Publication detail

Mechanical, durability and hydrothermal properties of concrete produced using Portland cement-ceramic powder blends

Kulovaná, T., Vejmelková, E., Keppert, M., Rovnaníková, P., Keršner, Z. and Černý, R.

Original Title

Mechanical, durability and hydrothermal properties of concrete produced using Portland cement-ceramic powder blends

Type

journal article in Web of Science

Language

English

Original Abstract

Blended Portland cement-ceramic powder binder containing up to 60% of fine-ground waste ceramics from a brick factory is used in concrete mix design, as an environmental-friendly alternative to the commonly used Portland cement. The experimental analysis of basic physical characteristics, mechanical and fracture-mechanical properties, durability properties and hygrothermal characteristics shows that the optimal amount of ceramic powder in the mix is 20% of the mass of blended cement. The decisive parameters in that respect are the compressive strength, liquid water transport parameters and resistance against deicing salts which are not satisfactory for higher ceramics dosage in the blends. In the case of other studied parameters, the limits for the effective use of ceramic powder are higher, 40% for the effective fracture toughness and specific fracture energy, 60% for the frost resistance and chemical resistance to MgCl2, NH4Cl, Na2SO4, HCl and CO2. The water vapor diffusion coefficient is found to increase with the increasing content of ceramics which for wet envelopes can be considered as a positive feature but for dry envelopes it may have a negative effect. The thermal conductivity of all mixes increases fast with growing moisture content; up to 50% differences between the dry- and water-saturated-state values are observed. This has to be taken into account in energy-related calculations.

Keywords

cement,brick body, concrete, mechanical properties, fracture properties, hygric properties, thermal properties, corrosin resistance

Authors

Kulovaná, T., Vejmelková, E., Keppert, M., Rovnaníková, P., Keršner, Z. and Černý, R.

Released

1. 3. 2016

Publisher

fib - Intrnational Federation for Structural Concrete

Location

Berlin Germany

ISBN

1464-4177

Periodical

Structural Concrete

Year of study

17

Number

1

State

Federal Republic of Germany

Pages from

105

Pages to

115

Pages count

11

BibTex

@article{BUT123166,
  author="Tereza {Kulovaná} and Eva {Vejmelková} and Martin {Keppert} and Pavla {Rovnaníková} and Zbyněk {Keršner} and Robert {Černý}",
  title="Mechanical, durability and hydrothermal properties of concrete produced using Portland cement-ceramic powder blends",
  journal="Structural Concrete",
  year="2016",
  volume="17",
  number="1",
  pages="105--115",
  doi="10.1002/suco.201500029",
  issn="1464-4177"
}