Pumice Concrete

Pumice Concrete

 

a lightweight concrete in which pumice or expanded slag is the aggregate. Varieties of pumice concrete are named according to their use. Thus, thermal-insulating pumice concrete is used primarily in multilayer enclosing members; structural thermal-insulating pumice concrete is used primarily in solid wall panels; and structural pumice concrete is used in load-bearing elements of buildings and other structures. The bulk density of pumice concrete ranges from 500 to 1,800 kg/m3, the compressive strength ranges from 0.5 to 30 meganewtons/m2, and the coefficient of thermal conductivity ranges from 0.15 down to 0.7 watts/m3 = °K. The modulus of elasticity of pumice concrete is roughly one-half that of normal weight (heavy) concretes.

pumice concrete

A lightweight concrete that has pumice as the coarse aggregate and provides relatively good thermal insulation.
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Type and scope of performance: The ceilings are to be removed in the area of the steel stone ceilings, which are mainly in the classrooms, with hollow body blocks made of pumice concrete damage, to close openings and to re-create them in order to restore the predefined fire protection requirements to the existing structure.
46 m Brickwork: 85 m Clinker brickwork in steel shelves new, 20 m clinker brickwork with reclaimed clinker stones, 200 m Joining of the brickwork Corrosion protection: 435 m SA 2,5 with triple coating of steel profiles Concrete restoration: 135 m Concrete surfaces of pumice concrete and slab ceilings, 126 p.