Although there are many types of concrete admixtures for cold weather protection, calcium chloride remains the accelerator most preferred. The reason is that calcium chloride has the ability to accelerate cement hydration, and thereby reduce its set time by as much as two-thirds. Research shows that a 2% addition of calcium chloride has an equivalent cure strength at 50 degrees Fahrenheit as plain concrete has at 70 degrees Fahrenheit. Additionally, calcium chloride used as a concrete admixture accelerates cement hydration, provides fast early strength, reduces final set time, reduces water requirements, reduces bleeding, and improves workability.
LIQUIDOW™ meets or exceeds ASTM D98 and AASHTO M144 requirements for calcium chloride purity.
Why use Calcium Chloride?
- Ready Mix Concrete Acceleration
- Calcium chloride has been used in manufacturing ready mix concrete for over 50 years. The primary benefit of calcium chloride in concrete is an accelerated rate of hydration for cement. This significantly reduces setting time to facilitate rapid attainment of early strength and easier protection of freshly placed concrete in cold weather.
- Improving Profits and Performance
- Ready-Mixed concrete containing calcium chloride offers significant economic benefits to concrete contractors by reducing cost and improving their overall performance and profits.
- Anytime the temperature drops below 70 degrees, the setting of ready-mixed concrete slows down. The effect is most significant in the 30 to 50 degree range; the rapid setting offered by the addition of calcium chloride to ready mixed concrete allows concrete contractors to continue to work effectively into the fall and winter months.
- A 2% admixture of calcium chloride at 50 degrees will improve setting times to those attainable at 70 degrees without calcium chloride.
- Technical Assistance
- Great Lakes Chloride is ready to answer your questions on how best to utilize calcium chloride in Ready Mixed Concrete manufacture.