Waste ashes from the burning of the elephant grass (Pennisetum purpureum) as pozzolanic material for the partial substitution of the ordinary Portland cement

• Grant number: 11/16842-5
• Support Opportunities: Scholarships in Brazil - Master
• Start date: March 01, 2012
• End date: February 28, 2013
• Field of knowledge: Engineering - Civil Engineering - Construction Industry
• Principal Investigator: Holmer Savastano Junior
• Grantee: Erika Yukari Nakanishi
• Host Institution: Faculdade de Zootecnia e Engenharia de Alimentos (FZEA). Universidade de São Paulo (USP). Pirassununga , SP, Brazil

Abstract

In the production of Portland cement and lime is a large release of CO2 into the atmosphere. An alternative found by the cement industry to lower the costs, raw materials, environmental pollution and also improve product characteristics is the use of agro-industrial wastes and partial replacement of clinker in cement. An example is the ash residue from the burning of biomass for clean energy. The purpose of this study is to contribute to the feasibility of using elephant grass ashes from the production of energy as an active pozzolan partial replacement of Portland cement. The work will be developed at the Laboratory of Construction and Environment, Faculdade de Zootecnia e Engenharia de Alimentos FZEA / USP with the grass Pennisetum purpureum Schum cv. Cameroon. Different treatments will be applied for the extraction of potassium before and after burning the material. Among the treatments, one will be chosen. The treated ash will be characterized as for their chemical, physical, mineralogical and mechanical properties. Folders will be produced with the addition of elephant grass ashes for evaluating pozzolanic activity in the cement matrix.

Scientific publications

(7)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

VILLAR-COCINA, ERNESTO; FRIAS, MOISES; SAVASTANO, HOLMER; RODIER, LOIC; SANCHEZ DE ROJAS, MARIA ISABEL; SAEZ DEL BOSQUE, ISABEL FUENCISLA; MEDINA, CESAR. Quantitative Comparison of Binary Mix of Agro-Industrial Pozzolanic Additions for Elaborating Ternary Cements: Kinetic Parameters. MATERIALS, v. 14, n. 11, JUN 2021. (11/16842-5, 13/50790-8, 11/12691-2)

NAKANISHI, ERIKA YUKARI; DOS SANTOS, VALDEMIR; CABRAL, MATHEUS ROBERTO; SANTOS, SERGIO FRANCISCO; RODRIGUES, MICHELLE SANTOS; FRIAS, MOISES; SAVASTANO JUNIOR, HOLMER. Efeito do tratamento de água quente nas cinzas de capim elefante calcinadas em diferentes temperaturas. MATERIA-RIO DE JANEIRO, v. 23, n. 3, 2018. (16/07372-9, 13/23810-8, 11/16842-5, 12/51467-3, 13/50790-8)

FRIAS, MOISES; RODRIGUEZ, OLGA; SANCHEZ DE ROJAS, MA ISABEL; VILLAR-COCINA, ERNESTO; RODRIGUES, MICHELLE S.; SAVASTANO JUNIOR, HOLMER. Advances on the development of ternary cements elaborated with biomass ashes coming from different activation process. CONSTRUCTION AND BUILDING MATERIALS, v. 136, p. 73-80, APR 1 2017. (10/16524-0, 11/16842-5, 13/50790-8, 09/17293-5)

NAKANISHI, ERIKA Y.; FRIAS, MOISES; MARTINEZ-RAMIREZ, SAGRARIO; SANTOS, SERGIO F.; RODRIGUES, MICHELLE S.; RODRIGUEZ, OLGA; SAVASTANO, JR., HOLMER. Characterization and properties of elephant grass ashes as supplementary cementing material in pozzolan/Ca(OH)(2) pastes. CONSTRUCTION AND BUILDING MATERIALS, v. 73, p. 391-398, DEC 30 2014. (13/50790-8, 11/16842-5, 09/17293-5, 10/16524-0)

ERIKA Y. NAKANISHI; ERNESTO VILLAR-COCIÑA; SÉRGIO F. SANTOS; MICHELLE S. RODRIGUES; PEDRO S. PINTO; HOLMER SAVASTANO JUNIOR. Tratamentos térmico e químico para remoção de óxidos alcalinos de cinzas de capim elefante. Química Nova, v. 37, n. 5, p. 766-769, 2014-06-00. (11/16842-5, 09/17293-5, 10/16524-0)

ROSSIGNOLO, JOAO ADRIANO; RODRIGUES, MICHELLE SANTOS; FRIAS, MOISES; SANTOS, SERGIO FRANCISCO; SAVASTANO JUNIOR, HOLMER. Improved interfacial transition zone between aggregate-cementitious matrix by addition sugarcane industrial ash. CEMENT & CONCRETE COMPOSITES, v. 80, p. 157-167, JUL 2017. (10/16524-0, 13/50790-8, 09/17293-5, 12/51467-3, 11/16842-5)

NAKANISHI, ERIKA Y.; FRIAS, MOISES; SANTOS, SERGIO F.; RODRIGUES, MICHELLE S.; DE LA VILLA, RAQUEL VIGIL; RODRIGUEZ, OLGA; SAVASTANO JUNIOR, HOLMER. Investigating the possible usage of elephant grass ash to manufacture the eco-friendly binary cements. JOURNAL OF CLEANER PRODUCTION, v. 116, p. 236-243, MAR 10 2016. (13/50790-8, 11/16842-5, 09/17293-5, 10/16524-0)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

NAKANISHI, Erika Yukari. Residual ash from biomass of elephant grass (Pennisetum purpureum) as pozzolanic material for partial substitution of Portland cement. 2013. Master's Dissertation - Universidade de São Paulo (USP). Faculdade de Zootecnica e Engenharia de Alimentos (FZE/BT) Pirassununga.