Performance Evaluation of Cement-Stabilized Oil Shale Semicoke as Base or Subbase Course Construction Material

Table 9

UCS standard at 7 days for cement-stabilized materials.

Structure layers	Highway grade	Very heavy traffic (MPa)	Heavy traffic (MPa)	Medium and light traffic (MPa)
Base course	Freeway, class 1 highway	5.0–7.0	4.0–6.0	3.0–5.0
	Class 2 and below highway	4.0–6.0	3.0–5.0	2.0–4.0
Subbase course	Freeway, class 1 highway	2.5–4.5	2.5–4.5	2.0–4.0
	Class 2 and below highway	2.0–4.0	2.0–4.0	1.0–3.0