Publication detail

Application of burnt clay shale as pozzolan addition to lime mortar

VEJMELKOVÁ, E. KEPPERT, M. ROVNANÍKOVÁ, P. KERŠNER, Z. ČERNÝ, R.

Original Title

Application of burnt clay shale as pozzolan addition to lime mortar

Type

journal article - other

Language

English

Original Abstract

Burnt Czech clay shale of different grain fineness is applied as a new pozzolan addition to lime mortar. Experimental results show that the new lime–pozzolan mortars have significantly better mechanical properties and frost resistance than the reference lime mortar. The fineness of burnt Czech clay shale is a very important parameter affecting the properties of lime–pozzolan mortars; the best results are achieved with an average particle size of 4 microm. In a comparison with a lime–metakaolin mortar of the same composition, the frost resistance of the new lime–pozzolan mortars is significantly better, the mechanical, fracture-mechanical, hygric and thermal properties are either comparable or slightly better. Therefore, it can be concluded that the burnt Czech clay shale has a good potential to be used in lime–pozzolan mortars for renovation of historical buildings.

Keywords

Mortar, lime, pozzolan, renovation, architectural heritage

Authors

VEJMELKOVÁ, E.; KEPPERT, M.; ROVNANÍKOVÁ, P.; KERŠNER, Z.; ČERNÝ, R.

RIV year

2012

Released

2. 2. 2012

ISBN

0958-9465

Periodical

CEMENT & CONCRETE COMPOSITES

Year of study

34

Number

bez čísla

State

United Kingdom of Great Britain and Northern Ireland

Pages from

486

Pages to

492

Pages count

7

BibTex

@article{BUT97283,
  author="Eva {Vejmelková} and Martin {Keppert} and Pavla {Rovnaníková} and Zbyněk {Keršner} and Robert {Černý}",
  title="Application of burnt clay shale as pozzolan addition to lime mortar",
  journal="CEMENT & CONCRETE COMPOSITES",
  year="2012",
  volume="34",
  number="bez čísla",
  pages="486--492",
  issn="0958-9465"
}