These are two basic concrete block categories:
hollow and
solid. Both of those concrete block types are typically used during the
construction of walls, but are often used for other purposes as well.
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| Concrete Blocks masonry |
Not mean solid concrete blocks are fully solid, as
you’ll see, but they’re more solid than hollow blocks are holle. We’ll discuss
the various types of concrete blocks and types — also known as concrete work
units or CMU — in more detail down below.
Types of concrete blocks
You’re probably conversant in concrete blocks from
your local hardware store, where you'll have heard some of them called cinder
blocks. this is often because cinder blocks were originally made in part from
cinders that were left over when coal was burned (often at coal-fired plants).
The cinders were used as a substitute for sand and gravel in concrete, with the
result being lighter and fewer durable cinder blocks.
The terms “concrete” and “cement” also are often
confused. Cement is an ingredient wont to make concrete. Other materials, like
sand, gravel, and stone, constitute about three-quarters of what you discover
in concrete. Cement — a powder formed of clay, limestone, and other substances
— is combined with water and added to the combination to create concrete.
The history of concrete actually begins with a kind of
naturally occurring cement that formed because of reactions between limestone
and oil shale. it had been first discovered in what is now Israel and is
thought to date back about 12 million years. Cement has been wont to build
everything from the Great Wall of China to the Roman Colosseum.
Concrete blocks are an alternate construction material
to brickwork with advantages and disadvantages. Because concrete blocks are
larger than bricks, less cement is required in mortar joints to hold them
together. However, due to their moisture content and larger size, concrete
blocks are more susceptible to movement and cracking when a foundation shifts
than bricks are.
Hollow Concrete Blocks vs. Solid Concrete Blocks
There are two main sorts of concrete blocks used in
the construction industry: hollow and solid. Fully solid blocks are often used
for projects like paving, where stability and sturdiness are important. You
wouldn’t want to undertake walking on pavement full of holes.
Hollow blocks, which have holes that take up quite
one-quarter (and usually more than half) of their cross-sectional area, are
used when building boundary fences and other large structures. The holes make
them lighter and may be useful when running wiring or piping through them.
you'll also run rebar through the holes for greater stability.
Hollow Concrete Blocks
Hollow concrete block
Hollow concrete blocks are available three grades:
Grade A features a minimum density of 1,500 kg/m3.
Grade B features a density of less than 1,500 kg/m3.
Grade C features a density greater than 1,000 kg/m3.
Grades A and B are used for load-bearing concrete
block walls, while grade C is employed for non-load-bearing walls.
Hollow blocks are available several types, which are
detailed below.
Solid Concrete Blocks
Solid concrete block
Fully solid concrete blocks appear as if gray bricks
but are typically larger. They’re good for creating walls that provide
protection against the weather , like strong winds.
They types of block also be used for projects such as
garden walls and planters wall, retaining walls, foundations, steps, and
firepits and path.
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