000003028 001__ 3028
000003028 005__ 20141118153410.0
000003028 04107 $$acze
000003028 046__ $$k2010-09-22
000003028 100__ $$aPapayianni, I.
000003028 24500 $$aGrouts for injection of historical masonries: influence of the binding system and other additions on the properties of the matrix

000003028 24630 $$n2.$$pHistoric Mortars and RILEM TC 203-RHM Final Workshop
000003028 260__ $$bRILEM Publications s.a.r.l., 157 rue des Blains F-92220 Bagneux - France
000003028 506__ $$arestricted
000003028 520__ $$2eng$$aGrouting of historical masonries has been a widely used technique for regaining their integrity or strengthening them. Since cement-based grouts proved very strong and in some cases destructive for these old masonries, grouts based on a lime-pozzolan binding system have been developed by researchers as an alternative, meeting compatibility issues required for repair interventions. In this paper a number of grout compositions based on lime and other traditional binders are studied with and without additions of limestone filler and nano particles of silica. In some, a small quantity of white cement (15%w.t) was incorporated into the system. Apart from the different constituents of the binding system, the addition of admixtures was used for improving the properties of grouts. Rheological properties, such as flowability, volume stability and penetrability of the grouts were measured in the fresh state. Mechanical properties of dried grouts as well as of grouted sand were checked. Volume changes due to drying shrinkage of grouts were recorded after demoulding and up to 28 days. The microstructure of the dried grouts of the control mixture and that with silica nano particles was examined by stereoscope, image analysis and DTA-TG methodology.

000003028 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000003028 653__ $$a

000003028 7112_ $$a2nd Conference and of the Final Workshop of RILEM TC 203-RHM$$cPrague (CZ)$$d2010-09-22 / 2010-09-24$$gHMC2010
000003028 720__ $$aPapayianni, I.$$iPachta, V.$$iStefanidou, M.
000003028 8560_ $$ffischerc@itam.cas.cz
000003028 8564_ $$s246066$$uhttp://invenio.itam.cas.cz/record/3028/files/page_1123.pdf$$y
             Original version of the author's contribution as presented on CD, , page 1123.
            
000003028 962__ $$r2907
000003028 980__ $$aPAPER