A radioactive iodine uptake (RAIU) test uses a radioactive tracer and a special probe to measure how much tracer the thyroid gland absorbs from the blood. The test can show how much tracer is absorbed by the thyroid gland.
Learn How to Lay Blocks. Start mixing mortar mix as instructed. The first course of blocks should be installed below floor level and inside the foundation trench. This first line of concrete blocks shall rest on top of a layer of mortar mix. Spread mortar along the sides of the block and remove the excess mortar with a trowel. Repeat until the first course has been installed. Check the course with a level. Then, even it out with a thicker layer of mortar, if it is not.
Use a knife to cut 1 1/2 inch thick foam for the knockout in your mold. It will be slightly smaller than the mold. There is a 1 inch channel around the entire perimeter between the foam and the sidewalls. This will allow concrete to form around the foam and to create a lip. Your concrete counter will look like it is 3 inches thick throughout. However, it will only be 1 1/2 inches thick where the foam is placed. Thus, youâll reduce the weight of the countertop dramatically and will not have to purchase as much concrete.