- Seen : 191 View
Fast-setting concrete superplasticizer based on polycarboxylate ether; exceptional performance for concreting at low temperatures
If you are looking for an admixture that will simultaneously provide your concrete with excellent fluidity and rapid setting in cold weather, a polycarboxylate ether-based superplasticizer is an excellent choice. This new generation product, with its unique comb molecular structure, has a far superior performance in reducing water, increasing workability and maintaining concrete fluidity compared to previous generations such as lignosulfonates and naphthalene sulfonates. Polycarboxylate ether (PCE) technology maximizes the dispersion of cement particles by creating two simultaneous repulsive forces (electrostatic and steric barrier) and enables the production of concrete with very low water-to-cement ratios.
Dual action mechanism for tough conditions
The secret of this product’s success lies in its two simultaneous functions. On the one hand, the long polyethylene glycol (PEG) chains separated from the polycarboxylate ether comb structure create a stable steric barrier, preventing cement particles from sticking together and giving the concrete an unparalleled fluidity. On the other hand, the specially designed carboxylate functional groups, while adsorbing onto the cement particles, accelerate the hydration process at low temperatures and significantly reduce the initial setting time. This feature makes it an ideal solution for projects that face the challenge of late setting of concrete in cold weather.
Key Benefits:
- Extraordinary reduction in water consumption (up to 40%) leading to a significant increase in compressive and flexural strengths
- Unparalleled increase in fluidity, efficiency and ease of pumping and compaction, even in concretes with high reinforcement density
- Fast setting in cold weather and the ability to open molds early, increasing the speed of project implementation
- Long-term slump retention that allows concrete to be transported over long distances
- Prevent cracks caused by plastic shrinkage and freezing in cold regions
- Excellent compatibility with all types of cement and pozzolanic materials such as microsilica and fly ash
Main applications:
- Pouring concrete in cold weather and low temperature areas (winter conditions)
- Production of prefabricated concrete parts for quick removal from the mold
- Projects with dense reinforcement and high performance requirements
- Self-compacting concrete (SCC) and high-strength concrete (HPC and UHPC)
- Prestressed systems and sliding forms
- Bulk concretes that require hydration temperature control
Suggested dosage:
It usually varies between 0.2 and 1.5 percent of the weight of the cement used. Its effect is highly dependent on ambient temperature, cement type, mixing design and other ingredients. Excessive use can cause segregation and water loss and even negatively affect the final strength, so it is absolutely necessary to conduct field tests to determine the optimal dosage.
Saler Company Information
No comments have been posted yet
Your comment has been sent
