Effect of Freeze/Thaw Cycles on the Performance and Microstructure of Cement-Treated Soils

Jamshidi, Reza; Lake, Craig B.; Gunning, Peter; Hills, Colin D.

doi:10.1061/(asce)mt.1943-5533.0001677

Cited by 43 publications

(15 citation statements)

References 16 publications

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“…This property, as well as strength, is one of the important engineering properties of cemented mixes. Thus studies have been carried out to evaluate the durability of soil-cement mixtures, D r a f t 4 most of them (e.g., Starcher et al 2016;Jamshidi et al 2016) centered on two ASTM standards: wetting and drying (ASTM 2015) and freezing and thawing (ASTM 2013a). Shihata and Baghdadi (2001) immersed sets of silty sand-cement specimens in saline water for different durations prior to running 12 wetting-drying cycles followed by brushing strokes.…”

Section: Introductionmentioning

confidence: 99%

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Durability, strength, and stiffness of compacted gold tailings – cement mixes

et al. 2018

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Compaction and Portland cement addition are amongst promising ground improvement procedures for enhancing the mechanical properties of gold tailings. The present investigation intends to compute the impact of Portland cement content and dry density on the properties (durability, stiffness, and strength) of compacted gold tailings – cement mixes. Its main significant addition to knowledge is the quantification of accumulated loss of mass (ALM) after wetting–drying cycles, shear modulus at small strains, and unconfined compressive strength (qu) as a function of the porosity/cement index. In addition, the existence of an exclusive relation connecting ALM divided by the number of wetting–drying cycles and porosity/cement index is revealed empirically. This broadens the applicability of such an index by demonstrating that it controls not only mechanical but also endurance performance of compacted gold tailings – Portland cement mixes.

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Section: Introductionmentioning

confidence: 99%

“…It was observed that for high RAP and low NaOH contents (for the same fly ash amounts) the weight loss is high. Jamshidi et al (2016) investigated the performance and structural changes in cementtreated soils under influence of freeze/thaw exposure.…”

Section: Introductionmentioning

confidence: 99%

Durability, strength, and stiffness of compacted gold tailings – cement mixes

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Previous studies have been carried out to evaluate the durability of soil-cement mixtures, most of them (e.g., Starcher et al, 2016, Jamshidi et al, 2016) centered on two ASTM standards: wetting and drying (ASTM, 2015a) and freezing and thawing (ASTM, 2013). Shihata & Baghdadi (2001) immersed sets of silty sand-cement specimens in saline water for different durations prior to running 12 wetting-drying cycles followed by brushing strokes.…”

Section: Introductionmentioning

confidence: 99%

On the Durability and Strength of Compacted Coal Fly Ash-Carbide Lime Blends

Consoli¹,

Saldanha²,

Novaes³

et al. 2017

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Present investigation intends to examine the mechanical behaviour of compacted coal fly ash -carbide lime mixes to assess their potential use as a sub-base/base material for low volume roads. This study plans to compute the impact of carbide lime content and dry density on the properties (durability and strength) of compacted coal fly ashcarbide lime blends. Its main significant addition to knowledge is quantifying the accumulated loss of mass (ALM) after wetting/drying cycles, tensile (q t ) and compressive strength (q u ) as a function of the porosity/lime index. A specific q t /q u matching 0.13 was established, being autonomous of the porosity/lime index. In addition, it is empirically revealed the existence of an exclusive relation connecting accumulated loss of mass divided by the number of wetting/drying cycles and porosity/lime index. This broadens the applicability of such index by demonstrating it controls endurance performance of compacted coal fly ash -lime blends.

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“…The stabilization of soil with Portland cement has been successfully used for improving geotechnical performance in applications such as deep excavation, pavement base layers, slop protection and underground construction works, and so on [1][2][3], which presents great economic and environmental benefits. Stabilization in this way improves the strength and durability of soil, reduces noise and dust in the work environment, also, improves soil workability.…”

Section: Introductionmentioning

confidence: 99%

Energy absorption characteristics of cement-soil under confining pressure based on SHPB test

Gao¹,

Ma²

2017

J. vibroeng.

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Cement-soil has been widely used for engineering application. However, no attention has been paid to the energy absorption characteristics of cement-soil under impact loading. In this paper, a series of split Hopkinson pressure bar (SHPB) tests have been conducted to explore the energy absorption characteristics of cement-soil, and the effects of confining pressure (from 0 to 2.0 MPa) and strain rate (from 130 to 172 s-1) on the absorbed energy and the energy absorbency rate are investigated. The results show that the energy evolution of cement-soil under confining pressure is found to be similar at different strain rate. Both the absorbed energy and the energy absorbency rate are influenced by the confining pressure. Moreover, both the absorbed energy and the energy absorbency rate increase at first and then remain stable at a certain value with the increase of confining pressure. In addition, the absorbed energy linearly increases with the incident energy increasing, and a similar tendency is found between the absorbed energy and the strain rate, yet no obvious effect on the energy absorbency rate by the strain rate. Moreover, the energy mechanism of cement-soil is explained from the perspective of failure modes of cement-soil specimen.

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Effect of Freeze/Thaw Cycles on the Performance and Microstructure of Cement-Treated Soils

Cited by 43 publications

References 16 publications

Durability, strength, and stiffness of compacted gold tailings – cement mixes

Durability, strength, and stiffness of compacted gold tailings – cement mixes

On the Durability and Strength of Compacted Coal Fly Ash-Carbide Lime Blends

Energy absorption characteristics of cement-soil under confining pressure based on SHPB test

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