Готові списки джерел за темами / Mortar - Analysis

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Добірка наукової літератури з теми "Mortar - Analysis"

Автор: Grafiati

Опубліковано: 4 червня 2021

Оновлено: 26 липня 2025

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Статті в журналах з теми "Mortar - Analysis"

Stoyanov, V., B. Kostova, and B. Dumanov. "Analysis and characterization of modern and ancient mortars." IOP Conference Series: Materials Science and Engineering 1276, no. 1 (2023): 012001. http://dx.doi.org/10.1088/1757-899x/1276/1/012001.

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Abstract The analysis, characterization, and comparison of modern and ancient mortars provide fundamental (by tracing the change in the raw materials and recipes used from the past to the present) and practical (obtaining modern mortars compatible with the ancient) knowledge. This work aimed to characterize modern and ancient mortars by investigating their phase composition, binder-to-aggregate ratio, hydraulicity, and hygroscopic properties. The used methods for analyses were powder X-ray diffraction, Fourier transforms infrared spectroscopy, and thermal analysis. A modern mortar (sample A) p

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Lorca, P., L. Soriano, M. V. Borrachero, J. Monzó, M. M. Tashima, and J. Payá. "Study on binary and ternary systems with cement, hydrated lime and fly ash: thermogravimetric analysis, mechanical analysis and durability behaviour." Materiales de Construcción 73, no. 351 (2023): e316. http://dx.doi.org/10.3989/mc.2023.346623.

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The use of high percentages of substitution of Portland cement by pozzolans can provoke the total consumption of portlandite. The present research proposes the study of ternary systems of Portland cement (PC), fly ash (FA), and hydrated lime (CH). After 180 days of curing, the mortar with 50% substitution of PC by FA obtained 65.9 MPa versus the mortars with an addition of 20% of CH and control mortar (100 PC) that obtained 69.9 MPa and 76.7 MPa respectively: this behavior is very positive value considering that tested FA containing mortars had a 50% of Portland cement. Regarding the effect of

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Stenholt-Jacobsen, Rasmus, Kurt Kielsgaard Hansen, and Inge Rörig-Dalgaard. "Karsten tube analysis for joint mortar identification in masonry." Journal of Physics: Conference Series 2654, no. 1 (2023): 012044. http://dx.doi.org/10.1088/1742-6596/2654/1/012044.

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Abstract The present work examines the Karsten tube penetration test to identify mortar types in existing masonry, for mortars containing air-lime or hydraulic binders. Mortar type identification is e.g. of relevance for the reusability of the fired clay bricks in the masonry, where a hydraulic binder content makes the mortar removal process significantly more difficult. The Karsten tube test makes it possible to make a simple and non-destructive mortar analysis on-site assessing the water absorption of the mortar, via the surface of the mortar joint alone. The present approach considers both

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Mora-Ortiz, René Sebastián, Sergio Alberto Díaz, Ebelia Del Angel-Meraz, and Francisco Magaña-Hernández. "Recycled Fine Aggregates from Mortar Debris and Red Clay Brick to Fabricate Masonry Mortars: Mechanical Analysis." Materials 15, no. 21 (2022): 7707. http://dx.doi.org/10.3390/ma15217707.

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In this research, the mechanical behavior of masonry mortars made with partial substitution of sand by recycled fine aggregates (RFAs) of mortar (MT) and recycled clay brick (RCB) was compared. Mortar specimens were built in two groups (MT and RCB) considering different replacement proportions by dry weight. To reduce the water absorption of RFAs during mortar making, the prewetting method was utilized. All the mixtures were assembled with a volumetric cement-to-aggregate ratio of 1:4 and a consistency of 175 ± 5 mm. The properties in the fresh and hardening state of mortars were analyzed sepa

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Cizer, Özlem, Luc Schueremans, Gerty Serre, Elke Janssens, and Koen Van Balen. "Assessment of the Compatibility of Repair Mortars in Restoration Projects." Advanced Materials Research 133-134 (October 2010): 1071–76. http://dx.doi.org/10.4028/www.scientific.net/amr.133-134.1071.

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In restoration works compatibility requirements of repair mortars are defined based on the original mortar characteristics, but the efficiency and the performance of the repair mortars after application on masonry are not generally evaluated. From this perspective, original mortars and repair mortars from two historic masonry structures were analyzed for their characterization. Compatibility of the repair mortars with the historic mortars is investigated in terms of chemical, mineralogical, and physical point of view. The efficiency of the analytical techniques used for the mortar characteriza

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Kosiachevskyi, Dmytro, Kamilia Abahri, Isabelle Trinsoutrot-Gattin, et al. "New Refined Experimental Analysis of Fungal Growth in Degraded Bio-Based Materials." Processes 12, no. 10 (2024): 2188. http://dx.doi.org/10.3390/pr12102188.

