Product Data Sheet
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Sikament®-686

HIGH RANGE WATER REDUCING ADMIXTURE

Sikament®-686 is a high range water reducing admixture utilizing Sika's ViscoCrete® polycarboxylate technology. Sikament®-686 meets the requirements of ASTM C494/AASHTO M 194, Type A & F.

Various levels of water reduction can be achieved by adjusting the dosage rate of Sikament®-686.    When used as a high range water reducing admixture, water reduction up to 30% can be obtained. The superplasticizing action of Sikament®-686 allows for the production of high slump/flow concrete with excellent workability that can typically be placed with minimal vibration even at a low water/cementitious ratio.   At lower dosage rates Sikament®-686 is an effective normal water reducing or mid-range water reducing admixture. This application is ideal for use with lean, harsh concrete mixes or concrete containing supplementary cementitious materials.    The combined water reducing and superplasticizing action of Sikament®-686 provides the following benefits:      ▪ Reduced water cement ratios produce more durable, dense concrete, ▪ Increased slump and workability improves efficiency of labor and reduces labor costs, ▪ Improved finishing characteristics, ▪ Increased strengths allow faster structural use of concrete.      Sikament®-686 does not contain intentionally added chlorides.
Product Data Sheet
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Usage

Sikament®-686 is designed for use in ready mix applications whenever high plasticity and increased strengths are required and is effective in concrete containing Portland Limestone Cement (PLC/Type IL) and supplementary cementitious materials. Sikament®-686 can be used for production of high slump/flow concrete as well as for production of conventional slump concrete.

Advantages

Various levels of water reduction can be achieved by adjusting the dosage rate of Sikament®-686.    When used as a high range water reducing admixture, water reduction up to 30% can be obtained. The superplasticizing action of Sikament®-686 allows for the production of high slump/flow concrete with excellent workability that can typically be placed with minimal vibration even at a low water/cementitious ratio.   At lower dosage rates Sikament®-686 is an effective normal water reducing or mid-range water reducing admixture. This application is ideal for use with lean, harsh concrete mixes or concrete containing supplementary cementitious materials.    The combined water reducing and superplasticizing action of Sikament®-686 provides the following benefits:      ▪ Reduced water cement ratios produce more durable, dense concrete, ▪ Increased slump and workability improves efficiency of labor and reduces labor costs, ▪ Improved finishing characteristics, ▪ Increased strengths allow faster structural use of concrete.      Sikament®-686 does not contain intentionally added chlorides.

Packaging

Available in 55-gallon (208-liter) drums, 275-gallon (1040-liter) totes and bulk delivery.

Color

Brown Liquid

Product Details

Sustainability / Certifications / Approvals

ENVIRONMENTAL INFORMATION

Enables a substantially lower carbon footprint through reduction in cementitious materials. Reduces the amount of water required to produce concrete.

   

A Manufacturer Inventory is available for Sikament®-686.

  

For further information, please visit: https://usa.sika.com/en/sustainability.html
Product Information

Shelf Life

Shelf life when stored in original packaging in dry warehouse conditions between 40°F and 80°F (5-27°C) is one year from the date of manufacture.

Storage Conditions

Sikament®-686 should be stored above 40°F (5°C). If frozen, thaw and agitate thoroughly to return to a normal state. Protect from direct sunlight.

Specific gravity

Approx. 1.051

Application

Application Information

Mixing

Measure the required quantity manually or by automated dispenser. Add Sikament®-686 directly into the freshly mixed concrete, or as an integral material in the batching cycle. Do NOT mix with dry cement. Sikament®-686 may be dispensed on-site directly prior to placement. Care must be taken to mix thoroughly. When used in combination with other admixtures dispense each admixture separately into the mix.

  

Compatibility: Sikament®-686 can be used in combination with other Sika admixtures and can be successfully used in mix designs utilizing supplementary cementitious materials. If used in combination with certain Sikament® high range water reducers, it may affect the plastic properties of fresh concrete.
Consumption

Recommended Dosage

The typical dosage rate of Sikament®-686 will vary between 3-12 fl oz / 100 lb. (195-780 mL / 100 kg) of cement or cementitious materials. If maximum water reduction is required, dosage rates up to 18 fl oz / 100 lb. (1170 ml / 100 kg) or above of cement or cementitious materials may be used. Various factors will affect the dosage rates.

  

Trial mixes with the actual materials should be conducted to determine the required dosage for optimum performance.

  

To the extent specialized materials are used, extreme ambient temperatures are encountered, or for other unusual project conditions, dosage rates outside the typical range may be required. For dosage rates outside the typical range, please contact your local Sika representative or the Sika Technical Services Department at 1-800-933-7452.

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