What is required for masonry work concerning the cores in blocks?

In masonry construction, maintaining the partitions between the cores in hollow blocks is essential for structural integrity and performance. The cores of hollow blocks are designed to provide strength, while also allowing for the inclusion of reinforcement, insulation, or other materials. When partitions between these cores are intact, they help distribute loads effectively across the block, improving the overall structural performance.

Additionally, maintaining these partitions helps to prevent the unwanted flow of concrete or grout during filling operations, which could compromise the intended purpose of all cores involved. Compromised partitions can lead to weak points in the masonry wall, which could affect the overall stability of the structure.

While other options may seem relevant in some contexts, they do not address the critical necessity of preserving the integrity of the partitions in hollow block cores, which is fundamental for effective masonry practices.