The Behavioural Framework of a Lightly Cemented High Plasticity Clay Under Low Effective Stresses

2019 ◽  
Vol 37 (5) ◽  
pp. 4269-4283
Author(s):  
Smaragda Efthymiou ◽  
Michael Kavvadas
Keyword(s):  
High Plasticity ◽  
Effective Stresses ◽  
High Plasticity Clay

Stabilization of clayey subgrade with waste pumice for road infrastructure

2015 ◽  
Vol 22 (5) ◽  
Author(s):  
Ömür Çimen ◽  
Mehmet Saltan ◽  
S. Nilay Keskin
Keyword(s):  
Mechanical Properties ◽  
Road Construction ◽  
High Plasticity ◽  
Test Results ◽  
Index Properties ◽  
Compression Tests ◽  
Unconfined Compression ◽  
Swelling Potential ◽  
Project Costs ◽  
High Plasticity Clay

AbstractHigh-plasticity clayey subgrade, which is unsuitable for road construction, may sometimes occur along highway routes. In such cases, engineers need to change the route of a highway project, resulting in an increase in road length and project costs. In this study, waste pumice was examined for stabilization of high-plasticity clayey subgrade, which is inappropriate for road construction. For this purpose, the physical and index properties of clay and pumice were determined. Then, the pumice was mixed with high plasticity clay at different ratios by weight. By performing standard Proctor compaction tests on the mixtures, the effects of adding pumice on compaction were also studied. Unconfined compression tests and California bearing ratio (CBR) tests were performed on all pumice-clay mixtures, and the test results and the CBR ratios were compared for each sample, respectively. The results showed that pumice stabilization improved the mechanical properties and reduced the swelling potential of high plasticity clayey subgrade.

Analysis of Three Dimensional Nonlinear Coupled Finite Element Based on some Concrete Rock-Fill Dam

2014 ◽  
Vol 998-999 ◽  
pp. 522-525
Author(s):  
Juan Juan Jin ◽  
Min He ◽  
Peng Liu
Keyword(s):  
Finite Element ◽  
Three Dimensional ◽  
High Plasticity ◽  
Element Analysis ◽  
Rock Fill ◽  
Arching Effect ◽  
Earth Core ◽  
Gravel Soil ◽  
High Plasticity Clay ◽  
The Difference

As the future highest dam in the world, Shuang Jiang Kou rock-fill dam was the water retaining structure of homonymous hydropower station, a controlling engineering on Da Du River hydropower development, which is under design now. This dam is a central earth core dam with a height of 312 meters. A type of gravel soil stiffer than clay, which is made by artificial compounding of clay and gravel, is introduced to reduce the difference in displacement of earth core and rock filled shell zone. Because of the introduced less flexible central core, a more remarkable arching effect of the abutment on earth core might occur simultaneously. A three dimensional coupled nonlinear finite element analysis is carried out to study the three dimensional arching effect of Shuang Jiang Kou rock-fill dam. Computation results show that the arching effect is much notable. Then an innovation is proposed in design, in which a contact high-plasticity clay layer is introduced. It is verified that this innovation is effective and necessary.

Water Retention and Compressibility of a Lime-Treated, High Plasticity Clay

2013 ◽  
Vol 31 (4) ◽  
pp. 1171-1185 ◽  
Author(s):  
Maria Mavroulidou ◽  
Xiwei Zhang ◽  
Michael J. Gunn ◽  
Zeljko Cabarkapa
Keyword(s):  
Water Retention ◽  
High Plasticity ◽  
High Plasticity Clay

scholarly journals EFFECT OF ADDING WOOD POWDER ASH ON CBR VALUE IN STABILIZED HIGH PLASTICITY CLAY CEMENT AND LIME

ASTONJADRO ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 301
Author(s):  
Soewignjo Agus Nugroho ◽  
Ferry Fatnanta ◽  
Muhammad Faizal Alridho
Keyword(s):  
Industrial Waste ◽  
Rice Husk Ash ◽  
High Plasticity ◽  
Wood Powder ◽  
Curing Time ◽  
Test Results ◽  
Stabilizing Agents ◽  
Soft Clays ◽  
Pozzolanic Materials ◽  
High Plasticity Clay

<p>Cement and lime are widely used as stabilizing agents for soft clays. Some pozzolanic materials have also been used as additives such as asphalt, geosta, fly ash (geopolymer), base ash, salt. Industrial waste such as rice husk ash, coal burning ash (geopolymer) is also used as an alternative for stabilization materials. This research aims to study the effect of sawdust ash, as wood waste, to replace cement and lime on the stabilization of high plasticity clay. The effectiveness of sawdust ash, in this study, was evaluated from the CBR value. The test samples were also reviewed under conditions with and without immersion and with and without curing. Based on the test results, lime is very effective as an additive because it increases the CBR value of more than 100 at a level of 10%. Wood husk ash also increases the CBR value by 100%. The use of cement, lime and wood husk ash requires curing time so that there is a strong bond between the clay and additives. The use of additives without curing did not increase the CBR value. In the stabilization of clay with 10% lime, replacement of lime with wood husk ash by 4%-6%, can be used as a road sub-grade with good quality.</p>

Strength and micro-mechanism of MK-blended alkaline cement treated high plasticity clay

2020 ◽  
Vol 236 ◽  
pp. 117567
Author(s):  
Qian Guo ◽  
Mingli Wei ◽  
Haoliang Wu ◽  
Yizhong Gu
Keyword(s):  
High Plasticity ◽  
High Plasticity Clay
Sign in / Sign up

Export Citation Format

Share Document