(a) For each of these three sources comment of the likely angularity of particles, and whether the surface texture is likely to be rough or smooth.
(a) For each of these three sources comment of the likely angularity of particles, and whether the surface texture is likely to be rough or smooth.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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![Q1.
Primary aggregate may be obtained from two types of inland source, or be
marine dredged.
(a) For each of these three sources comment of the likely angularity of
particles, and whether the surface texture is likely to be rough or smooth.
[6 marks]
(b)
Briefly discuss how angularity of the aggregate, will affect the workability
of fresh concrete and the strength of hardened concrete.
[4 marks]
(c)
For a given mass of cement per m' of mixed concrete, briefly explain the
effects that increasing the water/ cement ratio will have on the fresh and
hardened concrete.
Why is there a practical limit on (minimum) CO2 emissions associated
with cement powder manufacture irrespective of how the energy used in
manufacture is derived?
[6 marks]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F845bd975-de78-4153-99d3-7d244dfc39d9%2Fda8c7b35-1f41-4273-95ce-73fe4bfdbc78%2F335icu_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Q1.
Primary aggregate may be obtained from two types of inland source, or be
marine dredged.
(a) For each of these three sources comment of the likely angularity of
particles, and whether the surface texture is likely to be rough or smooth.
[6 marks]
(b)
Briefly discuss how angularity of the aggregate, will affect the workability
of fresh concrete and the strength of hardened concrete.
[4 marks]
(c)
For a given mass of cement per m' of mixed concrete, briefly explain the
effects that increasing the water/ cement ratio will have on the fresh and
hardened concrete.
Why is there a practical limit on (minimum) CO2 emissions associated
with cement powder manufacture irrespective of how the energy used in
manufacture is derived?
[6 marks]
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