GB/T 15231-2023 specifies the test methods for key properties of glass fiber reinforced cement, including bulk density, compressive strength, flexural performance, anchor bolt pull-out force, frost resistance, and accelerated aging. It clarifies the requirements for sample preparation, test conditions, and result processing, making it applicable for comprehensive performance evaluation of this material. The tests require various specialized instruments, including high-precision calipers for dimension measurement, electronic balances for mass weighing, electronic universal testing machines and specialized fixtures for pull-out testing to assess mechanical properties, automatic freeze-thaw equipment for frost resistance tests, and electric blast drying ovens for drying treatment. This standard provides a unified technical basis for material research and development, production quality control, and engineering applications.