Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Use of refractory concrete in heat treatment furnaces
Research Inst for Concretes and Reinforced Concrete and Magnitogorsk Metallurgical Combine has tested refractory concretes based on portland cement and finely milled chromite and forsterite aggregates; compressive strength of specimens was 244 kg/sq cm at 20 C, 340 at 100 C, 275 at 500 C, 114 at 800 C, 108 at 1000 C, and 83 at 1300 C; after being heated to 1300 C for 2 hr, expansion was 0.2%, after 1400 C shrinkage was 0.4%; temperature at which 4% sag occurred under load of 2 kg/sq cm was 1460 C, and final failure temperature 1470 C; spalling resistance (800 C-water) was eight to nine heat cycles; concrete has high slag resistance. (38787)
Use of refractory concrete in heat treatment furnaces
Research Inst for Concretes and Reinforced Concrete and Magnitogorsk Metallurgical Combine has tested refractory concretes based on portland cement and finely milled chromite and forsterite aggregates; compressive strength of specimens was 244 kg/sq cm at 20 C, 340 at 100 C, 275 at 500 C, 114 at 800 C, 108 at 1000 C, and 83 at 1300 C; after being heated to 1300 C for 2 hr, expansion was 0.2%, after 1400 C shrinkage was 0.4%; temperature at which 4% sag occurred under load of 2 kg/sq cm was 1460 C, and final failure temperature 1470 C; spalling resistance (800 C-water) was eight to nine heat cycles; concrete has high slag resistance. (38787)
Use of refractory concrete in heat treatment furnaces
Refractories
Zimin, P.P. (Autor:in) / Plotnikov, P.I. (Autor:in) / Shakhlin, V.I. (Autor:in) / Salmanov, G.D. (Autor:in)
1968
3 pages
Aufsatz (Zeitschrift)
Englisch
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