全再生粗骨料高性能混凝土施工水化热温度的监测——以南宁学院结构大厅反力墙混凝土施工为例

On-Site Monitoring of Hydration Thermal Regime in High-Performance Concrete Employing Entirely Recycled Coarse Aggregate—Illustrative Case of the Counterforce Wall, Structural Testing Hall, Nanning University

摘要: 全再生粗骨料高性能混凝土水化热大的特点，南宁学院结构大厅反力墙混凝土施工建立了完整的温控技术体系，包括监测、控制和水管、保温等措施。研究结果表明，采取的温控措施有效降低了全再生粗骨料高性能混凝土的内部温度，最高温度控制在73℃以内，且温度变化平稳。与普通C50混凝土相比，再生混凝土内部温度明显较低，表明温控措施有效降低了水化热的影响。水化热温度监测和控制方法能够有效控制全再生粗骨料高性能混凝土的内部温度，防止温度裂缝的产生，确保了工程质量，为类似工程提供了参考，推动了全再生粗骨料高性能混凝土在建筑行业中的应用。

Abstract: Due to the characteristic of high hydration heat in high-performance concrete made from fully recycled coarse aggregate, a comprehensive temperature control technology system was established for the concrete construction of the reaction wall in the Structural Hall at Nanning University. This system included monitoring, control, and measures such as cooling pipes and insulation. The research results indicate that the adopted temperature control measures effectively reduced the internal temperature of the high-performance concrete made from fully recycled coarse aggregate, with the maximum temperature controlled within 73˚C and temperature changes remaining stable. Compared to ordinary C50 concrete, the internal temperature of the recycled concrete was significantly lower, demonstrating that the temperature control measures effectively mitigated the impact of hydration heat. The monitoring and control methods for hydration heat temperature can effectively regulate the internal temperature of high-performance concrete made from fully recycled coarse aggregate, prevent the occurrence of temperature cracks, ensure engineering quality, provide references for similar projects, and promote the application of high-performance concrete made from fully recycled coarse aggregate in the construction industry.