Comparison of lightweight aggregate and foamed concrete with the same density level using image-based characterizations

Sang Yeop Chung, Mohamed Abd Elrahman, Ji Su Kim, Tongseok Han, Dietmar Stephan, Pawel Sikora

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Lightweight concrete is a special type of concrete with low density and advanced insulation, mainly produced using lightweight aggregates or a cellular matrix. Concrete material made of lightweight aggregates is called lightweight aggregate concrete, while material made from a cellular matrix is generally called foamed concrete because of the pores introduced by a foaming agent. Both lightweight concrete types have different characteristics due to their different compositions. In this study, the material properties and characteristics of these lightweight concretes were investigated and compared. A series of foamed and lightweight aggregate concrete specimens with the same density level were produced, with their mechanical and thermal properties being evaluated using sensitive measurement tools. X-ray micro-computed tomography (μ-CT) and scanning electron microscopy (SEM) were used to characterize each material, using image-based techniques. The results brought to light the details of each lightweight concrete, at the microstructural level, in regard to their material properties and showed that the properly designed lightweight aggregate concrete can be more beneficial in mechanical performance by minimizing the loss of the insulation.

Original languageEnglish
Pages (from-to)988-999
Number of pages12
JournalConstruction and Building Materials
Volume211
DOIs
Publication statusPublished - 2019 Jun 30

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Concretes
Concrete aggregates
Insulation
Materials properties
Blowing agents
Tomography
Thermodynamic properties
X rays
Mechanical properties
Scanning electron microscopy
Chemical analysis

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

Cite this

Chung, Sang Yeop ; Abd Elrahman, Mohamed ; Kim, Ji Su ; Han, Tongseok ; Stephan, Dietmar ; Sikora, Pawel. / Comparison of lightweight aggregate and foamed concrete with the same density level using image-based characterizations. In: Construction and Building Materials. 2019 ; Vol. 211. pp. 988-999.
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Comparison of lightweight aggregate and foamed concrete with the same density level using image-based characterizations. / Chung, Sang Yeop; Abd Elrahman, Mohamed; Kim, Ji Su; Han, Tongseok; Stephan, Dietmar; Sikora, Pawel.

In: Construction and Building Materials, Vol. 211, 30.06.2019, p. 988-999.

Research output: Contribution to journalArticle

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