Testing and Evaluation of Hard Sandstone Aggregate in Hot Mix Asphalt

Table 1

Properties of limestone, diabase, basalt, and gravel aggregate [8–11].

Test item	Limestone	Basalt	Diabase	Gravel
Apparent relative density	2.674–2.892	2.724–3.020	2.48–2.983	2.842
Crushing value (%)	12.7–22.2	9.1–12.9	12.2–12.4	10.1
Polishing value (%)	40.2–43	42–47.1	45–49.3	44
Los Angeles abrasion loss (%)	13.6–17.7	5.8–13.6	6.8–14.1	13.5
Water absorption	0.43–0.52	1.08–1.02	—	—