碳纤维、粉煤灰和m砂对工程胶凝复合材料（ECC）性能的协同效应

IF 6.2 2区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

Ain Shams Engineering Journal Pub Date : 2026-03-01 Epub Date: 2026-02-07 DOI:10.1016/j.asej.2026.104023

Asmitha Nazeema Raheem , Rama Mohan Rao Pannem

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引用次数: 0

摘要

混凝土以其强度和其他特性而闻名。但它缺乏抗拉能力，因此在混凝土中使用了钢筋。工程胶凝复合材料（ECC）是一种延性材料，以其具有多重开裂行为的应变硬化而闻名。本文主要介绍了碳纤维和M - Sand复合材料ECC的发展。M -沙子被选为细骨料，因为它容易获得，质量，以及天然河砂的日益稀缺。研究了不同用量的碳纤维对和易性的影响，M - Sand是河砂的可持续和实用的替代品。采用FE-SEM和Micro CT扫描对ECC的微观结构进行了分析。碳纤维含量为0.25%，w/b较低，强度可达73 MPa，加工性能良好。用粉煤灰代替砂石改善了和易性，降低了孔隙度，提高了强度。

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Synergistic effect of carbon fiber, fly ash, and M-sand on the performance of Engineered Cementitious Composites (ECC)

Concrete is known for its strength and other properties. But it lacks tensile capacity, due to which reinforcements are used in concrete. Engineered Cementitious Composites (ECC) are a ductile material that is known for its strain hardening with multiple cracking behaviour. This paper focuses on the development of ECC using carbon fiber and M−Sand. M−Sand was chosen as fine aggregate due to its easy availability, quality, and increasing scarcity of natural river sand. The effect of different dosages of carbon fiber on workability was investigated, with M−Sand providing sustainable and practical alternative to river sand. FE-SEM and Micro CT scan was conducted to analyse the microstructure of ECC. A high strength of 73 MPa was achieved with 0.25% carbon fiber and low w/b, while exhibiting good workability. Replacing sand with fly ash improved workability, reduced porosity, and improved strength.

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来源期刊

Ain Shams Engineering Journal Engineering-General Engineering

CiteScore

10.80

自引率

13.30%

发文量

441

审稿时长

49 weeks

期刊介绍： in Shams Engineering Journal is an international journal devoted to publication of peer reviewed original high-quality research papers and review papers in both traditional topics and those of emerging science and technology. Areas of both theoretical and fundamental interest as well as those concerning industrial applications, emerging instrumental techniques and those which have some practical application to an aspect of human endeavor, such as the preservation of the environment, health, waste disposal are welcome. The overall focus is on original and rigorous scientific research results which have generic significance. Ain Shams Engineering Journal focuses upon aspects of mechanical engineering, electrical engineering, civil engineering, chemical engineering, petroleum engineering, environmental engineering, architectural and urban planning engineering. Papers in which knowledge from other disciplines is integrated with engineering are especially welcome like nanotechnology, material sciences, and computational methods as well as applied basic sciences: engineering mathematics, physics and chemistry.