ISSN 2594-5327
59th Congresso anual — Vol. 59 , num. 1 (2004)
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Abstract
Different types of ground-cooled ferrous slag (blast furnace, open hearth, electric steel and converter) have manifested unequivocal binding properties during hydration. Physicochemical processes of hydrated slag interaction with different (mainly clayey) types of soils were studied by wide range of traditional and novel methods during up to 6 years of the samples age. Mainly amorphous new formations grow during the hydration and strengthening of ferrous slag with natural soils and with or without activators (additions of 2-3% of Portland cement or lime). Strengthener slag-soil materials have shown good performance indices (one year strength till 14.4 MPa, high water and frost resistance, etc.). These materials have many advantages, evidenced by their high indices of cost effectiveness, technological and ecological efficiency compared to the traditional forms of road construction. Therefor activated slag-soil materials can be used for the construction of road bases, airfields, levee and dam cores, municipal and industrial dumps, building foundations, etc. Almost 300 km of roads have been built with such bases in different regions of Russia, including regions with rigorous climates in northern regions of Russia and Siberia.
Different types of ground-cooled ferrous slag (blast furnace, open hearth, electric steel and converter) have manifested unequivocal binding properties during hydration. Physicochemical processes of hydrated slag interaction with different (mainly clayey) types of soils were studied by wide range of traditional and novel methods during up to 6 years of the samples age. Mainly amorphous new formations grow during the hydration and strengthening of ferrous slag with natural soils and with or without activators (additions of 2-3% of Portland cement or lime). Strengthener slag-soil materials have shown good performance indices (one year strength till 14.4 MPa, high water and frost resistance, etc.). These materials have many advantages, evidenced by their high indices of cost effectiveness, technological and ecological efficiency compared to the traditional forms of road construction. Therefor activated slag-soil materials can be used for the construction of road bases, airfields, levee and dam cores, municipal and industrial dumps, building foundations, etc. Almost 300 km of roads have been built with such bases in different regions of Russia, including regions with rigorous climates in northern regions of Russia and Siberia.
Keywords
ground-cooled ferrous slag, natural soils, chemical interaction, road base, ecological efficiency
ground-cooled ferrous slag, natural soils, chemical interaction, road base, ecological efficiency
How to cite
Myrmin, Vsévolod; Ponte, Haroldo; Alekseev, Pavel.
ROAD BASE CONSTRUCTION MATERIALS FROM NATURAL SOILS, STRENGTHENED BY DIFFERENT GROUND-COOLED FERROUS SLAGS,
p. 2211-2220.
In: 59th Congresso anual,
São Paulo, Brasil,
2004.
ISSN: 2594-5327, DOI 10.5151/2594-5327-3970
