A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Effect of saponification-based treatment of palm kernel shell aggregates on the mechanical properties of palm kernel shell aggregates concrete
Highlights The induced saponification removed oil on the surface of PKS aggregates. Oil on PKS aggregates does not allow the development of strength. High alkalinity destroys the integrity of PKS aggregates. High alkalinity affect adversely mechanical strengths of PKS concrete.
Abstract This paper presents a method of treatment of Palm Kernel Shell (PKS) aggregates to remove the oil that inhibits the development of strength in PKS concrete. 13 treatments from 2 to 20 g/L concentration of solutions of potassium hydroxide were used to induce a saponification reaction with the oil present on the PKS surface. The oil is entirely removable, but the highly concentrated solution damages the aggregates’ surface. The optimum concentration to remove the oil was 10 g/L for an optimum exposure time of 12 h without affecting the PKS aggregates’ integrity and the PKS concrete’s mechanical properties. Compressive strength and a splitting tensile strength at 28 days of 20 MPa and 1.2 MPa were achieved without admixture.
Effect of saponification-based treatment of palm kernel shell aggregates on the mechanical properties of palm kernel shell aggregates concrete
Highlights The induced saponification removed oil on the surface of PKS aggregates. Oil on PKS aggregates does not allow the development of strength. High alkalinity destroys the integrity of PKS aggregates. High alkalinity affect adversely mechanical strengths of PKS concrete.
Abstract This paper presents a method of treatment of Palm Kernel Shell (PKS) aggregates to remove the oil that inhibits the development of strength in PKS concrete. 13 treatments from 2 to 20 g/L concentration of solutions of potassium hydroxide were used to induce a saponification reaction with the oil present on the PKS surface. The oil is entirely removable, but the highly concentrated solution damages the aggregates’ surface. The optimum concentration to remove the oil was 10 g/L for an optimum exposure time of 12 h without affecting the PKS aggregates’ integrity and the PKS concrete’s mechanical properties. Compressive strength and a splitting tensile strength at 28 days of 20 MPa and 1.2 MPa were achieved without admixture.
Effect of saponification-based treatment of palm kernel shell aggregates on the mechanical properties of palm kernel shell aggregates concrete
Katte, Ahouefa Reine (author) / Mwero, John (author) / Gibigaye, Mohamed (author) / Koteng, David Otieno (author)
2022-10-02
Article (Journal)
Electronic Resource
English
Potential for using palm kernel shell as aggregates in portland cement concrete
| British Library Conference Proceedings | 2000
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