Particle-bed 3D printing in concrete construction–possibilities and challenges

D Lowke, E Dini, A Perrot, D Weger, C Gehlen… - Cement and concrete …, 2018 - Elsevier
This article provides an overview of different particle-bed 3D printing techniques for the
production of concrete elements. A classification is proposed which considers the direct …

The origins of thixotropy of fresh cement pastes

N Roussel, G Ovarlez, S Garrault, C Brumaud - Cement and Concrete …, 2012 - Elsevier
In this paper, we show that the thixotropic behavior of standard fresh cement pastes may find
two origins. We first clarify the ambiguity in literature concerning the critical strain of fresh …

Flowability of fibre-reinforced concrete and its effect on the mechanical properties of the material

B Boulekbache, M Hamrat, M Chemrouk… - … and Building Materials, 2010 - Elsevier
Fibre distribution is an important factor, affecting both the fresh-and hardened-state
properties of concrete. The paper describes a study in which the fibre distribution and …

Interlaboratory study on rheological properties of cement pastes and reference substances: comparability of measurements performed with different rheometers and …

M Haist, J Link, D Nicia, S Leinitz, C Baumert… - Materials and …, 2020 - Springer
This paper presents the results of an interlaboratory study of the rheological properties of
cement paste and ultrasound gel as reference substance. The goal was to quantify the …

Life cycle assessment (LCA) and multi-criteria decision-making (MCDM) analysis to determine the performance of 3D printed cement mortars and geopolymers

AI Yoris-Nobile, E Lizasoain-Arteaga… - Journal of …, 2023 - Taylor & Francis
A comparison between low-clinker cement and geopolymer mortars for their application in 3
D printing is discussed in this paper. The mortars are composed of materials with low …

Flows of suspensions of particles in yield stress fluids

G Ovarlez, F Mahaut, S Deboeuf, N Lenoir… - Journal of …, 2015 - pubs.aip.org
We study the rheological behavior of suspensions of noncolloidal spheres in yield stress
fluids (concentrated emulsions). These are good model systems for understanding, eg, the …

Flows and heterogeneities with a vane tool: Magnetic resonance imaging measurements

G Ovarlez, F Mahaut, F Bertrand, X Chateau - Journal of rheology, 2011 - pubs.aip.org
We study the local flow properties of various materials in a vane-in-cup geometry. We use
magnetic resonance imaging techniques to measure velocities and particle concentrations …

Extension of spread-slump formulae for yield stress evaluation

A Pierre, C Lanos, P Estelle - Applied Rheology, 2013 - degruyter.com
This paper provides a new model to evaluate the yield stress of suspensions, slurries or
pastes, based on the release of a finite volume of material onto a horizontal surface …

Large particle 3D concrete printing—a green and viable solution

I Mai, L Brohmann, N Freund, S Gantner, H Kloft… - Materials, 2021 - mdpi.com
The Large Particle 3D Concrete Printing (LP3DCP) process presented in this paper is based
on the particle bed 3D printing method; here, the integration of significantly larger particles …

A new look at the measurement of cementitious paste setting by Vicat test

H Sleiman, A Perrot, S Amziane - Cement and Concrete Research, 2010 - Elsevier
The Vicat test is a standard test for measuring the setting times of cement paste and mortar.
The physical background of the test is based on the resistance of a paste to dynamic …