Sulfonated Naphthalene Formaldehyde SNF NSF PNS FDN HS 382440100

Sulfonated Naphthalene Formaldehyde SNF/ NSF/PNS/FDN HS 382440100

Sulfonated Naphthalene Formaldehyde Condensate Concrete Admixture Product Description:

JF SODIUM NAPHTHALENE SULFONATE POWDER (SNF-C)

Water reducing agent is also called plasticizer or dispersant. Adding an appropriate amount of water-reducing agent when mixing the concrete can make the cement particles evenly dispersed, and at the same time release the water wrapped by the cement particles, which can significantly reduce the water consumption of the concrete.

Naphthalene-based water-reducing agent is the most produced and most widely used high-efficiency water-reducing agent in my country (accounting for more than 70% of the amount of water-reducing agent). It is characterized by a high water-reducing rate (15%-25%) and no air-entrainment. , Has little effect on setting time, has relatively good adaptability to cement, can be used in combination with various other additives, and the price is relatively cheap. Naphthalene-based water reducing agents are often used to formulate high-fluidity, high-strength, and high-performance concrete. The slump loss of concrete mixed with naphthalene-based water-reducing agent is faster. In addition, the adaptability of naphthalene-based water-reducing agents to certain cements needs to be improved.

Sulfonated Naphthalene Formaldehyde Performance characteristics:

1. When the concrete strength and slump are basically the same, the amount of cement can be reduced by 10-25%.
2. When the water-cement ratio remains unchanged, the initial slump of the concrete is increased by more than 10cm, and the water reduction rate can reach 15-25%.
3. It has significant early strength and strengthening effect on concrete, and its strength increase range is 20-60%.
4. Improve the workability of concrete and comprehensively improve the physical and mechanical properties of concrete.
5. Good adaptability to various cements and good compatibility with other types of concrete admixtures.
6. Especially suitable for use in the following concrete projects: liquid concrete, plasticized concrete, steam-cured concrete, impermeable concrete, waterproof concrete, natural-curing precast concrete, steel bar and prestressed reinforced concrete, high-strength ultra-high-strength concrete .
7. The slump loss of concrete over time is relatively large, and the slump loss in half an hour is nearly 40%.

Sulfonated Naphthalene Formaldehyde Precautions:

1. When using porous aggregate, it is advisable to add water and stir first, and then add water reducing agent.
2. When the slump is large, the vibrating time should not be too long to prevent bleeding and stratification.
Naphthalene-based superplasticizers can be divided into high-concentration products (Na2SO4 content <3%), medium-concentration products (Na2SO4 content 3%-10%) and low-concentration products (Na2SO4) according to the level of Na2SO4 content in their products. Content>10%). Most naphthalene-based superplasticizer synthesis plants have the ability to control the content of Na2SO4 below 3%, and some advanced companies can even control it below 0.4%.