000002354 001__ 2354
000002354 005__ 20141118153435.0
000002354 04107 $$acze
000002354 046__ $$k2013-09-11
000002354 100__ $$aNavarro-Blasco, I.
000002354 24500 $$aObtaining repair lime mortars by mixing aerial lime and nanosilica

000002354 24630 $$n3.$$pProceedings of the 3rd Historic Mortars Conference HMC13
000002354 260__ $$bGlasgow : University of the West of Scotland, 2013
000002354 506__ $$arestricted
000002354 520__ $$2eng$$aThis work deals with the effect of the nanosilica addition on the performance of aerial lime mortars. Several lime mortars were prepared and modified upon the addition of 3, 6, 10 and 20 wt.% of nanosilica. The presence of nanosilica increased the water demand of the fresh mixtures and reduced the appearance of superficial cracks after the spreading of the mortars onto a porous stone. Setting time underwent a delay when the amount of nanosilica ranged from 3 to 10 wt.%. However, samples with 20 wt.% of nanosilica showed a shortened setting time compared to plain lime mortars. Nanosilica reacted with Ca(OH)2 particles, yielding C-S-H compounds and, acting as a nanofiller, nanosilica also caused a pore blockage in the mesoporous range. These facts resulted in an increase in both compressive strength and durability after undergoing freezing-thawing processes. Overall, the addition of nanosilica clearly improves several characteristics of the aerial lime mortars in order to prepare enhanced mixtures to be used for restoration works.

000002354 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000002354 653__ $$awater demand, compressive strength, durability, nanofiller, C-S-H.

000002354 7112_ $$a3rd Historic Mortars Conference$$cGlasgow, Scotland (UK)$$d2013-09-11 / 2013-09-14$$gHMC13
000002354 720__ $$aNavarro-Blasco, I.$$iÁlvarez, J. I.$$iLanas, J.$$iSirera, R.$$iFernández, J. M.$$iDurán, A.
000002354 8560_ $$ffischerc@itam.cas.cz
000002354 8564_ $$s656792$$uhttp://invenio.itam.cas.cz/record/2354/files/Navarro - Obtaining repair lime mortars by mixing aerial lime and nanosilica.pdf$$y
             Original version of the author's contribution as presented on CD, .
            
000002354 962__ $$r2223
000002354 980__ $$aPAPER