Use of Sewage Sludge Ash and Hydrated Lime to Improve the Engineering Properties of Clayey Soils

Norouzian, Kamyar; Abbasi, Nader; Abedi‐Koupai, Jahangir

doi:10.1007/s10706-017-0411-9

Cited by 16 publications

(9 citation statements)

References 11 publications

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“…In some samples, the ISSA/cement additive improved the CBR values by up to 30 times. Sewage sludge ash (SSA) is also a kind of synthetic pozzolanic materials which could be used successfully used for stabilization of soils [14]. In this research the effects of a natural pozzolan and lime were investigated for stabilization of a silty sand soil.…”

mentioning

confidence: 99%

Improvement of geotechnical properties of silty sand soils using natural pozzolan and lime

Abbasi

Mahdieh

2018

Geo-Engineering

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confidence: 99%

Improvement of geotechnical properties of silty sand soils using natural pozzolan and lime

Abbasi

Mahdieh

2018

Geo-Engineering

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“…They found that the maximum compressive strength occurs with a certain combination of hydrated lime and SSA rather than their higher values. In this research the combination of 5% hydrated lime and 10% sewage sludge ash were determined as the most efficient combination [22]. Hamidi and Marandi (2018) showed that using epoxy resin increases strength parameters about 100 to 1000 times while UCS reaches to more than 50 MPa in some samples based on the clay mineral types in the soils [1].…”

Section: Introductionmentioning

confidence: 86%

“…Harvard apparatus has Figure 4 shows the Harvard apparatus used in this research which made by a local manufacture according standard specification. For this purpose, certain amount of additives were mixed and compacted in Harvard compaction cylindrical mold (length 71.52 mm with a 33.34 mm diameter) applying optimum water content and to reach maximum dry density according to Norouzian et al (2017) compaction test results [22]. In such a way, for different treatments, first the SSA and hydrated lime were mixed with soil, and then water was added gradually to the mixture up to optimum moisture content and compacted by standard compaction effort.…”

Section: Preparation Of Specimensmentioning

confidence: 99%

“…Test results showed that the 28 day UCS of the stabilized soil with 2% partial substitution of cement with silica fume is almost 3.5 fold greater than that of the untreated [21]. Norouzian et al (2017) showed that by the addition of both SSA and lime to clayey soil, the optimum water content of the treated samples (ω opt) is increased and their maximum dry density (γd max) decreased considerably. So they concluded that the variation of ω opt and γd max are significant for the samples having different amounts of SSA and lime.…”

Section: Introductionmentioning

confidence: 97%

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Evaluation of Softening of Clayey Soil Stabilized with Sewage Sludge Ash and Lime

2018

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Production of sewage sludge have raised increasing concerns due to negative environmental effect. Sewage Sludge Ash (SSA) is used as a new type of additive for clay. Laboratory tests were performed on clay samples to study the mechanism of sewage sludge ash (SSA) and Hydrated Lime (HL) soil stabilization. Different SSA contents (0, 5, 10, 15%) and hydrated lime (0, 1, 3 and 5%) were added to the soil samples. 288 samples were prepared, and unconfined compressive strength tests were carried out. The samples were tested under optimum water content and also saturated conditions with three replications. The results of the coefficient of softening indicated that by adding SSA and hydrated lime to clay soil simultaneously, the stabilized clay soils can be applied in the moist and saturated condition. According to the results, the samples of SSA contents 0% with hydrated lime 5% and SSA contents 10% with hydrated lime 5% can be placed in the vicinity of moisture.

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“…The results have revealed that upon increase of ash of ooze to soil, unit weight of dry volume is decreased and optimized moisture is increased, respectively. Moreover, increase of ooze ash to soil increases the pressure resistance in both conditions of optimized and saturated moisture (Norouzian, Abbasi, & Abedi Koupai, 2015). The effect of ash of rice husk and lime on technical characteristics of clay soils studied.…”

Section: Introductionmentioning

confidence: 99%

Improvement stability of earth canal banks using geo-technical approaches

Hosseini

Sharifi

2019

Geology, Ecology, and Landscapes

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Splash erosion is one of the common erosional features, which is happening in the steep slope of sidewall of earth structures. Accordingly, it is necessary to use erosion control procedures in some sections of the route, especially in the intersection with other structures or in the intervals of channel route in the vicinity of access road or agricultural lands. Application of bio-mulches and well-known natural modifying agents are being used to control erosion. This research aimed to control splash and rill erosion processes along the steep slope of sidewall of earth structures and to find out the best modifying agents and bio-mulches to enhanced stability of soil profile. The research method was formulated to use experimental methods to simulate rainfall in different intensities and durations using rain simulation laboratory of soil protection and watershed management research institute. In addition, modifying agents and biomulches were applied in order to discover optimum compounds to improve stability of soil resistance parameters on the sidewalls of irrigation and drainage channels. Further, geometry of the irrigation and drainage channels (Khuzestan Province, Southwestern of Iran) was use to setup experimental procedures. In total, 290 tests were conducted using 15 types of modifiers and bio mulches. The resultant data have emphasized on effectiveness treatments using bio-mulches and groups of cements such as sulfate, slurry and lime, and soil mixture with a confidence level of 95 percent. For instance, bio-mulches were increased soil resistance upon to 89% rate of erosion along the sidewalls of drainage channels. Sulfate resistant cement slurry treatment has represented the best performance among other soil-modifying agents with a rate of 98%. The present research has introduced applicability methods of the bio-mulch and soilmodifying agents in soil erosion control.

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Use of Sewage Sludge Ash and Hydrated Lime to Improve the Engineering Properties of Clayey Soils

Cited by 16 publications

References 11 publications

Improvement of geotechnical properties of silty sand soils using natural pozzolan and lime

Improvement of geotechnical properties of silty sand soils using natural pozzolan and lime

Evaluation of Softening of Clayey Soil Stabilized with Sewage Sludge Ash and Lime

Improvement stability of earth canal banks using geo-technical approaches

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