Civil Engineering Design, Volume 5, Issue 1-2, Page 2-2, April 2023 ..read more

Abstract In this study, the influence of different water saturation achieved by different storage conditions on the static and dynamic compressive strength of three different concretes were investigated. The specimens were first dried then water-saturated and tested both under static and impact loading. The impact tests were carried out in a split Hopkinson bar. Depending on the concrete strength class, increases in the compressive strength of 200 % to 300 % at strain rates in the range of 90 to 160 1/s were observed. Compared to storage under ambient conditions, the compressive strength decre ..read more

Abstract Polymer-modified bentonite has reached significant attention in recent years, as polymers have been found to increase the resistance of clay barriers to detrimental environmental conditions. Studies on polymer modification of clays for barriers, in most cases, address a specific bentonite with a specific means of modification based on a specific polymer product. The term polymer, however, generally describes a broad category of macromolecules able to create a wide range of possible properties of the modified clay. This article reviews the basics of polymer modification of clays for us ..read more

Abstract Glass fiber reinforced concrete (GFRC) comprises of hydration products of cement or cement plus sand, and glass fibers which take part in the concrete as reinforcement characteristics. GFRC has been used for over 50 years in several construction elements, such as facade panels, decorative no recoverable formwork, and other products. However, various anchor elements and pad hooks are needed to attach large or small parts made of GFRC panels to the main structure of the buildings. The corrosion rate of embedded metal fasteners over time is related to the water impermeability properties ..read more

Civil Engineering Design, Volume 4, Issue 5-6, Page 141-141, December 2022 ..read more

Civil Engineering Design, Volume 4, Issue 5-6, Page 142-142, December 2022 ..read more

Abstract For an assessment of the necessity, the efficiency and the prioritization of repair and upgrading measures for bridges, object-specific knowledge of structural stresses and structural conditions is indispensable. From the identification of traffic occupancy (quantity and quality) and the analysis of the structural reactions, statements on the current load-bearing capacity of an existing bridge will derived. A necessary data basis is the traffic data of the real traffic determined for the specific bridge ..read more

Abstract The objective of the paper is to analyse the shrinkage and expansion strain development in thin slabs made of expansive concrete and reinforced with carbon textile reinforcement. The symmetrical textile reinforcement grid provided a biaxial restraint for the concrete shrinkage and expansion. Strains of the slabs were measured with distributed fibre optic sensors (DFOS) in both directions so that a 2D visualization of their distribution can be presented and analysed. Parallel, standard restrained expansion tests (RET) were conducted to assess the expansive concrete mixture and large-sc ..read more

Civil Engineering Design, Volume 4, Issue 4, Page 97-97, August 2022 ..read more

Civil Engineering Design, Volume 4, Issue 4, Page 98-98, August 2022 ..read more