Experimental study on the influence of mixing time on concrete performance under different mixing modes

To study the influence of different mixing times on the performance of concrete under vibration mixing and conventional mixing, C40 and C60 are selected in this paper to verify the influence of mixing time of 60, 75, 90, 105, and 120 s on the compressive strength and durability of concrete comparing...

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Autores principales:	Zhao Wu, Yang Jing, Zhao Wenjun, Yang Chi
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	concrete vibration mixing mixing time compressive strength durability Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/e0dd7a20197d44448548a9ea6ffc0cd5
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spelling	oai:doaj.org-article:e0dd7a20197d44448548a9ea6ffc0cd52021-12-05T14:11:04ZExperimental study on the influence of mixing time on concrete performance under different mixing modes2191-035910.1515/secm-2021-0061https://doaj.org/article/e0dd7a20197d44448548a9ea6ffc0cd52021-11-01T00:00:00Zhttps://doi.org/10.1515/secm-2021-0061https://doaj.org/toc/2191-0359To study the influence of different mixing times on the performance of concrete under vibration mixing and conventional mixing, C40 and C60 are selected in this paper to verify the influence of mixing time of 60, 75, 90, 105, and 120 s on the compressive strength and durability of concrete comparing vibration mixing and common forced mixing. The results show that the early strength of concrete is more significantly improved in 3 and 7 day; the strength with vibration mixing for mixing 105 s in each age is higher than that of conventional mixing at 120 s; under the condition of guaranteed strength, the mixing time of at least 15 s can be reduced. The strength of C40 concrete with vibration mixing has a peak value with the corresponding mixing time of 105 s, and the rapid growth stage of compressive strength is 15 s earlier than that of conventional mixing. For all mixing time, the electric flux of vibrated concrete is significantly smaller than that of forced concrete, and the change rate is generally above 10%; compared with conventional mixing for 120 s, the durability of C40 and C60 concrete increases by 11.8 and 11.1%, respectively, at the time of vibration mixing for 105 s. It was found that under the same mixing time, the compressive strength of concrete with vibration mixing method is higher than that of conventional mixing. In a certain range, the durability of concrete can be improved by prolonging the mixing time.Zhao WuYang JingZhao WenjunYang ChiDe Gruyterarticleconcretevibration mixingmixing timecompressive strengthdurabilityMaterials of engineering and construction. Mechanics of materialsTA401-492ENScience and Engineering of Composite Materials, Vol 28, Iss 1, Pp 638-651 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	concrete vibration mixing mixing time compressive strength durability Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	concrete vibration mixing mixing time compressive strength durability Materials of engineering and construction. Mechanics of materials TA401-492 Zhao Wu Yang Jing Zhao Wenjun Yang Chi Experimental study on the influence of mixing time on concrete performance under different mixing modes
description	To study the influence of different mixing times on the performance of concrete under vibration mixing and conventional mixing, C40 and C60 are selected in this paper to verify the influence of mixing time of 60, 75, 90, 105, and 120 s on the compressive strength and durability of concrete comparing vibration mixing and common forced mixing. The results show that the early strength of concrete is more significantly improved in 3 and 7 day; the strength with vibration mixing for mixing 105 s in each age is higher than that of conventional mixing at 120 s; under the condition of guaranteed strength, the mixing time of at least 15 s can be reduced. The strength of C40 concrete with vibration mixing has a peak value with the corresponding mixing time of 105 s, and the rapid growth stage of compressive strength is 15 s earlier than that of conventional mixing. For all mixing time, the electric flux of vibrated concrete is significantly smaller than that of forced concrete, and the change rate is generally above 10%; compared with conventional mixing for 120 s, the durability of C40 and C60 concrete increases by 11.8 and 11.1%, respectively, at the time of vibration mixing for 105 s. It was found that under the same mixing time, the compressive strength of concrete with vibration mixing method is higher than that of conventional mixing. In a certain range, the durability of concrete can be improved by prolonging the mixing time.
format	article
author	Zhao Wu Yang Jing Zhao Wenjun Yang Chi
author_facet	Zhao Wu Yang Jing Zhao Wenjun Yang Chi
author_sort	Zhao Wu
title	Experimental study on the influence of mixing time on concrete performance under different mixing modes
title_short	Experimental study on the influence of mixing time on concrete performance under different mixing modes
title_full	Experimental study on the influence of mixing time on concrete performance under different mixing modes
title_fullStr	Experimental study on the influence of mixing time on concrete performance under different mixing modes
title_full_unstemmed	Experimental study on the influence of mixing time on concrete performance under different mixing modes
title_sort	experimental study on the influence of mixing time on concrete performance under different mixing modes
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/e0dd7a20197d44448548a9ea6ffc0cd5
work_keys_str_mv	AT zhaowu experimentalstudyontheinfluenceofmixingtimeonconcreteperformanceunderdifferentmixingmodes AT yangjing experimentalstudyontheinfluenceofmixingtimeonconcreteperformanceunderdifferentmixingmodes AT zhaowenjun experimentalstudyontheinfluenceofmixingtimeonconcreteperformanceunderdifferentmixingmodes AT yangchi experimentalstudyontheinfluenceofmixingtimeonconcreteperformanceunderdifferentmixingmodes
_version_	1718371449128878080

Experimental study on the influence of mixing time on concrete performance under different mixing modes

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