Investigation on the Properties and Distribution of Air Voids in Porous Asphalt with Relevance to the Pb(II) Removal Performance

Table 2

Basic properties of the two PA specimens.

Specimen	Specimen height (mm)	Bulk specific gravity	Theoretical maximum specific gravity	Measured total AV content in specimen (%)	Effective AV content in specimen (%)
PAC-16(A)	64.1	2.090	2.645	20.98	13.10
PAC-16(B)	63.8	2.217	2.634	15.83	9.12