Study of carbon nano-modifier of fly ash in cement concrete mixtures of civil engineering

IF 1.9 4区材料科学 Q3 Materials Science

Science and Engineering of Composite Materials Pub Date : 2022-01-01 DOI:10.1515/secm-2022-0018

A. Bieliatynskyi, Shilin Yang, V. Pershakov, M. Shao, M. Ta

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引用次数: 8

Abstract

Abstract Modern materials science has faced the problem of reducing the cost of raw materials and labor costs while obtaining basic construction materials (cement concrete) with increased performance properties. The article aims to substantiate the use of carbon nanotubes of fly ash as a cement concrete modifier to be reasonable for solving the above problem. Experimental studies are carried out using standard and special methods. The technological properties of cement concrete mixtures are determined in accordance with the European and American standards. The study investigates the impact of carbon nanotubes of fly ash on the structure and properties of the mineral Portland cement binder. The article provides the examination of structural and rheological characteristics of nano-modified cement concrete mixtures. The effect of a carbon nano-modifier on the strength, deformation, and performance properties of cement concrete mixtures is defined. As a result, the optimal composition of nano-modified cement concrete mixture has been developed that meets the criteria of concrete compressive strength and flowability. Positive research results allow determining the areas of application of the obtained compositions in civil engineering.

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粉煤灰碳纳米改性剂在土木工程水泥混凝土混合料中的应用研究

摘要现代材料科学面临着在获得性能提高的基本建筑材料（水泥混凝土）的同时降低原材料成本和劳动力成本的问题。本文旨在证明使用粉煤灰碳纳米管作为水泥混凝土改性剂对于解决上述问题是合理的。实验研究采用标准和特殊方法进行。水泥混凝土混合物的技术性能是根据欧洲和美国标准确定的。研究了粉煤灰中碳纳米管对矿物硅酸盐水泥粘结剂结构和性能的影响。本文对纳米改性水泥混凝土混合料的结构和流变特性进行了研究。定义了碳纳米改性剂对水泥混凝土混合物强度、变形和性能的影响。因此，开发出了符合混凝土抗压强度和流动性标准的纳米改性水泥混凝土混合料的最佳组成。积极的研究结果允许确定所获得的组合物在土木工程中的应用领域。

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来源期刊

Science and Engineering of Composite Materials 工程技术-材料科学：复合

CiteScore

3.10

自引率

5.30%

发文量

审稿时长

4 months

期刊介绍： Science and Engineering of Composite Materials is a quarterly publication which provides a forum for discussion of all aspects related to the structure and performance under simulated and actual service conditions of composites. The publication covers a variety of subjects, such as macro and micro and nano structure of materials, their mechanics and nanomechanics, the interphase, physical and chemical aging, fatigue, environmental interactions, and process modeling. The interdisciplinary character of the subject as well as the possible development and use of composites for novel and specific applications receives special attention.