000003014 001__ 3014
000003014 005__ 20141118153411.0
000003014 04107 $$acze
000003014 046__ $$k2010-09-22
000003014 100__ $$aGosselin, C.
000003014 24500 $$aHydration of roman cements used for architectural restoration

000003014 24630 $$n2.$$pHistoric Mortars and RILEM TC 203-RHM Final Workshop
000003014 260__ $$bRILEM Publications s.a.r.l., 157 rue des Blains F-92220 Bagneux - France
000003014 506__ $$arestricted
000003014 520__ $$2eng$$aRoman cement was extensively used to decorate facades during the nineteenth and beginning of twentieth Century. The interest of this material has been revisited recently in the field of conservation of architectural cultural heritage. This article gives preliminary results on the characterization of the raw materials and main reactive phases (using XRD, SEM, selective dissolution and isothermal calorimetry) of a roman cement recently produced from the Lilienfeld marlstone (Austria), in comparison with a commercial roman cement (from Vicat, France). The mineralogical composition of the two cements strongly differs according to the presence of sulphate minerals in the marlstone and the temperature of calcination. Isothermal calorimetry and in-situ XRD carried out on cement paste allow the identification of the AFm and AFt type phases as early age hydration products responsible of the flash setting typical to roman cements. The composition rich in alumina and the crystallinity of dicalcium silicates strongly differs in the Lilienfeld cement and influence their reactivity at the later ages.

000003014 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000003014 653__ $$a

000003014 7112_ $$a2nd Conference and of the Final Workshop of RILEM TC 203-RHM$$cPrague (CZ)$$d2010-09-22 / 2010-09-24$$gHMC2010
000003014 720__ $$aGosselin, C.$$iFeldman, S.B.$$iScrivener, K.L.
000003014 8560_ $$ffischerc@itam.cas.cz
000003014 8564_ $$s870880$$uhttps://invenio.itam.cas.cz/record/3014/files/page_0993.pdf$$y
             Original version of the author's contribution as presented on CD, , page 993.
            
000003014 962__ $$r2907
000003014 980__ $$aPAPER