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When exposed to different building environmental conditions, bio-composite materials, such as hemp mortars, represent a risk of mold proliferation. This later plays a critical role in the biodeterioration of the materials when their physical properties are locally modified by the natural aging process. The primary objectives of the present work are first to assess the evolution of the surface of contaminated mortar; second, to investigate an accurate DNA extraction method that could be used for both bio-composite mortars and their fiber sources collected in situ; then, to understand the proces

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Shapoval, Mykola, Vadym Mykhaylik, and Anatoliy Kryvorot. "Analysis of the Design of a Hydraulic Mortar Pump with Various Combined Compensators." Technical sciences and technologies, no. 1 (39) (May 22, 2025): 98–108. https://doi.org/10.25140/2411-5363-2025-1(39)-98-108.

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Analysis of modern pumps indicates the search for ways to simplify their designs and improve the basic scheme of single-piston mortar pumps while minimizing pulsations in the pipeline during the transportation of building mortars. To reduce pulsations in modern single-piston mortar pumps, pressure compensators in the form of air caps of various volumes are used. But air compensators, along with their advantages, have significant disadvantages: compressed air directly contacts the pumped solution and is intensively removed from the cap during the operation of the mortar pump. Air removal is esp

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SEISEH, Ruba, Abdulraouf MAYYAS, Hussein AL-SABABHA, Wassef AL SEKHENEH, and Jürgen POPP. "FTIR AND THERMOGRAVIMETRIC ANALYSIS OF ANCIENT MORTAR FROM AL-AMUWAQQAR EARLY ISLAMIC BATHHOUSE IN JORDAN FOR CONSERVATION USE." International Journal of Conservation Science 14, no. 1 (2023): 3–18. http://dx.doi.org/10.36868/ijcs.2023.01.01.

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"This paper aims to analyze and evaluate the function of two types of ancient mortars in the bathhouse at al-Muwaqqar archaeological site in Jordan to promote the awareness level of cultural heritage conservation of ancient buildings and mortars in Jordan. The conservation of archaeological structures requires a thorough characterization and identification of the mortar components before carrying out the restoration, after the preserved results, and during the restoration process to decide how it responds. This work creates an experimental contribution through FTIR to study the influence of or

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Shivakumar, Mani, Aruna Singh, Thirumalini Selvaraj, and Shanmugapriya Thangaraj. "Production of the Traditional Organic Mortars of Padmanabhapuram Palace—A Characterization Study on the Simulated Mortars for Their Compatibility." Buildings 12, no. 9 (2022): 1466. http://dx.doi.org/10.3390/buildings12091466.

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The scientific investigation performed on the different mortar typologies of the Padmanabhapuram Palace mortars in a previous study led to the formulation of a similar traditional mortar. The outcome of the study was an increase in the carbonation action and mechanical strength of the mortar compared to conventional lime mortar, primarily due to the fermented organics such as aloe vera, cactus, kadukkai, hibiscus, jaggery, and neelamari. The transformation of portlandite crystals to calcite, along with the early developed C-S-H and C-A-S-H hydrated products reported by the XRD analysis. The bi

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Brahimi, Sihem, Miloud Hamadache, Adeline Gouillieux, and Rose Marie Dheilly. "Effect of Cement Substitution by both Perlite and Pozzolan Powders on the Mechanical Behavior and Water Absorption of Pozzolanic Mortar." Key Engineering Materials 955 (September 27, 2023): 165–70. http://dx.doi.org/10.4028/p-s8u74r.

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This paper studies the effect of both perlite and pozzolan powders as cement substituents. First, it addresses the mechanical properties of pozzolanic mortar in the short term, i.e., with a schedule of 7, 14 and 28 days. Next, in order to extend the analysis related to the porosity of the designed mortars, the water absorption is studied. The provided results indicated that the compressive strengths of the pozzolanic mortars were lower than those of the reference mortar. However, among the tested pozzolanic mortars, those containing 10% of perlite displayed superior strengths. Additionally, wh

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Дисертації з теми "Mortar - Analysis"

BENVENUTI, ANDREA. "Isogeometric Analysis for C1-continuous Mortar Method." Doctoral thesis, Università degli studi di Pavia, 2017. http://hdl.handle.net/11571/1203301.

