Mechanical-thermal characteristics of foamed ultra-lightweight composites
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27120%2F20%3A10246328" target="_blank" >RIV/61989100:27120/20:10246328 - isvavai.cz</a>
Result on the web
<a href="https://www.researchgate.net/publication/344945681_Mechanical-thermal_characteristics_of_foamed_ultra-lightweight_composites/link/5faa4558299bf10f7335119a/download" target="_blank" >https://www.researchgate.net/publication/344945681_Mechanical-thermal_characteristics_of_foamed_ultra-lightweight_composites/link/5faa4558299bf10f7335119a/download</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.18720/MCE.98.2" target="_blank" >10.18720/MCE.98.2</a>
Alternative languages
Result language
angličtina
Original language name
Mechanical-thermal characteristics of foamed ultra-lightweight composites
Original language description
Turning waste into construction materials recently gets much attention from the researchers in the world due to the advantages of not only the eco-friendly environment but also the positive enhancement of material characteristics. Thus, this study investigates the feasibility of the use of a ternary mixture consisting of cement, ground granulated blast-furnace slag (GGBFS), and fly ash (FA) for producing foamed ultra-lightweight composites (FULC) with the designed dry density of approximately 700 kg/m3. The FULC specimens were prepared with various FA/GGBFS ratios (16/24, 20/20, and 24/16) and foaming agent/water ratios (1/60, 1/80, 1/100, and 1/120). The constant water-to-binder ratio of 0.2, cement content of 40 % by mass, and superplasticizer dosage of 0.2 % by mass were applied for all FULC mixtures. Properties of the FULC specimens were evaluated through laboratory tests of compressive strength, dry density, thermal conductivity, water absorption, and thermal behavior following the relevant ASTM standards. Additionally, both the microstructure observation and cost analysis of all FULC mixtures was performed. Test results show that reducing GGBFS content resulted in a reduction in the compressive strength, dry density, thermal conductivity, and cost of the FULC. A similar trend could be observed when reducing the concentration of foam in the FULC mixtures. As the results, the 28-day compressive strength, dry density, thermal conductivity, water absorption, and cost of the FULC were in the ranges of 4.41-5.33 MPa, 716-729 kg/m3, 0.163-0.182 W/mK, 41.5-48.5 %, and 15.3-20.9 USD/m3, respectively. Furthermore, the FULC exhibited excellent performance under fire conditions as the maximum temperature at the internal surface of the FULC and the normal brick walls were 122 oC and 318 oC after 120 minutes of firing, respectively. Consequently, both GGBFS and FA had enormous potential for the production of FULC. (C) Huynh, T.-P.,Ho. N.-T., Bui, P.-T.,Do, N.-D.,Nguyen, T.-C., 2020
Czech name
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Czech description
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Classification
Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
20100 - Civil engineering
Result continuities
Project
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Continuities
N - Vyzkumna aktivita podporovana z neverejnych zdroju
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Magazine of Civil Engineering
ISSN
2712-8172
e-ISSN
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Volume of the periodical
98
Issue of the periodical within the volume
6
Country of publishing house
RU - RUSSIAN FEDERATION
Number of pages
12
Pages from-to
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UT code for WoS article
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EID of the result in the Scopus database
2-s2.0-85097810779