The concrete commonly used to make concrete blocks is a mixture of powdered portland cement, water, sand, and gravel. This produces a light gray block with a fine surface texture and a high compressive strength. A typical concrete block weighs 38-43 lb (17.2-19.5 kg). In general, the concrete mixture used for blocks has a higher percentage of sand and a lower percentage of gravel and water than the concrete mixtures used for general construction purposes. This produces a very dry, stiff mixture that holds its shape when it is removed from the block mold. With a variety of sizes, in both hollow and solid shapes, concrete blocks are an ideal material for building projects or as supports for a host of uses.
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Use concrete blocks to build foundations or complete home construction. Blocks are great for smaller projects like fire pits, raised garden beds, shelf spacers/supports, and more.
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