Selection of Optimized Binders for Dechlorination of Trichloroethylene-Contaminated Sites by Jet Grouting and Deep Soil Mixing

Freitag, Peter; Mäurer, H.; Reichenauer, Thomas G.

doi:10.1061/(asce)ee.1943-7870.0001926

Cited by 3 publications

(1 citation statement)

References 52 publications

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“…Selecting binders for soil stabilization is a widely recognized problem in civil engineering where one tries to find a proper type and percentage of stabilizing agents to improve soil properties [1][2][3]. For instance, using binders to improve the properties of soil is necessary for road construction.…”

Section: Introductionmentioning

confidence: 99%

Geotechnical Properties of Soil Stabilized with Blended Binders for Sustainable Road Base Applications

Lindh

Lemenkova

2023

Construction Materials

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This study aimed at evaluating the effect of blended binders on the stabilization of clayey soils intended for use as road and pavement materials in selected regions of Sweden. The stabilization potential of blended binders containing five stabilizers (cement, bio fly ash, energy fly ash, slag and lime) was investigated using laboratory tests and statistical analysis. Soil samples were compacted using Swedish Standards on UCS. The specimens were stabilized with blended mixtures containing various ratios of five binders. The effects of changed ratio of binders on soil strength was analyzed using velocities of seismic P-waves penetrating the tested soil samples on the day 14 of the experiment. The difference in the soil surface response indicated variations in strength in the evaluated specimens. We tested combination of blended binders to improve the stabilization of clayey soil. The mix of slag/lime or slag/cement accelerated soil hardening process and gave durable soil product. We noted that pure lime (burnt or quenched) is best suited for the fine-grained soils containing clay minerals. Slag used in this study had a very finely ground structure and had hydraulic properties (hardens under water) without activation. Therefore, slag has a too slow curing process for it to be practical to use in real projects on stabilization of roads. The best performance on soil stabilization was demonstrated by blended binders consisted of lime / fly ash / cement which considerably improved the geotechnical properties and workability of soil and increased its strength. We conclude that bearing capacities of soil intended for road construction can be significantly improved by stabilization using mixed binders, compared to pure binders (cement).

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Section: Introductionmentioning

confidence: 99%

Geotechnical Properties of Soil Stabilized with Blended Binders for Sustainable Road Base Applications

Lindh

Lemenkova

2023

Construction Materials

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Stabilisation of estuarine sediments with an alkali-activated cement for deep soil mixing applications

Pinheiro,

Rios,

Viana da Fonseca

et al. 2024

Journal of Rock Mechanics and Geotechnical Engineering

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In situ chemical remediation using the jet grouting technique: a field test

Freitag¹,

Reichenauer

2024

Environmental Geotechnics

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Jet grouting is a technique to deliver oxidizing or reducing reagents directly into source zones in heavily contaminated industrial sites. The advantage is a forced mixing of contaminant and reagent, eliminating various risks posed by an inhomogeneous, layered subsoil. The feasibility of this approach was demonstrated at a former chemical laundry in Zwölfaxing, near Vienna, Austria. After two extensive investigations, two remediation campaigns were conducted with extensive monitoring and sampling in between to study the effects of locally set measures on the overall site. Samples taken from core drillings and liner samples as well as membrane interface probes (MIP) were examined and compared to data obtained from concentration measurements at observation wells. This contribution demonstrates the effectiveness of jet grouting and presents a novel approach using MIP sounding for assessing remediation success. This sounding technique enables investigating a zone of highly contaminated subsoil before and after the treatment, with measurements directly showing the dechlorination success.

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Selection of Optimized Binders for Dechlorination of Trichloroethylene-Contaminated Sites by Jet Grouting and Deep Soil Mixing

Cited by 3 publications

References 52 publications

Geotechnical Properties of Soil Stabilized with Blended Binders for Sustainable Road Base Applications

Geotechnical Properties of Soil Stabilized with Blended Binders for Sustainable Road Base Applications

Stabilisation of estuarine sediments with an alkali-activated cement for deep soil mixing applications

In situ chemical remediation using the jet grouting technique: a field test

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