Improvement the structural behavior of recycled RC elements using CdO nanoparticles

Construction Innovation: Information, Process, Management Pub Date : 2018-01-09 DOI:10.1108/CI-01-2017-0011

A. Atta, Nehal Ali, M. Taman, E. Etman

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引用次数: 1

Abstract

Purpose This study aims to investigate the use of CdO nanoparticles with recycled aggregates (RAs) and its effect on the structural behavior of reinforced concrete (RC) slab elements. Design/methodology/approach The study has been conducted through three phases: in the first phase, the structure of lab-synthesized CdO nanoparticles was investigated and then cement was partially replaced by CdO nanoparticles to estimate the optimum dose. The second phase focused on the properties of the RA collected from demolition wastes. In the third phase, RC slabs with different concrete mixes using RA and CdO nanoparticles were experimentally tested. Findings The results indicated good effect of using CdO nanoparticles with RA to improve the RC slab specimens’ behavior compared with the control specimen. Originality/value In present times, nanoparticles have a promising importance in the construction field. The influence of nanoparticles on the compressive strength of the concrete has been investigated by many researchers, but using it with RA is considered a new topic.

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利用纳米CdO改善再生RC元件的结构性能

本研究旨在探讨纳米CdO与再生骨料(RAs)的使用及其对钢筋混凝土(RC)板单元结构性能的影响。本研究共分三个阶段进行:第一阶段，研究实验室合成的CdO纳米颗粒的结构，然后用CdO纳米颗粒部分替代水泥，以估计最佳剂量。第二阶段重点研究从拆迁废物中收集的RA的性质。在第三阶段，对不同混凝土配合比的RC板进行了RA和CdO纳米颗粒的实验测试。结果表明，与对照试件相比，纳米CdO与RA对RC板试件的性能有较好的改善效果。目前，纳米颗粒在建筑领域具有广阔的应用前景。纳米颗粒对混凝土抗压强度的影响已经有很多研究者进行了研究，但将其与RA结合使用是一个新的课题。

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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Construction Innovation: Information, Process, Management

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