2. High strength and high density: Because the vibration of slip form paver is high frequency vibration. Vibration frequency is as high as 12,000 times per minute, which is tens of times of manual vibration. Vibrator of CP6000 slip form paver is hydraulic type. Its advantage is that it can adjust vibration frequency according to the size of concrete collapse in site to make concrete fully vibrated. At the same time, the uniformity of the paver is good (no vibration leakage and other phenomena occur). Secondly, the concrete face slab constructed by sliding form is extruded by self-weight and high strength of paver, which greatly improves the compactness. High density will inevitably produce high strength. We have done comparative tests. The same concrete mix ratio, the flexural strength of sliding form construction is about 15% higher than that of manual construction concrete slab, and it is less affected by human factors, and the construction quality assurance rate is high.