BigH:
Sorry for the delay in response...
This SOP has been in place for decades here. All geotech firms I have observed and the state DOT field crews have extruded in the field. This practice is not strictly forbidden in the ASTM specs. From what I've determined, the logic behind the...
I know that a lot of those who read this will cringe! I currently work for an organization whose SOP is to extrude Shelby tubes in the field. However, we are gradually changing this to only allow extrusion in the laboratory. The method of extrusion used is a hydraulic ram mounted horizontally...
Hi All:
I've questions about the length of the 3"OD Shelby Tube sampler. AASHTO T207 (ASTM 1587) Table 1 lists the length as 36 inches, with the proviso that "Lengths of tubes are illustrative. Proper lengths [are] to be determined as suited to field conditions." My question is how do you...
