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The Behavior of Modified Portland Cement Systems Incorporating Rubber Crumb
https://orcid.org/http://orcid.org/0000-0002-3451-7521
https://orcid.org/http://orcid.org/0000-0003-1810-4206
https://orcid.org/http://orcid.org/0000-0002-5503-422X
https://orcid.org/http://orcid.org/0000-0001-8739-8282
One of the areas of sustainable construction with realization the Zero waste concept is the utilization and reuse of industrial waste, in particular used rubber tires, in concrete. When adding crumb rubber, a decrease in the strength of cement-based materials is observed. In order to increase strength, Portland cement was modified with a complex additive based on polycarboxylate superplasticizer and microsilica, and the influence of rubber crumb on the properties of modified Portland cement systems was studied. The use of the optimal amount of microsilica in the rubberized Portland cement system with a superplasticizer provides an increase in early strength by 33.6%, and strength after 28 days by 8.4% compared to system without crumb rubber. Samples of Portland cement systems containing rubber show elastic behaviour under dynamic loading. They are destroyed slowly after the appearance of cracks and characterized by additional resistance to loads after reaching the breaking stress. Impact resistance of rubberized modified Portland cement systems increases by 2.0–2.7 times compared to system without crumb rubber.
The Behavior of Modified Portland Cement Systems Incorporating Rubber Crumb
https://orcid.org/http://orcid.org/0000-0002-3451-7521
https://orcid.org/http://orcid.org/0000-0003-1810-4206
https://orcid.org/http://orcid.org/0000-0002-5503-422X
https://orcid.org/http://orcid.org/0000-0001-8739-8282
One of the areas of sustainable construction with realization the Zero waste concept is the utilization and reuse of industrial waste, in particular used rubber tires, in concrete. When adding crumb rubber, a decrease in the strength of cement-based materials is observed. In order to increase strength, Portland cement was modified with a complex additive based on polycarboxylate superplasticizer and microsilica, and the influence of rubber crumb on the properties of modified Portland cement systems was studied. The use of the optimal amount of microsilica in the rubberized Portland cement system with a superplasticizer provides an increase in early strength by 33.6%, and strength after 28 days by 8.4% compared to system without crumb rubber. Samples of Portland cement systems containing rubber show elastic behaviour under dynamic loading. They are destroyed slowly after the appearance of cracks and characterized by additional resistance to loads after reaching the breaking stress. Impact resistance of rubberized modified Portland cement systems increases by 2.0–2.7 times compared to system without crumb rubber.
The Behavior of Modified Portland Cement Systems Incorporating Rubber Crumb
https://orcid.org/http://orcid.org/0000-0002-3451-7521
https://orcid.org/http://orcid.org/0000-0003-1810-4206
https://orcid.org/http://orcid.org/0000-0002-5503-422X
https://orcid.org/http://orcid.org/0000-0001-8739-8282
One of the areas of sustainable construction with realization the Zero waste concept is the utilization and reuse of industrial waste, in particular used rubber tires, in concrete. When adding crumb rubber, a decrease in the strength of cement-based materials is observed. In order to increase strength, Portland cement was modified with a complex additive based on polycarboxylate superplasticizer and microsilica, and the influence of rubber crumb on the properties of modified Portland cement systems was studied. The use of the optimal amount of microsilica in the rubberized Portland cement system with a superplasticizer provides an increase in early strength by 33.6%, and strength after 28 days by 8.4% compared to system without crumb rubber. Samples of Portland cement systems containing rubber show elastic behaviour under dynamic loading. They are destroyed slowly after the appearance of cracks and characterized by additional resistance to loads after reaching the breaking stress. Impact resistance of rubberized modified Portland cement systems increases by 2.0–2.7 times compared to system without crumb rubber.
The Behavior of Modified Portland Cement Systems Incorporating Rubber Crumb
Lecture Notes in Civil Engineering
Blikharskyy, Zinoviy (editor) / Zhelykh, Vasyl (editor) / Marushchak, Uliana (author) / Sydor, Nazar (author) / Braichenko, Serhii (author) / Margal, Ihor (author)
International Scientific Conference EcoComfort and Current Issues of Civil Engineering ; 2024 ; Lviv, Ukraine
2024-08-09
8 pages
Article/Chapter (Book)
Electronic Resource
English
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