Key Principles and Procedures for Low-Temperature Asphalt Concrete Paving
Construction methods · Project management
Taiwan Professional Civil Engineers Association discusses low-temperature asphalt paving, highlighting PCC specs requiring temperatures above 10°C, with insulation and rapid compaction as key principles.
The Taiwan Professional Civil Engineers Association reviewed technical measures for low-temperature asphalt paving. PCC specifications require air temperatures above 10°C. If paving under low temperatures, projects must prioritize heat retention and rapid rolling, strictly during dry weather without ice or standing water. Mix design may use anti-stripping additives and optimal asphalt content toward the upper limit; dense-graded asphalt must arrive above 120°C and remain closed to traffic until cooled below 50°C.
Key takeaways
- PCC specifications require ambient temperatures above 10°C for paving; low-temperature work requires strict heat retention and rapid compaction.
- Haul trucks require canvas covers, mix arrival must typically exceed 120°C, and traffic is prohibited until pavement temperature drops below 50°C.
Source：台灣省土木技師公會｜技師報 Read the original ↗
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