design criteria for cement concrete
Here in Indiana we do the following: Water/Cement ratio Slump Air Content Yield Beams for Flexural Strength Cylinders for Compressive Strength
The only criteria for designing with cement or concert is ideas and creativity. You can use it with forms or bender board to make a unique shaped pathways. You can make great home planter boxes. You can pour it into rubber mold's and make all kinds of shapes for your garden or for the interior of your home. Making different size spears are fun and if you make them yourself they are a lot cheaper this way. You can make stepping stones and add stones and leaf impression to add a great design. You can color it with products they sell at Home Depot, Lowes or any good paint store. Once you get started a ton of more idea's will come to you. It really is a fun medium to work with and with last for years. Life long artist...