Title
Natural fibers as reinforcement additives for geopolymers – A review of potential eco-friendly applications to the construction industry
Date Issued
2020
Access level
metadata only access
Resource Type
review
Publisher(s)
Elsevier B.V.
Abstract
The construction industry is responsible not only for the consumption of huge amounts of natural resources but also for the emission of large quantities of CO2. Geopolymers have emerged as an environmentally friendly alternative for conventional construction materials since they can be produced from industrial wastes. Similarly to ordinary concrete, geopolymers can also improve their mechanical properties when reinforced with fibers. This paper presents a review of recent advances in the production of natural fiber-reinforced geopolymers produced from industrial by-products and waste materials as promising sustainable construction materials. Regarding the use of industrial wastes, this paper reports the use of fly ash, ground granulated blast furnace slag, construction and demolition wastes and mine tailings for the production of high strength geopolymers. At the same time, a survey of successful reinforcement with natural fibers (from plants such as pineapple leaf, sisal, linen, flax, sweet sorghum, and cotton) is also reported. In this respect, it has been found that the type of fiber, dimensions, amount and pretreatment of fibers affect the final properties of the resulting composites. Moreover, layer reinforcement using woven and non-woven layers of natural fibers seem to be more effective than short fibers randomly oriented.
Volume
23
Language
English
OCDE Knowledge area
Ingeniería de materiales
Ingeniería de la construcción
Ecología
Subjects
Scopus EID
2-s2.0-85073981240
Source
Sustainable Materials and Technologies
ISSN of the container
22149937
Sponsor(s)
This research was supported by Consejo Nacional de Ciencia y Tecnología (CONCYTEC) and Servicio Nacional de Capacitación para la Industria de la Construcción (SENCICO) of Peru under the Contract N° 105-2017-FONDECYT. Additional funding was also received from CONCYTEC under the ERANet-LAC project (ELAC2015/T02-0721): “Development of eco-friendly composite materials based on geopolymer matrix and reinforced with waste fibers'. Guido Silva acknowledges CONCYTEC for funding his Ph.D. studies under the scholarship N° 10-2018-FONDECYT/BM.
Sources of information:
Directorio de Producción Científica
Scopus