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Isogeometric Analysis (IgA) is a technique for the discretization of Partial Differential Equations that preserves the same exact description of the computational domain through the analysis process. The exact geometry representation is based on the isoparametric concept, for which the same basis functions used for geometrical CAD parametrization are then used to approximate the unknown PDE solution. In this context, B-splines and NURBS are the class of functions most widely used in engineering design, and hence they are commonly employed in Isogeometric Analysis. These spaces include as a spe

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Ali, Jabbar Talib. "Structural design and analysis of masonry buildings using thin joint mortar." Thesis, University of Surrey, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.540708.

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Robertson, Edward Angus. "An analysis of the aerodynamics of a fiber optic mortar projectile." Thesis, Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/50082.

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In December of 1987 tests were conducted in the Virginia Tech Stability Wind Tunnel on a full-scale model of a fiber optic mortar projectile. The desired model configurations were sting-mounted on the Stability Tunnel STO-1 strain gauge balance. The sting was mounted on a streamlined vertical pylon which provided remote rotation in both pitch and yaw while maintaining the center of the balance along the tunnel centerline. The model inputs included the six-component force and moment data in body coordinates and the pressure data from the five pressure taps located within the model. The tunnel i

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TIBALDI, ALBERTO. "A Mortar Element Method for the Analysis of Electromagnetic Passive Devices." Doctoral thesis, Politecnico di Torino, 2015. http://hdl.handle.net/11583/2584954.

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The thesis consists of two blocks. The first and main block concerns the application of multi-domain spectral methods to the analysis of electromagnetic guiding structures. A general scattering formulation for vector differential problems is developed. The boundary-value problems are discretized using basis functions synthesized according to the mortar-element method. An analysis technique of the scattering generated by skew-incident plane waves on 2-D dielectric periodic structures based on this idea is proposed; the boundary-value problem describing these devices is given by the system of tw

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Pingarrón, Alvarez Victoria I. "Performance analysis of hydraulic lime grouts for masonry repair." Connect to PDF file, 2006. http://repository.upenn.edu/cgi/viewcontent.cgi?article=1013&context=hp_theses.

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Xia, Qingxi. "Numerical and experimental analysis of the dynamic behavior of concrete and mortar." Thesis, Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/18981.

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Murgatroyd, Jennifer Leigh. "Ancient mortar production in Ostia, Italy : builders and their choices." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:358de9ea-d89b-4053-84c7-0fdc29340bb2.

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The main objective of the research discussed in this thesis was to evaluate the methods and materials used by builders in ancient Ostia to produce mortar for masonry structures. The work was conducted with an eye toward understanding why the ancient builders selected specific materials and employed specific techniques. The research design included scientific investigations of mortar samples from selected structures in Ostia, all dated from brick stamp evidence to the 2nd century CE. The methods employed for this study included thin section petrography, modal analysis via point counting, scanni

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Chowdhury, Alimul Islam. "Applications of nuclear magnetic resonance and ion beam analysis for the investigation of cement-mortar." Thesis, University of Surrey, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368420.

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Zou, Zhihui. "Isogeometric Shell Analysis: Multi-patch Coupling and Overcoming Locking." BYU ScholarsArchive, 2020. https://scholarsarchive.byu.edu/etd/8142.

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The fundamental advantages of applying Isogeometric Analysis (IGA) to shell analysis have been extensively demonstrated across a wide range of problems and formulations. However, a phenomenon called numerical locking is still a major challenge in IGA shell analysis, which can lead to dramatically deteriorated analysis accuracy. Additionally, for complex thin-walled structures, a simple and robust coupling technique is desired to sew together models composed of multiple patches. This dissertation focuses on addressing these challenges of IGA shell analysis. First, an isogeometric dual mortar me

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Van, Pelt Willem Paul. "Pyramids, proteins, and pathogens : a cultural and scientific analysis of Egyptian Old Kingdom pyramid mortars." Thesis, University of Cambridge, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708868.

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Книги з теми "Mortar - Analysis"

author, Fratini Fabio, and Cantisani Emma author, eds. Atlante delle malte antiche in sezione sottile al microscopio ottico: Atlas of the ancient mortars in thin section under optical microscope. Nardini editore, 2014.

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Fetzer, Claude A. Analysis of utilization of grout and grout curtains--Hoover Dam. Concrete and Structural Branch, Division of Research and Laboratory Services, Engineering and Research Center, U.S. Dept. of the Interior, Bureau of Reclamation, 1986.

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Fetzer, Claude A. Analysis of utilization of grout and grout curtains--Heron Dam. Concrete and Structural Branch, Division of Research and Laboratory Services, Engineering and Research Center, U.S. Dept. of the Interior, Bureau of Reclamation, 1986.

