Poro(porous)-Therm(Thermal insulation). Porotherm bricks are either Horizontally Perforated or Vertically Perforated clay bricks. Made from de-silting of dead water tanks, coal ash, rice husk, saw dust and granite slurry
Main Advantages:
- 60% less weight than a solid concrete block - Compressive strength 35 kg/cm2 - due the web design - Density of approx.694 - 783 kg/m3 - Large size & low weight - Excellent thermal insulation that's 45% better compared to conventional walling material. - Water absorption
Yes it is absolutely safe. Porotherm clay hollow bricks has been manufactured since May 2009. Such kind of materials are use to cut down the construction cost, aster construction but such kind of houses last for generations.
Main Advantages: 60% less weight than a solid concrete block Compressive strength 3.5 N/mm2 Density of approx. 694 to 783 kg/m3 Large size & low weight Excellent thermal insulation Water absorption ~15%