How do you pour exposed aggregate concrete?

Answer

There are two primary steps to pouring exposed aggregate concrete, according to the Concrete Network. The base concrete is mixed and then poured into slab form using a shovel or concrete mixer, where it is struck off and bull floated. The decorative aggregate is then spread over the slab by hand or shovel until it covers the top of the slab and the embedded top using the bull float.

According to the Concrete Network, an alternative to the two-step method is to mix the decorative aggregate directly into the concrete base and pour both elements into slab form. A less expensive alternative involves mixing the aggregate with concrete and spreading a thin layer of the mixture over an already-poured slab. The thin layer should be between 1 inch and 2 inches thick.

In all instances, once the aggregate is poured, it must be exposed as a final step. The aggregate can be exposed by washing the thin film of concrete off the stones with water and then brushing the slough away with a broom. The time allowed between laying the aggregate and exposure can be extended up to a day by spraying the surface with a chemical retardant that prevents the thin film of concrete on the aggregate from drying.

Q&A Related to "How do you pour exposed aggregate concrete?"
1. Form the concrete as you normally would. Forms can be built using 2-by-4-inch boards or pre-built models can be purchased from your local home improvement store. Stake the forms
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Pour a concrete patio within forms that you've built in the size and shape you need. Pour the concrete slowly, then finish the top with a long piece of lumber to smooth it. To find
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You don't. You expose the aggregate that is already in the concrete mix. If you desire a certain size aggregate exposed, order a mix with that aggregate. Wait for the surface to be
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1. Dig a hole twice the width needed for the footing using a manual or gas powered post hole digger. Gas-powered post hole diggers are available for rent from most hardware stores
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1 Additional Answer
Ask.com Answer for: how to pour exposed aggregate concrete
How to Pour Exposed Aggregate Concrete
If you're looking to make a new patio or driveway in your home, consider using exposed aggregate in lieu of regular smooth concrete. This material provides a unique look and texture for your home improvement project. With exposed aggregate, normal... More »
Difficulty: Moderately Easy
Source: www.ehow.com
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