高性能混凝土耐久性性能检测

High-performance concrete durability performance testing experience

高性能混凝土是以耐久性作为设计的主要指标,针对不同用途要求,对下列性能重点予以保证:耐久性、工作性、适用性、强度、体积稳定性和经济性。由于混凝土的冻融破坏、钢筋锈蚀、碱骨料反应都是以水渗透为前提的,因此抗渗性能是高性能混凝土最重要的耐久性能。在进行抗渗性能检测时,受仪器设备、操作手法、包裹材料等因素的影响,极易造成试验结果的不准确。本文主要论述了高性能混凝土抗渗性能检测的心得体会。

Durability of High Performance Concrete is designed as the main indicators for different purposes requires, be guaranteed the performance of the focus on the following： durability, work, fitness, strength, volume stability and economy. Since the freeze-thaw damage of concrete, steel corrosion, alkali aggregate reaction are water infiltration as a precondition, so the most important impermeabihty of concrete durability. When impermeability during testing, the affected equipment, operating practices, wrapping materials, and other factors, can easily result in inaccurate test results. This article discusses the performance concrete impermeability test experiences.