Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: AASHTO TP 68:2004
• Năm ban hành / Publication date: 2004
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: Standard Method of Test for Density of In-Place Hot Mix Asphalt (HMA) Pavement by Electronic Surface Contact Devices
• Số trang / Page: 6

Phạm vi áp dụng / Scope of standard

This method covers the in-place determination of the total
density and relative compaction of HMA pavements by measuring
changes in the electromagnetic field resulting from the compaction
process.

The equipment referenced in this method is a surface contact
device that is relatively unaffected by the surface moisture and
surface variances in temperature typically encountered during HMA
paving operations. If needed, it should include circuitry to
measure/compensate for moisture and temperature variances during
the material compaction process.

This procedure does not purport to address all of the safety
concerns associated with its use. It is the responsibility of the
user of this procedure to establish appropriate safety and health
practices and determine the applicability of regulatory limitations
prior to use.