Assessement of binary systems of sugar cane bagasse ash/blast furnace slag in the production of alkali-activated binders

• Grant number: 15/13576-3
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: September 01, 2015
• End date: April 30, 2016
• Field of knowledge: Engineering - Civil Engineering - Construction Industry
• Principal Investigator: Mauro Mitsuuchi Tashima
• Grantee: Raul Cavesan Wehbe
• Host Institution: Faculdade de Engenharia (FEIS). Universidade Estadual Paulista (UNESP). Campus de Ilha Solteira. Ilha Solteira , SP, Brazil

Abstract

This project aims to study the viability of use sugar cane bagasse ash (SCBA) as raw material in the production of binary systems of sugar cane bagasse ash/blast furnace slag activated with sodium and potassium hydroxide solutions. The SCBA is obtained from an auto-combustion process and, its chemical and physical properties will be assessed by means of X ray fluorescence (XRF), loss of ignition (LOI), particle size diameter and X ray diffraction (XRD). Moreover, the compressive strength of alkali-activated mortars with different percentages of blast furnace replacement (0, 25, 33 and 50%, in mass) will be assessed after 7, 28 and 90 curing days at room temperature. It is expected that SCBA can present a high degree valorization when employed for this purpose.