Acoustic emission examination of 3D printed ultra-high performance concrete with and without coarse aggregate under fresh and hardened states
Year: 2025
Type: article
Abstract: In this study, plain and fibered 3D printable ultra-high performance concrete mixes with and without coarse aggregate are characterized in the fresh and hardened state using acoustic emission testing. In the fresh state, the flow table, slump value, and open time tests are conducted, and acoustic emission parameters are used to determine the transition of the concrete from a printable phase to a non-printable phase. In the hardened state, the influence of rise time to amplitude ratio, and average frequency in the X, Y, and Z directions is analysed to characterize AE responses in compression, split, flexure, and fracture. The fracture behavior is evaluated using specimens with notch-to-depth ratios of 0.05, 0.2, and 0.5, where fracture energy and AE energy are interlinked to understand failure mechanisms. From the test results, it was found that acoustic emission tests characterize the anisotropic behavior in 3D printed specimens and determine the printability states.
Source: Journal of Building Engineering
Authors: Vaibhav Vinod Ingle, Prabhat Ranjan Prem
Institution: Structural Engineering Research Centre
Language: English
Subfield: Building and Construction
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,940
OpenAlex ID: W6884309076