Sodium Naphthalene Formaldehyde SNF-A Na2SO4 content 5%

Naphthalene series superplasticizer is a non - entrained superplasticizer synthesized by chemical industry. Chemical name naphthalene sulfonate formaldehyde condensates, it has a strong dispersion of cement particles.

For the preparation of flow state concrete, cast-in-place concrete and prefabricated components with early strength and high strength requirements have a good use effect, which can comprehensively improve and improve various performance of concrete. It is widely used in roads, Bridges, DAMS, ports, tunnels, electric power, water conservancy and civil engineering, steam maintenance and natural conservation prefabricated components.

performance characteristics:

1. When the concrete strength and slump are basically the same, the cement dosage can be reduced by 10-25%.

2. When the water-cement ratio is unchanged, the initial slump of concrete is increased by more than 10cm, and the water reduction rate can reach 15-25%.

3. It has significant early strength and enhancement effect on concrete, and its strength increases by 20-60%.

4. Improve the workability of concrete and comprehensively improve the physical and mechanical properties of concrete.

5. Good adaptability to all kinds of cement and good compatibility with other types of concrete admixtures.

6, Especially suitable for use in the following concrete projects: fluid concrete, plasticized concrete, steam curing concrete, impervious concrete, waterproof concrete, natural curing precast concrete, reinforced and prestressed reinforced concrete, high strength and ultra-high strength concrete.

7, Concrete slump when the loss is larger, half an hour slump loss of nearly 40%.

Dosage range:

Powder: 0.75-1.5%; Liquid :1.5-2.5%.

Note:

1, the use of porous aggregate time to add water mixing, and then add water reducing agent.

2, when slump is large, should pay attention to the vibration time is not too long, in order to prevent bleeding and stratification.

Naphthalene superplasticizers can be divided into high concentration products (Na2SO4 content <3%), medium concentration products (Na2SO4 content 3%-10%) and low concentration products (Na2SO4 content >10%) according to the content of Na2SO4. Most naphthalene superplasticizer synthesis plants have the ability to control the content of Na2SO4 below 3%, and some advanced enterprises can even control the content of NA2SO4 below 0.4%.

Naphthalene series of water reducing agent is the largest in our country production, the most widely used highly efficient water reducing agent (accounting for more than 70% of the amount of water reducing agent), which is characterized by high water reduction rate (15% ~ 25%), no air, little effect on the setting time, relatively good adaptability with cement, can be used with other various additives compound, the price is also relatively cheap. Naphthalene superplasticizer is often used to prepare concrete with high mobility, high strength and high performance. The slump loss of concrete with naphthalene superplasticizer is faster.

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