Academic literature on the topic 'Concrete mortar plasticity'

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Journal articles on the topic "Concrete mortar plasticity"

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Yue, Ai Jun, Jun Lin Liang, and Jian Long Zheng. "Study on the Variability of the Surface Flexural Strength of Hardened Concrete in Laboratory." Applied Mechanics and Materials 256-259 (December 2012): 1858–61. http://dx.doi.org/10.4028/www.scientific.net/amm.256-259.1858.

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he experimentation was to study the effect to cement concrete surface flexural strength by simulating the different natures and thickness of cement mortar, The slump was defined as 20mm and 70mm, on behalf of the low plasticity of concrete and plastic concrete, the three conditions of the surface mortar thickness 25mm, 15mm and 5mm was to simulate the different thickness of mortar extracted during concrete construction,which adopted three different mortar ratio and mortar consistency, the concrete specimens with the 150*150*550mm steel mould were made from concrete and the surface layer of mor
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Diao, Hongguo, Xinquan Wang, Yunliang Cui, Shangyu Han, and Changguang Qi. "Analysis of Rubberized Self-Compacting Concrete under Uniaxial Tension by 3D Mesoscale Models." Advances in Civil Engineering 2020 (November 29, 2020): 1–20. http://dx.doi.org/10.1155/2020/8854730.

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Damage and failure of rubberized self-compacting concrete (RSCC) are studied by mesostructural models. The models include six phases: mortar, aggregates, rubber particles, aggregate-mortar interfacial transaction zones (A-M ITZs), rubber-mortar interfacial transaction zones (R-M ITZs), and voids. Thin layers between mortars and aggregates and between mortars and rubber particles represent A-M ITZs and R-M ITZs, , respectively. Aggregates and rubber particles are modeled with linear elastic, while mortars, A-M ITZs, and R-M ITZs are with different damage-plasticity behaviors. The mesoscale mode
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Layachi, Berredjem, Bordjiba Abdelhak, Molez Laurent, and Arabi Nourredine. "Influence of the recycled sand on the cement mortars." STUDIES IN ENGINEERING AND EXACT SCIENCES 5, no. 1 (2024): 1152–65. http://dx.doi.org/10.54021/seesv5n1-060.

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In construction, a recent direction is to examine and integrate alternative sources of building materials with the goal of substituting the use of natural materials. This transition is encouraged by growing concern among policymakers and researchers regarding the environmental footprint of the construction industry. The incorporation of recycled aggregates into cementitious materials, such as concrete or mortar, results in a deterioration of their mechanical performance and their durability. Scientific studies devoted to recycled concrete have demonstrated that it is affected by the introducti
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Bagcal, O., and M. Baccay. "Influence of Agricultural Waste Ash as Pozzolana on the Physical Properties and Compressive Strength of Cement Mortar." Journal of Applied Engineering Sciences 9, no. 1 (2019): 29–36. http://dx.doi.org/10.2478/jaes-2019-0004.

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Abstract The increasing demand in cement has inspired researchers in both developed and developing countries around the world to explore and consider alternative materials as partial replacement of cement both in concrete and in mortar. In this study, the influence of agricultural waste, particularly corn cob ash, (CCA) as pozzolanic material or supplementary cementitious material (SCM) on the physical properties and compressive strength of cement mortar was investigated. CCA was used as partial replacement of cement ranging from 0% to 20% by weight at water-cementitious ratio of 0.6 and mix p
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Matos, Paulo Ricardo de, Rudiele Aparecida Schankoski, Ronaldo Pilar, and Luiz Roberto Prudêncio Junior. "Using ready-mixed mortars in concrete block structural masonry." Ambiente Construído 20, no. 3 (2020): 431–49. http://dx.doi.org/10.1590/s1678-86212020000300438.

