A new construction method is transforming timelines in the industry by determining optimal formwork removal.
- Octavius Infrastructure has developed a technique using temperature probes to assess concrete curing times.
- The traditional cube crush method has been questioned for its accuracy due to differing core properties.
- Trials of this new method were conducted on projects like High Speed 2 and Chelmsford Bypass.
- Cost efficiency and quality control are significant advantages of this new monitoring approach.
The construction industry is witnessing a significant shift as Octavius Infrastructure introduces a novel technique to determine when to strike formwork from concrete structures. By using temperature probes, the method allows for a more precise assessment of concrete curing times. This advancement has shown promise on major projects including High Speed 2 (HS2) and the Chelmsford North East Bypass.
Traditionally, the industry has relied on the cube crush method, which assesses when it is safe to remove formwork. However, the accuracy of this method has been brought into question. The physical properties and curing rates of test cubes often differ from those of actual structures, leading to discrepancies. Factors such as size and shape significantly impact the internal temperature and subsequent curing speed of concrete.
Octavius Infrastructure’s new method addresses these issues by employing sacrificial thermocouple wires embedded in the concrete. These wires transmit temperature data to an online platform in real-time, providing a direct insight into the curing process. This real-time data collection demonstrates that concrete can cure more rapidly than indicated by the traditional cube crush tests, allowing for earlier removal of formwork.
The technique was rigorously tested on projects like HS2 and the Chelmsford bypass, where it was cross-referenced with conventional methods. After reliable results were obtained, the method was adopted more broadly.
The benefits of this approach extend beyond saving time. By enabling formwork to be removed up to five days earlier than conventional methods suggest, overall project delivery times can be significantly reduced. Additionally, the method offers considerable cost savings. While traditional cube tests cost approximately £250 for a set of three, the new monitoring technique incurs about £20 per pour after the initial setup.
Beyond time and cost efficiencies, the new method significantly enhances quality control. This technology allows for precise monitoring of the concrete’s core conditions, ensuring they remain within specified temperature ranges. Deviations could compromise structural integrity, underscoring the importance of such real-time oversight.
The work of Octavius Infrastructure suggests that leveraging modern technology in traditional processes like concrete setting can lead to substantial efficiency and quality improvements in future construction projects.
The introduction of real-time monitoring in concrete curing represents a breakthrough in construction, offering faster, cheaper, and higher-quality outcomes.
