... produced to have a low density, the concrete can also be used for its structural strength however a higher density aggregate would be required for this purpose. If a concrete uses fine aggregates from natural sources, the particular density of that coarse aggregate in the compacted concrete needs to be in the region of between 650kg/m3 to 1850 kg/m3 depending on the use of the concrete. It is the coarse aggregate that determines the density of concrete. The advantages of using lightweight aggregate concrete There are many benefits from using lightweight aggregates. Firstly the density can be reduced; this is an advantage because lightweight concrete can be made from a lower density which will therefore make the concrete lighter by up to 50%. This reduction in density would not effect the strength of the concrete, if a lightweight aggregate concrete was used on a structure it will have a huge significant effect on ...

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