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XRT-SNF
xinrui-te
382440
High Range Water Reducer SNF PNS FDN NSF Sodium Naphthalene Sulfonate Formaldehyde with Low Price
------XRT-SNF
Sodium Naphthalene Sulphonate water-reducing agent is a synthetic powder formulated from β-sulphonate formaldehyde condensate and reactive polymers. It features high-range water reduction, set-retarding properties, and excellent strength-enhancing performance. With a sodium sulfate content of less than 10%, it is ideal for medium-to-high strength concrete requiring significant water reduction.
◆ Dosage
Blending dosage: 0.5%–1.0% (by weight of cement), with a recommended dosage of 0.6%.
Adjust dosage based on specific mix design and performance requirements.
◆ Solution Preparation
Prepare aqueous solutions as needed, following standard mixing procedures for concrete admixtures.
◆ Application Methods
The powder agent can be used directly.
Alternatively, add the agent to the mix followed by water addition, maintaining a water-to-cement ratio of 60%
(or as specified in the mix design).
INDEXITEM | SNF-A | SNF-B | SNF-C |
Appearance | Light brown powder | Light brown powder | Light brown powder |
Solid Content | ≥92 | ≥92 | ≥92 |
Sodium sulphate Content | 5% | 10% | <18% |
Chloride Content | 0.3% | 0.4% | 0.5% |
PH Value | 7-9 | 7-9 | 7-9 |
Net Starch Fluidity | ≥250 mm | ≥240 mm | ≥230 mm |
Surface Tension | 70±1×10-3N/M | 70±1×10-3N/M | 70±1×10-3N/M |
Parameters&accepttance criteria(For reference)
A.SNF-A
Parameters | Criteria | Actual Results | Parammeters | Criteria | Actual Results | ||
Water reduction,Min % | ≥14 | 18-28 | Compression strength,% | 1d | ≥140 | 170 | |
Water Penetration,Max % | ≤90 | 79 | 3d | ≥130 | 160 | ||
Air Content,% | ≤3.0 | 1.6 | 7d | ≥125 | 145 | ||
Temporal distribution for setting(min) | Initial setting time | -90 ~ +120 | -90 ~ +120 | 28d | ≥120 | 135 | |
Terminal setting time | Shrinkage,% | 28d | ≤135 | 82 | |||
Corrosion to steel bars | None | None | |||||
Note:Standard Blend Dosage:0.75%(as cement amount) | |||||||
B.SNF-B
Parameters | Criteria | Actual Results | Parammeters | Criteria | Actual Results | ||
Water reduction,Min % | ≥14 | 17-25 | Compression strength,% | 1d | ≥140 | 165 | |
Water Penetration,Max % | ≤90 | 80 | 3d | ≥130 | 155 | ||
Air Content,% | ≤3.0 | 1.6 | 7d | ≥125 | 140 | ||
Temporal distribution for setting(min) | Initial setting time | -90 ~ +120 | -90 ~ +120 | 28d | ≥120 | 130 | |
Terminal setting time | Shrinkage,% | 28d | ≤135 | 85 | |||
Corrosion to steel bars | None | None | |||||
Note:Standard Blend Dosage:0.75%(as cement amount) | |||||||
C.SNF-C
Parameters | Criteria | Actual Results | Parammeters | Criteria | Actual Results | ||
Water reduction,Min % | ≥14 | 16-22 | Compression strength,% | 1d | ≥140 | 160 | |
Water Penetration,Max % | ≤90 | 85 | 3d | ≥130 | 150 | ||
Air Content,% | ≤3.0 | 2.0 | 7d | ≥125 | 140 | ||
Temporal distribution for setting(min) | Initial setting time | -90 ~ +120 | -90 ~ +120 | 28d | ≥120 | 125 | |
Terminal setting time | Shrinkage,% | 28d | ≤135 | 88 | |||
Corrosion to steel bars | None | None | |||||
Note:Standard Blend Dosage:0.75%(as cement amount) | |||||||
◆ Curing Processes
Widely used in self-cured and vapor-cured concrete formulations, it
demonstrates outstanding early-stage performance. This
significantly improves modulus and site utilization efficiency, even
eliminating the need for vapor curing during peak summer heat.
Statistically, 40–60 metric tons of coal can be saved per metric ton of
this agent consumed.
◆ Concrete Formulations
Suitable for preparing early-strength, high-strength, high anti-filtration, self-sealing, and pumpable concrete.
◆ Construction Scenarios
Extensively applied in pre-cast and ready-mixed concrete, reinforced concrete, and pre-stressed reinforced concrete
for keyprojects, including:
Dam and port construction
Road building and urban planning projects
Residential and commercial constructions
◆ Cement Compatibility
A. Compatible with various cement types, such as:
Portland cement
Ordinary Portland cement
Portland slag cement
Fly-ash cement
Portland pozzolanic cement
B. Suitable for preparation of early-strength, high-strength, high-anti-filtration and self-sealing& pumpable concrete.
C. Widely used in pre-cast & ready-mixed concrete, armored concrete and pre-stressed reinforced concrete in key
construction projects such as dam and port construction, road building & town planning projects and dwelling
erections etc.
D. Compatible with Portland cement, normal Portland cement, Portland slag cement, fly-ash cement and Portland
pozzolanic cement etc.
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