Sub-Base will be defined as a small base where there is no direct line supervision. This will | include YWG, YEG, YOW, YHZ, YQB and other sub-base(s) the Company may deem in the | future.
Sub-Base. The material for use in the sub-base shall consist of crusher dust as described, or other approved material. It shall be placed in one layer of such thickness that when compacted it shall attain the finished thickness shown on the Drawings. The material shall be watered as necessary and compacted as described. The sub-base material shall have a CBR value (unsoaked) of not less than 25. Preambles External Works
