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Bulletin of Engineering Geology and the Environment

Erschienen in:

01.08.2015 | Original Paper

Rapid field evaluation of the strength of cement-stabilized clayey soil

verfasst von: Zhi-Feng Wang, Shui-Long Shen, Zhen-Yu Yin, Ye-Shuang Xu

Erschienen in: Bulletin of Engineering Geology and the Environment | Ausgabe 3/2015

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Abstract

This paper presents an investigation into the hardness and unconfined compressive strength (UCS) of cement-stabilized Shanghai clay. Various specimens with different cement content and curing time were made in order to conduct hardness tests and unconfined compression tests. The Shore-A durometer was used in a pioneer manner to measure the hardness of stabilized clay. Hardness tests suggest that the measured values of degree of hardness ranged from 1 to 87 DH, and the unconfined compression tests showed that the measured UCS varied from 56 to 1,061 kPa. Test results indicate that the average degree of hardness decreases dramatically with an increase in the clay-water/cement ratio. It is shown that the relationship between the degree of hardness and the curing time is approximately linear in the semi-logarithmic plot. An exponential equation is proposed to express the unique relationship between the UCS (q _u) and the ratio of degree of hardness (S/S _r) by regression analysis. The expected prediction range of UCS using the Shore-A durometer was calculated to be between 0.04 and 1.79 MPa. The exponential equation proposed in this study may be used to produce a quick prediction of UCS by measuring the hardness of samples in the field.

Vorheriger Artikel Smectite clay identification and quantification as an indicator of basic igneous rock durability

Nächster Artikel Analysis of the historical collapse of an abandoned underground chalk mine in 1961 in Clamart (Paris, France)

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Titel: Rapid field evaluation of the strength of cement-stabilized clayey soil
verfasst von: Zhi-Feng Wang
Shui-Long Shen
Zhen-Yu Yin
Ye-Shuang Xu
Publikationsdatum: 01.08.2015
Verlag: Springer Berlin Heidelberg
Erschienen in: Bulletin of Engineering Geology and the Environment / Ausgabe 3/2015
Print ISSN: 1435-9529
Elektronische ISSN: 1435-9537
DOI: https://doi.org/10.1007/s10064-014-0643-3

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