I have concrete courses that teach you how to form, pour, power trowel finish a concrete slab, how to stamp concrete, epoxy coatings, repair foundation cracks.
Concrete generally weighs about 150 lbs per cubic foot. See all my calculations for different concrete weights on cubic yard, inch, meter, square feet.
When I have to remove a rust stain from concrete I use a product called Singerman Laboratories rust remover for concrete. This is my best rust removal product.
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