Naphthalene Superplasticizer Liquid (BNL) | SNF Concrete Admixture

Naphthalene Superplasticizer Liquid

Naphthalene Superplasticizer Liquid (BNL) is a high-performance concrete admixture featuring over 20% water reduction and ≥ 40% solid content. Formulated for excellent pumpability and temperature-stable slump retention, it significantly accelerates both early and long-term strength. It is ideal for steam-cured precast elements (such as pipe piles), marine engineering, and large-scale ready-mix concrete operations.

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Product Description

Appearance:

Dark brown liquid.

Specifications:

Item	Technical Standard
Solid Content (%)	≥ 40%
Water Reducing Ratio (%)	≥ 20%
Sodium Sulfate Content (%)	6.5% – 7.0%
Chloride Ion Content (%)	≤ 0.25%

Applications:

Concrete Projects: Excellent for ready-mix, precast, reinforced, prestressed, and high-strength steam-cured concrete (such as concrete pipe piles).

Construction Types: Widely applicable to industrial and civil buildings, transportation, water conservancy, municipal engineering, and marine/harbor projects.

Performance: Delivers a water reduction rate of over 20% with exceptional slump retention across varying ambient temperatures. It reduces bleeding, prevents segregation, lowers pumping resistance, and dramatically accelerates strength development (improving 7d/28d/56d strength by over 35% and 90d strength by over 30% compared to reference concrete).

Usage Instructions:

Mixing Method: Can be introduced directly into the concrete mixer or pre-dissolved into a functional liquid solution. Ensure precise weighing and allow for thorough, uniform mixing within the batch.

Dosage: The recommended dosage is 1.0% – 2.0% (calculated based on the standard 40% solid content by weight of total cementitious materials). If blending with different solid concentrations, adjust the conversion ratio accordingly based on trial mix results.

Compatibility: Highly versatile and stable with various cement grades and active mineral admixtures. It coordinates perfectly with air-entraining and expansion agents to create complementary performance synergies.

Safety Handling: The product is non-toxic, non-flammable, non-corrosive, and poses zero corrosion risks to steel reinforcement. Wear appropriate personal protective equipment during handling to avoid direct skin or eye contact.

Packaging & Storage:

Standard Packaging: 200kg plastic drums, 1000kg (1MT) IBC tanks, or bulk tanker transport.

Storage Recommendations: Store in a cool, dry, and shaded environment. Keep containers tightly sealed. If a container seal is found compromised before use, re-test the solid content and mechanical performance before application.

Shelf Life: 6 months. It can still be utilized beyond this period provided that lab re-testing validates the quality remains unchanged.

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