Non-regulated applications outside approvals
The conditions of use of fastening systems are generally regulated in approvals – so-called European Technical Assessments (ETA). In addition to the description of the construction product, these include the characteristic design parameters which form the basis for designing the fastening systems in accordance with, for example, [1]. In building practice, engineers repeatedly face the difficulty of the ETAs not covering the “conditions of use encountered on site”.
This problem also applies to fastening systems in lightweight concrete. Lightweight concrete is a concrete of sometimes...
