Reduction of the Capillary Water Absorption of Foamed Concrete by Using the Porous Aggregate
IOP Conference Series: Materials Science and Engineering 2017
Eva Namsone, Genādijs Šahmenko, Elvija Namsone, Aleksandrs Korjakins

The article reports on the researchofreductionof the capillary water absorption of foamed concrete (FC) by using the porous aggregate such as the granules of expanded glass (EG) and the cenospheres (CS).The EG granular aggregate is produced by using recycled glass and blowing agents, melted down in high temperature. The unique structure of the EG granules is obtained where the air is kept closed inside the pellet. The use of the porous aggregate in the preparation process of the FC samples providesan opportunityto improve some physical and mechanical properties of the FC, classifying it as a product ofhigh-performance. In this research the FC samples were produced by adding the EG granules and the CS. The capillary water absorption of hardened samples has been verified.The pore size distribution has beendetermined by microscope. It is a very important characteristic, specifically in the cold climate territories– where temperature often falls below zero degrees. It is necessary to prevent forming of the micro sized pores in the final structure of the materialas it reduces its water absorption capacity.In addition, at a below zerotemperature water inside these micro sized pores can increasethem by expanding thestress on their walls during the freezing process.Research of the capillary water absorption kinetics can be practical for prevision ofthe FC durability.


Atslēgas vārdi
porous aggregate, foamed concrete, water absorption, porosity
DOI
10.1088/1757-899X/251/1/012030
Hipersaite
http://iopscience.iop.org/article/10.1088/1757-899X/251/1/012030

Namsone, E., Šahmenko, G., Namsone, E., Korjakins, A. Reduction of the Capillary Water Absorption of Foamed Concrete by Using the Porous Aggregate. No: IOP Conference Series: Materials Science and Engineering, Latvija, Rīga, 27.-29. septembris, 2017. UK: IOP Publishing, 2017, 1.-9.lpp. ISSN 1757-8981. e-ISSN 1757-899X. Pieejams: doi:10.1088/1757-899X/251/1/012030

Publikācijas valoda
English (en)
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