A review on partial substitution of nanosilica in concrete-Reference-Cited by-同舟云学术

A review on partial substitution of nanosilica in concrete

Published:2024-01-01 Issue:1 Volume:63 Page:
ISSN:1605-8127
Container-title:REVIEWS ON ADVANCED MATERIALS SCIENCE
language:en
Short-container-title:

Author:

Xiaohan Zhang¹,Ahmad Jawad²,Jebur Yasir Mohammed³,Deifalla Ahmed Farouk⁴

Affiliation:

1. School of Mechanical Engineering, Nanjing University of Science and Technology , Nanjing , 210094 , China

2. Department of Civil Engineering, Swedish College of Engineering (SCET) , Wah Cantt , 4707 , Pakistan

3. Building and Construction Techniques Engineering Department, Al-Mustaqbal University College , Babylon , Iraq

4. Structural Engineering Department, Future University in Egypt , New Cairo , 11845 , Egypt

Abstract

Abstract One of the most popular and widely used cementitious nanoparticle materials is nanosilica (NNS). Although several researchers discuss how NNS affects the characteristics of concrete, knowledge is dispersed, making it difficult for the reader to assess the precise advantages of NNS. Therefore, a detailed review is required for the substitution of NNS in concrete. The present reviews collect the recently updated information on NNS as concrete ingredients. First, a summary of the manufacturing, physical, and chemical characteristics of NNS is provided. Second, the characteristics of fresh concrete are examined, including its effect on setting time, flowability, air content, and fresh density. Third, strength properties such as compressive, tensile, and flexure capacity are discussed. Finally, microstructure analyses such as scanning electronic microscopy and X-ray diffraction are discussed. The results show that NNS enhanced the mechanical and durability of concrete due to the pozzolanic reaction and microfilling voids but decreased the slump flow. The optimum dose is important for maximum performance. The typical optimum dose of NNS varies from 1 to 3% by weight of cement. This article also suggests future research directions to improve the performance of NNS-based concrete.

Publisher

Walter de Gruyter GmbH

Link

https://www.degruyter.com/document/doi/10.1515/rams-2023-0157/pdf

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