A good average value of the crushing strength of aggregates, suitable for concrete, is ______.
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A.
100-300 MPa
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B.
80-100 MPa
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C.
60-80 MPa
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D.
40-60 MPa
Correct Answer:
A. 100-300 MPa
Explanation:
The correct answer is 100-300 MPa.
Aggregates used in concrete production must possess high compressive strength to ensure the structural integrity of the resulting mixture. For most high-quality construction applications, the crushing strength of these stones typically ranges between 100 and 300 MPa. This range indicates that the material is sufficiently durable to withstand heavy loads and mechanical stress without fracturing. Using aggregates within this strength bracket helps maintain the longevity and safety of concrete structures, such as bridges and high-rise buildings.
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