Study on the Accurate Measurement and Quantitative Evaluation Methods of Aggregate Surface Roughness

Table 1

Technical indices of the coarse aggregates.

Lithology	Crushing value (%)	Wear value (%)	Polishing value	Water absorption rate (%)	Apparent relative density (g/cm^3)
Granite	18.1	21.5	46	0.37	2.654
Diabase	12.6	10.0	65	0.77	2.765
Basalt	10.5	8.9	58	0.63	2.724
Limestone	21.5	19.4	42	0.72	2.698