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Self compacting concrete incorporating atomized steel slag aggregate
Atomized steel slag aggregate is produced by new technology in steel making process. It exhibits an improved resistance to chemical and physical deterioration and hence is maintained at its original stable state. The shape of atomized steel slag aggregate is sphere, and maximum size is 5mm. From the aggregate tests, atomized steel slag aggregate is suitable for concrete. Unfortunately, atomized steel slag aggregate has high specific gravity in compare with sand. Therefore, self compacting concrete incorporating atomized steel slag aggregate must be different in fresh and hardened concrete to conventional self compacting concrete. First the fresh self compacting concrete incorporating atomized steel slag aggregate is compared with conventional self compacting concrete. The slump flow, slump flow time at 500mm, V funnel time and U box test are conducted. Then the strength of self compacting concrete incorporating atomized steel slag aggregate is compared with the conventional self compacting concrete. The self compacting concrete with and without atomized steel slag aggregate are all much the same in the fresh and hardened properties. The dosage of superplasticizer for self compacting concrete incorporating atomized steel slag aggregate is less than the dosage for conventional self compacting concrete to obtain the target slump flow. Owing to the spherical shape, self compacting concrete incorporating atomized steel slag aggregate has a good workability and filling ability. The compressive strength of self compacting concrete incorporating atomized steel slag aggregate is more or less higher than the conventional self compacting concrete.
Self compacting concrete incorporating atomized steel slag aggregate
Atomized steel slag aggregate is produced by new technology in steel making process. It exhibits an improved resistance to chemical and physical deterioration and hence is maintained at its original stable state. The shape of atomized steel slag aggregate is sphere, and maximum size is 5mm. From the aggregate tests, atomized steel slag aggregate is suitable for concrete. Unfortunately, atomized steel slag aggregate has high specific gravity in compare with sand. Therefore, self compacting concrete incorporating atomized steel slag aggregate must be different in fresh and hardened concrete to conventional self compacting concrete. First the fresh self compacting concrete incorporating atomized steel slag aggregate is compared with conventional self compacting concrete. The slump flow, slump flow time at 500mm, V funnel time and U box test are conducted. Then the strength of self compacting concrete incorporating atomized steel slag aggregate is compared with the conventional self compacting concrete. The self compacting concrete with and without atomized steel slag aggregate are all much the same in the fresh and hardened properties. The dosage of superplasticizer for self compacting concrete incorporating atomized steel slag aggregate is less than the dosage for conventional self compacting concrete to obtain the target slump flow. Owing to the spherical shape, self compacting concrete incorporating atomized steel slag aggregate has a good workability and filling ability. The compressive strength of self compacting concrete incorporating atomized steel slag aggregate is more or less higher than the conventional self compacting concrete.
Self compacting concrete incorporating atomized steel slag aggregate
Yoo, Jung-Hoon (author) / Choi, Jae-Jin (author) / Choi, Doo-Sun (author)
2005
8 Seiten, 3 Bilder, 5 Tabellen, 8 Quellen
Conference paper
English
Self compacting concrete incorporating atomized steel slag aggregate
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