Los Angeles abrasion test evaluates the aggregates' soundness and durability. Select one: O True O False
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Q: ompute the Fineness Modulus for fine aggregate.
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- Aggregates resistance to wear can be determined through Select one: O A. Aggregates soundness test. O B. Aggregates Impact value test. O C. Aggregates crushing strength test. O D. Los Angeles abrasion testI need the answer as soon as possibleIn performing the ASTM C128, If the surface moisture is still present, the fine aggregate will retain the molded shape. (A) True (B) False
- ASTM C127 is the Standard Test Method for Density, Relative Density (Specific Gravity), and Absorption of Fine Aggregate (A) True B False(a) In general, which provides better fire performance, carbonate or silicate aggregates? Why? (b) Why does fire design incorporate a load reduction factor (Dfire) = 1.0? (c) Two identical beams (Beam 1 is simply supported, and Beam 2 is fully restrained) are heated under similar conditions. What does the mechanical strain equal to in each of these beams? (d) A design office located in Clemson, SC (with a branch in San Francisco, CA) envisions designing a new composite member made of steel and timber. This to-be designed member is expected to be used in wildfire-prone regions primarily for single family homes. Comment on how you would design such a member to achieve superior fire performance. (e) Plot and discuss the expected degradation faces in three bending elements (say, beams) to be made from concrete, steel and timber?This refers to a change from liquid state to solid state of cement paste.
- Well graded aggregate means sizes within the entire range are in approximately equal amounts, although there will be a very small amount of the largest and smallest particles. Select one: O True O FalseThe percentage of aggregates of fine-ness modulus 2.7 is to be mixed with coarse aggregate of fineness modulus 7 to have a FM of 5.5 would be combinedIf I have a coarse aggregate that is low fine modulus range of coarse aggregate, what will happen to the mix and what will happen to the structure as time passes?