Hot Weather Concrete Construction: Best Practices and Tips

Concrete construction in hot weather has unique problems that can impact the end product’s quality and longevity. At Earth Engineering Inc., we understand the key aspects to consider and the tactics to execute to ensure that concrete projects are completed successfully, even in extreme temperatures.

Earth Engineering Inc. is a geotechnical consulting company in NJ and other areas of PA dedicated to organizing sustainable practices in all our projects. Here, we provide insights into the practices for hot weather concrete construction.

Recognizing the Obstacles

Hot weather can increase the hydration process of concrete, causing several issues:

• Rapid Slump Loss: The concrete mix loses workability quickly, making it more difficult to place and complete.
• Increased Risk of Cracking: Rapid water evaporation can result in surface cracking and shrinking.
• Reduced Strength: High temperatures can decrease the overall strength of the cured concrete.
• Inconsistent Curing: Uneven curing can result in differential cooling and thermal cracking.

Best Practices during Concrete Construction in Hot Weather

Schedule concrete pours for early morning or late evening to prevent peak temperatures. Ensure all equipment and materials are ready to prevent delays during the pour.

Admixtures, such as water-reducing and set-retarding admixtures, can help improve workability and extend setting time. Consider incorporating micro silica or fly ash to improve concrete’s durability and strength.

Efficient transportation and positioning is critical. To mitigate the impacts of heat, shorten the period between mixing and placing. Proper curing techniques are required. Start curing right away after finishing to keep moisture and temperature under control. To keep moisture in, utilize curing chemicals, water spray, wet burlap, or plastic sheeting. Use constant fogging or misting systems to prevent evaporation.

Monitoring and altering real-time mix design and placement approaches using data and forecasts. Continuously monitor the temperature of the concrete mix and the surrounding circumstances.

By implementing these best practices, you may overcome the difficulties caused by high temperatures and create long-lasting, better concrete constructions. Contact us for concrete construction, testing, and consulting in Philadelphia and various other areas of PA and NJ. 

Earth Engineering Inc. is dedicated to offering professional advice and solutions for all of your concrete building requirements. Regardless of the weather, we will help you successfully complete your work. Contact us today.