Which of the following options is used to enhance the alignment and strength of adjoining stones in stone masonry?
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A.
Flush joint
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B.
Key joint
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C.
Recessed joint
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D.
Dowel joint
Correct Answer:
D. Dowel joint
Explanation:
The correct answer is Dowel joint.
Dowel joints are specifically employed in stone masonry to improve the alignment and structural integrity of adjacent stones. This technique involves inserting a small pin or piece of metal, known as a dowel, into corresponding holes drilled into the faces of the stones being joined. This mechanism effectively prevents lateral movement and ensures that the stones remain securely positioned relative to one another, which is particularly useful in structures subjected to displacement forces. Unlike flush or recessed joints, which primarily deal with the surface finish of the mortar, or key joints that focus on moisture control, the dowel joint provides a mechanical connection that directly reinforces the physical bond between the masonry units.
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