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Issue 5 (1) 2006 pp. 29–38

Andrzej Czerniak, Agata Poszyler-Adamska

ASSESSMENT OF HEAVY METALS IMMOBILISATION IN CEMENT-GROUND COMPOSITES USED FOR CONSTRUCTION OF COUNTRY ROADS

Keywords: road aggregate, cement setting, heavy metals, immobilisation, composites
Abstract: Stabilisation of road foundations with cement is an effective and economical technology of increasing the bearing capacity of ground roads. Cement-ground composites are applied in the construction of public roads as basic foundations for surfaces with high bearing capacities. On forest and country roads a layer of the composite can function as an independent road surface. Cement may be used to bond the subsoil or the aggregates of anthropogenic origin (coal refuse, slag, debris, etc.) contained in the foundations. In this way an improvement in the bearing capacity of the surface is obtained and the harmful chemical compounds present in the stabilised aggregate are immobilised. Monitoring the chemical pollutants leached out of surfaces and road foundations requires that univocal procedures are worked out to obtaine eluates from the samples. The paper presents an original method developed by the authors to assess the degree of heavy metals immobilisation while taking into account the rheological condition of cement-ground road composites. The procedure comprises the preparation of eluates for chemical analyses from monolithic cement-ground samples and samples damaged by mechanical loads. The leaching medium is deionised water with the pH value decreased to 4.
pub/5_1_29.pdf Full text available in in Adobe Acrobat format:
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For citation:

MLA Czerniak, Andrzej, and Agata Poszyler-Adamska. "ASSESSMENT OF HEAVY METALS IMMOBILISATION IN CEMENT-GROUND COMPOSITES USED FOR CONSTRUCTION OF COUNTRY ROADS." Acta Sci.Pol. Form. Cir. 5.1 (2006): 29–38.
APA (2006). . Acta Sci.Pol. Form. Cir. 5 (1), 29–38
ISO 690 CZERNIAK, Andrzej, POSZYLER-ADAMSKA, Agata. ASSESSMENT OF HEAVY METALS IMMOBILISATION IN CEMENT-GROUND COMPOSITES USED FOR CONSTRUCTION OF COUNTRY ROADS. Acta Sci.Pol. Form. Cir., 2006, 5.1: 29–38.
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Streszczenie w języku polskim:
http://www.formatiocircumiectus.actapol.net/tom5/zeszyt1/abstrakt-29.html