Properties of Lime-Cement Concrete Containing Various Amounts of Waste Tire Powder under Different Ground Moisture Conditions.

Mohammadifar, L; Miraki, H; Rahmani, A; Jahandari, S; Mehdizadeh, B; Rasekh, H; Samadi, P; Samali, B

Properties of Lime-Cement Concrete Containing Various Amounts of Waste Tire Powder under Different Ground Moisture Conditions.

Mohammadifar, L Miraki, H Rahmani, A Jahandari, S Mehdizadeh, B Rasekh, H

Samadi, P Samali, B

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Publisher:: MDPI
Publication Type:: Journal Article
Citation:: Polymers (Basel), 2022, 14, (3), pp. 482
Issue Date:: 2022-01-25

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Field	Value	Language
dc.contributor.author	Mohammadifar, L
dc.contributor.author	Miraki, H
dc.contributor.author	Rahmani, A
dc.contributor.author	Jahandari, S
dc.contributor.author	Mehdizadeh, B
dc.contributor.author	Rasekh, H https://orcid.org/0000-0003-2064-0753
dc.contributor.author	Samadi, P
dc.contributor.author	Samali, B
dc.date.accessioned	2023-04-06T03:53:22Z
dc.date.available	2022-01-20
dc.date.available	2023-04-06T03:53:22Z
dc.date.issued	2022-01-25
dc.identifier.citation	Polymers (Basel), 2022, 14, (3), pp. 482
dc.identifier.issn	2073-4360
dc.identifier.issn	2073-4360
dc.identifier.uri	http://hdl.handle.net/10453/169315
dc.description.abstract	Lime-cement concrete (LCC) is a non-structural concrete in which lime and cement are used as the main binders. However, although LCC has many applications in reducing the settlement of foundations and providing a support layer for shallow foundations, little research has been conducted to evaluate its behaviour in various moisture conditions. Previous researchers have studied the feasibility of using waste tires in conventional concrete to alleviate their negative environmental impacts. However, in field projects, rubber has not been widely used because its application leads to the strength reduction of concrete. In the case of LCC, attaining high strengths is not required and thus application of waste tire particles sounds reasonable. This research evaluated the impact of various rubber powder contents on the fresh, geotechnical and durability properties of LCC at different saturation degrees induced by the capillary action and groundwater level increment, which has not been studied before. The results of more than 320 tests showed that the application of tire powder increases workability and decreases the water absorption of LCC. Moreover, all 60-day cured specimens exposed to 100% saturation degree experienced a strength reduction of less than 10% by using rubber powder contents varying from 0 to 20%. Moreover, increasing the saturation degree from 0 to 100% decreased the average compressive strength by 13.5 and 22% for 60-day cured samples of two different mix designs. The results of this research confirm that LCC containing up to 10% rubber powder could be promisingly used underneath or close to the groundwater table without its strength and geotechnical properties being jeopardized due to rubber employment and/or exposure to ground moisture.
dc.format	Electronic
dc.language	eng
dc.publisher	MDPI
dc.relation.ispartof	Polymers (Basel)
dc.relation.isbasedon	10.3390/polym14030482
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	03 Chemical Sciences, 09 Engineering
dc.title	Properties of Lime-Cement Concrete Containing Various Amounts of Waste Tire Powder under Different Ground Moisture Conditions.
dc.type	Journal Article
utslib.citation.volume	14
utslib.location.activity	Switzerland
utslib.for	03 Chemical Sciences
utslib.for	09 Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	open_access	*
dc.date.updated	2023-04-06T03:53:18Z
pubs.issue	3
pubs.publication-status	Published online
pubs.volume	14
utslib.citation.issue	3

Abstract:

Lime-cement concrete (LCC) is a non-structural concrete in which lime and cement are used as the main binders. However, although LCC has many applications in reducing the settlement of foundations and providing a support layer for shallow foundations, little research has been conducted to evaluate its behaviour in various moisture conditions. Previous researchers have studied the feasibility of using waste tires in conventional concrete to alleviate their negative environmental impacts. However, in field projects, rubber has not been widely used because its application leads to the strength reduction of concrete. In the case of LCC, attaining high strengths is not required and thus application of waste tire particles sounds reasonable. This research evaluated the impact of various rubber powder contents on the fresh, geotechnical and durability properties of LCC at different saturation degrees induced by the capillary action and groundwater level increment, which has not been studied before. The results of more than 320 tests showed that the application of tire powder increases workability and decreases the water absorption of LCC. Moreover, all 60-day cured specimens exposed to 100% saturation degree experienced a strength reduction of less than 10% by using rubber powder contents varying from 0 to 20%. Moreover, increasing the saturation degree from 0 to 100% decreased the average compressive strength by 13.5 and 22% for 60-day cured samples of two different mix designs. The results of this research confirm that LCC containing up to 10% rubber powder could be promisingly used underneath or close to the groundwater table without its strength and geotechnical properties being jeopardized due to rubber employment and/or exposure to ground moisture.

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http://hdl.handle.net/10453/169315