Quantitative Analysis of Relationship Between Pore Structure and Compressive Strength of Foamed Concrete

Quantitative Analysis of Relationship Between Pore Structure and Compressive Strength of Foamed Concrete

The effect of dry density,water-cement ratio,the addition of fly ash,and sand content on the porosity and pore distribution of foamed concrete is investigated.Digital microscopy and Image J software are employed to examine the landscape of pores with different sizes.Based on the Balshin empirical fo...

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Veröffentlicht in:Transactions of Nanjing University of Aeronautics & Astronautics 2018-06, Vol.35 (3), p.556-564
Hauptverfasser: Geng, Fei, Yin, Wanyun, Xie, Jianguang, Liu, Shoucheng, Li, Haoran, Gui, Jingneng
Format: Artikel
Sprache:chi ; eng
Schlagworte:
Compressive strength
Concrete
Digital imaging
Empirical analysis
Fly ash
Parameter modification
Porosity
Quantitative analysis
Water-cement ratio
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Zusammenfassung:The effect of dry density,water-cement ratio,the addition of fly ash,and sand content on the porosity and pore distribution of foamed concrete is investigated.Digital microscopy and Image J software are employed to examine the landscape of pores with different sizes.Based on the Balshin empirical formula,a mathematical model is established to quantitatively predict the relationship between the pore structures and the compressive strength of foamed concrete.The results well demonstrate that there is a significant correlation between the modified formula and empirical parameters.
ISSN:1005-1120
DOI:10.16356/j.1005-1120.2018.03.556