SikaPlast®-500
MID-RANGE, WATER-REDUCING ADMIXTURE FOR CONCRETE
SikaPlast®-500 is a lignin-based mid range water reducing admixture.SikaPlast®-500 meets the requirements of ASTM C494/AASHTO M 194, Type A & F.
that can typically be placed with minimal vibration even at a low water/cementitious ratio. The combined water reducing and superplasticizing action in all three cases provide the following benefits:
- Higher early and ultimate strengths.
- Reduced water cement ratios produce more durable dense concrete.
- Increased slump and workability improves efficiency of labor and reduces labor costs.
- Reduced water/cementitious ratio reduces permeability and increases durability.
- Improved finishing characteristics.
- Increased strengths allow faster structural use of concrete.
Usage
- SikaPlast®-500 can be used in all types of conventional ready mix concrete applications and is effective in concrete containing Portland Limestone Cement and supplementary cementitious materials. SikaPlast®-500 is specifically suitable in following applications:
- Concrete slabs
- Concrete footings
- Concrete paving
- Harsh mix designs with low cement content
Advantages
Mid Range Water Reducing Applications: Mid range application will be beneficial especially in ready mix applications. At a medium dosage, SikaPlast®-500 can be used as a cost effective mid range water reducing admixture or simply as a water reducing admixture for production of conventional slump concrete. When used as a mid range water reducing admixture, water reduction up to 12 % can be obtained. Various levels of water reduction can be achieved by adjusting the dosage rate of SikaPlast®-500. At higher dosage rates increased water reduction up to 20% can be achieved making it suitable for some high range water reducing applications. The plasticizing action of SikaPlast®-500 allows for the production of flowable concrete with moderate workability and slump retention that can typically be placed with minimal vibration even at a low ater/cementitious ratio. At lower dosages rates SikaPlast®-500 is an effective normal water reducing admixture. This application is ideal for use with lean, harsh concrete mixes or concrete containing supplementary cementitious materials. High Range Water Reducing Applications: When used as a high range water reducing admixture, water reduction up to 20 % can be obtained. The plasticizing action of SikaPlast®-500 allows for the production of flowable concrete with moderate workability and slump retentionthat can typically be placed with minimal vibration even at a low water/cementitious ratio. The combined water reducing and superplasticizing action in all three cases provide the following benefits:
- Higher early and ultimate strengths.
- Reduced water cement ratios produce more durable dense concrete.
- Increased slump and workability improves efficiency of labor and reduces labor costs.
- Reduced water/cementitious ratio reduces permeability and increases durability.
- Improved finishing characteristics.
- Increased strengths allow faster structural use of concrete.
Packaging
205 L (54 US gal.) drum
1040 L (275 US gal.) IBC
Bulk delivery
Colour
Liquid / Dark Brown
Product Details
ENVIRONMENTAL INFORMATION
- Conformity with LEED®v4 MR Credit (Option 1): Building Product Disclosure and Optimization – Environmental Product Declarations
APPROVALS / CERTIFICATES
SikaPlast®-500 is designed to meet the requirements of ASTM C494 Types A and F.
- Approved by the Ontario Ministry of Transportation.
- Approved by the Ministère des Transports du Québec.
Shelf Life
1 year when stored in dry warehouse conditions at temperatures between 5 °C and 27 °C (40 °F and 80 °F).
Storage Conditions
Store at temperatures above 5 °C (40 °F). If frozen, thaw and agitate thoroughly to return to normal state. Protect from direct sunlight.
Specific Gravity
Approx. 1.16
Application
Mixing
For best plasticizing results, SikaPlast®-500 should be added directly to freshly mixed concrete in the concrete mixer at the end of the batching cycle. SikaPlast®-500 may also be dispensed as an integral material during the regular admixture batching cycle, or into freshly mixed concrete in a ready-mix truck at the concrete plant or job site. To optimize the superplasticizing effect, Sika recommends that the combined materials be mixed for 80–100 revolutions, either in the concrete mixer or in the ready-mix truck.
Combination with other admixtures: SikaPlast®-500 is highly effective as a single admixture or in combination with other admixtures. Contact your local Sika Sales Representative for further information.
Combination with pozzolanic materials: SikaPlast®-500 can be successfully used in mix designs utilizing pozzolanic materials such as fly ash and GGBFS
Recommended Dosage
For general concreting applications, recommended dosage rate is 195-780 mL/100 kg (3-12 fl.oz /100 lb) of cement. Dosage rates will vary depending on the material used, ambient conditions and the requirements of a specific project.
Where maximum water-reduction is required, dosage of up to 1170 mL per 100 kg (18 fl.oz/100 lb) of cementitious material may be used. In this case, delayed setting times will likely occur. Dosage rates outside the recommended range may be used where specialized materials such as microsilica are specified, extreme ambient conditions are encountered or unusual project conditions require special consideration. In these cases, contact your Sika Canada Technical Sales Representative for further information.