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Abstract Ready-mixed mortars have been increasingly used due to their potential for waste reductions and productivity increases. However, research regarding their use in structural masonry applications are practically non-existent. Thus, this work investigated the technical feasibility of using ready-mixed mortars with nominal compressive strengths of 6, 9 and 14 MPa and storage times of 0 and 36 hours in concrete block structural masonry. The fresh state properties of the mortars were evaluated at 0 and 36 hours through the slump test, consistency and plasticity by the Gtec test, and entraine
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Kuziak, Justyna, Kamil Zalegowski, Wioletta Jackiewicz-Rek, and Emilia Stanisławek. "Influence of the Type of Cement on the Action of the Admixture Containing Aluminum Powder." Materials 14, no. 11 (2021): 2927. http://dx.doi.org/10.3390/ma14112927.

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The study of the effect of cement type on the action of an admixture increasing the volume of concrete (containing aluminum powder), used in amounts of 0.5–1.5% of cement mass, was presented. The tests were carried out on cement mortars with Portland (CEM I) and ground granulated blast-furnace slag cement (CEM III). The following tests were carried out for the tested mortars: the air content in fresh mortars, compressive strength, flexural strength, increase in mortar volume, bulk density, pore structure evaluation (by the computer image analysis method) and changes in the concentration of OH−
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Khan, Waseem, Saleem Akhtar, Aruna Rawat, and Anindya Basu. "Experimental and Numerical Study on Flexural Behavior of Concrete Beams Using Notches and Repair Materials." Sustainability 16, no. 7 (2024): 2723. http://dx.doi.org/10.3390/su16072723.

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In a concrete beam, cracking is generated on the tension side under the effect of flexure, shear, and torsional loadings. Accordingly, these weak concrete members require repair and/or strengthening to increase or restore their internal load capacity. In the current experimental and numerical investigations on concrete beams, the impact of using notches with different width to depth ratios on the ultimate flexural load under a three-point test was considered. Further, the flexural behavior performance of a notched concrete beam repaired using the three repair materials—cement mortar, bacterial
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Anas, S. M., Rafat Tahzeeb, Rayeh Nasr Al-Dala’ien, Mehtab Alam, and Mohd Shariq. "Widely Employed Constitutive Material Models in Abaqus FEA Software Suite for Simulations of Structures and Their Materials: A Brief Review." E3S Web of Conferences 497 (2024): 02002. http://dx.doi.org/10.1051/e3sconf/202449702002.

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The structural response of masonry/concrete structures depends upon the load-carrying mechanism and subsequently deformations produced by loads carried. In masonry/concrete structures, identification of the stress/strain imposing stress conditions and strain hardening/softening makes the structural response more complicated. Elastic damage models or elastic-plastic constitutive laws are inadequate to simulate masonry/concrete response under high strain-rate loadings. Further, irreversible or plastic strain cannot be realized using the elastic damage model. Several constitutive damage models ar
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Lei, Guang Yu, Fa Ning Dang, and Feng Pan. "Numerical Simulation of Meso-Damage Process of Concrete under Dynamic Load and CT Experiment Verification." Applied Mechanics and Materials 174-177 (May 2012): 299–303. http://dx.doi.org/10.4028/www.scientific.net/amm.174-177.299.

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In mesoscopic level, concrete was taken as three-phase composites consisting of aggregate, bond and mortar. Use the Monte Carlo methods, establish random aggregate model of concrete and apply the concrete damage plasticity model. Judge the failure based on the load-displacement curve and then doing the numerical simulation to the specimen on the impact loads. Through CT test, get the CT images of various force stages of the concrete. Compare the damage process picture of the numerical simulation with CT test. Find the failure process of the numerical simulation is similar to the CT test. The r
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Forti, Tiago, Gustavo Batistela, Nadia Forti, and Nicolas Vianna. "3D Mesoscale Finite Element Modelling of Concrete under Uniaxial Loadings." Materials 13, no. 20 (2020): 4585. http://dx.doi.org/10.3390/ma13204585.

