Q. What is the percentage of the accelerator by weight in UHPC?

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Q. It is ___________ strength and ___________ permeability.

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Q. High Performance concrete works out to be economical.

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Q. HPC is not used in high span bridges.

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Q. Concrete having 28- days compressive strength in the range of 60 to 100 MPa.

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Q. Concrete having 28-days compressive strength in the range of 100 to 150 MPa.

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Q. High-Performance Concrete is ____________ as compared to Normal Strength Concrete.

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Q. The choice of cement for high-strength concrete should not be based only on mortar-cube tests but it should also include tests of compressive strengths of concrete at ___________ days.

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Q. For high-strength concrete, a cement should produce a minimum 7-days mortar-cube strength of approximately ___ MPa.

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Q. ____________ mm nominal maximum size aggregates gives optimum strength.

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Q. Due to low w/c ratio _____________

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Q. According to figure, what is the approximate value of strength of 50mm cube in MPa for gel-space ratio .6?

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Q. Referring to the graph below, what is the approximate value of strength of 50mm cube in MPa for gel-space ratio .8?

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