JumpStart™ ready-mixed concrete accelerates setting and early strength development for low-rise residential projects when temperatures drop below 10°C. It enables confident scheduling even in winter conditions with faster finishing and form removal.
JumpStart™ uses calcium chloride and accelerators to dramatically shorten final set times compared to normal concrete, even at 0°C to -3°C ambient temperatures.
Reduced labour, equipment rental, and heating costs through faster completion.
Predictable performance in fluctuating spring/fall weather keeps projects on track.
Higher early strengths support earlier form removal while protecting fresh concrete.
Our CBM Concrete Solutions product line covers a wide range of project needs – from self-consolidating and high-workability flatwork mixes to fibre-reinforced, accelerated strength, extended workability, and durability-focused formulations. All mixes are performance-based and CSA-compliant. Our technical team can also develop custom mix designs for projects with specific structural or environmental requirements.
We work directly with engineers and contractors before the first truck arrives – reviewing exposure class, strength development, pumping distances, and workability windows to build a concrete program around your project, not around a standard product. The Gordie Howe International Bridge, the Eglinton Crosstown LRT, and 141 Bay are examples of that process at work.
Yes. Every customer has access to the same ready mix concrete solutions and quality-controlled mixes that go into our largest builds. Get in touch with your local CBM representative to discuss your requirements.
CBM is proud to be part of Votorantim Cimentos, one of the largest building materials companies in the world. Our VC Way is the operating philosophy that runs across the entire Votorantim Cimentos family – and it shapes how our teams work every day. For our customers, that means decisions made close to the job, clear communication from order to delivery, and accountability that does not stop once the truck leaves the plant. The work we did at Ripley’s Aquarium, the Gordie Howe International Bridge, and other countless projects reflects exactly that – sustained technical collaboration, dependable execution, and a standard of care that holds across the full life of a project.
JumpStart™ typically incorporates 1.5–2.0% calcium chloride by cement weight, achieving initial set in 2–4 hours and final set in 6–8 hours at 0 °C to –3 °C ambient temperatures. Compressive strengths reach 10 MPa at 24 hours and 20 MPa at 3 days, enabling form removal and loading per engineering schedules while meeting CSA A23.1 cold-weather requirements.
The rapid stiffening supports conventional screeding and troweling within a 45–60 minute placement window, even at sub-5 °C temperatures. Higher early-age stiffness reduces surface bleeding and improves float/trowel traction, delivering dense, durable residential slabs without cold joints or plastic shrinkage cracks common in unaccelerated winter pours.
While JumpStart™ enables pours down to –3 °C ambient, standard cold-weather practices remain essential: heated mix water (40–60 °C), insulated blankets or enclosures post-placement, and minimum concrete temperatures of 5 °C during finishing and 0 °C for 48 hours after placement. This ensures the accelerated hydration completes without thermal shock or delayed strength gain.
Connect with our team for cold weather solutions and project planning.
