The Challenge
In mass concrete elements, managing the heat of hydration is critical to structural integrity. As the exothermic reaction of cement hydration progresses, large temperature gradients between the core and the surface can lead to significant thermal stresses, resulting in thermal shock and early-age macro-cracking. This is why most project specifications mandate a Thermal Control Plan (TCP). Compliance with ACI 207.1R (Guide to Mass Concrete) and ACI 207.2R (Thermal Analysis) requires precise, continuous monitoring to ensure that internal temperatures and differentials remain within safe, calculable limits.
The Solution: Automated Thermal Compliance
Our solution provides continuous, remote monitoring of core and surface temperatures to ensure strict adherence to project-specific thermal specifications. High-precision sensors are placed at various depths within the concrete element; data is then transmitted via ruggedized measurement devices to the Vemaventuri web app for real-time analysis and automated reporting.
Engineering Impact & Key Benefits
- Prevent Thermal Cracking via Differential Tracking: Automatically calculate the difference between core and surface sensors to stay within specified limits (e.g., typically 20 °C (36 °F) and to prevent internal stresses and thermal shock.
- Durability Assurance and DEF Prevention: Monitor peak internal temperatures to ensure they do not exceed the 70 °C (158 °F) threshold. This proactively prevents Delayed Ettringite Formation (DEF), protecting the long-term structural integrity of the concrete.
- Validated Thermal Control Plans (TCP): Provide structural engineers with continuous, documented data streams to validate that cooling or insulation strategies are performing exactly as modeled.
- Automated Documentation & Cold Weather Protection: Eliminate the risk of manual logging errors with 24/7 digital data collection. Receive instant mobile alerts before concrete reaches critical low temperatures, allowing for immediate intervention during winter pours.
