Research on Design Indicators for Graded Crushed Stone Mixture Based on Vibration Molding Method

Table 2

Parameters of three compaction instruments.

Modified Proctor compaction	Hammer mass	Hammer diameter	Height	Compact layer	Compact times	Compaction work
	4.5 kg	5.0 cm	45 cm	3	98	2.677 J
Traditional vibration compaction	Frequency	Counterweight (up/down)	Amplitude	Centrifugal force	Vibratory time	Compaction work
	5–50 Hz	5.5/4.5 kg	Various	Various	2 min	Various
Modified vibration compaction	Frequency	Amplitude	Centrifugal force	Intensity of pressure	Vibratory time	Compaction work
	28–30 Hz	0.5–2.5 mm	6000–8000 N	140 ± 10 kPa	2 min	5.881 J