The Treatment of Collapsible Loess Soils Using Cement Materials

Jefferson, Ian; Evstatiev, Dimcho; Karastanev, Doncho

doi:10.1061/40971(310)82

Cited by 27 publications

(9 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several stabilization agents, such as cement, lime, and fly ash, have been used to improve loess performance worldwide (Tystovich et al, 1971;Glassey, 1986;Tehrani, 1988;Zia and Fox, 2000;Jefferson et al, 2008;Sariosseiri and Muhunthan, 2009;Metelková et al, 2012). Much of this improvement has been observed in laboratory studies on the geotechnical, textural, and mineral properties of treated loess, tested by mixing various stabilizing agents (Glassey, 1986;Tehrani, 1988;Zia and Fox, 2000;Jefferson et al, 2008;Sariosseiri and Muhunthan, 2009;Metelková et al, 2012), but less attention has been given to experimental and field studies involving lime pile treatment (Tystovich et al, 1971;Wu et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…Much of this improvement has been observed in laboratory studies on the geotechnical, textural, and mineral properties of treated loess, tested by mixing various stabilizing agents (Glassey, 1986;Tehrani, 1988;Zia and Fox, 2000;Jefferson et al, 2008;Sariosseiri and Muhunthan, 2009;Metelková et al, 2012), but less attention has been given to experimental and field studies involving lime pile treatment (Tystovich et al, 1971;Wu et al, 2014). Traditional treatment method of mixing a stabilization agent with soil may be appropriate at undeveloped sites.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Physicochemical and index properties of loess stabilized with lime and fly ash piles

Pei

Zhang

et al. 2015

Applied Clay Science

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Physicochemical and index properties of loess stabilized with lime and fly ash piles

Pei

Zhang

et al. 2015

Applied Clay Science

View full text Add to dashboard Cite

“…A relationship between depth of wetting zone and time was established, and a mathematical formula for predicting the optimum depth of wetting zone was proposed. Jefferson et al (2008) presented a case history illustrating how, with proper pre-treatment assessment and careful selection, a cement-based treatment was used successfully to improve a collapsible loess soil. The case history illustrated that, even for structures when there are very tight specifications for posttreatment performance, it is still possible to build safely on a problematical loess soil.…”

Section: Treatment Of Gypseous Soilsmentioning

confidence: 99%

Treatment of collapse of gypseous soils by grouting

Fattah

Al-Ani

Al-Lamy

2013

Proceedings of the Institution of Civil Engineers - Ground Impr

View full text Add to dashboard Cite

Gypseous soil is a collapsible soil, which causes large deformations in buildings that are constructed on it. Various methods have been used to minimise this effect, such as replacing the gypseous soil or using soil stabilisation (grouting or soil improvement). This study was carried out on four types of gypseous soils that have different properties and various gypsum contents. The testing was carried out on remoulded samples to evaluate the compressibility of gypseous soil under different conditions. The samples were grouted with acrylate liquid. The relationships between the injection pressure and the radius of flow, between time of injection and radius of flow, and between time and quantity of acrylate liquid are investigated on four soils. The treated samples showed that the acrylate liquid reduces the compressibility of the gypseous soil by more than 60-70%. This is attributed to the acrylate liquid film coating the gypsum particles and so isolating them from being subjected to the effect of water.The treated gypseous samples exhibited a low collapse potential, where acrylate liquid reduced the collapsibility of the gypseous soil by more than 50-60%. The acrylate liquid affects the shear strength parameters of the gypseous soil by increasing the cohesion and decreasing the angle of internal friction.

show abstract

“…Geohazard loess can be also stabilized or reinforced by chemical stabilization and mixing various additives, such as lime, cement, and fly ash (FA) or any mixture of these additives. Many studies have been conducted by engineers and scientists in science and laboratory tests in China [20], New Zealand [21][22][23][24], USA [25], Thailand [26], Bulgaria [27], and the Czech Republic [28]. However, most previous works have focused on loess stabilization, whereas the cost and the environmental pollution have not been paid attention yet.…”

Section: Introductionmentioning

confidence: 99%

“…However, most previous works have focused on loess stabilization, whereas the cost and the environmental pollution have not been paid attention yet. Lime or cement has been widely used in the stabilization of loess [27][28][29][30] in spite of consuming a large quantity of energy, emitting the greenhouse gas CO 2 , their negative environmental effects during manufacture, and their cost [31,32]. Therefore, the recycling of FA is becoming more important than before with the proposal of strict environmental regulations in North and East China [33].…”

Section: Introductionmentioning

confidence: 99%

Influence of Submergence on Stabilization of Loess in Shaanxi Province by Adding Fly Ash

Phoak

Luo

et al. 2018

Applied Sciences

View full text Add to dashboard Cite

In this study, the influence of fly ash (FA) content (0%, 10%, 20%, and 30%) on the alteration in the physical and mechanical parameters of loess is investigated. The influences of curing time (0, 14, and 28 days) and submergence and non-submergence conditions are analyzed as well. Analysis considers the variation in Atterberg limits (liquid limit, plastic limit, and plasticity index), compaction parameters (optimum moisture content (OMC), and maximum dry density (MDD)), unconfined compressive strength (UCS) stress, UCS strain, California bearing ratio (CBR) value, and swell potential. Results show that the application of FA-stabilized loess (FASL) is effective. Specifically, the MDD decreases and the OMC increases, the UCS stress increases and the UCS strain decreases, the CBR value improves and the swell potential declines, but Atterberg limits are insignificantly changed by the increase in the FA ratio compared with those of untreated loess. The UCS stress and CBR value are improved with the increase in curing time, whereas the UCS strain is negligible. FASL under submergence condition plays an important role in improving the effect of FA on the UCS stress and CBR value compared with that under non-submergence condition. The UCS stress and CBR value are more increased and more decreased than the UCS strain in submerged samples. Therefore, the application of FASL in flood areas is important for obtaining sustainable construction materials and ensuring environmental protection.

show abstract

The Treatment of Collapsible Loess Soils Using Cement Materials

Cited by 27 publications

References 6 publications

Physicochemical and index properties of loess stabilized with lime and fly ash piles

Physicochemical and index properties of loess stabilized with lime and fly ash piles

Treatment of collapse of gypseous soils by grouting

Influence of Submergence on Stabilization of Loess in Shaanxi Province by Adding Fly Ash

Contact Info

Product

Resources

About