Aggregates: A World Market
Aggregates for construction is a mining segment produces gross mineral raw material and processed for immediate use in civil construction.
All over the world these products are consumed in large scale. The inhabitants of countries like Canada, Germany, USA and Sweden, consume huge amounts of aggregates, even if they already have their basic infrastructure built. The use of aggregates will of popular houses to mega buildings, urban roads to bridges and railways.
In the USA, for example, the production of grit was about 1.20 million tons in 2013, an increase of 3% in comparison with 2012. Today the country is about 320 million and the USGS (Service uS geological Survey) estimates that 1.31 billion tonnes of gravel were consumed in the United States, according to published in its annual Mineral Commodity Summaries. Of this amount consumed in the United States 1% is imported: 54% comes from Canada, 31% of Mexico, 8% of the Bahamas and 7% from other nations, according to the National Stone, Sand and Gravel Association.
In 2012 IBRAM, Brazilian Institute of Mineral Aggregates, published the annual per capita consumption in Brazil of 3.5 tonnes / capita (th) at the same level of countries with Belgium and Bulgaria, but still below market like Canada that has arrived the 19 th, USA in 2014 yielded 4:08 th, 6 th Japan reportedly in Development Studies for Development of Duodecenal Plan (2010-2030) of Geology, Mining and Mineral Processing, Prod. 22, Rel. 30, the MME.
In the domestic market of mineral production, aggregates are the highlight after the metals. Sand and gravel, are responsible for about 0.6% of the GDP with expectations of average annual growth of around 5% for crushed stone (Plan of the State of Pará Mining 2014-2030).
It happens that worldwide, for each km of subway are consumed 50,000 tonnes (t) of aggregates; Each km of paved road consumes about 9,800 tons; Popular houses of 50 m² is consumed 68 t; Buildings, schools, hospitals consume 1,360 t to 1,000 m². (ANEPAC).
The general aggregate market has essentially local character, with coverage of tens of kilometers and in rare cases, advances the range of action beyond 150 km between the source area and the final consumer.