Aggregate material is essential in the construction of buildings and infrastructure. Aggregate material provides the volume or mass to the concrete and is essential to reduce shrinkage. As such, the use of aggregate helps to reduce the costs associated with the large-scale use of concrete.
The largest part of concrete is taken up by aggregates and it is therefore essential to choose the right sizes, types, and quality of aggregates for the particular construction project. The material affects the properties of the concrete, such as workability, strength, shrinkage, weight and durability. In the past, construction companies looked at aggregate material only as the filling component in the cement mix, but the need to build economically and sustainably has changed the way companies look at aggregate.
With aggregate material being cheaper than cement, it makes sense to use large volumes in cement mixes. However, cost saving is not the only reason for using large quantities of aggregate. Cement on its own does not have the same durability and stability as when mixed with appropriate aggregate material. Aggregate is natural material and because natural materials vary in size and quality according to the location where it is mined, getting the same quality and consistency when using two different suppliers is often difficult.
With the above in mind, it is essential to select an aggregate-material supplier that can provide the type of aggregate needed for your construction projects. Of course, you do not want to end up having to buy some material from another supplier because your usual supplier is unable to fulfil in your bulk needs. For the sake of consistency, select a supplier that can provide large volumes of the material.
Types of aggregate material range from sand to gravel, crushed stone, and rock. Make sure you buy from a supplier that can provide in all your aggregate material needs, whether you need fine or coarse material. Selecting the right aggregates is essential and will have a significant impact on the concrete properties. Determine your needs regarding durability, skid resistance, unit weights, absorption, and grading before you buy the aggregate material. Grading is done to ensure you know the maximum particle size, since this will affect the workability, water requirements, and durability of the concrete mix. Of course, with the right water-to-cement ratio, it is possible to use a wider range of aggregate sizes without adversely affecting the strength of the concrete mix.
Make use of Sand Masters as a bulk supplier of sand and aggregate material to the construction industry in South Africa. We offer the quality and consistency you need and can provide in your bulk material needs.