Strength Characterization of Expansive Soil Treated with Phosphogypsum and Crumb Waste Rubber

Babu, R. Dayakar; Raviteja, K. V. N. S.; Varaprasad, L. N. V. N.

doi:10.1061/9780784482117.032

Cited by 4 publications

(3 citation statements)

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“…It was stated that the strength improvement occurred because of the pozzolanic reaction, binder development and discrete reinforcing effect, with an optimum quantity of 6% PG and 2% CRW (71). Based on the above conclusions and experimental results, research has been carried out on using PG in civil engineering materials.…”

Section: For Geotechnical Purposesmentioning

confidence: 99%

“…However, the formation of ettringite due to the presence of cement leads to the development of microcracks and pores, which accelerates the uncontrolled leaching (70). Babu et al (2019) studied the effectiveness of PG and crumb waste rubber (CRW) to stabilise BC soil for use as subgrade material. The improvement of the compressive strength of the soil by using PG is shown in Figure 2.…”

Section: For Geotechnical Purposesmentioning

confidence: 99%

“…As this reaction is a slow process, a longer curing period helps to generate more strength. The integrated particles are formed due to sorption, cementation and cation exchange between the PG and other additive materials (71,89,90). The consumption of hydroxyl (OH -) ions produces ettringite, due to which the overall pH of the composite decreased with the increase of PG content.…”

Section: For Geotechnical Purposesmentioning

confidence: 99%

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Utilisation of phosphogypsum along with other additives in geo- engineering- A review

Anamika

Giri

2022

materconstrucc

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Various adverse effects and hydro-mechanical failures of soil are the dominant effects of global warming. At the same time, rapid industrial development has produced several by-products on a large scale. The reuse of industrial residues in different engineering fields without compromising the technical characteristics is propitious from the engineering, environmental, ecological and economic points of view. Phosphogypsum (PG) can be used as an alternative civil engineering material as it is rich in calcium sulphate, although it contains some radioactive molecules. Researchers are continuing to investigate the utilisation of PG by mixing it with other traditional materials to convert into alternative materials when the radioactive minerals are within the permissible limits. However, the contamination effect can be reduced by treating with citric acid. This review paper presents details of the increase in strength parameters and permeability of PG when combined with other wastes materials used in different geotechnical fields.

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Section: For Geotechnical Purposesmentioning

confidence: 99%

Section: For Geotechnical Purposesmentioning

confidence: 99%

Section: For Geotechnical Purposesmentioning

confidence: 99%

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