Description

ACI 241R – Report on Application of Nanotechnology and Nanomaterials in Concrete

This report provides information for those involved inconcrete design and construction so they are familiar withthe factors involved in the effective use of nanomaterials andnanotechnology. This document is not intended as a primaryreference source for researchers. Rather, it is aimed at engineersand architects who wish to gain further understandingof the effects of nanomaterials and nanoadditives being usedor proposed for application in concrete.

Application of available technology is demonstrated for arange of nanoconcrete structures to show that technologicalrisks are at a known and acceptable level and high industrystandards maintained. An overview reports on the maindevelopments in the fields of nanotechnology and nanosciencethat are related to concrete, along with their implicationsand key findings. Factors affecting performance offresh and hardened concrete are discussed to enable thoseinvolved in the evaluation and formulation of concretemixtures to determine the effects of these factors.

The potential of nanotechnology to improve concreteperformance can lead to the development of novel, sustainable,advanced cement-based composites with uniquemechanical, thermal, and electrical properties. New developmentshave already taken place in nanoengineering andnanomodification of concrete. Current challenges, includingproper dispersion, compatibility of the nanomaterials incement, processing, manufacturing, safety, handling issues,and cost all need to be solved before the complete potentialof nanotechnology can be realized in concrete applications.Additionally, introduction of these novel materials into theconstruction practice requires an evaluation and understandingof their potential impact on the environment andhuman health.