Capabilities for property assessment on different levels of the micro-structure of DEM-simulated cementitious materials

Stroeven, Piet; Li, Kai; Le, Nghi L.B.; He, Huan; Stroeven, Martijn

doi:10.1016/j.conbuildmat.2015.04.012

Cited by 18 publications

(4 citation statements)

References 53 publications

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“…Several studies have examined the impact of particle morphology on properties. One study found that increasing elongation of ellipse-shaped particles leads to higher packing density [117]. Another study demonstrated that face-to-face close-packed cubic particles promote lower porosity and improved mechanics, enhancing structural integrity [118] (Figure 7a and b).…”

Section: Influences Of Morphology On Mechanical Propertiesmentioning

confidence: 99%

The missing link in the bottom-up theory of mechanical properties of calcium silicate hydrate

Geng,

Zhang

2023

RILEM Tech Lett

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Calcium silicate hydrate (C-S-H) is the primary binding phase in modern concrete. While significant progress has been made in understanding the structure and behavior of C-S-H at atomistic scale and macro scale, there lacks a theory that links them. This review paper focuses on identifying the key challenges in bridging the gap between the atomic-scale characteristics of C-S-H and its larger scale mechanical behaviors. Recent experimental and simulation work on the multiscale mechanical properties of C-S-H is summarized. The need for integrating experimental observations, theoretical models, and computational simulations to establish a comprehensive and predictive bottom-up theory of the mechanical properties of C-S-H is highlighted. Such a theory will enable a deeper understanding of C-S-H behavior and pave the way for the design and optimization of cementitious materials with tailored mechanical performance.

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Section: Influences Of Morphology On Mechanical Propertiesmentioning

confidence: 99%

The missing link in the bottom-up theory of mechanical properties of calcium silicate hydrate

Geng,

Zhang

2023

RILEM Tech Lett

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“…DEMs are data products with applications in an extensive set of disciplines such as civil engineering [7], hydrology [8], geomorphology [9], agriculture [10], forestry [11], etc. Some of their applications include modelling for the prevention of natural disaster (floods, fires, etc.…”

Section: Introductionmentioning

confidence: 99%

A New Approach to the Quality Control of Slope and Aspect Classes Derived from Digital Elevation Models

2021

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The usefulness of the parameters (e.g., slope, aspect) derived from a Digital Elevation Model (DEM) is limited by its accuracy. In this paper, a thematic-like quality control (class-based) of aspect and slope classes is proposed. A product can be compared against a reference dataset, which provides the quality requirements to be achieved, by comparing the product proportions of each class with those of the reference set. If a distance between the product proportions and the reference proportions is smaller than a small enough positive tolerance, which is fixed by the user, it will be considered that the degree of similarity between the product and the reference set is acceptable, and hence that its quality meets the requirements. A formal statistical procedure, based on a hypothesis test, is developed and its performance is analyzed using simulated data. It uses the Hellinger distance between the proportions. The application to the slope and aspect is illustrated using data derived from a 2×2 m DEM (reference) and 5×5 m DEM in Allo (province of Navarra, Spain).

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“…Los MDE son productos de datos con aplicaciones en un amplio conjunto de disciplinas como Ingeniería Civil (Stroeven et al, 2015), Hidrología (Saksena y Merwade, 2015), Geomorfología (Gómez et al, 2015), Agricultura (Rekha et al, 2015), Silvicultura (Juel et al, 2015), etc. Dos usos principales de los MDE son el cálculo de la pendiente y la orientación (Mesa-Mingorance y Ariza- López, 2020;.…”

Section: Introductionunclassified

Aplicación de los test de equivalencia al control tipo temático de magnitudes asociadas a un Modelo Digital de Elevaciones

Alba-Fernández

2021

rcarto

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Este trabajo propone un método de control de calidad de tipo temático (basado en clases) aplicable a los casos de las pendientes y orientaciones derivadas de Modelos Digitales de Elevaciones (MDE). La novedad del método que se propone es adoptar la perspectiva de detectar “diferencias relevantes” entre el producto y la referencia y no de igualdad exacta, que es lo usual en los contrastes de hipótesis más generalizados. El trabajo con categorías robustece la aproximación a las variables que se controlan, y la perspectiva de “diferencias relevantes” permite controlar el grado de “cercanía” que se desea por medio de la distancia de Hellinger. En el caso práctico que se presenta se comparan los modelos de pendiente y orientaciones derivados de dos productos MDE, el primero con resolución de 2x2 m, que se considera como referencia o patrón para el control, y el segundo con resolución de 5x5 m que es el producto a evaluar. La aplicación a este caso real permite entender mejor cómo se relacionan los aspectos más significativos del método y entender la capacidad de análisis que posee.

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Capabilities for property assessment on different levels of the micro-structure of DEM-simulated cementitious materials

Cited by 18 publications

References 53 publications

The missing link in the bottom-up theory of mechanical properties of calcium silicate hydrate

The missing link in the bottom-up theory of mechanical properties of calcium silicate hydrate

A New Approach to the Quality Control of Slope and Aspect Classes Derived from Digital Elevation Models

Aplicación de los test de equivalencia al control tipo temático de magnitudes asociadas a un Modelo Digital de Elevaciones

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