A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Evaluation of sugarcane bagasse ash for lightweight aggregates production
Graphical abstract Display Omitted
Highlights LWA were produced from sugarcane bagasse ash (SBA) and red clay. SBA were submitted to two different milling processes (knife and ball). Mixes with ratio SiO2/ƩOF below 1.0 was less susceptible to bloating. The residue fineness (ball mill) corroborated for a better performance of LWAs. It was possible to formulate LWAs with a high content (90%) of waste (SBA).
Abstract The present paper aims at researching the development of lightweight aggregates from sugarcane bagasse ash (SBA) sintering and binary mixtures of SBA and red clay (RC). Two different SBA were evaluated, which differ on their milling process: one was produced in a ball mill and the other in a knife mill. The average particle diameters of the resulting SBA were 2.99 µm and 20.47 µm, respectively. Each of these mills was evaluated in binary mixtures of SBA and RC, varying the SBA contents from 50% to 90%. Pure SBA and RC were also evaluated. Six different sintering temperatures were studied (1000 °C, 1050 °C, 1100 °C, 1150 °C, 1175 °C and 1200 °C). The precursor materials were characterized in terms of chemical, mineralogical composition, particle size distribution, specific surface area and thermal analysis, to be subsequently pelletized and sintered. After sintering, the bloating index, particle density, loose bulk density, water absorption, voids index, crushing strength and morphology analysis by scanning electron microscopy (SEM) were assessed. The results demonstrate that it is possible to obtain lightweight aggregates based on binary mixtures of SBA and RC in a wide range of particle densities, ranging from 1.03 to 1.67 g/cm3 and loose bulk densities ranging from 0.55 to 0.9 g/cm3. Bloating was observed only when smaller diameter SBA was used.
Evaluation of sugarcane bagasse ash for lightweight aggregates production
Graphical abstract Display Omitted
Highlights LWA were produced from sugarcane bagasse ash (SBA) and red clay. SBA were submitted to two different milling processes (knife and ball). Mixes with ratio SiO2/ƩOF below 1.0 was less susceptible to bloating. The residue fineness (ball mill) corroborated for a better performance of LWAs. It was possible to formulate LWAs with a high content (90%) of waste (SBA).
Abstract The present paper aims at researching the development of lightweight aggregates from sugarcane bagasse ash (SBA) sintering and binary mixtures of SBA and red clay (RC). Two different SBA were evaluated, which differ on their milling process: one was produced in a ball mill and the other in a knife mill. The average particle diameters of the resulting SBA were 2.99 µm and 20.47 µm, respectively. Each of these mills was evaluated in binary mixtures of SBA and RC, varying the SBA contents from 50% to 90%. Pure SBA and RC were also evaluated. Six different sintering temperatures were studied (1000 °C, 1050 °C, 1100 °C, 1150 °C, 1175 °C and 1200 °C). The precursor materials were characterized in terms of chemical, mineralogical composition, particle size distribution, specific surface area and thermal analysis, to be subsequently pelletized and sintered. After sintering, the bloating index, particle density, loose bulk density, water absorption, voids index, crushing strength and morphology analysis by scanning electron microscopy (SEM) were assessed. The results demonstrate that it is possible to obtain lightweight aggregates based on binary mixtures of SBA and RC in a wide range of particle densities, ranging from 1.03 to 1.67 g/cm3 and loose bulk densities ranging from 0.55 to 0.9 g/cm3. Bloating was observed only when smaller diameter SBA was used.
Evaluation of sugarcane bagasse ash for lightweight aggregates production
Souza, Nathaly Santana Leal de (author) / Anjos, Marcos Alyssandro Soares dos (author) / Sá, Maria das Vitórias Vieira Almeida de (author) / Farias, Evilane Cássia de (author) / Souza, Maelson Mendonça de (author) / Branco, Fernando G. (author) / Pereira, Andreia (author)
2020-11-02
Article (Journal)
Electronic Resource
English
PROPERTIES OF SUGARCANE BAGASSE AND BAGASSE ASH
| British Library Conference Proceedings | 1999
Use of Sugarcane Bagasse for Particleboard Production
| British Library Online Contents | 2015
Copper (II) Adsorption onto Sugarcane Bagasse
| British Library Online Contents | 1996