If you're ramp is quite large like this one or it's larger, you'll want to order concrete from a ready-mix concrete company. It'll be much easier than trying to mix it by hand. I use a 4000 psi mix with 3/4" stone, fiber-mesh, and air-entrainment (for freeze/thaw conditions)...
When precision was necessary, the guys used a concrete saw to cut the block. Step 10: Site Guides After the first course of block was laid, Victor’s crew used a transit to site a level line at all the corners. To do this, they first setup the transit in view of all the corners....
A concrete block is primarily used as a building material in the construction of walls. It is sometimes called a concrete masonry unit (CMU). A concrete block is one of several precast concrete products used in construction. The term precast refers to the fact that the blocks are formed and...
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(30 psi). The voltages were set at 3500 V for the capillary, 300 V for the nozzle and 400 V for the fragmentor. Positive mode at Extended Dynamic Range, 2 Ghz, 3200m/zwas used to record signals. Data acquisition and analysis were performed using the Agilent Mass Hunter Software package...
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