Effect of Vibrating and Sieving Time on the Reliability of Test Results for Gradation Analysis of Fragile Geomaterials

DOI

10.2991/978-94-6463-449-5_47How to use a DOI?

Keywords

fragile geomaterials; vibrating and sieving; particle breakage; gradation analysis; reliability

Abstract

The vibrating and screening is easy to break the particles of brittle geomaterials, which is difficult to obtain real gradation and also brings difficulties to engineering guidance. In order to find out the reliability of the vibrating and sieving method for testing the gradation of fragile geomaterials, the vibrating and sieving test of different time was carried out with coral sands. The results show that the vibrating and sieving time has a great influence on the gradation of coral sands. And the quality of the each particle group coral sands changed considerably in the first 25 min, and the changes slow down after 25 min of vibrating and sieving. Except for coral sands with particle diameters of 10 ~ 20 mm and 1 0.25 ~ 0.5 mm, coral sands with other particle diameters shared a significant change in the vibrating and sieving test. The characteristic particle diameters of coral sands also change most greatly in the first 25 min of of vibrating and sieving. The non-uniformity coefficient C_u and curvature coefficient C_c are changed the most in the first 10 min of vibrating and sieving, and then the non-uniformity coefficient C_u continues to increase, but the curvature coefficient C_c is basically unchanged. Vibrating and sieving continually change the particle size of coral sands, which will cause its gradation to constantly recombine and its properties to constantly change. The reliability of the test results decreases with the vibrating and sieving time.

Copyright

© 2024 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  - Chao Yang
AU  - Shuguang Liu
AU  - Sikai Bai
PY  - 2024
DA  - 2024/06/30
TI  - Effect of Vibrating and Sieving Time on the Reliability of Test Results for Gradation Analysis of Fragile Geomaterials
BT  - Proceedings of the 2024 8th International Conference on Civil Architecture and Structural Engineering (ICCASE 2024)
PB  - Atlantis Press
SP  - 475
EP  - 485
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-449-5_47
DO  - 10.2991/978-94-6463-449-5_47
ID  - Yang2024
ER  -