Endowing strength to calcium silicate hydrate (CSH) powder by high pressure mechanical compaction
The strength origin of CSH matrix is a key question in cement and concrete research, which
remains largely unclear despite a century of study. Here we present a novel approach to …
remains largely unclear despite a century of study. Here we present a novel approach to …
Nanoscale insights into the influence of seawater (NaCl) on the behavior of calcium silicate hydrate
Using seawater for concrete production is potentially advantageous from a sustainability
perspective. However, the fundamental mechanisms underlying seawater-mixed concrete …
perspective. However, the fundamental mechanisms underlying seawater-mixed concrete …
Preferred orientation of calcium silicate hydrate and its implication to concrete creep
Calcium silicate hydrate (C–S–H) is the primary binding phase of cement-based and alkali-
activated materials. The preferred orientation of C–S–H under non-hydrostatic pressure (eg …
activated materials. The preferred orientation of C–S–H under non-hydrostatic pressure (eg …
[HTML][HTML] Graphene oxide-reinforced thin shells for high-performance, lightweight cement composites
Lightweight cement composites have been proposed in the literature, fabricated by
controlling the cement coating onto 3D-printed polymer scaffolds to form submillimeter thin …
controlling the cement coating onto 3D-printed polymer scaffolds to form submillimeter thin …
[HTML][HTML] Nanoscale shear cohesion between cement hydrates: The role of water diffusivity under structural and electrostatic confinement
The calcium silicate hydrate (CSH) controls most of the final properties of the cement paste,
including its mechanical performance. It is agreed that the nanometer-sized building blocks …
including its mechanical performance. It is agreed that the nanometer-sized building blocks …
Comparative analysis of concrete behaviour under compressive creep and cyclic loading
B Kern, N Oneschkow, AL Podhajecky, L Lohaus… - International Journal of …, 2021 - Elsevier
The expected deformations during service life of concrete structures are described using
creep models, developed for constant loading. Thereby, the effect of cyclic loading …
creep models, developed for constant loading. Thereby, the effect of cyclic loading …
Revealing the difference between creep behavior of hydration products of Portland cement and alkali-activated slag paste at early age
This study investigates the early-age creep behavior of various gels in Portland cement (PC)
and alkali-activated slag (AAS) pastes. The objective is to reveal the correlation between the …
and alkali-activated slag (AAS) pastes. The objective is to reveal the correlation between the …
Enhancing the performance of class G cement for subsurface gas storage and well completion: Synergistic impact of North Dakota's fly ash and eggshell powder
Sustainable well completions and integrity become critical in response to the rapidly
increasing growth in oil and gas production brought about by unconventional drilling …
increasing growth in oil and gas production brought about by unconventional drilling …
Influence of initial moisture content on creep and shrinkage of concrete at constant and cyclic ambient humidity
AL Podhajecky, N Oneschkow, B Kern, L Lohaus… - Materials and …, 2023 - Springer
Creep and shrinkage are strongly influenced by the moisture content of concrete and by the
ambient humidity. The effect of the latter is currently considered in models and design codes …
ambient humidity. The effect of the latter is currently considered in models and design codes …
Multi-scale experimental investigation and analytical micro-mechanical modeling to determine Young's modulus of alkali-activated slag concrete
In this study, multi-scale experiments and analytical micro-mechanics based modeling are
conducted to evaluate Young's modulus of alkali-activated slag (AAS) concrete. The …
conducted to evaluate Young's modulus of alkali-activated slag (AAS) concrete. The …