Influence of the aggregate quality on the physical properties of natural feebly-hydraulic lime mortars.
Citation:
S. Pavia and B. Toomey, Influence of the aggregate quality on the physical properties of natural feebly-hydraulic lime mortars., Materials and Structures, 41, 2008, p559 - 569Download Item:

Abstract:
This paper examines the influence of the
shape, average size and calcite content of the
aggregate on strength, porosity, water absorption,
density and capillary suction of natural feebly-
hydraulic lime (NHL 2) mortars. Four types of
aggregate were analysed in order to determine calcite
content, particle shape and average particle size. Four
different mortar mixes were then designed and
produced using each of the aggregate types and
NHL 2 as a binder. The mixing and curing as well as
the aggregate:binder proportions were kept constant
in order to attribute variation of mortar properties to
the quality of the aggregate. The results suggest that
an increase in the aggregate?s calcite content lowers
the flexural and compressive strength of the mortar.
This study also determined that sharp aggregate as
well as aggregate with a small average particle size
tends to increase the mechanical strength and bulk
density of a mortar simultaneously reducing porosity,
water absorption and capillary suction. Furthermore,
this paper concludes that aggregates containing
particles of a wide size range will also increase the
mechanical strength and bulk density of the hardened
mortar diminishing porosity, water absorption and capillary suction.
Author's Homepage:
http://people.tcd.ie/paviasDescription:
PUBLISHED
Author: PAVIA, SARA
Publisher:
SpringerType of material:
Journal ArticleSeries/Report no:
Materials and Structures;41Availability:
Full text availableKeywords:
Lime mortars, Naturally hydraulic lime (NHL)Licences: