LECA is an expanded clay klinkerizada produced in rotary furnaces at a temperature of 1,150 ° and the constituents of the same make forming " 34 balloons; internal finishing the product form of irregular pellets and can get them in 3 sizes up to 30 mm in diameter. The main site is located in Josè Leòn Suárez, Buenos Aires province, and the first rotary furnaces were brought from Denmark in the decda of the 60. The leca is a competition of Boulder.
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