Granite quarries
Technological revolution in granite quarries
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With Explosive
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With CRAS
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Great deal of rubble
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25% TO 32% savings in saleable material
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Microcracks
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Clean material WITHOUT MICROCRACKS
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- Extraction of large blocks.
- 540 m3 = High power.
- Blocks made "in situ".
- Savings in saleable material: cutting thickness only 0.15 m.
100% increased production. As no safety measures are required, the production process is rationalised and perforation is reduced 50%.
"Since we begin to use expansive cement, our production was doubled. Furthermore, we have now a guarateed quality of material. Using expansive cement you will be able to plan the cutting of granite slices, and this makes the productivity grow."
António Carneiro, Owner
CN do Brasil Mineraçao