Experimental Study on the Mechanical Properties and Durability of High-Content Hybrid Fiber–Polymer Concrete

Polymer-modified concrete and fiber concrete are two excellent paving materials that improve the performance of some concrete, but the performance of single application material is still limited. In this paper, polymer-modified concrete with strong deformation and fiber concrete with obvious crack r...

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Autores principales:	Chaohua Zhao, Zhijian Yi, Weiwei Wu, Zhiwei Zhu, Yi Peng, Jie Liu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	steel fiber-reinforced concrete polymer-modified concrete crack resistance mechanism mechanical properties durability Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/0a56840fe20146988f56393605f0c95f
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spelling	oai:doaj.org-article:0a56840fe20146988f56393605f0c95f2021-11-11T17:49:16ZExperimental Study on the Mechanical Properties and Durability of High-Content Hybrid Fiber–Polymer Concrete10.3390/ma142162341996-1944https://doaj.org/article/0a56840fe20146988f56393605f0c95f2021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6234https://doaj.org/toc/1996-1944Polymer-modified concrete and fiber concrete are two excellent paving materials that improve the performance of some concrete, but the performance of single application material is still limited. In this paper, polymer-modified concrete with strong deformation and fiber concrete with obvious crack resistance and reinforcement effect were compounded by using the idea of composite material design so as to obtain a high-performance pavement material. The basic mechanical properties of high-content hybrid fiber–polymer-modified concrete, such as workability, compression, flexural resistance, and environmental durability (such as sulfate resistance) were studied by using the test regulations of cement concrete in China. The main results were as follows. (1) The hybrid fiber–polymer concrete displayed reliable working performance, high stiffness, and a modulus of elasticity as high as 35.93 GPa. (2) The hybrid fiber–polymer concrete had a compressive strength of 52.82 MPa, which was 31.2% higher than that of the plain C40 concrete (40.25 MPa); the strength of bending of the hybrid concrete was 11.51 MPa, 191.4% higher than that of the plain concrete (3.95 MPa). (3) The corrosion resistance value of the hybrid fiber–polymer concrete was 81.31%, indicating its adjustability to sulfate attack environments. (4) According to cross-sectional scanning electron microscope (SEM) images, the hybrid fiber–polymer concrete was seemingly more integrated with a dense layer of cementing substance on its surface along with fewer microholes and microcracks as when compared to the ordinary concrete. The research showed that hybrid fiber–polymer concrete had superior strength and environmental erosion resistance and was a pavement material with superior mechanical properties.Chaohua ZhaoZhijian YiWeiwei WuZhiwei ZhuYi PengJie LiuMDPI AGarticlesteel fiber-reinforced concretepolymer-modified concretecrack resistance mechanismmechanical propertiesdurabilityTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6234, p 6234 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	steel fiber-reinforced concrete polymer-modified concrete crack resistance mechanism mechanical properties durability Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	steel fiber-reinforced concrete polymer-modified concrete crack resistance mechanism mechanical properties durability Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Chaohua Zhao Zhijian Yi Weiwei Wu Zhiwei Zhu Yi Peng Jie Liu Experimental Study on the Mechanical Properties and Durability of High-Content Hybrid Fiber–Polymer Concrete
description	Polymer-modified concrete and fiber concrete are two excellent paving materials that improve the performance of some concrete, but the performance of single application material is still limited. In this paper, polymer-modified concrete with strong deformation and fiber concrete with obvious crack resistance and reinforcement effect were compounded by using the idea of composite material design so as to obtain a high-performance pavement material. The basic mechanical properties of high-content hybrid fiber–polymer-modified concrete, such as workability, compression, flexural resistance, and environmental durability (such as sulfate resistance) were studied by using the test regulations of cement concrete in China. The main results were as follows. (1) The hybrid fiber–polymer concrete displayed reliable working performance, high stiffness, and a modulus of elasticity as high as 35.93 GPa. (2) The hybrid fiber–polymer concrete had a compressive strength of 52.82 MPa, which was 31.2% higher than that of the plain C40 concrete (40.25 MPa); the strength of bending of the hybrid concrete was 11.51 MPa, 191.4% higher than that of the plain concrete (3.95 MPa). (3) The corrosion resistance value of the hybrid fiber–polymer concrete was 81.31%, indicating its adjustability to sulfate attack environments. (4) According to cross-sectional scanning electron microscope (SEM) images, the hybrid fiber–polymer concrete was seemingly more integrated with a dense layer of cementing substance on its surface along with fewer microholes and microcracks as when compared to the ordinary concrete. The research showed that hybrid fiber–polymer concrete had superior strength and environmental erosion resistance and was a pavement material with superior mechanical properties.
format	article
author	Chaohua Zhao Zhijian Yi Weiwei Wu Zhiwei Zhu Yi Peng Jie Liu
author_facet	Chaohua Zhao Zhijian Yi Weiwei Wu Zhiwei Zhu Yi Peng Jie Liu
author_sort	Chaohua Zhao
title	Experimental Study on the Mechanical Properties and Durability of High-Content Hybrid Fiber–Polymer Concrete
title_short	Experimental Study on the Mechanical Properties and Durability of High-Content Hybrid Fiber–Polymer Concrete
title_full	Experimental Study on the Mechanical Properties and Durability of High-Content Hybrid Fiber–Polymer Concrete
title_fullStr	Experimental Study on the Mechanical Properties and Durability of High-Content Hybrid Fiber–Polymer Concrete
title_full_unstemmed	Experimental Study on the Mechanical Properties and Durability of High-Content Hybrid Fiber–Polymer Concrete
title_sort	experimental study on the mechanical properties and durability of high-content hybrid fiber–polymer concrete
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/0a56840fe20146988f56393605f0c95f
work_keys_str_mv	AT chaohuazhao experimentalstudyonthemechanicalpropertiesanddurabilityofhighcontenthybridfiberpolymerconcrete AT zhijianyi experimentalstudyonthemechanicalpropertiesanddurabilityofhighcontenthybridfiberpolymerconcrete AT weiweiwu experimentalstudyonthemechanicalpropertiesanddurabilityofhighcontenthybridfiberpolymerconcrete AT zhiweizhu experimentalstudyonthemechanicalpropertiesanddurabilityofhighcontenthybridfiberpolymerconcrete AT yipeng experimentalstudyonthemechanicalpropertiesanddurabilityofhighcontenthybridfiberpolymerconcrete AT jieliu experimentalstudyonthemechanicalpropertiesanddurabilityofhighcontenthybridfiberpolymerconcrete
_version_	1718431984390242304

Experimental Study on the Mechanical Properties and Durability of High-Content Hybrid Fiber–Polymer Concrete

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