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321
Solvent Free Synthesis of Chalcones and their Antibacterial Activities
Published 2005-01-01“…The solvent free synthesis of six chalcones was carried out by grinding the piperanal and the acetophenone (unsubstituted, 4-methyl, 4-methoxy, 4-bromo, 4-nitro, 3-chloro) in the presence of solid sodium hydroxide with a mortar and pestle. In general, the chalcones were obtained in high yield and high purity. …”
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322
Compressive study on recycled concrete: experiment and numerical homogenization modelling
Published 2024-01-01“…In this model, we assume that the behavior of the mortar phase, the concrete, and the recycled aggregates follow Mazars damage law. …”
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323
A Study on the Influence of Sodium Silicate Concentration and SiO2 : Na2O Ratio on the Properties of Low-Calcium Fly Ash-Based Alkali-Activated Materials Cured at Ambient Condition...
Published 2022-01-01“…Using 32% sodium disilicate solution significantly improved the flowability of mortar. Moreover, it increased the compressive strength and remarkably decreased the setting time of AAM at ambient temperature curing. …”
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324
Effects of Voids on Concrete Tensile Fracturing: A Mesoscale Study
Published 2017-01-01“…Aggregate is assumed to behave elastically, while a continuum damaged plasticity model is employed to describe the mechanical behaviors of mortar and ITZ. The effects of voids on the fracture mechanism of concrete under uniaxial tension are first detailed, followed by an extensive investigation of the effects of void volume fraction on concrete tensile fracturing. …”
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325
Effects of Aggregate Gradation on the Physical Properties of Semiflexible Pavement
Published 2014-01-01“…Semiflexible pavement (SFP), a composite pavement, is formed by filling into a very open porous asphalt skeleton a specifically designed water consistency fluid mortar with a very high early and 28-day strength. …”
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326
Influence of Ceramic Roof Tile Waste Powder as a Partial Cementitious Material on the Initial and Final Setting Times of Cement Paste
Published 2025-01-01“…We can use this waste as a cementitious material in mortar mixtures. Based on this background, the goal of this research is to determine the setting time of a cement mixture containing ceramic tile waste powder. …”
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327
La encrucijada de la cooperación para el desarrollo apuestas por una epistemología crítica
Published 2018-01-01“…Por el otro, se somete a un empirismo extremo donde superando el carácter especulativo del anterior, se incapacita para forjar una teoría sobre lo que realmente funciona. …”
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328
Civil structural health monitoring and machine learning: a comprehensive review
Published 2024-07-01“…These models may be used to estimate the compressive strength of masonry or repair mortars, probable damage scenarios in buildings, concrete models, beams, and columns for determining the mechanical characteristics of materials, damage detection in civil structures, and so on. …”
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329
A Stress-Strain Model for Brick Prism under Uniaxial Compression
Published 2019-01-01“…The brick prism compression tests were conducted with different mortar strengths and with constant brick strength. …”
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330
La ruta Atlántica del pensamiento afrodescendiente. Hacia un referencial teórico afro sobre la historia de la trata transatlántica, la esclavitud perpetua y la invención del sofism...
Published 2014-01-01“…Las autoras y autores que aquí señalaremos teorizaron las experiencias que atravesaron en el seno de sociedades esclavistas y racialistas en América, el Caribe y Europa a punto de forjar un pensamiento propio que está registrado en cartas, poemas, novelas, autobiografías y tesis académicas. …”
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331
Refined Rigid Block Model for In-Plane Loaded Masonry
Published 2020-01-01“…In this case, the proposed model is improved by assuming rigid quadrilateral elements connected by one-dimensional nonlinear interfaces, which are adopted both to represent mortar (or dry) joints between the blocks and also to represent inner potential cracks into the blocks. …”
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332
Liminarités, fissures et réécritures : un événement à la frontière entre le nord du Portugal et la Galice
Published 2017-07-01“…In this case study, the event occurs in a border village, ten years after the Alzamiento : Cambedo da Raia is surrounded and under several mortar attacks, people are killed, a man commits suicide, several other people are arrested and some among these latter are sent to the dreadful Tarrafal concentration camp. …”
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333
Microstructural Mechanical Analysis of Warm-Mixed Reclaimed Semiflexible Pavement Materials with Interfacial Weakening Effect
Published 2021-01-01“…Results show that the maximum compressive stress of the new and RAP aggregates and cement mortar with interface is greater than that without interface and the compressive stress of the material increases when considering the interface. …”
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334
Rheological Method for Alpha Test Evaluation of Developing Superplasticizers’ Performance: Channel Flow Test
Published 2017-01-01“…The proposed procedure for the test includes the mix proportion of a test mortar, the test method, and rheological interpretation of the test results.…”
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335
High-Volume Fly Ash-Based Cementitious Composites as Sustainable Materials: An Overview of Recent Advances
Published 2021-01-01“…High-volume fly ash (HVFA) cementitious composites (paste, grout, mortar, and concrete) have been widely investigated as a class of sustainable materials due to their lower carbon footprint and often better life cycle performance than conventional Portland cement mixtures. …”
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336
Fostering Inclusion in Digital Marketplace: Vistas into the Online Shopping Experiences of Consumers with Visual Impairment in India
Published 2024-05-01“… Online shopping has become increasingly prevalent in recent years, overshadowing traditional brick-and-mortar shopping. Research has tried to understand the online shopping experiences of various consumers. …”
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337
Panafricanismo afrocaribeño en George Padmore y C.L.R. James. Insumos para ampliar la genealogía de la teoría descolonial
Published 2020-01-01“…El objetivo principal de estas líneas es visibilizar a otras figuras afrocaribeñas radicales que contribuyeron a forjar un sentido de unidad y solidaridad entre los racializados y explotados por los imperios coloniales capitalistas, con el fin de ampliar el archivo del pensamiento descolonial, en tanto figuras fundacionales que su política estuvo signada por un talante anticolonial, antiimperial y anticapitalista. …”
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338
Experimental and Numerical Study on the Behavior of Energy Piles Subjected to Thermal Cycles
Published 2018-01-01“…The model pile is composed of cement mortar and dry sand with a relative density of 30% is used for the model ground. …”
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339
Experimental Study on Hygrothermal Deformation of External Thermal Insulation Cladding Systems with Glazed Hollow Bead
Published 2016-01-01“…This research analyzes the thermal and strain behavior of external thermal insulation cladding systems (ETICS) with Glazed Hollow Beads (GHB) thermal insulation mortar under hygrothermal cycles weather test in order to measure its durability under extreme weather (i.e., sunlight and rain). …”
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340
Effect of Curing Conditions and Freeze-Thaw Cycles on the Strength of an Expansive Soil Stabilized with a Combination of Lime, Jaggery, and Gallnut Powder
Published 2018-01-01“…This combination of materials, used for the manufacture of lime-based mortars, was adopted in stabilization of an expansive soil. …”
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