Thermal Mass Effect of Solid Block Aerated Autoclaved Concrete Bryan Urban, Diana Elliott, Nitin Shukla, Jan Kosny, Fraunhofer CSE Michael McDonough, Architect P.C., New York, NY Author Contacts: Bryan Urban (Presenter) Dr. Jan Kosny (PI) bbuurrbbaann@@ffrraauunnhhooffeerr..oorrgg jjkkoossnnyy@@ffrraauunnhhooffeerr..oorrgg CESBP 2013 Tuesday, Sept. 10, 2013 Vienna, Austria © Fraunhofer USA Background © Fraunhofer USA Three Walls pre-cast panels cast in place concrete block $$$ $$$ $ © Fraunhofer USA 1 billion per yr 8800 mmiilllliioonn mm22 1 of these… © Fraunhofer USA © Fraunhofer USA Aerated Autoclaved Concrete (cid:1) Invented in mid 1920s by Swedish Architect Advantages (cid:1)(cid:1) LLiigghhtteerr wweeiigghhtt (cid:1) 20% the weight of concrete (cid:1) Up to 80% air by volume (cid:1) Lower transport cost (cid:1) Easier to shape with tools onsite (cid:1) Insulating and energy savings? © Fraunhofer USA © Fraunhofer USA © Fraunhofer USA © Fraunhofer USA © Fraunhofer USA