Porous materials based on foaming solutions obtained from industrial waste

International Conference on Mechanical Engineering, Automation and Control Systems 2017

机械制造;无线电电子学;计算机科学

Starostina, I.V.^1 ; Antipova, A.N.^1 ; Ovcharova, I.V.^1 ; Starostina, Yu.L.^1

Belgorod State Technological University Named after V.G. Shoukhov, 46 Kostyukova St., Belgorod

308012, Russia^1

关键词: Alkaline hydrolysis;    Aspergillus niger fungus;    Building interiors;    Cement production;    Cement-based foams;    Operating temperature;    Protein foaming;    Thermal insulation materials;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/327/3/032052/pdf
DOI  :  10.1088/1757-899X/327/3/032052

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

This study analyzes foam concrete production efficiency. Research has shown the possibility of using a newly-designed protein-based foaming agent to produce porous materials using gypsum and cement binders. The protein foaming agent is obtained by alkaline hydrolysis of a raw mixture consisting of industrial waste in an electromagnetic field. The mixture consists of spent biomass of the Aspergillus niger fungus and dust from burning furnaces used in cement production. Varying the content of the foaming agent allows obtaining gypsum binder-based foam concretes with the density of 200-500 kg/m3and compressive strength of 0.1-1.0 MPa, which can be used for thermal and sound insulation of building interiors. Cement binders were used to obtain structural and thermal insulation materials with the density of 300-950 kg/m3and compressive strength of 0.9-9.0 MPa. The maximum operating temperature of cement-based foam concretes is 500°C because it provides the shrinkage of less than 2%.