From analytical methods to numerical simulations: A process engineering toolbox for 3D concrete printing

A Perrot, A Pierre, VN Nerella, RJM Wolfs… - Cement and Concrete …, 2021 - Elsevier
This paper compiles selected predictive analytical and numerical tools which can be used to
model and understand the mechanisms of importance at different stages during and …

GPU-based discrete element model of realistic non-convex aggregates: Mesoscopic insights into ITZ volume fraction and diffusivity of concrete

W Xu, M Jia, W Guo, W Wang, B Zhang, Z Liu… - Cement and Concrete …, 2023 - Elsevier
Aggregates with realistic non-convex morphologies and their surrounding interfacial
transition zones (ITZs) significantly affect the diffusivity of concrete. Herein, we initially …

Effects of extrusion parameters on properties of 3D printing concrete with coarse aggregates

G Ji, J Xiao, P Zhi, YC Wu, N Han - Construction and Building Materials, 2022 - Elsevier
Different extrusion systems have been widely used in previous studies, researches on the
influence of nozzle directions and scrapers on properties of 3D printing concrete (3DPC) …

Extrusion rheometer for 3D concrete printing

R Jayathilakage, P Rajeev, J Sanjayan - Cement and Concrete Composites, 2021 - Elsevier
An ability to measure and monitor the rheological characteristics of concrete is important for
3D printing applications. Printable concretes need to have high yield stress and viscosity for …

Transport properties of concrete-like granular materials interacted by their microstructures and particle components

W Xu, H Sun, W Chen, H Chen - International Journal of Modern …, 2018 - World Scientific
Granular materials as typical soft matter, their transport properties play significant roles in
durability and service life in relevant practical engineering structures. Physico-mechanical …

Advanced numerical assessment of the permeability of pervious concrete

R Pieralisi, SHP Cavalaro, A Aguado - Cement and Concrete Research, 2017 - Elsevier
The most singular characteristic of pervious concrete is its interconnected porosity that
allows water to flow through at high rates. The objective of this paper is to develop and …

Numerical and experimental studies of aggregate blocking in mortar extrusion

K El Cheikh, S Rémond, N Khalil, G Aouad - Construction and Building …, 2017 - Elsevier
Numerical and experimental study of aggregate blocking in extrusion of mortar is presented.
The studied system consists of a pipe with a nozzle at the tip. Fresh mortar is modeled by …

Numerical study on pore clogging mechanism in pervious pavements

J Zhang, G Ma, Z Dai, R Ming, X Cui, R She - Journal of Hydrology, 2018 - Elsevier
The most distinguished characteristic of pervious concrete is its connected porosity that
allows water to percolate. And the permeable capacity will decrease rapidly once the …

Optimization of fresh concrete pumping pressure loss with CFD-DEM approach

S Jiang, X Chen, G Cao, Y Tan, X Xiao, Y Zhou… - … and Building Materials, 2021 - Elsevier
In this study, a three-dimensional model of a concrete pump truck conveying pipe was
established, and a computational fluid dynamics-discrete element method (CFD-DEM) …

Numerical study of the effect of ITZ on the failure behaviour of concrete by using particle element modelling

S Zhang, C Zhang, L Liao, C Wang - Construction and Building Materials, 2018 - Elsevier
The interface transition zone (ITZ) is the weakest area in the concrete three-phase medium,
which directly affects concrete strength, stiffness, and durability. Because the ITZ has small …