concrete mix design in new zealand

Concrete Mix Design in NZ A good concrete mix design can create the foundation of a brilliant infrastructure. A concrete mix design involves a process of preparation in which a mix of ingredients creates the required durability and strength for the concrete structure because every ingredient in the mix consists of various properties. But who is reliable to do it? Concrete Mix NZ is here to help you to make a great concrete mix and bears the capacity of the project locations.

The importance of concrete mix design in NZ:

The values of physical properties are obtained after testing and will be used based on the concrete mix design considerations. It will ensure the structure will be sound sand prevent failure of the mix.

It is important to note that the ingredients for the mix should vary from one project to another. So, the physical properties must be

tested for the specified requirements for each location.

The Concrete Mix NZ ingredients to be tested are water, coarse aggregates, fine aggregates sand, cement, soil, reinforcement, and chemicals.

Type of Concrete Mix Design: Two types of concrete mixes are normal and high-performance concrete. They are characterized by their compressive strength such as,

1) Normal Performance Concrete: A normal performance concrete mix design has a performance strength ranging between 30 to 50 MPa. It is like the most used mix of the two.

Normal performance concrete has good workability if all the mixed ingredients are accurate. The freshly mixed concrete can be plastic or semi-fluid so that it can be molded.

2) High-performance Concrete: A high-performance concrete mix has a performance ratio of 60 MPa. The main purpose of using high-performance concrete is to reduce creeping, weight, and permeability issues.

It can improve the durability of the structure and often sticky and hard to be handled and placed. However, it does not cause the cement to bleed the issues normal performance concrete might run into.

Factors that Affect Concrete Mix Design: The durability and strength of the Concrete Mix NZ design depends on the following factors like, 

Choice of cement

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Grade designation

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Type of water

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Choice of aggregate size

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Workability

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Durability

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Water to cement ratio