The European standard "EN 13653 Flexible sheets for waterproofing - Waterproofing of concrete bridge decks and other concrete surfaces through which vehicles can pass - Determination of shear strength" is one of a set of standards applicable to flexible sheets for the waterproofing of concrete bridge decks and other concrete surfaces open to vehicle traffic. is one. This standard describes a test method for evaluating the shear strength properties of the waterproofing board system applied to the concrete surface and asphalt layer.
The strength of a material is generally the value of yielding, breaking or excessive deformation occurring in a load-bearing element. Shear strength is a material property that describes the resistance of a material to shear load before the component is damaged during shearing. Shear action or shear failure, defined by shear strength, occurs parallel to the direction of the force acting on a plane.
In the construction, automotive, aerospace and other engineering industries, knowing the shear strength of materials is vital to the design of mechanical and structural devices and the selection of materials to be used for an application. This is also an important point in sizing components or parts.
Shear strength and shear stress are often used interchangeably, but there is a technical distinction between these two concepts. Shear stress is relative and varies depending on the amount of shear load applied to the material per unit area. Shear strength is a fixed and definite value in the general nature of the material.
Shear strength is an important consideration in the design of many parts, including fasteners such as pins, bolts and screws. To determine the maximum shear stress, shear tests are generally performed in two ways:
Many materials are tested to know their shear strength, but they fall into three groups: rigid substrates, layered composites and adhesives. Shear strength testing helps classify an adhesive based on its shear strength when pulled from the material to which it adheres. Metals, wood and plastics fall into the category of hard materials. The shear strength of layered composites is determined by testing the boundaries of their laminates, layers, and fibers.
The strength of a material or component is measured by its ability to withstand certain forces before breaking. When evaluating the performance of fasteners in flexible sheets used in the waterproofing of concrete bridge decks and other concrete surfaces that vehicles can pass, two types of strength are measured: shear and tensile strength.
Shear strength measures the ability of a fastener to withstand a load at right angles to the axis of the fastening joint, that is, along the shaft of the fastener. Tensile strength measures the ability of a fastener to withstand a force along its axis, that is, along the shaft of the fastener.
Briefly, the shear strength of concrete is defined as the ability of the material's internal structure to resist forces that cause it to slide on its own. This can be measured horizontally or vertically by seeing whether a force causes the layers of the object to shift in a horizontal or vertical direction.
Among the numerous testing, measurement, analysis and evaluation studies carried out for businesses in various sectors, our organization, with its trained and expert staff and advanced technological equipment, has established "EN 13653 Flexible sheets for waterproofing - Waterproofing of concrete bridge decks and other concrete surfaces that vehicles can pass through - It also provides testing services defined in the "Determination of shear strength" standard.
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