Shale
In cement production, shale is a source of alumina (Al2O3), which is an important ingredient to facilititate efficient formation of clinker minerals. Shale is composed of mainly clay minerals and some fragments of other minerals like quartz and calcite.
Cement corrective to increase strength and to reduce CO2 footprint
Clay in shale is also the main material used in production of bricks, pottery, and other ceramic products.
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Quarry Site
Lugait, Davao, Bulacan
11- 21%
Al2O3
24-45%
SiO2
< 100mm
sizes
Other Products
Limestone
Key ingredient in cement manufacturing
Basalt
Highly durable construction material resistant to heat, wear, weather, and acid
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Pozzolan
Cement filler for greener production
Silica
Vital component for fiberboard manufacturing
Limestone
Key ingredient in cement manufacturing