Waste cathode ray tube glass has been formed into two different products which are spherical glass (GS) and crushed glass (GC). Since it is a new material that acts as a coarse aggregate in concrete production, the architectural and civil structures built with such concretes may face a risk of fire situations. Thus, it is important to analyze the behavior of concrete containing GS and GC after exposure to high temperatures. A series of experimental programs were conducted on mixtures of concrete containing GS and GC as coarse aggregates, which were subjected to high temperatures ranging from ambient temperature to 800 °C at exposure time of 1 and 2 h. Compressive strength, splitting tensile strength, mass loss, and X-ray diffraction were analyzed. Results show better compressive strength in concrete containing GS at temperature 200–600 °C. However, the use of GS affects the splitting tensile strength more negatively, compared to GC. But, at a temperature beyond 600 °C, the use of GC causing bubbles of glass appeared on the surface of concrete and toxic Pb was found in the crushed concrete paste.

阴极射线管废玻璃已经制成两种不同的产品，分别是球形玻璃（GS）和碎玻璃（GC）。由于它是在混凝土生产中充当粗骨料的新材料，因此使用这种混凝土建造的建筑和民用建筑可能会面临着火灾的危险。因此，重要的是要分析含有GS和GC的混凝土在高温后的性能。对含有GS和GC作为粗骨料的混凝土混合物进行了一系列实验程序，这些混合物在暴露时间1和2 h下经受了从环境温度到800°C的高温。分析了抗压强度，劈裂抗张强度，质量损失和X射线衍射。结果表明，含GS的混凝土在200–600°C的温度下具有更好的抗压强度。然而，与GC相比，GS的使用对劈裂抗张强度的影响更大。但是，在超过600°C的温度下，使用GC导致混凝土表面出现玻璃气泡，并且在压碎的混凝土浆中发现有毒的Pb。