Technology of foam concrete production with ultradispersed quartz waste

16th International Conference of Students and Young Scientists "Prospects of Fundamental Sciences Development"

自然科学（总论）

Kuznetsova, I.N.^1 ; Darulis, M.A.^1 ; Kosach, A.F.^1

Yugra State University, Khanty-Mansiysk

628012, Russia^1

关键词: Cement consumption;    Cement stones;    Foam concretes;    Physical and mechanical properties;    Pore forming;    Total porosity;    Ultrafine;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/597/1/012031/pdf
DOI  :  10.1088/1757-899X/597/1/012031

学科分类：自然科学（综合）

来源: IOP

【 摘 要 】

The article presents a technology for producing foam concrete using activated quartz waste. The waste is an ultrafine filler in the cement stone that builds pore-forming walls and generates a structure with minimal pores (with a diameter down to 50 microns) and walls with similar cross-section. The average density of such foam concrete is 500 kg/m3 and the total porosity equals 69-76%. The specimens demonstrate increased strength and reduced thermal conductivity. The use of the ultrafine filler in foam concrete reduces cement consumption by 10%, increases the density of the cement stone by 4%, augments the strength of the foam concrete by 10% and reduces its thermal conductivity by 8%. The results of the tests approve increased operational, physical and mechanical properties of such foam concrete.