Just a few pennies worth. When I was a kid in the late 50s into the early 60s the Interstate system was going full tilt in my area. Getting any concrete was a real b....ch for several months not for love nor money because all of the plants were pouring nothing but hy-way. My dad and I were trying to pour a couple of slabs for the green chop feeding aprons. My dad had a couple of friends who worked at the batch plant up the road. One day he gets a call about a "missing" load of concrete and were we ready to go. Eleven yards of Hy-Way grade concrete shows up. You pour this stuff and in a few minutes it starts to turn White! The only thing my dad had were a bunch of those wire screens you toss into the concrete for reinforcing it. We did put in several expansion half inch thick strips that were like tar paper. These platforms are almost 55 years old and there are only one or two tiny cracks. No rebar, just that wire mat stuff. Now most of them are almost 6 inches thick, but they are still there. Now today the way they do curbs with slip forms and zero slump concrete is amazing to watch. Stuff never moves and if you look about fifteen feet back you can see it is getting dry. The surface that is. I did see some concrete being poured with those metal needles mixed in. Looked very interesting.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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