Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Strength and Compressibility of Kaolinite Clay Stabilized with Lime Sludge and Fly Ash
https://orcid.org/http://orcid.org/0000-0001-7965-8478
The present study investigates the strength and consolidation behavior of kaolinite clay stabilized with industrial byproducts. The use of industrial by-products in soil stabilization is gaining more importance lately, in promoting a sustainable environment. The byproducts used in this study are lime sludge (LS) from a water treatment plant, and fly ash (FA) from a coal-fired thermal power plant. First, the kaolinite clay was stabilized using LS alone in varying percentages (i.e. 0, 2, 4, 6 and 8), and then LS & FA together were used in varying percentages (i.e. 0, 5, 10, 15 and 20) with dry weight of the soil. Standard Proctor tests were carried out on the kaolinite mixes, to find out the density and optimum moisture content (OMC). The unconfined compressive strength (UCS) samples were prepared, based on the standard Proctor density and its corresponding OMC. The UCS samples were tested after a curing period of 0, 7, and 14 days, at room temperature. The strength increase in the kaolinite mixes with LS, LS and FA were evaluated based on UCS. The reason for the strength increase was due to the chemical reaction between kaolinite, LS, and FA. Consolidation tests were conducted for all the similar mixes, which were used for the UCS test, compacted at its Proctor’s density and corresponding OMC. The samples were loaded and unloaded in a specified sequence, and the compression index (Cc) was calculated for all mixes. For kaolinite clay mixed with LS, the Cc values had a decreasing trend except for 2%, as it might not be an optimum mix. Further, kaolinite clay mixed with LS and FA also had a decrease in Cc values, except for 10% and 15%, which had a minor increase. Also, the kaolinite mixes which had the higher UCS strength values exhibited a lower Cc value.
Strength and Compressibility of Kaolinite Clay Stabilized with Lime Sludge and Fly Ash
https://orcid.org/http://orcid.org/0000-0001-7965-8478
The present study investigates the strength and consolidation behavior of kaolinite clay stabilized with industrial byproducts. The use of industrial by-products in soil stabilization is gaining more importance lately, in promoting a sustainable environment. The byproducts used in this study are lime sludge (LS) from a water treatment plant, and fly ash (FA) from a coal-fired thermal power plant. First, the kaolinite clay was stabilized using LS alone in varying percentages (i.e. 0, 2, 4, 6 and 8), and then LS & FA together were used in varying percentages (i.e. 0, 5, 10, 15 and 20) with dry weight of the soil. Standard Proctor tests were carried out on the kaolinite mixes, to find out the density and optimum moisture content (OMC). The unconfined compressive strength (UCS) samples were prepared, based on the standard Proctor density and its corresponding OMC. The UCS samples were tested after a curing period of 0, 7, and 14 days, at room temperature. The strength increase in the kaolinite mixes with LS, LS and FA were evaluated based on UCS. The reason for the strength increase was due to the chemical reaction between kaolinite, LS, and FA. Consolidation tests were conducted for all the similar mixes, which were used for the UCS test, compacted at its Proctor’s density and corresponding OMC. The samples were loaded and unloaded in a specified sequence, and the compression index (Cc) was calculated for all mixes. For kaolinite clay mixed with LS, the Cc values had a decreasing trend except for 2%, as it might not be an optimum mix. Further, kaolinite clay mixed with LS and FA also had a decrease in Cc values, except for 10% and 15%, which had a minor increase. Also, the kaolinite mixes which had the higher UCS strength values exhibited a lower Cc value.
Strength and Compressibility of Kaolinite Clay Stabilized with Lime Sludge and Fly Ash
https://orcid.org/http://orcid.org/0000-0001-7965-8478
The present study investigates the strength and consolidation behavior of kaolinite clay stabilized with industrial byproducts. The use of industrial by-products in soil stabilization is gaining more importance lately, in promoting a sustainable environment. The byproducts used in this study are lime sludge (LS) from a water treatment plant, and fly ash (FA) from a coal-fired thermal power plant. First, the kaolinite clay was stabilized using LS alone in varying percentages (i.e. 0, 2, 4, 6 and 8), and then LS & FA together were used in varying percentages (i.e. 0, 5, 10, 15 and 20) with dry weight of the soil. Standard Proctor tests were carried out on the kaolinite mixes, to find out the density and optimum moisture content (OMC). The unconfined compressive strength (UCS) samples were prepared, based on the standard Proctor density and its corresponding OMC. The UCS samples were tested after a curing period of 0, 7, and 14 days, at room temperature. The strength increase in the kaolinite mixes with LS, LS and FA were evaluated based on UCS. The reason for the strength increase was due to the chemical reaction between kaolinite, LS, and FA. Consolidation tests were conducted for all the similar mixes, which were used for the UCS test, compacted at its Proctor’s density and corresponding OMC. The samples were loaded and unloaded in a specified sequence, and the compression index (Cc) was calculated for all mixes. For kaolinite clay mixed with LS, the Cc values had a decreasing trend except for 2%, as it might not be an optimum mix. Further, kaolinite clay mixed with LS and FA also had a decrease in Cc values, except for 10% and 15%, which had a minor increase. Also, the kaolinite mixes which had the higher UCS strength values exhibited a lower Cc value.
Strength and Compressibility of Kaolinite Clay Stabilized with Lime Sludge and Fly Ash
Lecture Notes in Civil Engineering
Satyanarayana Reddy, C. N. V. (Herausgeber:in) / Saride, Sireesh (Herausgeber:in) / Krishna, A. Murali (Herausgeber:in) / Burra, S. G. (Autor:in) / Kolay, P. K. (Autor:in) / Puri, V. K. (Autor:in) / Kumar, S. (Autor:in)
28.07.2021
11 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Compressibility behaviour of lime-stabilized clay
| British Library Online Contents | 2005
Durability Characteristics of Lime-Stabilized Kaolinite
| British Library Conference Proceedings | 1995