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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Wall Panels From Air-Entrained Ash Slag Concrete
Author(s): S. I. Pavlenko
Publication: Special Publication
Appears on pages(s): 309-324
Keywords: Admixtures; air-entrainment; blending; compressive strength; concretes;
Abstract:The department of civil enginering of the Siberian State Academy for Mining and Metallurgy (SSAMM) together with Tom-Usinsk Precast Works have developed compositions and technology for producing a lightweight concrete based on ash and slag from Tom-Usinsk power plant. The concrete can be used for external wall panels as a replacement for daydite concrete. The ash slag blend from hydrodumps of the power plant contains 33% ash, 52% slag sand with a particle size of 0.14 to 5 mm and 15% slag with a particle size of 5 to 10 mm. The blend meets the requirements of Russia Standard 25592-91 for use in concretes as an aggregate. Compressive strength of the concrete ranged from 5 to 10 MPa depending on the degree of air-entrainment and the function of panels. Average density of the concrete mixture was in the range of 1070 to 1150 kg/m3 before placing and 1100 to 1200 kg/m3 after placing, compacting and heat treatment, the coefficient of heat conductivity of the light-weight concrete was in the range of 180 to 250 W/m oC depending on average density and strength. The thickness of wall panels produced from this concrete could be reduced to 400 mm with out any warm coating. The concrete developed has-been patented and tested at the Tom-Usinsk reinforced concrete works. The cost of 1 m3 of external wall panels produced from the concrete is 30% lower than that of panels made from claydite concrete.
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