000003042 001__ 3042
000003042 005__ 20141118153410.0
000003042 04107 $$acze
000003042 046__ $$k2010-09-22
000003042 100__ $$aWilk, D.
000003042 24500 $$aReducing shrinkage cracks in Roman cement renders

000003042 24630 $$n2.$$pHistoric Mortars and RILEM TC 203-RHM Final Workshop
000003042 260__ $$bRILEM Publications s.a.r.l., 157 rue des Blains F-92220 Bagneux - France
000003042 506__ $$arestricted
000003042 520__ $$2eng$$aRoman cements were key materials for the economic and easy manufacture of render (stucco) for the exterior of buildings during the nineteenth and early twentieth century. Fine surface cracks, caused by drying shrinkage, are a distinct characteristic of all Roman cement renders and architectural decorative details. Recently, Roman cements have been re-established in conservation practice. However, the formation of shrinkage cracking is one of the important barriers preventing broader acceptance of Roman cements as a cultural heritage material by the contemporary restoration and construction sector. This paper explores the mechanism of shrinkage cracking in Roman cement mortars by determining the drying shrinkage and the tensile properties of the mortars submitted to various curing and drying periods. Moisture content gradients in the mortar body on fast drying i.e. differential shrinkage between the surface and the centre of the element are considered. Optimum curing conditions minimising the damage processes are discussed.

000003042 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000003042 653__ $$a

000003042 7112_ $$a2nd Conference and of the Final Workshop of RILEM TC 203-RHM$$cPrague (CZ)$$d2010-09-22 / 2010-09-24$$gHMC2010
000003042 720__ $$aWilk, D.$$iKozłowski, R.$$iBratasz, Ł.
000003042 8560_ $$ffischerc@itam.cas.cz
000003042 8564_ $$s349678$$uhttp://invenio.itam.cas.cz/record/3042/files/page_1265.pdf$$y
             Original version of the author's contribution as presented on CD, , page 1265.
            
000003042 962__ $$r2907
000003042 980__ $$aPAPER