Answer:
The maximum size of coarse aggregate used in concrete is typically determined by the smallest dimension of the structural element into which the concrete is being placed. This is to ensure that the aggregate can be properly distributed and compacted within the formwork.
For a 9-inch thick concrete wall, the maximum size of coarse aggregate would typically be limited to about one-third or one-half of the thickness of the wall. This is a general guideline to ensure that the aggregate can be evenly distributed and properly compacted within the formwork.
In this case, for a 9-inch thick wall, a common maximum aggregate size might be in the range of 1.5 to 3 inches (38 to 76 mm).
However, it's important to note that specific project requirements, design specifications, and local building codes may dictate the allowable maximum aggregate size. Always consult with a structural engineer or refer to the relevant building codes and standards for the specific project you're working on.
Step-by-step explanation: