| 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 |
|
Kucharczyková, Barbara
Brno University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2024Hybrid Geopolymer Composites Based on Fly Ash Reinforced with Glass and Flax Fibers
- 2023Effect of siliceous sand volume fraction on the properties of alkali-activated slag mortars
- 2022Influence of activator type and slag volume fraction on properties of alkali-activated slag pastescitations
- 2021Mechanical Fracture and Fatigue Characteristics of Fine-Grained Composite Based on Sodium Hydroxide-Activated Slag Cured under High Relative Humiditycitations
- 2021Deflection of an eccentric crack under mixed-mode conditions in an SCB specimencitations
- 2021Influence of rock inclusion composition on the fracture response of cement-based composite specimenscitations
- 2021Advanced Evaluation of the Freeze–Thaw Damage of Concrete Based on the Fracture Testscitations
- 2021Numerical analysis of a semi-circular disc with an angled crack loaded in mixed-mode
- 2020Modelling of interfacial transition zone effect on resistance to crack propagation in fine-grained cement-based compositescitations
- 2020Influence of freeze-thaw cycles on fracture parameters values of lightweight concrete ; Vliv cyklického zmrazování a rozmrazování na lomové parametry lehkého betonucitations
- 2020Multi-parameter fracture mechanics: crack path in a mixed-mode specimencitations
- 2020Experimental Analysis on Shrinkage and Swelling in Ordinary Concretecitations
- 2018Fracture properties of concrete specimens made from alkali activated binders.citations
- 2017Influence of Periodic Freezing on the Value of the Elastic Modulus of the Light-weight Fibre Concrete ; Vliv cyklického zmrazování na hodnotu modulu pružnosti lehkého vláknobetonu
- 2017The use of the acoustic emission method for the monitoring of changes in the internal structure of polymer-cement mortars when testing the static compressive modulus of elasticity ; Využití metody akustické emise pro monitorování změn vnitřní struktury polymer-cementových malt během zkoušky statického modulu pružnosti v tlaku
- 2017The Acoustic Emission Parameters Obtained during Three-point Bending Test on Thermal-stressed Concrete Specimenscitations
Places of action
| Organizations | Location | People |
|---|
document
Effect of siliceous sand volume fraction on the properties of alkali-activated slag mortars
Abstract
One of the critical factors affecting the performance of alkali-activated slag (AAS) is the nature and dose of alkali activator. The activator type can play a significant role during the transition from pastes to mortars or concretes. Therefore, three basic sodium activators (water glass, carbonate, and hydroxide) of the same molarity of 4M Na+ were used to prepare AAS-based mortars with different volume fractions of siliceous sand. These were compared by means of workability, mechanical strength, and long-term shrinkage under autogenous conditions. The results were compared to those obtained on pastes with similar workability. Increasing the content of the sand tended rather to decrease the mechanical properties, while greatly decreased autogenous shrinkage. Nevertheless, the most remarkable differences for different activators were observed when comparing the mortars with pastes. The transition from pastes to mortars resulted in the highest reduction in both compressive and flexural strength for sodium hydroxide. The flexural strength of the mortars with sodium water glass and sodium carbonate even increased considerably in presence of sand.