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Fetzer, Claude A. Analysis of utilization of grout and grout curtains--Kortes Dam. Concrete and Structural Branch, Division of Research and Laboratory Services, Engineering and Research Center, U.S. Dept. of the Interior, Bureau of Reclamation, 1986.

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Fetzer, Claude A. Analysis of utilization of grout and grout curtains--Hungry Horse Dam. Concrete and Structural Branch, Division of Research and Laboratory Services, Engineering and Research Center, U.S. Dept. of the Interior, Bureau of Reclamation, 1986.

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Fetzer, Claude A. Analysis of utilization of grout and grout curtains--Flaming Gorge Dam. Concrete and Structural Branch, Division of Research and Laboratory Services, Engineering and Research Center, 1986.

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Fetzer, Claude A. Analysis of utilization of grout and grout curtains--Morrow Point Dam. Concrete and Structural Branch, Division of Research and Laboratory Services, Engineering and Research Center, 1986.

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Fetzer, Claude A. Analysis of the Bureau of Reclamation's use of grout and grout curtains--summary. Concrete and Structural Branch, Division of Research and Laboratory Services, Engineering and Research Center, U.S. Dept. of the Interior, Bureau of Reclamation, 1986.

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Fabio, Fratini, and Cantisani Emma, eds. Le malte antiche e moderne: Tra tradizione ed innovazione. Pàtron, 2008.

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International RILEM Workshop on Historic Mortars: Characteristics and Tests (1999 Paisley, Scotland). International RILEM Workshop on Historic Mortars, Characteristics and Tests: Paisley, Scotland, 12th-14th May 1999. RILEM Publications, 2000.

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Частини книг з теми "Mortar - Analysis"

Hesch, Christian, Ustim Khristenko, Rolf Krause, et al. "Frontiers in Mortar Methods for Isogeometric Analysis." In Non-standard Discretisation Methods in Solid Mechanics. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92672-4_15.

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Gong, Xu, Hongfa Yu, and Chengyou Wu. "Study on Deterioration Rule of Water-Binder Ratio on Mechanical Properties and Frost Resistance of Concrete." In Lecture Notes in Civil Engineering. Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-1260-3_42.

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AbstractBased on the rapid freeze-thaw (F-T) cycle test, the changes of relevant indexes (mass, relative dynamic elastic modulus, mechanical properties and thickness of concrete F-T damage layer) of concrete and mortar specimens with three water-binder ratios under F-T cycle was systematically studied. The results show that the quality, relative dynamic elastic modulus and mechanical properties of concrete and mortar decrease with the increase of F-T cycles, the thickness of F-T damaged layer of concrete increases in different degrees. The degree of F-T damage of mortar specimen is obviously l

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Duggal, Prakhar, Bishwajeet Yadav, Harsh Choudhry, and Arpit Garg. "Comparative Analysis of Cement Mortar Roof Tiles Using Agricultural Waste." In Lecture Notes in Civil Engineering. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-7615-3_15.

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Asadi, Iman, Guomin Ji, Gerald Steiner, and Mohammad Hajmohammadian Baghban. "The Effect of Phase Change Materials (PCM) on the Thermophysical Properties of Cement Mortar." In Lecture Notes in Civil Engineering. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-69626-8_37.

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AbstractCement mortar, a fundamental material in construction, requires advancements to enhance its energy efficiency. Phase change materials (PCMs) offer promise in this regard due to their high thermal energy storage capacity. However, challenges persist in integrating PCMs into cement-based materials. Microencapsulated phase change materials (MPCMs) present a solution to these challenges. This study evaluates the impact of MPCMs on the properties of cement mortar with various grades (cement-to-sand ratio of 1:2, 1:3, and 1:4), including mechanical, physical, and thermal characteristics. Thr

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Mohammed Zidan Sameer, V., C. Vyshakh, Geethu Elsa Thomas, and A. S. Sajith. "Numerical Modelling and Analysis of GGBS Mortar for Predicting Strength Parameters." In Lecture Notes in Civil Engineering. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-39663-2_23.

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Kantharia, Mohan, and Pankaj Kumar Mishra. "Experimental Analysis of Flow Value of Cement Mortar with Various Admixtures." In Lecture Notes in Civil Engineering. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6969-6_59.

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Khartode, Bhagyashree, Manisha Shewale, and Nitin Shinde. "Experimental Analysis of Spent Wash as a Waste Material in Mortar." In Advances in Sustainable Concrete for Construction. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-85052-3_8.

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Liu, Nana, Qili Gan, Qin Tao, and Jie Wang. "Research on Materials for Concrete (Mortar) 3D Printing Fabricated Components." In Novel Technology and Whole-Process Management in Prefabricated Building. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-5108-2_28.

