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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Adjusting curing parameters for innovative and durable vegetable fibre-cement composites

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Author(s):
Esther Urrea-Ceferino, Gloria [1, 2] ; Panesar, Daman K. [3] ; Savastano Junior, Holmer [1]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Dept Biosyst Engn, Ave Duque Caxias Norte 225, BR-13635900 Pirassununga, SP - Brazil
[2] UPB, Fac Ingn Civil, Escuela Ingn & Arquitectura, Grp Invest Ingn Civil & Arquitectura, Campus Monteria, Carrera 6 97 A-99, Monteria 230002, Cordoba - Colombia
[3] Univ Toronto, Dept Civil Engn, Toronto, ON M5S 1A4 - Canada
Total Affiliations: 3
Document type: Journal article
Source: CEMENT & CONCRETE COMPOSITES; v. 103, p. 121-133, OCT 2019.
Web of Science Citations: 0
Abstract

This work adjusts curing parameters for innovative and durable vegetable fibre-cement composites produced by a slurry vacuum dewatering process. The raw materials used for the cementitious composite mix designs applied in this investigation include: Portland cement, ground silica as an inert filler and vegetable fibre reinforcement. The curing conditions were conducted on eight sets of samples studying the effects of: initial hydration duration (10 h or 24 h); accelerated carbonation exposure (0.035% or 20% of CO2 concentration); and accelerated aging tests (before and after 200 soak \& dry cycles). The mechanical properties of cementitious composites subjected to eight different curing and aging conditions, with a statistical significance increase in carbonated composite strength that is attributed to the packing density of the mixture containing an inert filler (silica quartz).The use of unbleached pulp with silica as a mineral addition in combination with 10 h of initial hydration prior to CO2 curing is indicated to improve the efficiency of the operational steps in the carbonated fibre-cement industry. (AU)

FAPESP's process: 12/51467-3 - Agroindustrial wastes and their potential use as appropriate materials for housing and infraestructure (Agrowaste)
Grantee:Holmer Savastano Junior
Support Opportunities: Research Projects - Thematic Grants