Stabilization of Expansive Sub-grade Soil Using Hydrated Lime and Dolomitic-Limestone By-Product (DLP)

Ahmed, Amira Hamdy Ali; Hassan, Ahmed M; Lotfi, Hani A.

doi:10.1007/s10706-019-01115-5

Cited by 19 publications

(17 citation statements)

References 13 publications

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“…Conversely, MDD increased as the percentage of limestone dust increased in the composite. This result is compatible with previous results such as Agrawal and Gupta (2011), Memon et al (2015), Ogila (2016) and Ahmed et al (2020). The addition of limestone dust caused the soil to be coarser and result in higher MDD (Ahmed et al, 2020).…”

Section: Compaction Testsupporting

confidence: 93%

“…This result is compatible with previous results such as Agrawal and Gupta (2011), Memon et al (2015), Ogila (2016) and Ahmed et al (2020). The addition of limestone dust caused the soil to be coarser and result in higher MDD (Ahmed et al, 2020). Mixing limestone dust with clay is facilitating the clay compaction at low moisture content and result in densification structure with lower void ration and higher density (Ogila, 2016).…”

Section: Compaction Testsupporting

confidence: 92%

“…Figure 2 demonstrates that for limestone dust contents equal to 10%, 20%, 30% and 40%; LL is decreased by 6%, 10%, 12 and 17%; PL is reduced by 4%, 5%, 6 and 8%; and PI is decreased by 3%, 5%, 6 and 9%; respectively. Similar results were found by various researchers like Ahmed et al (2020), Bshara et al (2014) and Sabat (2012). Brooks et al (2011) stated that as the limestone dust added to the soil, the calcium cation in the dust will take place of soil cations until the soil full of calcium cations.…”

Section: Atterberg Limitssupporting

confidence: 91%

“…hussein.hassan@uod.ac, en.shevan@yahoo.com, sheyan.khaled@dpu.edu.krd Despite that both applied dust have CaCO3, it is anticipated that gravel dust will behave as a replacement material of clay content in the soil. However, with the addition of limestone dust to soil mixture, it will result in chemical reactions between the elements of limestone dust and soil (Ahmed et al, 2020).…”

Section: Dustmentioning

confidence: 99%

“…The soil limestone dust mixture will result in a pozzolanic reaction which in turn create cementitious compounds and fill the soil voids and cause a reduction in PI of soil (Okagbue, 2007;Brooks et al, 2011). According to Ahmed et al (2020), adding limestone powder will improve both workability and consistency of soil. Thompson (1967) stated that as PI decrease, the workability of soil mixture increase.…”

Section: Atterberg Limitsmentioning

confidence: 99%

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Effect of Gravel Dust And Limestone Dust on Geotechnical Properties of Clayey Soil

Hassan¹,

Taher²,

Alyousify³

2020

uod

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Gravel dust and limestone dust are types of solid waste materials that are obtained from the crusher plant. These materials are dumped-off in high amount causing a negative impact on the environment and creating serious hazards on health. As the construction activities are increased in developing countries, the demand of crushed gravel and crushed limestone for roads, airfields, railway ballast, buildings and concrete work are increased. This study attempted to investigate the effect of gravel dust and limestone dust on geotechnical properties of clayey soil. Testing program including Atterberg limits, compaction, CBR and free swell tests, were performed on clay with the dust at varying amounts (10, 20, 30 and 40%). The results showed that the Atterberg limits of clay decrease in proportion to increases in the amount of dust. The increase in gravel dust contents decreased the compaction characteristics of clay. However, the MDD increased and OMC decreased with increase in limestone dust contents. A series of soaked CBR tests were conducted on the clay-dust mixtures of gravel dust and limestone dust. The dust was mixed with the clay of different weight percentages. The results showed a general increase in the CBR value of clay with the addition of dust. The CBR value increased gradually with the gravel dust content. The maximum CBR was obtained at optimum limestone dust content, approximately 20%. Swelling percentages decreased gradually with the dust content. The tests results revealed that it is possible to use gravel dust and limestone dust for improving the properties of clayey soil.

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Section: Compaction Testsupporting

confidence: 93%