Building materials are significant contributor of indoor radon after the soil. The indoor radon level depends upon the radon flux coming out from wall, ceiling and roofs of the dwellings. The radon flux from the wall that in most cases is concrete depends upon many factors like radium content, porosity, moisture, composition of mix design for construction of concrete and age of concrete. The pr...

Concrete is a building material, which in many cases fulfills the requirements for high sustainability. Industrial by-products, e. g. fly ash or silica fume, are used for improving the fresh and hardened properties of concrete, blast furnace slag for cement production, but also concrete by itself can be used as aggregate to produce strong and durable concretes. In this contribution examples of ...

Prvok is the first 3D printed concrete floating house in Czech republic. Additive manufacturing - printing became a synonym of sustainable building 21st century. Its experimental manner and lack world's standardisation ISO approvals hold method on edge usability applicability stop broader spread application practice. Furthermore, used material was newly developed cement composite prefabricated ...

Waters’ variant of the Boneh-Boyen IBE scheme is attractive because of its efficency, applications, and security attributes, but suffers from a relatively complex proof with poor concrete security. This is due in part to the proof’s “artificial abort” step, which has then been inherited by numerous derivative works. It has often been asked whether this step is necessary. We show that it is not,...

This research proposes an integrated building evaporative cooling assembly using pervious concrete acting as a thermally active system. The proof‐of‐concept prototype demonstrates the capacity of t...