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Slaking and disintegration behavior of mudstone: insights from laboratory experiment and orthogonal images
Abstract The mudstone is undergoing great change and disintegration in cyclic wetting–drying due to the weak durability, and the change is expected to cause geohazards and potential risks for engineering. The probable impact emphasizes the vitality of understanding mudstone disintegration in various environments. Slake durability tests considering four different factors are implemented: (i) only drainage (to simulate moisture environment), (ii) cyclic wetting and drying, (iii) rotation speed of apparatus (frequency of drainage and filling), and (iv) solutions. This work extends the limitation of research by experimentally investigating the four impact factors in mudstone disintegration and analyzing grain size distribution with orthogonal images improving accuracy. In this experiment, four indexes of describing disintegration performance, i.e., slake durability index, grain size gradation, relative breakage, and median grain size were acquired throughout experimental process. This research shows mudstone disintegration should be considered in moisture environment. In comparison, cyclic wetting and drying, high rotation speed, and ion-enriched solution significantly impact and weaken the durability of mudstone. The findings reveal probable impacts may lead to geohazards and potential risks in various exposed environment of mudstones. Grain analysis based on orthogonal images considers grain shape effect of conventionally sieving disintegrated mudstone grains and improves the acquired grain size distribution.
Slaking and disintegration behavior of mudstone: insights from laboratory experiment and orthogonal images
Abstract The mudstone is undergoing great change and disintegration in cyclic wetting–drying due to the weak durability, and the change is expected to cause geohazards and potential risks for engineering. The probable impact emphasizes the vitality of understanding mudstone disintegration in various environments. Slake durability tests considering four different factors are implemented: (i) only drainage (to simulate moisture environment), (ii) cyclic wetting and drying, (iii) rotation speed of apparatus (frequency of drainage and filling), and (iv) solutions. This work extends the limitation of research by experimentally investigating the four impact factors in mudstone disintegration and analyzing grain size distribution with orthogonal images improving accuracy. In this experiment, four indexes of describing disintegration performance, i.e., slake durability index, grain size gradation, relative breakage, and median grain size were acquired throughout experimental process. This research shows mudstone disintegration should be considered in moisture environment. In comparison, cyclic wetting and drying, high rotation speed, and ion-enriched solution significantly impact and weaken the durability of mudstone. The findings reveal probable impacts may lead to geohazards and potential risks in various exposed environment of mudstones. Grain analysis based on orthogonal images considers grain shape effect of conventionally sieving disintegrated mudstone grains and improves the acquired grain size distribution.
Slaking and disintegration behavior of mudstone: insights from laboratory experiment and orthogonal images
He, Junyi (author) / Leng, Yangyang (author) / Wu, Yong (author) / Chang, Wenbin (author) / Zhuang, Yu (author) / Zou, Fengchai (author)
2022
Article (Journal)
Electronic Resource
English
BKL:
56.00$jBauwesen: Allgemeines
/
38.58
Geomechanik
/
38.58$jGeomechanik
/
56.20
Ingenieurgeologie, Bodenmechanik
/
56.00
Bauwesen: Allgemeines
/
56.20$jIngenieurgeologie$jBodenmechanik
RVK:
ELIB18
Slaking and swelling properties of mudstone
| British Library Conference Proceedings | 1981
Triaxial shear behavior of tertiary mudstone crushed by slaking
| British Library Conference Proceedings | 1993
Study on Slaking Particle Distribution Characteristics of Carbonaceous Mudstone
| British Library Conference Proceedings | 2012
Settlement and Disintegration Behavior of Soft Rock by In-situ Exposure and Laboratory Slaking Tests
| British Library Online Contents | 1997