Lessons Learned from Thin-Stone Cladding Lincoln NE
Lessons Learned from Thin-Stone Cladding
Source: MASONRY CONSTRUCTION MAGAZINE
Publication date: February 1, 2000
By Edward A. GernsAbstract:
Used as a building material for thousands of years, stone's beauty and sense of permanence make it ideal for significant buildings. Within the past 150 years, however, advances in technology and the introduction of new building systems have changed how stone is used. In recent years, thin-stone cladding systems have become increasingly popular.
The unique physical and aesthetic characteristics of stone result from several conditions:
- Natural planes of weakness, such as cleavage planes, bedding planes, and riffs, occur as specific stones form.
- The physical properties of an individual stone will also vary depending on whether it is tested wet or dry.
- Stone is not an isotropic material; therefore, its strength will vary depending on the orientation of the load.
- Stone is a heterogeneous material, which also contributes to variability.
Properties of stone that affect its performance are compressive, flexural, shear, and tensile strength; density; abrasion resistance; coefficient of thermal expansion; and modulus of elasticity. Other, frequently overlooked properties can contribute to the premature failure of a stone cladding system: hysteresis (permanent volume change), freeze-thaw weathering, chemical weathering, thermal weathering, permeability, and the effects of stone finishes.
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