Harvest residues ash as a pozzolanic additive for engineering applications: A review and the catalogue

Abstract

Biomass ashes originating from wood and harvest residues combustion may be considered as one of the prospective environmentally friendly candidates for supplementary cementitious materials (SCM) production. In the region of Vojvodina province, biomass waste is becoming increasingly important as ''green'' fuel, thus allowing the reduction of the environmental impact of waste disposal, lowering the expensive fossil fuels application and its subsequent greenhouse gasses emission. In the light of the above, the present paper surveys the experimental studies of harvest residues ash (HRA) as a pozzolanic additive for engineering applications. Thus far conducted research on the HRA possible application in cementitious systems, worldwide and in the studied region, has been summarized and the benefits of such approaches outlined. Finally, locally available types of wheat straw, soya straw, sunflower husk, silo waste, oil rapeseed - based ashes were collected, characterized both physically and chemically, evaluated and presented through catalogue. The reactivity results, depending on the amorphous silica content and the achieved level of fineness, are very promising in terms of the potential reuse of these ashes in cementing systems.

Characterization of harvest residues ashes and ceramic waste powders originating from Vojvodina as potential supplementary cementitious materials

“…Availability of harvest residues ashes in Autonomous Province of Vojvodina (APV) has been investigated within the realization of the project IPA Interreg ECO Build in the period 2017-2020. At the time, eleven companies were found to use harvest residues as an energy source for obtaining heat energy [23]. In 2022, most of these companies have continued to utilize this renewable energy source (RES) and generate of biomass ashes.…”

Effects of Grinding Methods and Water-to-Binder Ratio on the Properties of Cement Mortars Blended with Biomass Ash and Ceramic Powder

“…The majority of the agricultural biomass resources in Serbia lie in corn biomass, more than 25% in the straw of cereals, and the rest in harvest residues of sunflower, soybean and oilseed rape. The cataloging of the available harvest residue ashes in Serbia has been conducted, and the results of testing their basic chemical and physical properties have been reported in [ 10 ]. Exploring the possibility of the application of HRA as SCMs in mortar production in Serbia has been recently initiated.…”