| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Galan, Isabel
Graz University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2023New Insights into the Carbonation Process of Mortars and Concretescitations
- 2023Concrete corrosion analysis using optical chemical sensors and imaging
- 2023Optical sensors for the durability assessment of cement-based infrastructure
- 2022The hydration of fast setting spray binder versus (aluminum sulfate) accelerated OPCcitations
- 2022In situ pH monitoring in accelerated cement pastescitations
- 2021Continuous optical in-situ pH monitoring during early hydration of cementitious materialscitations
- 2021Durability of clinker reduced shotcrete: Ca2+ leaching, sintering, carbonation and chloride penetrationcitations
- 2021Durability of clinker reduced shotcrete: Ca2+ leaching, sintering, carbonation & chloride penetrationcitations
- 2019Hydration processes of accelerated cementitious systems governing early strength development
- 2017Enthalpy of formation of ye’elimite and ternesite
- 2014Characterization of micro-pore structure in novel cement matricescitations
- 2012Thermogravimetrical analysis for monitoring carbonation of cementitious materialscitations
Places of action
| Organizations | Location | People |
|---|
document
Hydration processes of accelerated cementitious systems governing early strength development
Abstract
Mixes used for sprayed concrete differ from those used for cast concrete in various aspects, the most important one being the presence of setting accelerators, which control the chemical reactions during the first hours of hydration. In particular, the use of alkali-free aluminium sulfate based accelerators promotes the almost instantaneous and massive formation of ettringite, which facilitates rapid setting<br/>and contributes to the strength gain needed to ensure good adherence between the shotcrete and the substrate and to provide adequate mechanical support.<br/>The use of supplementary cementitious materials and fillers in shotcrete has not been fully explored yet. However, the same environmental criteria as for conventional concrete should be considered and the development of low clinker formulas for shotcrete with a lower ecological footprint is of primary importance.<br/>In this paper data on the hydration of sprayed concrete are presented. Characterization techniques such as compressive strength tests, isothermal calorimetry, shear modulus measurements, SEM and in-situ XRD allowed to follow phases’ formation and strength development during the first 24 hours<br/>after spraying, both in laboratory and real scale tests. In particular, the acceleration of the calcium silicate hydration in the presence of fine limestone powder is discussed.