000002246 001__ 2246
000002246 005__ 20141118153437.0
000002246 04107 $$acze
000002246 046__ $$k2013-09-11
000002246 100__ $$aFaria, P.
000002246 24500 $$aNatural hydraulic lime mortars influence of the aggregates

000002246 24630 $$n3.$$pProceedings of the 3rd Historic Mortars Conference HMC13
000002246 260__ $$bGlasgow : University of the West of Scotland, 2013
000002246 506__ $$arestricted
000002246 520__ $$2eng$$aNatural hydraulic lime specifications changed with the new version of standard EN 459-1: 2010 and a new Portuguese NHL3.5 appeared in the market. The characteristics of mortars depend on many different parameters such as the type of binder, the type of aggregates, the use of fillers and of superplasticizers; also on mixing and curing conditions. In this paper NHL3.5 mortars with binder:aggregate volumetric proportions1:3 were prepared, varying the aggregates type and proportions between them. Two coarse sands, a medium sand, a river sand, a finer sand, a calcareous filler and a ceramic powder were used. The two last mentioned aggregates were byproducts from industry. Prismatic mortar samples and samples of mortar applied over brick were prepared and conditioned in two different situations – following standard EN 1015-11 and at 65% relative humidity with initial daily water spray. Mortars were characterized in the fresh state and at the age of 28 days. Results showed the influence namely of the curing, particularly in terms of water capillary, of the superplasticizer and of the fillers. They also showed that NHL3.5 mortars seem to be adequate for old masonries conservation and repair and, in some situations, they can be an alternative to air lime based mortars.

000002246 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000002246 653__ $$anatural hydraulic lime, aggregate, particle size, mortar, characterization

000002246 7112_ $$a3rd Historic Mortars Conference$$cGlasgow, Scotland (UK)$$d2013-09-11 / 2013-09-14$$gHMC13
000002246 720__ $$aFaria, P.$$iSilva, V.
000002246 8560_ $$ffischerc@itam.cas.cz
000002246 8564_ $$s508339$$uhttp://invenio.itam.cas.cz/record/2246/files/Faria - Natural hydraulic lime mortars influence of the aggregates.pdf$$y
             Original version of the author's contribution as presented on CD, .
            
000002246 962__ $$r2223
000002246 980__ $$aPAPER