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Waste Management & Research, Vol. 21, No. 1, 29-37 (2003)

The use of by-products from metallurgical and mineral industries as filler in cement-based materials

Helena Mooseberg

Swedish Cement and Concrete Research Institute, 100 44 Stockholm, Sweden.

Bjorn Lagerblad

Swedish Cement and Concrete Research Institute, 100 44 Stockholm, Sweden.

Eric Forssberg

Luleå University of Technology, Division of Mineral Processing, 971 87 Luleå, Sweden.

This investigation has been made in order to make it possible to increase the use of by-products in cement-based materials. Use of by-products requires a screening procedure that will reliably determine their impact on concrete. A test procedure was developed. The most important properties were considered to be strength development, shrinkage, expansion and workability. The methods used were calorimetry, flow table tests, F-shape measurements, measurements of compressive and flexural strength and shrinkage/expansion measurements. Scanning electron microscopy was used to verify some results. Twelve byproducts were collected from Swedish metallurgical and mineral industries and classified according to the test procedure. The investigation showed that the test procedure clearly screened out the materials that can be used in the production of concrete from the unsuitable ones.

Key Words: Concrete • by-products • filler • cement properties • heat of hydration • compressive • strength • workability • expansion • shrinkage • wmr 468-4.


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