Test on Mechanical Properties of Cemented Soils Using Secondary Development Data Acquisition Test System

Shi, Xiaoxing; Li, Wang

doi:10.1109/icmtma.2015.271

Cited by 1 publication

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“…In the conclusions, they note their experience in creating "project required concrete mixes." Shi and Li (2015) present work on a cemented soil from a railroad subgrade to show the relationship between strength and stiffness of soil using consolidated-undrained triaxial testing. They note that most researches focus on strength and deformation, not stiffness when presenting data.…”

Section: Chapter II Literature Reviewedmentioning

confidence: 99%

A new approach for evaluating the ductility, volumetric stiffness and permeability of cut-off wall backfill materials

Ostrowsky

2017

DFI Journal - The Journal of the Deep Foundations Institute

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The behavior of soil-cement and plastic-concrete cut-off walls in dams is critically affected by ductility and volumetric stiffness. Post-construction deformation of cut-off walls is common due to the differences in strength and stiffness of the wall and the surrounding embankment material and changes in loading due to changes in the seepage regime. Conventional concrete barriers crack as they deform creating regions of high permeability and concentrated flow in the cracked region. Ductile barriers, such as soil-bentonite walls will deform without cracking, but lack structural integrity. The behavior of intermediate materials, such as soil-cement and plastic concrete, are currently not well understood.A laboratory testing procedure has been developed to quantify the ductility of soil-cement and plastic-concrete relative to changes in permeability (hydraulic iii conductivity) with strain. Tests were performed on a number of soil-cement specimens having varying cement and bentonite contents. The test results show that this method is effective in illustrating and quantifying the differences in behavior of the soil-cement specimens and effectively measuring low-permeability materials (10 -6 to 10 -8 cm/s). This laboratory testing procedure can be instrumental for defining and quantifying the in-situ properties of soil-cement mixtures and plastic-concrete used for cut-off wall backfill materials.

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Section: Chapter II Literature Reviewedmentioning

confidence: 99%

A new approach for evaluating the ductility, volumetric stiffness and permeability of cut-off wall backfill materials

Ostrowsky

2017

DFI Journal - The Journal of the Deep Foundations Institute

View full text Add to dashboard Cite

show abstract

Test on Mechanical Properties of Cemented Soils Using Secondary Development Data Acquisition Test System

Cited by 1 publication

References 9 publications

A new approach for evaluating the ductility, volumetric stiffness and permeability of cut-off wall backfill materials

A new approach for evaluating the ductility, volumetric stiffness and permeability of cut-off wall backfill materials

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