Effect of CO2 Exposure on Mechanical Resistivity of Cement Pastes with Incorporated Ceramic Waste Powder

Jaroslav Pokorný; Milena Pavlíková; Zbyšek Pavlík

doi:10.4028/www.scientific.net/MSF.824.133

Paper Titles

A Contribution to the Analysis of Water Vapor Transport in Porous Building Materials
p.111

Transport of Liquids in Porous Rocks
p.117

Behavior of Cement Composites Loaded by High Temperature
p.121

A Contribution to the Treatment of Salt Damage in Historical Buildings
p.127

Effect of CO₂ Exposure on Mechanical Resistivity of Cement Pastes with Incorporated Ceramic Waste Powder
p.133

Influence of Cracks on the Properties of Self-Compacting Concrete
p.139

The Influence of Chloride and Nitrite Solution Exposure on Mechanical Properties of Industrially Produced Plaster Mixtures
p.145

Static Modulus of Elasticity of Concrete
p.151

Comparison of Stress-Strain Diagrams in Different Age of the Cement Matrix for Textile Reinforced Concrete
p.155

HomeMaterials Science ForumMaterials Science Forum Vol. 824Effect of CO2 Exposure on Mechanical Resistivity...

Effect of CO₂ Exposure on Mechanical Resistivity of Cement Pastes with Incorporated Ceramic Waste Powder

Abstract:

Carbonation is chemical process associated with CO₂ penetration into the material porous structure causing subsequent chemical changes in the structure of cement pastes. In this work, carbonation of several pastes containing varying amount of cement replacement by three waste ceramic powders is studied. Chemical composition of particular tested materials is accessed using XRF analysis. Matrix density, bulk density, total open porosity, compressive and bending strength are measured for all developed pastes with incorporated ceramic materials. Simultaneously, the effect of carbonation on these material properties is researched. The obtained results show significant improvement of materials mechanical strength due to the carbonation. Here, the measured compressive strength is typically about ~ 60% higher for materials exposed to CO₂ rich environment compared to the materials cured in laboratory conditions.

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Periodical:

Materials Science Forum (Volume 824)

Pages:

133-137

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.824.133

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Online since:

July 2015

Authors:

Jaroslav Pokorný*, Milena Pavlíková, Zbyšek Pavlík

Keywords:

Basic Physical Properties, Carbonation Process, Cement Paste, Ceramic Powder, Chemical Composition, CO₂ Environment, Mechanical Physical Properties

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