As we move deeper into fall, construction projects across Toronto and the Greater Toronto Area (GTA) are racing to meet deadlines before winter sets in. While many contractors rely on ready-mix concrete to save time and improve efficiency, some common mistakes—especially in cooler weather—can lead to costly delays, rework, or reduced durability.
At ML Group, we’ve seen how simple adjustments can make all the difference. Here’s how you can ensure you’re getting the most out of your ready-mix concrete, keeping projects on track and avoiding common pitfalls this fall.
1. Not Accounting for Cooler Temperatures
As the weather cools, the properties of concrete change. Pouring concrete in cooler temperatures without making the necessary adjustments can lead to longer curing times or even structural failure down the line.
The Mistake: Treating fall like summer when it comes to concrete.
What to Do:
- Cold Weather Mixes: Ensure you’re using a mix designed for cooler temperatures. At ML Ready Mix, we offer tailored mixes with additives like accelerating admixtures to help concrete cure faster, even in lower temperatures.
- Use Insulating Blankets: Covering concrete with blankets or heated enclosures helps it cure evenly and protects it from freezing conditions.
- Keep an Eye on the Forecast: Avoid pouring on days when freezing is expected within 24-48 hours.
By planning ahead with the right mix and environmental controls, you can keep your concrete curing on schedule.
2. Poor Coordination in Delivery and Pouring
We’ve all seen how tight deadlines can lead to rushing—or worse, waiting—for concrete deliveries. Especially in the fall, when days are shorter and weather can be unpredictable, poor coordination can cause significant delays.
The Mistake: Not being fully prepared when your concrete arrives.
What to Do:
- Timely Communication: Work closely with your supplier to ensure your delivery is on time and aligned with site conditions. At ML Ready Mix, we pride ourselves on timely deliveries, but it’s crucial that your site is fully prepped when the truck arrives. Have your crew, equipment, and pouring forms ready to go.
- Plan for Unexpected Delays: Weather can slow down transport, so always leave room in your schedule for potential hiccups. Ensuring you have flexible timelines can prevent concrete from sitting too long and losing its workability.
3. Using a One-Size-Fits-All Mix
Different projects and conditions require different mixes—especially in the colder months. Using a standard mix might seem easier, but it can cost you in the long run through cracking, shrinkage, or reduced durability.
The Mistake: Assuming one mix will work for all projects.
What to Do:
- Lower Water-Cement Ratio: In cooler weather, consider using a mix with a lower water content to prevent shrinkage and increase strength.
- Custom Solutions: When you partner with ML Ready Mix, you gain access to a range of specialized concrete mixes tailored to your project’s needs, whether for load-bearing structures or utility backfills. Our team is ready to help you select the best option based on your specific project and environmental conditions.
4. Improper Subgrade Preparation
Concrete is only as good as the foundation it rests on. If the subgrade isn’t properly prepared—especially in fall, when the ground may be wet or uneven—you risk long-term damage, like cracking or uneven settling.
The Mistake: Neglecting subgrade preparation in a rush to meet deadlines.
What to Do:
- Compacted and Dry Subgrade: Before pouring, make sure your subgrade is well-compacted and dry. If the ground is wet, use a vapor barrier to prevent moisture from rising into the concrete and causing issues later.
- Don’t Rush It: While fall is crunch time, cutting corners on subgrade preparation can lead to costly repairs. Properly preparing your site ensures a solid, durable foundation that will withstand freezing temperatures and heavy loads.
5. Overlooking Freeze-Thaw Protection
In the Toronto region, freeze-thaw cycles are a significant concern. Water inside concrete expands when it freezes, causing cracks and surface scaling. If your concrete isn’t protected, it can deteriorate quickly.
The Mistake: Not preparing your concrete to withstand freeze-thaw cycles.
What to Do:
- Air-Entrained Concrete: Air-entrained mixes, like those available at ML Ready Mix, are designed to protect concrete from freeze-thaw cycles. The small air bubbles within the concrete allow room for water to expand without damaging the structure.
- Seal Your Surface: Apply a protective sealant to exterior surfaces to prevent water from penetrating the concrete. This is especially critical for outdoor projects exposed to the elements.
Why Contractors Trust ML Ready Mix
At ML Ready Mix, we understand the unique challenges contractors face, particularly during seasonal shifts. That’s why we offer a comprehensive range of concrete solutions designed to meet the specific needs of your projects throughout Toronto, Vaughan, Mississauga, and the Greater Toronto Area. Whether you’re working on residential, commercial, or infrastructure projects, our tailored mixes ensure you get the right solution for the job.
To learn more about our products, including high-performance and value-added concrete solutions, visit our Ready-Mix Products page or contact us for additional information.
Conclusion
Avoiding common mistakes with ready-mix concrete is key to ensuring the success of your fall projects. Staying informed on the latest best practices can save you time, reduce costs, and improve the quality of your work. At ML Group, we’re committed to providing contractors with expert guidance and reliable solutions tailored to the challenges of the season.
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