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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.)

Pozzolanic Characterization of Cuban Bamboo Leaf Ash: Calcining Temperature and Kinetic Parameters

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Author(s):
Villar Cocina, Ernesto [1] ; Savastano, Holmer [2] ; Rodier, Loic [2] ; Lefran, Manuel [1] ; Frias, Moises [3]
Total Authors: 5
Affiliation:
[1] Cent Univ Las Villas, Dept Phys, Santa Clara, CA 54830 - USA
[2] Univ Sao Paulo, POB 23, BR-13635900 Pirassununga, SP - Brazil
[3] CSIC, Eduardo Torroja Inst, C Serrano Galvache 4, Madrid 28033 - Spain
Total Affiliations: 3
Document type: Journal article
Source: WASTE AND BIOMASS VALORIZATION; v. 9, n. 4, p. 691-699, APR 2018.
Web of Science Citations: 4
Abstract

The paper presents a study of the pozzolanic activity of Cuban bamboo leaf ash. To evaluate the pozzolanic activity a conductometric method was used, which is based on the measurement of variation in electrical conductivity of a bamboo leaf ash (BLAsh)/lime solution with reaction time. Later, the kinetic parameters (in particular, the reaction rate constant and free energy of activation) are quantified by applying a kinetic-diffusive model. The pozzolanic activity is quantitatively evaluated according to the values obtained of the kinetic parameters. Other experimental techniques, such as X-ray diffraction and scanning electron microscopy, which complement the results coming from the conductometric method, were applied. Also, the paper reports on the influence of calcining temperature (500, 600 and 700 degrees C) on the pozzolanic activation of the bamboo leaves. The results show good pozzolanic properties of bamboo leaf ashes for temperatures between 500 and 700 degrees C, and only a little difference on the activation of bamboo leaf ash as a function of the calcining temperature applied. The BLAsh calcined at 500 degrees C showed the highest pozzolanic activity. (AU)

FAPESP's process: 11/12691-2 - Collaboration and advising in activities related with research projects in progress: topic: characterization and evaluation of agricultural wastes as pozzolanic materials for its efficient use in the production of sustainable construction materials
Grantee:Holmer Savastano Junior
Support Opportunities: Research Grants - Visiting Researcher Grant - International
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