corrosive and nonflammable, and has no corrosive effect on the reinforcement.

2, this product reduces water rate is high, up to 15-30%, and can significantly improve the strength of concrete at all ages. It can obviously improve and improve all kinds of physical and mechanical properties of concrete, the early strength increases significantly, the latter strength increases obviously, and its compressive, tensile, flexural strength and elastic modulus and other properties have improved accordingly. The same construction conditions and design strength by adding this product, can save cement 10-20%.

3, can significantly improve the workability of concrete mixture, increase slump, significantly reduce the amount of cement.

4, improve the durability of concrete. The product has the characteristics of low chloride ion content, low alkali content and no crystallization at low temperature. The durability indexes such as impermeability, frost resistance and melting resistance of concrete are remarkably improved.

5. It has good adaptability to Portland cement, ordinary portland cement, slag Portland cement and fly ash Portland cement.

6, and aliphatic superplasticizer and amino sulfonate superplasticizer and other superplasticizer using composite water reducing effect, and had significantly improved.

Three scope of application

1, suitable for the preparation of C100 and below all kinds of industrial and civil construction, water conservancy, transportation, ports, municipal engineering and other prefabricated and cast-in-place concrete, reinforced concrete, prestressed concrete.

2. It is applied to national key construction projects such as large reservoirs, large bridges and high-rise buildings with high durability and long term stability.

Four recommended dosage

The general dosage is 0.5-1.2%, the suitable dosage is 0.75%. The user can select the best dosage according to the adaptability of the admixture and cement. The company can provide free of charge of various mixing and mixing technical data for reference.

Five packing

1, water reducing agent used in powdered plastic woven packaging, moisture-proof bag packaging, net weight of each bag is 25, 40, 650, 750 kg; the liquid additive plastic barrels, metal drum, barrel net weight 200kg, 1000kg; also can use chemicals transportation in bulk.

2, transport to rain, moisture, avoid caking. Metal sealed packaging requirements, to prevent the omission.

Six storage conditions and validity

The powder should be stored in a dry, ventilated warehouse. If it is affected by damp, it needs to be grinded to meet the requirement of fineness or be dissolved into liquid. Exceeding the shelf life, the test must be carried out to confirm if it can continue to be used.

This product is valid for 2 years.

Seven usage

1, liquid direct use. Mix with mixture and water into a blender and mix together.

2, powder can be prepared into the required concentration of the solution used, can also be directly added, directly added, should be appropriate to extend the mixing time.

3, before mixing with other types of admixture, the adaptability test should be carried out first.

Eight matters needing attention

1, the user for the first time the use of this product, or cement and other materials change, the need to test the concrete to determine the best amount.

2. When adding liquid products, the amount of water in the water reducing agent should be deducted in the mixture ratio of concrete.

Nine security tips

1, this product is weak alkaline, non-toxic, non corrosive, but not edible, when exposed to the human body, should be flushed with water as soon as possible, causing allergies, should be timely medical treatment.

2, the powder powder is relatively fine, easy to produce dust when using, should wear masks, gloves and other protective equipment.

Ten technical advice

Products have special needs, please contact the company, send professional personnel on-site to provide you with advice and technical services.