Sika® Plastiment® CA
WATER-REDUCING AND RETARDING ADMIXTURE
Sika® Plastiment® CA is a water-reducing and retarding admixture.
- Initial set times are delayed, allowing time for proper placement and finishing without cold joints in hot weather conditions.
- Sika® Plastiment® CA increases concrete density and delivers increased early and ultimate, compressive and flexural strengths.
- For flatwork applications, Sika® Plastiment® CA acts as a finishing aid, workability is improved, bleeding is controlled and a superior surface finish is obtained.
- Lower water cement ratios provide decreased permeability and increased durability.
- Sika® Plastiment® CA can be used to retard concrete during the hot weather concreting. Refer to ACI 305R Hot Weather Concreting for more information.
Sika® Plastiment® CA does not contain calcium chloride or any other intentionally added chlorides.
Usage
- Sika® Plastiment® CA is recommended for use whenever high quality concrete with predictable and controlled set times is desired.
- Use in horizontal or vertical placements where a superior surface finish is required.
Advantages
Sika® Plastiment® CA is highly effective in hot weather concreting to offset the accelerating effects of high ambient temperatures by slowing the hydration reaction and controlling the hydration heat. Concrete workability is enhanced and a superior surface finish is obtained. In mass concrete pours, Sika® Plastiment® CA controls temperature rise and reduces the risk of thermal cracking.- Initial set times are delayed, allowing time for proper placement and finishing without cold joints in hot weather conditions.
- Sika® Plastiment® CA increases concrete density and delivers increased early and ultimate, compressive and flexural strengths.
- For flatwork applications, Sika® Plastiment® CA acts as a finishing aid, workability is improved, bleeding is controlled and a superior surface finish is obtained.
- Lower water cement ratios provide decreased permeability and increased durability.
- Sika® Plastiment® CA can be used to retard concrete during the hot weather concreting. Refer to ACI 305R Hot Weather Concreting for more information.
Sika® Plastiment® CA does not contain calcium chloride or any other intentionally added chlorides.
Packaging
205 L (54 US gal.) drum
1040 L (275 US gal.) Intermediate Bulk Container (IBC)
Bulk delivery
Colour
Brownish liquid
Product Details
APPROVALS / CERTIFICATES
Sika® Plastiment® CA meets the requirements of ASTM C494 Types B and D.
Shelf Life
1 year when stored in dry warehouse conditions between 10 - 27 °C (50 - 80 °F).
Storage Conditions
Store at above 5 °C (40 °F). If frozen, thaw and agitate thoroughly to return to normal state before use.
Specific Gravity
Approx. 1.2
Application
Compatibility
Mixing
Add Sika® Plastiment® CA at the concrete plant. Measure required quantity manually or by automated dispenser. Add into the water line at the batch plant or directly into the concrete at the end of the mixing cycle.
Combination with other Admixtures: Sika® Plastiment® CA works effectively as a single admixture or in combination with other Sika® admixtures. When used in combination with other admixtures, care must be taken to dispense each admixture separately into the mix. Do not mix with dry cement.
Recommended Dosage
Dosage rates will vary depending on the materials used, ambient conditions and the requirements of a specific project.
For general concreting applications, Sika recommends a dosage rate between 50 - 260 mL/100 kg (2-4 fl.oz. / 100 lbs) of cementitious materials. Where extended retardation is required, dosage may be increased. 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 this case, please contact your Sika Canada Technical Sales Representative for further information.
