Investigating the Effect of Various Fibers on Plasticity and Compressive Strength of Concrete Samples

IF 0.7 4区 材料科学 Q4 MATERIALS SCIENCE, CHARACTERIZATION & TESTING Strength of Materials Pub Date : 2024-05-08 DOI:10.1007/s11223-024-00639-3
L. Sun, J. Fu, D. Wang, H. Haeri, C. L. Guo, H. Cheng
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Abstract

The addition of fibers helps to increase the performance of concrete in terms of resistance and flexibility. Different types of fibers that have different mechanical properties may change the behavior of concrete. Fiber-reinforced concrete with varied combinations of fibers (steel, macro synthetic, and polypropylene fibers) in 1% volume is investigated in this research. Concrete samples were fabricated from a combination of two types of fibers with different percentages to measure the compressive strength with the approach of determining the optimal ratio of fibers. The results showed that the hybrid samples containing steel fibers provide higher compressive strength compared to the samples containing macro synthetic and polypropylene fibers. Macro synthetic and polypropylene fibers in concrete samples have played a significant role in increasing the flexibility and efficiency of concrete, as well as significantly reducing cracking and increasing durability and toughness. In these hybrid models, coherence is preserved in the event of failure. The combination of polypropylene fibers with both steel and macro synthetic fibers significantly reduces the compressive strength of concrete samples. In concrete samples with hybrid fibers, samples with a combination of macro synthetic and steel fibers had higher compressive strength than samples with a combination of steel and polypropylene fibers.

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研究各种纤维对混凝土样品塑性和抗压强度的影响
添加纤维有助于提高混凝土的抗性和柔韧性。不同类型的纤维具有不同的机械性能,可能会改变混凝土的性能。本研究对使用不同纤维组合(钢纤维、大合成纤维和聚丙烯纤维)的纤维增强混凝土进行了研究。混凝土样品由两种不同比例的纤维组合而成,以测定抗压强度,从而确定纤维的最佳比例。结果表明,与含有大型合成纤维和聚丙烯纤维的样品相比,含有钢纤维的混合样品具有更高的抗压强度。混凝土样品中的大型合成纤维和聚丙烯纤维在提高混凝土的柔韧性和效率方面发挥了重要作用,同时还显著减少了开裂,提高了耐久性和韧性。在这些混合模型中,失效时可保持连贯性。聚丙烯纤维与钢纤维和大型合成纤维的结合可显著降低混凝土样品的抗压强度。在含有混合纤维的混凝土样品中,含有大型合成纤维和钢纤维组合的样品比含有钢纤维和聚丙烯纤维组合的样品具有更高的抗压强度。
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来源期刊
Strength of Materials
Strength of Materials MATERIALS SCIENCE, CHARACTERIZATION & TESTING-
CiteScore
1.20
自引率
14.30%
发文量
89
审稿时长
6-12 weeks
期刊介绍: Strength of Materials focuses on the strength of materials and structural components subjected to different types of force and thermal loadings, the limiting strength criteria of structures, and the theory of strength of structures. Consideration is given to actual operating conditions, problems of crack resistance and theories of failure, the theory of oscillations of real mechanical systems, and calculations of the stress-strain state of structural components.
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