Experimental investigation on salt frost scaling of textile‐reinforced concrete

Abstract

With the aim of reducing life cycle costs and dead weight, there are various concepts for replacing bridge pavements and sealants with high‐performance concrete. The corrosion resistance of textile reinforcements allows the realization of thin reinforcement layers that fulfill this objective. However, the textile‐reinforced concrete used as a road surface must meet the particular requirements relating to frost resistance and, specifically, scaling. An investigation on an existing structure indicated the influence of textile reinforcements on frost resistance. Therefore, the present investigations focus on the frost scaling of different combinations of a carbon reinforcement and fine‐grained concrete. For this purpose, a multistage research design is used. First, the influence of the reinforcement and the concrete mix on the capillary porosity is investigated. The capillary porosity of concrete is directly related to its resistance to freeze–thaw scaling. This resistance is examined using the slab‐test method. Finally, the influence of the frost exposure on the pull‐off strength, which is crucial for the strengthening of structures, is determined.

An Overview of Smart Materials and Technologies for Concrete Construction in Cold Weather

“…These cracks can weaken the structure and provide pathways for further water ingress, leading to additional frost damage and other forms of deterioration. Scaling [104] is the flaking or peeling of the concrete surface; it occurs when the surface layer is subjected to frost damage. Scaling can result in an unsightly appearance and increased surface roughness, which can be particularly problematic in architectural concrete applications.…”

The Synthesis and Performance of a Novel Lignin Modified Salt-Resistant Branched High-Performance Water Reducer

“…This study is still in its early stages, and there is no relevant research yet. The available salt-resistant water reducer literature is mostly about the resistance of erosion of concrete by sulfate and chloride salts after being added [ 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ], rather than to improve its fluidity during construction.…”

The Synthesis and Performance of a Novel Lignin Modified Salt Resistance Branched High-Performance Water Reducer

“…This study is still in its early stages, and there is no relevant research yet. The available saltresistant water reducer literatures are mostly about resistance of erosion of concrete by sulfate and chloride salts after being added [10][11][12][13], rather than to improve its fluidity during construction. Starting from the multi-hydroxyl lignin, a salt resistance branched high-performance water reducer (BHPWR) was prepared by introducing branching structures.…”