Physical Properties and Durability of Green Fiber-Reinforced Concrete for Road Bridges

IF 0.6 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Annales De Chimie-science Des Materiaux Pub Date : 2021-04-30 DOI:10.18280/ACSM.450211

Chenglong Ma

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引用次数: 1

Abstract

Received: 11 December 2020 Accepted: 23 March 2021 Dry shrinkage and brittleness are outstanding problems with the concrete in road bridges. However, the road bridge concrete has not been systematically studied. No research has fully considered the influence of age on the physical-mechanical properties of road bridge concrete. There are few reports on how the green fiber dosage affects road bridge concrete. This paper analyzes the physical properties and durability of green fiberreinforced concrete for road bridges (RBGFRC). Firstly, calculation methods were provided for physical-mechanical properties of RBGFRC, such as crack resistance, shear capacity of oblique section, and bending capacity of normal section. Next, the physicalmechanical properties of RBGFRC were investigated in terms of flexural strength, compressive strength, splitting tensile strength, and early cracking strength; the durability of the material was discussed from three aspects: carbonation resistance, resistance to freeze-thaw cycles, and porosity. Experimental results verify the good physical properties and durability of RBGFRC. The research provides a reference for applying RBGFRC in other scenarios.

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道路桥梁用绿色纤维增强混凝土的物理性能和耐久性

干收缩和脆性是公路桥梁混凝土存在的突出问题。然而，公路桥梁混凝土还没有系统的研究。目前还没有研究充分考虑龄期对路桥混凝土物理力学性能的影响。关于绿色纤维掺量对路桥混凝土性能影响的报道很少。本文对道路桥梁用绿色纤维混凝土的物理性能和耐久性进行了分析。首先，给出了RBGFRC抗裂能力、斜截面抗剪能力、正截面抗弯能力等物理力学性能的计算方法;其次，研究了RBGFRC的抗弯强度、抗压强度、劈裂抗拉强度和早期开裂强度等物理力学性能;从抗碳化性、抗冻融循环性和孔隙率三个方面对材料的耐久性进行了探讨。实验结果验证了RBGFRC具有良好的物理性能和耐久性。该研究为RBGFRC在其他场景中的应用提供了参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Annales De Chimie-science Des Materiaux 工程技术-材料科学：综合

CiteScore

1.70

自引率

25.00%

发文量

审稿时长

>12 weeks

期刊介绍： The ACSM is concerning the cutting-edge innovations in solid material science. The journal covers a broad spectrum of scientific fields, ranging all the way from metallurgy, semiconductors, solid mineral compounds, organic macromolecular compounds to composite materials. The editorial board encourages the submission of original papers that deal with all aspects of material science, including but not limited to synthesis and processing, property characterization, reactivity and reaction kinetics, evolution in service, and recycling. The papers should provide new insights into solid materials and make a significant original contribution to knowledge.