E3S Web Conf.
Volume 267, 20217th International Conference on Energy Science and Chemical Engineering (ICESCE 2021)
|Number of page(s)||4|
|Section||Environmental Chemistry Research and Chemical Preparation Process|
|Published online||04 June 2021|
Study on the collapsibility sensitivity of loess in different acid environment by consolidometer
1 Shaanxi Key Laboratory of Safety and Durability of Concrete Structures, Xijing University, Xi’an 710123, China.
2 School of Civil Engineering and Architecture, Xi’an University of Technology, Xi’an 710048, China.
a Corresponding author: firstname.lastname@example.org
Cement connection of loess is an important internal factor of loess collapse, which has a direct impact on the sensitivity of the collapse. In this study, different concentrations of nitric acid were added into the immersion water solution of loess collapsibility test. The collapsibility deformation and stability time were measured under different pressure and acid environment. The test results show that: in acid solution, the collapsibility coefficient of collapsible loess increases more under low pressure, and the collapsibility stability time is prolonged under all levels of pressure; Loess has different collapsibility sensitive pressure range in aqueous solution and acidic solution. The structural strength of collapsible loess has an important influence on the depth of collapsible loesr. It is very important to the constructions on the loess area
© The Authors, published by EDP Sciences, 2021
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