000002107 001__ 2107
000002107 005__ 20141118153442.0
000002107 04107 $$acze
000002107 046__ $$k2013-05-27
000002107 100__ $$aVANGEEM, Martha G.
000002107 24500 $$aOPTIMAL THERMAL MASS AND R-VALUE IN CONCRETE

000002107 24630 $$n1.$$pProceedings of the First International Conference on Concrete Sustainability
000002107 260__ $$bJapan Concrete Institute, Tokyo
000002107 506__ $$arestricted
000002107 520__ $$2eng$$aThe thermal performance of wall systems is determined by two parameters. The steady-state thermal resistance is well established in building codes. Thermal inertia, the reluctance of the wall to change temperature when exposed to a dynamic temperature regime, is considerably more complicated, less well understood and has been approximated in codes and standards by crude assumptions. This paper reports the influence of density, thermal conductivity, and specific heat on the dynamic testing of wall and unit specimens and the impact of these criteria on energy transfer. Results show that for exterior single-layer uninsulated concrete product walls, the beneficial effects of thermal inertia (sometimes referred to as thermal mass) are increased as density is reduced from 2400 kg/m³ (150 lb/ft³) to 800 kg/m³ (50 lb/ft³).

000002107 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000002107 653__ $$aconcrete, concrete masonry, density, lightweight concrete, specific heat, thermal conductivity, thermal damping, thermal diffusivity, thermal inertia, thermal lag, thermal mass, thermal resistance.

000002107 7112_ $$aFirst International Conference on Concrete Sustainability$$cTokyo (JP)$$d2013-05-27 / 2013-05-29$$gICCS13
000002107 720__ $$aVANGEEM, Martha G.$$iRIES, John P.$$iHOLM, Thomas A.
000002107 8560_ $$ffischerc@itam.cas.cz
000002107 8564_ $$s989699$$uhttp://invenio.itam.cas.cz/record/2107/files/S1-9-2.pdf$$y
             Original version of the author's contribution as presented on CD, .
            
000002107 962__ $$r2053
000002107 980__ $$aPAPER