Sikament® LN
A highly effective water reducing agent and superplasticizer for promoting accelerated hardening with high workability. Complies with A.S.T.M. C 494-92 Type F.
- Up to 20 % reduction of water will produce 40 % increase in 28 days compressive strength.
- Increased watertightness.
Usage
Sikament® LN is a high range water reducing concrete admixture specially formulated for the precast concrete element industry; to meet the demand of early removal of formwork due to the early strength gain. Enables concrete placing equipment to be used to its full capacity. Effective throughout dosage range.Advantages
Sikament® LN provides the following properties :- Up to 20 % reduction of water will produce 40 % increase in 28 days compressive strength.
- Increased watertightness.
Packaging
240 kg drum
Bulk delivery
Colour
Liquid / Dark brown
Product Details
Composition
Modified Naphthalene Formaldehyde Sulfonate
Shelf life
12 months from date of production if stored properly in undamaged unopened, original sealed container.
Storage conditions
Store in dry conditions at temperatures between +5 °C and +30 °C. Protect from direct sunlight and frost.
Density
at +20 °C | 1.22 ± 0.01 kg/L |
Concreting Guidance
The standard rules of good concreting practice, concerning production and placing, are to be followed.
Laboratory trials before concreting on site are strongly recommended when using a new mix design or producing new concrete components.
Fresh concrete must be cured properly and as early as possible.
Application
Compatibility
Sikament® LN may be combined with the following products:
- Plastiment® P121R
- Plastiment® VZ
- Sika® Fume
- SikaFibre®
Do not use sikament series combined with viscocrete / viscoflow series.
To produce flowing and / or self-compacting concrete, special concrete mix design is required.
Pre-trials are recommended and mandatory if combinations with the above products are required.
Please consult to our Technical Service Department.
DISPENSING
Sikament® LN can be added to the gauging water prior to its addition to the dry aggregates or separately to the freshly mixed concrete (on the batching plant or on site into the truck mixer) where added to truck mixer on site, further mixing for three to five minutes should be carried out.
Recommended Dosage
Sikament® LN can be used at the dose rate 0.30 % - 2.0 % by total weight of cementitious material depending on requirements concerning workability and strength.
It is recommended that trial mixes be conducted to determine the exact dosage rate required.
Note :
- Typical dosage rate for use with silica sand is 0.30 % - 1.20 % by weight of cementitious material.
- Typical dosage rate for use with combination of manufactured sand / volcanic sand is 0.4 % - 2.0 % by weight of cementitious material.
For more specific requirements, advice is available from our Technical Service Department to determine the usage rate for optimum results.