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Banomaterials in construction: An overview

This mini-review first aims at presenting fundamental knowledge about nanomaterials such as history and definition, classification, and fabrication. The application of nanomaterials in construction industry is summarized in the later part. | Tạp chí Khoa học công nghệ và Thực phẩm 15 (1) (2018) 34-45 NANOMATERIALS IN CONSTRUCTION: AN OVERVIEW Huynh Van Tien1*, Giang Ngoc Ha1, Vo Pham Phuong Trang1, Vu Bao Khanh2 1 Ho Chi Minh City University of Food Industry 2 Nguyen Tat Thanh University *Email: tienhv@cntp.edu.vn Received: 26 April 2018; Accepted for publication: 5 June 2018 ABSTRACT Nanomaterials (carbon nanotube, graphene, metal oxides) with scientifically interesting properties have attracted researchers around the globe to come into a pursuit of applying in construction industry. The potential applications might include mechanical improvement, energy saving, antimicrobial and self-cleaning surfaces. This mini-review first aims at presenting fundamental knowledge about nanomaterials such as history and definition, classification, and fabrication. The application of nanomaterials in construction industry is summarized in the later part. Many studies were performed to show benefits of nanomaterials once they are incorporated into conventional materials used in construction industry. However, safe design, production, reuse, and remanufacturing should be addressed to enhance the sustainability of both the nanotechnology and construction industry. Keywords: Nanotechnology, construction, concrete, coating, nanomaterials. 1. INTRODUCTION 1.1. History Nanotechnology might have been inspired by the lecture "There is plenty of room at the bottom" given by Richard Feynman in 1959. The speech was considered as sci-fiction at the time because he had mentioned the possibility of manipulating materials "atom by atom". By the invention of Scanning Tunneling Microscope and Atomic Force Microscope (AFM), the ability of imaging and fabrication at the nanoscale has come to the reality. The term "nanotechnology" was first used in 1974 by Norio Taniguchi. The term was applied in semiconductor processes which include processing of materials by changing one atom or one molecules. In 1981, Eric Drexler used the term .