Response tests on the effects of particle size of waste glass sand and glass powder on the mechanical and durability performance of concrete.

8 (a), for a constant particle size, an increase in the glass sand replacement rate leads to a decreasing trend in the compressive strength of the cubic specimens.

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For glass powder with a particle size range of 60–70 μm, as the replacement rate increases from 10 to 25%, the increase in pulse velocity also shows an increasing trend, rising from 5.14 to 7.75%.

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Specifically, When the particle sizes of glass sand are 0.6 mm and 1.18 mm, within the replacement range of 10–25%, pulse velocity is improved compared to the control group, showing an overall trend of initially increasing and then decreasing.

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