Influence of Pozzolanic Additive on Pore Size Distribution of Lime Mortar

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F17%3A00314847" target="_blank" >RIV/68407700:21110/17:00314847 - isvavai.cz</a>

Result on the web

<a href="https://www.scientific.net/MSF.908.51" target="_blank" >https://www.scientific.net/MSF.908.51</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/MSF.908.51" target="_blank" >10.4028/www.scientific.net/MSF.908.51</a>

Result language

angličtina

Original language name

Influence of Pozzolanic Additive on Pore Size Distribution of Lime Mortar

Original language description

Pozzolanic additives are widely applied as components of cementitious composites as well as mortars based on white lime. They are generally recognized as components improving the durability of resulting material – concrete or mortar. The mechanism responsible for this favorable effect lies in physical and chemical modification of initial binding system. The present paper deals with influence of a pozzolanic additive – ceramic dust (CD) – on pore system of lime – based mortar. The CD was characterized by means of elementary and phase analysis. The range of mortars of varying CD/lime ratio was prepared; their pore size distribution, strength and rate of liquid water and water vapor were determined. The presence of CD caused change in the pore size distribution while the total porosity did not changed significantly. The volume of large pores was reduced and amount of fine pores was increased as consequence of growing CD content. It had positive effect on rate of liquid water transport. Diffusion resistance factor was influenced by the presence of CD towards the lower values; in opposite to the liquid sorptivity the diffusion resistance was controlled by the total porosity. The strength was improved by addition of pozzolanic additive as could be expected. It is in accordance with the reduced volume of capillary pores but obviously the presence of pozzolanic additive in lime converts the binding system to hydraulic and thus the effect of CD on strength cannot be explained just by its influence on pore size distribution.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20101 - Civil engineering

Project

<a href="/en/project/GA16-13778S" target="_blank" >GA16-13778S: Waste ceramics as selective sorbent of toxic ions: characterization, methodology and application</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Binders, Materials and Technologies in Modern Construction III

ISBN

978-3-0357-1157-8

ISSN

1662-9752

e-ISSN

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Number of pages

5

Pages from-to

51-55

Publisher name

Scientific.net

Place of publication

Durnten-Zurich

Event location

Brno

Event date

Dec 8, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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