Stainless Steel Slag as Aggregate in Cement Bound Mixtures for Road Construction, Two Case Studies in Belgium

Title: Stainless Steel Slag as Aggregate in Cement Bound Mixtures for Road Construction, Two Case Studies in Belgium
Author(s): Van den Bergh
Paper category : conference
Book title: International RILEM Conference on the Use of Recycled Materials in Building and Structures
Editor(s): E. Vázquez, Ch. F. Hendriks and G.M.T. Janssen
Print-ISBN: 2-912143-52-7
e-ISBN: 2912143756
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 1095 - 1104
Total Pages: 10
Language: English

Abstract: This article describes 2 Belgian case studies with the use of stainless steel slag in cement
bound mixtures for road construction: in the first case as aggregate in a roller compacted concrete
for a rural road pavement and in the second case the slag aggregates are in situ stabilised with
cement to form the foundation layer under a large industrial storage area.
Slag from stainless steel production is a stony material with good mechanical properties, that
can be used as aggregate. Laboratory studies have demonstrated the capability of the slag of
being stabilized with cement to produce a lean concrete mix.The slag is available, after breaking and sieving, in two sizes: 0/7 mm and 7/20 mm. Bothsizes are used for the mixture, together with an addition of sand. The concrete mixture is
fabricated in a conventional concrete plant, laid down, graded and compacted with both steeldrum and pneumatic tyre rollers.
The in situ stabilized mixture is produced with conventional machinery for soil stabilizationand laid in three consecutive layers each 200 mm thick.The results of both projects are satisfactory and demonstrate the possibilities for successful recycling of stainless steel slag as an aggregate in road construction.

Online publication: 2004-09-29
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143756.120