3. Compact Rocks sillares.jpg Stone blocks of Limestone , Marble, Granite, Slate, etc. mampuesto3.jpg Cutted in square shape. Medium size without cutting. Ashlar Masonry STONY MATERIALS (I) adoquines.jpg In walls… In pavimentation… Cobblestone Losas de pizzarra.bmp Flagstone
4. Disgregated Rocks Variable size Fragments. Sillares STONY MATERIALS (II) Clay-ss-2005.jpg Clay GRAVEL~1.JPG Aggregate Fragments from the action of break down of other rocks. They can be thin or thick . Very little rock grains, chactericed by their property of absorbing water .
16. Before it gets hard, it’s a doughty material and can be putted inside a recipient, like formings (encofrado). CONCRETE (I) Mass Concrete It’s used for walls and cimentation. hormigon en masa.jpg Cyclopean Concrete It contains aggregates wich are more than 30 cm in diameter. It’s also used in walls and cimentations. zapata horm.cicl.png
17. CONCRETE (II) Inside it , there are incorporated a structure of steel bars that can be tensed before the concrete gets hard ( Pre-stressed concrete ) or after it gets hard ( Post-tensed concrete ). Aerated_autoclaved_concrete_-_detail.jpg Reinforced Concrete Cellular Concrete (aerated) pilares horm.armado.jpg Before it gets hard, we add to the doughty concrete some chemicals that create air inside the material, making it lighter and improving the isolation propperties.
