Experimental Study on Bubble Parameters of UHPC with Different Ratios

DOI

10.2991/978-94-6463-658-1_86How to use a DOI?

Keywords

Chord length; Porosity; Spacing coefficient

Abstract

Due to the high viscosity of the slurry during the preparation process of UHPC, a large number of bubbles will be introduced after mixing, reducing the compactness of the concrete and thus affecting the development of UHPC strength. In order to investigate the influence of internal bubbles on the performance of UHPC, this paper experimentally studied the influence of internal bubble parameters and hardened concrete strength of UHPC with different ratios. The results showed that the average chord length of bubbles affects the strength of UHPC, and the shorter the average chord length of bubbles, the greater the strength of UHPC; at a certain gas content, the smaller the bubble size, the smaller the spacing coefficient; the size distribution of bubbles in the No. 2 ratio is more uniform, as small and uniform bubble distribution can enhance the frost resistance and overall performance of the specimen, bubbles can act as buffer spaces, allowing crystallization expansion without damaging the concrete structure, and more effectively dispersing stress; the highest air content is found in the bubbles of the No. 3 ratio, which is due to the maximum porosity in the bubbles. The bubbles should be evenly distributed throughout the entire volume of concrete to ensure consistency in its performance.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Jingliang Zhen
AU  - Huiqing Xue
AU  - Shuyun Wang
AU  - Jia Si
AU  - Junhou Huang
PY  - 2025
DA  - 2025/03/03
TI  - Experimental Study on Bubble Parameters of UHPC with Different Ratios
BT  - Proceedings of the 2024 10th International Conference on Architectural, Civil and Hydraulic Engineering (ICACHE 2024)
PB  - Atlantis Press
SP  - 823
EP  - 832
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-658-1_86
DO  - 10.2991/978-94-6463-658-1_86
ID  - Zhen2025
ER  -