Open AccessStudy of service properties of alkali-activated cement using wastewater treatment residues
Author(s) -
Oleksandr Kovalchuk,
Genadiy Kochetov,
Dmitry Samchenkо
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/708/1/012087
Subject(s) - cement , alkali metal , wastewater , leaching (pedology) , compressive strength , heavy metals , matrix (chemical analysis) , materials science , waste management , chemistry , nuclear chemistry , metallurgy , composite material , environmental science , environmental chemistry , organic chemistry , engineering , soil science , soil water
The paper discloses the results of the study of treatment of galvanic wastewater residues by incorporation into the alkali-activated cement matrix. Leaching of heavy metals from the artificial stone was studied. It is set that immobilization level of the matrix is 99.96 % by mass of heavy metal (97.83 using traditional methods). Application of alkali-activated cement makes it possible to obtain compressive strength of compound up to 40 MPa even when 30 % of wastewater residues are involved. Immobilization level of alkali-activated cement matrix met requirements of the standard.