40mm Aggregate (Non Returnable)
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In the form of a raw material aggregates can be put to many uses, but some certain tasks may require a specific type of aggregate.
The largest proportion of the primary aggregate was used to manufacture concrete (36%), with a further 10% used to manufacture the cement that is also used in the concrete. Used in roads was the second largest category (26%), while 20% of aggregates were used in other construction uses & fills and another 2% were used for railway ballast. However materials that are suitable for use as aggregates can also be used to manufacture other products thus industrial and other uses amounted to 6% with the remainder split between the manufacture of mortar (4%), glass (1%) and use in agriculture (1%).