GB/T 22459.9-2024 is Part 9 of the series of standards for refractory mortars, specifying the test method for shear bond strength at ambient temperature, applicable to the determination of related properties of various refractory mortars. The core of the standard involves bonding refractory brick test blocks with refractory mortar to form specimens, which are then dried or fired. Afterward, shear stress is applied to the bonded surface at room temperature until failure occurs. The shear bond strength is calculated based on the maximum load and the bonded surface area. The test requires the use of a testing machine capable of applying constant load and recording peak values, specialized loading devices, a vernier caliper with a resolution of 0.02 mm, a programmable temperature-controlled electric drying oven, a mixer, and a mortar consistency tester, among other instruments. This standard provides a unified technical basis for quality control of refractory mortars.
| Status | Active | ||
|---|---|---|---|
| CCS | Q40 | ICS | 81.080 |
| Release Date | 2024-06-29 00:00:00 | Implementation Date | 2025-01-01 00:00:00 |
