A study of the application of residue from burned biomass in mortars

Abstract

The goal of this work was to study the viability of burnt biomass residue from a pulp and paper plant applied as a raw material for mortar used in the construction industry. The wastebottom ash -was incorporated into the mortar as a mineral addition to the Portland cement. The effect of the waste's grain size on the properties of mortars containing 10% in volume of waste was investigated, as well as the effect of the concentration of waste with grain size under 0.15 mm. The samples were evaluated after 28 days of aging by uniaxial compression, leaching test and scanning electron microscopy. These characterization techniques indicated that the properties of the mortars depend on the concentration, granulation and size distribution of the waste in the mortar's structure. Furthermore, some chemical elements may be present in stabilized and/or encapsulated form in the cement matrix.

Eco-Efficient Cement-Based Materials Using Biomass Bottom Ash: A Review

“…Maschio et al [11] Modolo et al [6] Beltran et al [18] Rosales et al [21] Beltrán et al [19] Lessard et al [25] Fontes et al [27] Rosales et al [23] Cabrera et al [7] Cabrera et al [20] Carrasco et al [30] Medina et al [28] Sklivanitiv et al [29] Origin of BBA BBA particles generally have a lower density and higher absorption than natural materials such as sand and the particle size varies depending on the type of furnace [7,22,31]; this is due to the general aspect and morphology of BBA, which usually have angular shapes and rough textures, as shown in Figure 1. The chemical composition of BBA varies considerably depending on the combustion temperatures and type of biomass [32], presenting different phases, which influence the density and absorption of the particles, which explains the range of values obtained by different authors.…”

Evaluation of Mechanical Properties of Sealing Mortar with Partial Replacement of Portland Cement by Stone Crusher Waste

“…Thus, several researchers studied technical feasibility for the incorporation of different residues in the production of mortars, aiming at the partial replacement of the cement, which is the most important agglomerant in the production of the mortar. Among them, they evaluated the use of marble residues 13,11 , eggshell powder 8 , waste paper and cellulose, as well as construction and demolition industries for application in cement-based materials 14 , biomass residue from a pulp and paper mill 15 , heavy ash obtained from the combustion of mineral coal 16 , biomass ash 17 and sewage sludge 18 . These articles aim to contribute to the sustainable development by making greater use of industrial residues in the civil construction as mortars 12 and concrete 19 .…”