https://graestone.com/wp-admin/admin.php?page=wpcf7 Frequently Asked Questions - Graestone Ready Mix

Number one in concrete mix quality and on time product delivery.

Frequently Asked Questions

FAQ

What is the Difference Between Cement and Concrete?

Cement is a powder that is made by combining limestone and other ingredients and then heating them to 1400°C in a roller kiln and then grinding the “clinker” into a fine powder. Concrete is a mixture of cement, aggregate, water, and admixtures. It is the most versatile building material in the world.

How Do You Measure the Strength of Concrete?

Concrete is sampled in cylinders and then the hardened samples are broken under a compression testing machine. The unit of measure is a Mega Pascal (MPa). Concrete strengths range from 5-100+ MPa.

How Long Does Concrete Take to Cure?

The standard length of time for concrete to reach its design strength is 28 days.

Is Concrete Always Gray?

The standard colour for concrete is gray as the raw materials are all gray. Concrete can be made into many colours by the addition of coloured admixtures.

Does Concrete Require Maintenance?

Concrete can last for 100 years or longer with very little maintenance. In damp environments, concrete needs to be cleaned by washing it to keep it free of debris and dirt.

Is Cracking Normal?

Yes, concrete does crack as it shrinks when it cures. With proper preparation and control joints, cracking can be minimized and controlled.

How Is Concrete Measured?

Concrete is measured by volume. In Canada, concrete volume is measured in cubic metres (m3).

Is Concrete Recyclable?

Yes, concrete is recyclable. Leftover concrete is poured into forms that make interlocking blocks that are used for retaining walls and foundations for portable structures. Hardened concrete is crushed up and used as fill for roads and buildings.

Number One in Product Quality & On Time Delivery.

Request a Quote