I've used spray oil in the lab to allow for easier demolding of formwork and cylinder molds when reusing, but never on tools. I don't think ACI or any body calls out against the use of oil in spec, but it's probably a bad idea as it can get in the middle of the sample and cause weak spots e.g...
Thanks TigerGuy! I remember the undergrab lab I worked in always had tools with concrete caked on in those exact spots... I'm definitely trying to avoid that. I'm also thinking of getting a roll of shop towels or old rags to carry around myself as I don't always have a clean cloth to wipe things...
Hi, I'm a new engineer who works with your standard set of fresh concrete tests (slump cone, cylinders, sometimes air). I have a kit (tampers, trowel, scoop, bucket) I carry around when driving to job sites and wanted to know if anybody has any tips for best practices to maintain them. I know...
