Compressive Strength of Ultra High Strength Concrete
Keywords:
Strength Concrete, Split Cylinder, CompressiveAbstract
The strength of ultra-high strength concrete (UHSC) with axial compressive strength more than 100 MPa is presented in this paper. There are mixes have been cast in this project. Based on the slump test, the compression tests with twelve cubical specimens (150 mm) at 3 days, 7 days, 28 days and 90 days, split cylinder tests with six cylinder specimens (100 mm x 200 mm) at 28 days and 90 days; and porosity test with two slabs (200 mm x 300 mm) for twelve coring specimens at 3 days, 28 days and 90 days, the compressive strength of UHSC with ratio of cement on fine and coarse aggregates are to 1:1.5:2.5, 2.5%, 3% and 4% of superplasticiser, 10% of silica fume and 25% and 27% of water cement ratio are to be investigated. The observation of strength on each specimen with various percentage of superplasticiser will be made up to 90 days of strength. Graph of stresses vs. days will be plotted for further analysis as well as the calculation of modulus of elasticity (E).
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