Performance of Fly Ash - Lime Stabilized Lateritic Soil Blocks Subjected to Alternate Cycles of Wetting and Drying

James, Jijo; Saraswathy, Rajasekaran

doi:10.2478/cee-2020-0004

Cited by 21 publications

(19 citation statements)

References 17 publications

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“…This additional moisture content supplied during the first cycle of wetting and drying may have also resulted in further formation of cementitious products leading to a gain in strength after the first cycle. A similar response has been reported in literature by earlier investigators [26], [28], [32]. Thus, the resultant effect of increased moisture content and further formation of cementitious products may be a reason for the ductile behaviour of the stabilized specimens after the first cycle of wetting and drying in the present study.…”

Section: Ucs (Kpa)supporting

confidence: 91%

“…The increase in strength can be attributed to the increase in time of chemical reactions with wetting and drying cycles as well as the increase in cementitious compounds during wetting and drying cycles [26]. Similar increase in the strength with the increase in number of cycles have been reported by several other researchers as well [21], [27], [28]. In the case of 2.5% OPC stabilized soil, the strength of the specimens increases from 385 kPa to 451 kPa when the number of cycles increases from 0 to 3.…”

Section: Ucs (Kpa)supporting

confidence: 70%

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Potential of Portland pozzolana cement in the stabilization of an expansive soil subjected to alternate cycles of wetting and drying

James¹,

Natesan²,

Manohar³

et al. 2021

Građ materijali i konstrukcije

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Cement/lime stabilization of soils is one of the common techniques adopted for improving its geotechnical properties. Lately, the focus of investigation has shifted to blended stabilization with industrial wastes as auxiliary additives. However, the role of blended cement in stabilization of soil has been studied insufficiently despite the fact that it is manufactured under controlled conditions. This investigation deals with the use of Portland pozzolana cement (PPC) instead of ordinary Portland cement (OPC) in the stabilization of an expansive soil subjected to alternate cycles of wetting and drying. Unconfined compression strength (UCS) test specimens of dimensions 38mm x 76mm were cast and cured for periods of 7, 14 and 21 days. Then, the specimens were subjected to 1, 2 and 3 cycles of wetting and drying and the UCS of the specimens were determined. Based on the results of the investigation, it was found that OPC performed significantly better than PPC under normal conditions. However, under conditions of wetting and drying, PPC stabilized soil performed much better than OPC stabilized soil when sufficient binder content was available.

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Section: Ucs (Kpa)supporting

confidence: 91%

Section: Ucs (Kpa)supporting

confidence: 70%

Potential of Portland pozzolana cement in the stabilization of an expansive soil subjected to alternate cycles of wetting and drying

James¹,

Natesan²,

Manohar³

et al. 2021

Građ materijali i konstrukcije

Self Cite

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show abstract

“…This constituted one cycle of wetting and drying. Different researchers have adopted different number of cycles in their investigations varying from three going up to twelve cycles ( [26], [21], [1], [30], [23], [20]). The samples were subjected to one, three and five cycles of wetting and drying to determine the resistance of the sample to the loss in strength due to the extreme conditions.…”

Section: Simulation Of Wetting and Dryingmentioning

confidence: 99%

Valorisation of egg shell ash as a potential replacement for lime in stabilization of expansive soils

James¹,

Jothi²,

Karthika³

et al. 2020

Građ materijali i konstrukcije

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The investigation focussed on the possibility of replacing lime in soil stabilization using Egg Shell Ash (ESA), a waste derived from poultry industry. An expansive soil was characterized for its properties in the lab. The minimum lime content required for modification of soil properties was determined from the Eades and Grim pH test. This lime content came out to be 3%. The lime content was replaced using ESA in the proportions of 33%, 50%, 67% and 100%. Unconfined compression test specimens of dimension 38 mm x 76 mm were cast for different combinations and were cured for periods of 3, 7 and 28 days. Samples were also subjected to 1, 3 and 5 cycles of wetting and drying to understand its durability. After the designated curing periods and cycles of wetting and drying, they were strained axially till failure. Atterberg limits tests were done to determine the plasticity of the stabilized soil. The strength results indicated that ESA cannot be used under normal conditions as a replacement for lime, however, ESA replacement resulted in good durability of the specimens under conditions of wetting and drying. It was concluded that ESA replacement of lime can be adopted in conditions of wetting and drying.

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“…This is because the presence of C 2 S in cement, which gives late resistance to cement and works to bind molecules with curing. Besides, the water absorption was reported to decrease with increases in lime content [29].…”

Section: Absorption Testmentioning

confidence: 99%

Characteristics of Hollow Compressed Earth Block Stabilized Using Cement, Lime, and Sodium Silicate

Edris

Matalkah

Rbabah

et al. 2021

Civil and Environmental Engineering

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This research aims to produce a Compressed Earth Block (CEB) product using locally available soil collected from northern Jordan. The CEB mixture was further stabilized using Portland cement, lime, and sodium silicate. The research significance is based upon the urgent need of most developing countries (e.g. Jordan, Egypt…etc) to build more durable and low-cost houses by using locally available materials. As a result, CEB was identified as a cheap and environmentally friendly construction material. CEB specimens were thoroughly characterized by studying the mechanical properties and durability characteristics. Blocks of 30 x 15 x 8 cm with two holes of 7.5 cm in diameter have a potential for higher enduring, higher compressive strength, better thermal insulation, and lower production cost. Blocks were manufactured with an addition of 8 % for either Portland cement or lime, as well as 2 % of sodium silicate to the soil. The results showed that the addition of 8 % of cement to the CEB achieves satisfactory results in both mechanical and durability properties. Also, the addition of sodium silicate was found to enhance the early-age compressive strength however it affected negatively the durable properties of blocks by increasing the erosion rate and deterioration when exposed to water.

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Performance of Fly Ash - Lime Stabilized Lateritic Soil Blocks Subjected to Alternate Cycles of Wetting and Drying

Cited by 21 publications

References 17 publications

Potential of Portland pozzolana cement in the stabilization of an expansive soil subjected to alternate cycles of wetting and drying

Potential of Portland pozzolana cement in the stabilization of an expansive soil subjected to alternate cycles of wetting and drying

Valorisation of egg shell ash as a potential replacement for lime in stabilization of expansive soils

Characteristics of Hollow Compressed Earth Block Stabilized Using Cement, Lime, and Sodium Silicate

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