000003046 001__ 3046
000003046 005__ 20141118153410.0
000003046 04107 $$acze
000003046 046__ $$k2010-09-22
000003046 100__ $$aZiegenbalg, G.
000003046 24500 $$aNano-lime - a new material for the consolidation and conservation of historic mortars

000003046 24630 $$n2.$$pHistoric Mortars and RILEM TC 203-RHM Final Workshop
000003046 260__ $$bRILEM Publications s.a.r.l., 157 rue des Blains F-92220 Bagneux - France
000003046 506__ $$arestricted
000003046 520__ $$2eng$$aThe consolidation and conservation of historic mortars requires materials which are compatible with the components originally used. The application of nano-lime offers such a possibility. Lime nano-particles are stable when dispersed in different alcohols. The particles have sizes ranging between 50 and 250nm. Typical concentrations in such dispersions are between 5 and 50g/L. Ethanol, n-propanol and iso-propanol are used as solvents. Treatment of mortar with nano-lime results, after evaporation of the alcohol, in the formation of solid calcium hydroxide. This converts into CaCO3 in a way similar to traditional lime mortars by reaction with atmospheric carbon dioxide. The solvent evaporates without leaving any unwanted residues. Another possibility to consolidate mortar is the combined treatment with esters of silicic acid. The calcium carbonate nanoparticles formed after the nano-lime treatment catalyse the gel formation resulting in improved mechanical properties. This paper gives an overview of the typical properties of calcium hydroxide nano-sols and summarises a number of laboratory tests on them.

000003046 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000003046 653__ $$a

000003046 7112_ $$a2nd Conference and of the Final Workshop of RILEM TC 203-RHM$$cPrague (CZ)$$d2010-09-22 / 2010-09-24$$gHMC2010
000003046 720__ $$aZiegenbalg, G.$$iPianski, J.$$iBrümmer, K.
000003046 8560_ $$ffischerc@itam.cas.cz
000003046 8564_ $$s333764$$uhttp://invenio.itam.cas.cz/record/3046/files/page_1301.pdf$$y
             Original version of the author's contribution as presented on CD, , page 1301.
            
000003046 962__ $$r2907
000003046 980__ $$aPAPER