Which type of testing can be used to identify weaknesses in masonry?

Load testing is a method used to assess the structural integrity and strength of masonry by applying a predetermined load to the structure and observing how it responds. This testing identifies weaknesses by measuring how much the masonry can bear before failing or showing signs of distress, such as cracking or deformation. By simulating real-world stresses, load testing provides valuable insights into the performance of the masonry under various conditions, allowing engineers and builders to evaluate whether the construction can safely support expected loads or if modifications are necessary.

While water absorption tests can indicate the permeability of masonry and its potential durability, they do not directly measure the structural strength or identify weaknesses under load. Color analysis typically focuses on aesthetic aspects rather than structural integrity, and surface cleaning tests are primarily concerned with maintenance and appearance, lacking relevance to the strength and stability of the masonry.