Tiêu chuẩn quốc tế

Số hiệu Standard Number AASHTO T 388:2020 Năm ban hành 2020 Publication date Tình trạng A - Còn hiệu lực Status
Tên tiếng Anh Title in English Standard Method of Test for Detectable Warning Systems
Số trang Page 56 Giá: Price Liên hệ / Contact us
Phạm vi áp dụng Scope of standard This method of test covers the specimen fabrication, testing protocols, and laboratory-accelerated weathering of detectable warning systems for the purposes of evaluating durability. This method of test covers the following categories: Non-Destructive Evaluation Tests: • Visual and Microscopic Evaluation (Section 6) • Dome Shape and Geometry Measurement (Section 7) • Static Coefficient of Friction Measurement, Dry and Wet (Section 8) • Color Measurement (Section 9) Destructive Evaluation Tests: • Resistance to Impact from Falling Tup (Section 10) • Resistant to Impact from Simulated Snowplow Blade (Cold Exposure) (Section 11) • Wear Resistance (Section 12) • Coating and Single Dome Bond (Systems with Coatings or Surface-Applied Single Domes) (Section 13) Laboratory-Accelerated Weathering-Exposure Regime (Hot and Cold Exposure Categories): • High Temperature Thermal Cycling (Section 14) • Abrasion Exposure (Section 15) • Freeze-Thaw Durability (Cold Exposure Applications only) (Section 16) • Ultraviolet Light Exposure (Section 17) Figure 1 illustrates the suite of tests that are available to evaluate the durability of detectable warning systems.