Concrete Newcastle | Best Quality Concreting in Newcastle

Concrete is a major building and construction material in Australia, and its production involves various companies from across the country. Australia’s concrete industry comprises producers who provide raw materials such as cement, sand, aggregates and admixtures. These inputs are then used to manufacture concrete products for use around the world.

Concrete in Australia generally falls under the grades of C10, C15, C20, C25 and C30. These define the strength of a concrete mix and are based on their compressive strength in Newtons per square millimetre (N/mm2). Grade 10 is the lowest grade of concrete with a characteristic compressive strength of 10 N/mm2, while grade 30 is the strongest with a characteristic compressive strength of 30 N/mm2. Concrete can also be classified into higher-strength categories such as 40 and 50 for specialist applications. The levels of cement content used to achieve these various grades vary from country to country; however, it’s important to note that all cement used must meet certain quality requirements set out by Australian Standard AS 1379-2007: Specification for cementitious materials for use in concrete - Concrete.

The mix ratio for concrete in Australia depends on the type of construction and its purpose. Generally speaking, concrete in Australia is usually made with a ratio of 1 part cement, 2 parts sand and 4 parts aggregate (gravel or crushed rock). This ratio is best used when making general-grade concrete mixes that are typically found in structural applications such as retaining walls, footings and driveways. The water content should be calculated according to the amount needed to achieve optimal workability. It is important to note that environmental conditions may affect how much water needs to be included. Furthermore, this standard mix ratio may need to be altered depending on what type of use the concrete will ultimately experience.