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Showing 1 to 20 of 62 for “"Concrete Materials"”.
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Early age creep and shrinkage of emerging concrete materials
Concrete pavements and structures are especially vulnerable to cracking at early age. The volumetric instability of concrete at early age is a frequent cause of cracking. The primary components of volume change are external drying shrinkage, autogenous shrinkage, and thermal dilation. When concrete …
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Micromechanical finite element modeling of asphalt concrete materials considering moisture presence
Embargo set by: Seth Robbins for item 50534 Lift date: 2016-09-16T17:18:17Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system
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AI-powered Data Mining for the Development of Sustainable Concrete Materials
… collections. The sustainable transition of the concrete industry, a major contributor to global CO₂ emissions, demands both operational optimization and scientific innovation. This thesis presents comprehensive data mining frameworks for both industrial and literature source data to support the …
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Applications of finite element method in studying mechanical behavior of concrete materials on different scales
… first study considers the microstructure of foam concrete material. The objective is providing insights for understanding the foam concrete crushing behavior, where the real foam concrete microstructure is studied. With a micro-CT scan providing the foam geometry information, tetrahedral meshes …
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Adição e subtração dos números inteiros e o uso de materiais concretos
… analyze the potential and limitations of using concrete materials for teaching addition and subtraction of whole numbers in a class of 7th grade of elementary school at a school in the municipal schools of the city of Itabaiana - PB. In this research we seek to value the importance of using …
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Fracture-Based Method to Determine the Flexural Load Capacity of Concrete Slabs
… service demands and limited availability of raw materials for rigid pavements pose a unique challenge in terms of the initial pavement design, concrete material selection, and the slab's cracking performance throughout its service life. New pavement technologies and concrete materials continue to …
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A Developmental Program for Trainable Mentally Retarded Pupils
… Aid (SEFA) program (Gunzburg, 1964). Additional concrete materials were used to supplement the SEFA material. The children's growth in the following areas of social competence was evaluated: self-help, communication, socialization, and occupation.
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As operações básicas da matemática e a educação do campo: uma experiência no interior da Paraiba
… 29 students, and attended three classes using concrete materials, always the class with a fixation activity was completed. On the last day of the investigation we applied a survey of activity in an attempt to identify the conceptions of the students at the end of the study. At the end of the …
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The Nature of Building A Public Arts Complex in Washington, DC
… are witnesses to the human ability to construct concrete things. I believe that the real core of all architectural work lies in the art of construction. At the point in time when concrete materials are assembled and erected, the architecture we have been looking for becomes part of the real …
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The performance of lightweight concrete brick containing expanded polystyrene and palm oil fuel ash
The development of lightweight building materials has contributed to the construction industry, probably because of its advantages in terms of lower weight and low construction cost. One of the most demanded lightweight building material is lightweight concrete brick. Owing to rapid population …
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The role of manipulatives in learning to multiply and factor polynomials
… the hypothesis that the manipulation of concrete materials can contribute substantively to the learning of the operation of multiplication of polynomials and its inverse, factorization, in children who are in eighth-grade pre-algebra mathematics classes. The study involved a comparison of …
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Determining the Air Void Parameters of Concrete Using Digital Image Analysis of Polarized Light Micrographs
… used to obtain the air void parameters of concrete materials. These air void parameters provide valuable information that has been linked to the performance of concrete under conditions such as freezing and thawing cycles. The standard test procedure involves linearly traversing a cut and …
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Behaviour and Analysis of Strain Hardening Fiber Reinforced Cementitious Composites Under Shear and Flexure
… the years in quantifying the contribution of concrete to the shear strength of concrete members. By introduction of novel cementitious material, a much greater need to develop a standard to treat the concrete in a systematic manner is felt. In this thesis, an alternative framework of analysis …
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Shear Behavior of Reinforced Concrete Beams and Prestressed Concrete Beams
… the last decades, developments in high-strength concrete materials are rapid, but codes of practice still limits the concrete compressive strength in design of concrete structures due to a lack of experimental research data. As an effort to overcome the limitation to the use of high strength …
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Characterization of UHPFRC Materials for Bridge Construction: An Opportunity to Offset the Need for Prestressing in Bridge Decks
… decade, an increasing number of reinforced concrete bridge structures are deemed to be in need of repair either due to the short durability lifetime of the materials of their original design, or due to climatic extremes that cause the concrete materials to fail (Mermigas 2018). This is …
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A geometria na construção Civil: uma aplicação em sala de aula.
… was to propound the development of teaching materials that exploit the geometric concepts of area, perimeter and scale present in planning and setting of the plant and the model of a house, considering the knowledge of professionals who did not have high school. The research was accomplish …
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On the Development of 8,000 psi Geopolymer Mortar for Practical Use in Field Applications
… as an alternative to ordinary portland cement in concrete materials, it is not widely used in field applications. Geopolymer materials have no set guidelines for mixture design and often require heat curing to facilitate strength gain. Additionally, many geopolymers are created using carefully …
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Development and Structural Performance Assessment of Low-Carbon Concrete Using Recycled Concrete Aggregates and Secondary Materials
… the structural performance of low carbon concrete (LCC) developed with various proportions of recycled concrete aggregates (RCA) and supplementary cementitious materials (SCMs) as sustainable material alternatives to conventional concrete materials. Extensive materials testing and analysis …
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