As summer transitions to cooler fall weather, commercial contractors face unique challenges in managing concrete pours. The shift in temperature, daylight, and moisture conditions can impact mix performance and finishing, making planning essential for a smooth job.

Here are a few key considerations to keep your projects on track:

1. Watch the Weather Swings

Late summer and early fall often bring unpredictable temperature swings, hot afternoons, cool mornings, and even sudden rain showers. Concrete poured in fluctuating conditions can develop surface cracks or inconsistent curing. You must keep an eye on extended forecasts and have contingency plans for covers, heaters, or curing blankets as needed.

2. Adjust Mix Designs if Needed

As cooler nights creep in, hydration slows down. Work with your supplier to fine-tune admixtures - like accelerators for chilly mornings or water reducers for humid afternoons, to keep your pour schedule efficient and on spec.

3. Mind the Daylight

Shorter days mean less time to work with natural light. Plan pour start times earlier to maximize finishing windows, and ensure lighting is ready for later finishing or curing tasks if the sun sets before you’re done.

4. Protect Fresh Concrete

Even when it’s not freezing, cooler evenings and unexpected rain can affect curing. Have curing compounds, coverings, or even enclosures on hand to safeguard surface quality and prevent delays.

5. Communicate Early with Your Supplier

Coordinating truck spacing, delivery timing, and mix adjustments in advance is key to avoiding hiccups during seasonal transitions.

At ProContractor Supply, we help commercial crews finish strong as summer winds down. From equipment and admixtures to planning support, we’ve got the tools and expertise to keep your projects on schedule and on spec.

If you have questions about your upcoming pour, let us help.

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