Cement Work

Written by Charles Peacock
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I've always been amazed by cement. It may sound silly, but how a pile of sand and some water can be transformed into such a hard surface seems like a bit of a miracle. Whatever the science behind this strange substance, there's no doubt that it's a crucial part of most construction projects.

Which Type of Cement Should You Buy?

There are many types of cement out there, and which type you choose usually depends on the size of your job. Ready mix cement is ideal for small jobs because it is easy to use and doesn't require any special mixes or chemicals (just water). It is relatively expensive, however, so it's not a good idea if you're working on a large job (such as the foundation or basement of a house).

The other main type of cement you can buy is transit-mix cement. This is the stuff that comes ready to go in the big spinner trucks. Transit-mix cement is cheaper, but only when purchased in large quantities. This is why it is used for virtually any large construction project.

Cement has four basic components, and it's also possible to buy them separately and to make your own mixture from scratch. The materials are the cement itself (the actual bonding agent), a fine aggregate (usually sand), a coarse aggregate (crushed rock or gravel) and water. Mixing your own cement can save you a lot of money, but you have to be careful that you use the right quantities of everything.

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