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Concrete exhibits a complex mechanical behavior, especially when approaching failure. Its behavior is governed by the interaction of the heterogeneous structures of the material at the first level of observation below the homogeneous continuum, i.e., at the mesoscale. Concrete is assumed to be a three-phase composite of coarse aggregates, mortar, and the interfacial transitional zone (ITZ) between them. Finite element modeling on a mesoscale requires appropriate meshes that discretize the three concrete components. As the weakest link in concrete, ITZ plays an important role. However, meshing
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Dissertations / Theses on the topic "Concrete mortar plasticity"

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Kohandelnia, Mojtaba. "Development of self-consolidating earth concrete (SCEC) with improved multifunctional performan ce for green construction." Electronic Thesis or Diss., La Rochelle, 2023. http://www.theses.fr/2023LAROS011.

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La construction en terre est considérée comme une construction verte en utilisant des matériaux disponibles localement avec un faible impact environnemental et une performance thermique supérieure. Malgré les avantages de ce matériau de construction, le processus de coulage est très consommateur de temps et d'énergie à cause de l’application de la compaction dynamique. Cette étude a pour but d'évaluer la faisabilité de formuler un béton de terre autoplaçant (BTAP) tout en étudiant ses performances rhéo-thermomécaniques et en identifiant les différents défis. Le premier défi est la présence de
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Іщук, Ігор Вікторович, та Ihor Ishchuk. "Дослідження впливу морозостійких добавок на будівельно- технічні, властивості бетону". Master's thesis, 2020. http://elartu.tntu.edu.ua/handle/lib/31756.

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Бетонування при негативних температурах пов'язане з ризиками розморожування бетону. При температурі + 5 ° С і нижче, волога, що знаходиться в розчині, кристалізується і припиняється процес гідратації цементу. Крім того, вода при кристалізації (замерзання) збільшується в об'ємі, і при розширенні розриває існуючі структурні зв'язки, які при відтаванні вже не відновлюються. Модифікований розчин пришвидшує закінчення термінів будівельних робіт за рахунок покращення текучості та пластичності, що дає більшу зручність укладання бетону.<br>Concreting at low temperatures is associated with the risks o
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Conference papers on the topic "Concrete mortar plasticity"

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Adheem, Ali, Majid Kadhim, Akram Jawdhari, and Mohammed Altaee. "Application of Drucker-Prager Plasticity Model for Concrete Confined with Fiber Reinforced Cementitious Mortar (FRCM)." In Proceedings of 2nd International Multi-Disciplinary Conference Theme: Integrated Sciences and Technologies, IMDC-IST 2021, 7-9 September 2021, Sakarya, Turkey. EAI, 2022. http://dx.doi.org/10.4108/eai.7-9-2021.2315489.

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Meng, Weina, and Kamal Henri Khayat. "Flexural Performance of Ultra-High Performance Concrete Ballastless Track Slabs." In 2016 Joint Rail Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/jrc2016-5814.

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Ballastless track slab offers excellent stability and durability and has been well accepted in high-speed railways worldwide. Rails are typically laid on precast concrete slabs that are subjected to dynamic load transferred from the rails. Cracks can be induced by shrinkage and mechanical loading in concrete, which accelerates the degradation and affects the performance of the track slab. As tens of thousands of miles of ballastless track are constructed, effective and efficient maintenance for the concrete slabs has become an issue. In this paper, ultra-high performance concrete (UHPC) is pro
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BELABID, Abderrahim. "Tire-Based Anti-Seismic Fibers to Increase the Ductility of Traditional Hydraulic Lime Concrete." In Mediterranean Architectural Heritage. Materials Research Forum LLC, 2024. http://dx.doi.org/10.21741/9781644903117-1.

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Abstract: Fibers have been widely used in construction since antiquity to reinforce raw earth or lime-based mortar. They prevent the propagation of micro-cracks and improve cohesion and shear strength. High-elasticity and plasticity fibers also enhance the material's capacity to absorb energy. The aim of this paper is to investigate the possibility of improving the seismic behavior of traditional buildings through the incorporation of fibers extracted from waste tires known for their high ductility. The objective is to recycle this non-biodegradable waste and utilize its mechanical characteris
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