Product Data Sheet
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Sika® Plastocrete®-250

WATER REDUCING ADMIXTURE

Sika® Plastocrete®-250 is a lignin-free, normal range water reducing admixture. Sika® Plastocrete®-250 meets the requirements of ASTM C494/AASHTO M 194, Type A, B, & D.

Various levels of water reduction can be achieved by adjusting the dosage rate of Sika® Plastocrete®-250.      At lower dosage rates Sika® Plastocrete®-250 provides mild water reduction and workability. At higher dosage rates Sika® Plastocrete®-250 provides moderate water reduction up to 10% and workability retention with extended set times.
    Sika® Plastocrete®-250 allows for the production of concrete that can typically be placed with reduced vibration. Sika® Plastocrete®-250 is effective for use with lean, harsh concrete mixes or concrete containing supplementary cementitious materials.    Sika® Plastocrete®-250 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.    Sika® Plastocrete®-250 does not contain intentionally added chlorides.
Product Data Sheet
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Usage

Sika® Plastocrete®-250 can be used in all types of conventional ready mix concrete applications and is effective in concrete containing Portland Limestone Cement (PLC/Type IL) and supplementary cementitious materials.

Advantages

Various levels of water reduction can be achieved by adjusting the dosage rate of Sika® Plastocrete®-250.      At lower dosage rates Sika® Plastocrete®-250 provides mild water reduction and workability. At higher dosage rates Sika® Plastocrete®-250 provides moderate water reduction up to 10% and workability retention with extended set times.
    Sika® Plastocrete®-250 allows for the production of concrete that can typically be placed with reduced vibration. Sika® Plastocrete®-250 is effective for use with lean, harsh concrete mixes or concrete containing supplementary cementitious materials.    Sika® Plastocrete®-250 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.    Sika® Plastocrete®-250 does not contain intentionally added chlorides.

Packaging

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

Color

Dark Brown - Black Liquid

Product Details

Sustainability / Certifications / Approvals

ENVIRONMENTAL INFORMATION

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

  

A Manufacturer Inventory is available for Sika® Plastocrete®-250.

  

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

Sika® Plastocrete®-250 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. 1.062

Application

Application Information

Mixing

Measure the required quantity manually or by automated dispenser. Add Sika® Plastocrete®-250 directly into the freshly mixed concrete, or as an integral material in the batching cycle. Do NOT mix with dry cement. Sika® Plastocrete®-250 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: Sika® Plastocrete®-250 can be used in combination with other Sika admixtures and can be successfully used in mix designs utilizing supplementary cementitious materials.
Consumption

Recommended Dosage

The typical dosage rate of Sika® Plastocrete®-250 will vary between 2-8 fl oz / 100 lb. (130-520 mL / 100 kg) of cement or cementitious materials. At higher dosage rates delayed setting times will occur. 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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