NJK Constructions

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Why do I need to have my aggregate concrete sealed?

This concrete has an open pore design and a larger surface area so the surface is more vulnerable to damage from water and contaminants.

If I have recently installed a new aggregate driveway, will it be sealed?

Sealing is the final step in aggregate concrete installation and most reputable companies include this as part of their installation services.

How do I know if it needs re-sealing?

Generally speaking, aggregate driveways need to be re-sealed once every two years. Commercial premises may be re-sealed more often.

What is Cement and how is it made?

Cement is a type of binder, a substance that sets and hardens when added with water, or any other inert durable materials like stone and sand.

What is the difference between Cement and Concrete?

Cement is an additive that provides the basis for the glue that holds concrete. Concrete is a mixture of aggregates and sand with water and cement.

What can Concrete be used for?

Buildings, bridges, slabs, piping, inside and outside flooring, streets, driveways, are some instances where concrete may be applied.

What is involved in Polishing Concrete?

Polishing concrete involves grinding concrete that has been treated with a chemical densifier that removes blemishes, and increases density.

What does exposed concrete mean?

After the concrete has been placed, a surface retarder is then applied to delay the top layer of cement from setting.

Do we need soak wells?

Areas that are fully surrounded by walls (no matter how low) where water has nowhere to go will need a soak well.