CRACKS special subjects Graphic illustration of cracks TYPES OF CRACKS ON CONCRETE BUILDINGS Cracks in reinforced concrete columns due to corrosion of the steel reinforcement (cracks parallel to the reinforcing bars). Cracks in reinforced concrete columns from sulfite pollutants attack. 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.4 1.6 1.8 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Cracks in reinforced concrete columns from alkali reaction in the mixture of concrete. Cracks in reinforced concrete columns due to concrete shrinkage. Cracks in reinforced concrete columns due to weight (load) on the slab. è Cracks in primary structural elements (load-bearing elements) Cracks in the primary structural elements are those that result from incorrect design, poor construction, or overload and are capable of endangering the building (affecting its statics) and its occupants. è Cracks in secondary structure elements Cracks in the secondary structure elements are those that may develop from pressures within the structure itself, in the construction materials of the building. Usually, cracks of this type do not jeopardize the safety of the building but still affect the image, create a sense of bad workmanship, and convey a sense of insecurity among its occupants. CRACK THICKNESS MEASUREMENT RULER (in mm) Cut here
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