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Fire Tests of Steel Columns Protected with Siliceous Aggregate Concrete
Results of fire-endurance tests of four 6-in. steel H-columns protected with concrete made with highly siliceous aggregates are presented. The concrete was of 2-in. thickness around the column shaft and filled the reentrant spaces. The aggregates investigated were river gravel and crushed quartz. The columns were subjected to load throughout the tests. The loads on three columns of magnitude as computed by a standard formula for allowable load were constant. One column sustained a double load throughout the earlier part of the test. The fire-endurance limits ranged from 2 hr 50 min for a column with crushed quartz aggregate concrete to 3 hr 34 min for one with gravel aggregate concrete.
Fire Tests of Steel Columns Protected with Siliceous Aggregate Concrete
Results of fire-endurance tests of four 6-in. steel H-columns protected with concrete made with highly siliceous aggregates are presented. The concrete was of 2-in. thickness around the column shaft and filled the reentrant spaces. The aggregates investigated were river gravel and crushed quartz. The columns were subjected to load throughout the tests. The loads on three columns of magnitude as computed by a standard formula for allowable load were constant. One column sustained a double load throughout the earlier part of the test. The fire-endurance limits ranged from 2 hr 50 min for a column with crushed quartz aggregate concrete to 3 hr 34 min for one with gravel aggregate concrete.
Fire Tests of Steel Columns Protected with Siliceous Aggregate Concrete
N. D. Mitchell (author)
1951
17 pages
Report
No indication
English
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