Sika® Set Accelerator
Sika® Set Accelerator is a calcium-chloride based admixture used to reduce the setting time of concrete.
- Reduced initial setting time of concrete.
- Improved early strength development of concrete.
- Reduction of delays due to cold weather.
- Reduction of concrete bleed (due to faster set)
- Earlier stripping times.
Usage
Sika® Set Accelerator can be used to reduce concrete setting times and improve early strength development and is useful in the following applications:- Reduction of setting time during cold-weather concrete work.
- Emergency concrete repairs where early strength is necessary.
- Improve setting time and early strength for fast-track construction.
- Improve setting time and early strength for precast concrete products.
Advantages
The advantages of Sika® Set Accelerator are:- Reduced initial setting time of concrete.
- Improved early strength development of concrete.
- Reduction of delays due to cold weather.
- Reduction of concrete bleed (due to faster set)
- Earlier stripping times.
Packaging
Bulk deliveries
205 litre drum
10 litre container
Colour
Colourless clear liquid
Product Details
APPROVALS / STANDARDS
Sika® Set Accelerator meets and exceeds all requirements of Australian Standard 1478.1-2000 Set-accelerating Admixture (Ac)
Chemical Base
Liquid solution of calcium chloride
Shelf Life
Stored at temperatures between 5°C and 35° C in unopened original containers protected from direct sunlight, shelf life is at least one (1) year.
Storage Conditions
Store at temperature between 5°C and 35°C, protected from the direct sunlight.
Specific Gravity
1.33 g/cm3
Total Chloride Ion Content
1000 ml contains approx. 330 g chloride ion.
Application
Compatibility
When using with other admixtures check compatibility first.
When using Sika® Set Accelerator laboratory and site trials are recommended.
Dispensing
Sika® Set Accelerator should ideally be dispensed with the batch water. Sika® Set Accelerator should not be dispensed directly onto dry cementitious materials.
Sika® Set Accelerator can be added to concrete after mixing, but concrete should then be thoroughly mixed before being discharged. (Minimum of 1 minute/m3 mixing at full speed).
Recommended Dosage
Typical dosage is between 1000 and 2000 ml per 100 kg of total cementitious material. Optimum dosage should be determined by site trials. Dosages outside the typical range can be used. Trials should be carried out to confirm performance.
As ambient and concrete temperatures reduce an increase in the dose rate of Sika® Set Accelerator may be necessary in order to maintain performance.
At very low temperatures (typically below 5°C), other precautions may be necessary in order to ensure concrete sets. Precautions may include heating water or aggregates etc.