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AbstractConcrete (mortar) 3D printing is a new construction process. Due to the lack of sufficient tensile strength and ductility of traditional cement-based printing materials, and the printing process will lead to the stratification of materials, and most 3D printing is contour printing, only after manually filling concrete and steel bars, 3D printed buildings have a certain bearing capacity. This paper discusses the current research progress of concrete (mortar) 3D printing, the requirements of printing materials, as well as the research status and future research direction of bionic materi

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Doddamani, Deepa, and Mangala Keshava. "AAC Block Masonry with Ready Mix Mortar—An Experimental and Numerical Analysis." In Lecture Notes in Civil Engineering. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0362-3_55.

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Shapoval, Mykola, Viktor Virchenko, Maksym Skoryk, and Anatolii Kryvorot. "One-Piston Mortar Pump with Increased Volume Combined Compensator Working Processes Analysis." In Lecture Notes in Civil Engineering. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-42939-3_27.

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Тези доповідей конференцій з теми "Mortar - Analysis"

Benedict, Risque L. "Analysis of a Corrosion Failure on a Prestressed Concrete Cylinder Pipe." In CORROSION 1999. NACE International, 1999. https://doi.org/10.5006/c1999-99564.

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Abstract In the arid or semi-arid western part of the United States, there are special parameters that may require investigation to determine whether the right-of-way soils are corrosive to cementitious-coated pipe. Cyclical wetting and drying, especially in arid environments, can cause an increase in chloride concentration in the capillary system of mortar by a factor of at least five. Under the right circumstances, with cyclical wetting and drying, a soil chloride content of 140 mg/kg will exceed the corrosion threshold of 700 mg/kg and initiate corrosion on prestress wire. Several actual fi

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Agbakansi, Stanley C., Farzaneh Nosouhian, Scott Lehman, and Christopher L. Alexander. "Ductile Iron Wastewater Force Mains Failure Analysis and Service Life Estimation." In CORROSION 2021. AMPP, 2021. https://doi.org/10.5006/c2021-16976.

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Abstract Unexpected failures of mortar-lined ductile iron force mains have occurred at unspecified high points due to internal corrosion aggravated by microbiological activity. To avoid unexpected failures in the future, a mechanistic understanding of the microbiologically influenced corrosion and degradation and their rates leading to failure is required. In this work, a detailed failure analysis was performed to uncover the mechanisms and typical rates of internal corrosion at unknown high points in mortar-lined ductile iron pipes (MLDIP). A literature review was conducted to identify existi

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Cabrini, Marina, Sergio Lorenzi, Paolo Marcassoli, and Tommaso Pastore. "Corrosion Enhanced Erosion of Steel in Fresh Concrete." In CORROSION 2010. NACE International, 2010. https://doi.org/10.5006/c2010-10380.

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Abstract This paper deals with erosion-corrosion of steel in contact with flowing fresh concrete. Results of tests performed in fresh mortar on rotating cylindrical and disk electrodes are reported. The fresh mortar was manufactured by using chemical admixtures in order to retain constant workability during long time tests. Electrochemical and weight loss tests were conducted. SEM analysis was carried out to evaluate damage morphology. Damage mechanisms and corrosion behavior are discussed. Effect of rotating speed, potential and steel hardness has been considered.

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Ruiz-Alvarez, Alex. "Root Cause Analysis of a 30-Inch Water Concrete Reinforced Pipe Rupture." In CORROSION 2019. NACE International, 2019. https://doi.org/10.5006/c2019-13060.

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Abstract With over 7 decades of wide scale use of concrete reinforced pipe within infrastructure and water utilities in the United States, the overall experience has generally been good. However, problems can occur intermittently and drastically affect its performance. One such high profile and never the less recurring problem associated with concrete reinforced pipe has been discussed in this paper. In 2012 a rupture occurred on a 30-inch concrete reinforced water main pipe in the Northeastern United States. The 30-inch water main is a prestressed concrete cylinder pipe (PCCP). PCCP is a comp

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Lazzari, L., M. Ormellese, and E. Redaelli. "Multi-Linear-Reference-Electrode for Localized Corrosion Monitoring." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07389.

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Abstract In order to monitor in-time the occurrence of localized corrosion in concrete structures (viaduct, aqueduct, PCCP, pre-stressed and post-tensioned structures), a multi-reference electrode was proposed and studied, consisting of a series of continuous metallic wires able to measure the potential of carbon steel rebars and tendons. Because chloride-induced pitting may provoke hydrogen embrittlement of high strength steel, an early detection of corrosion initiation is very important to avoid such brittle fracture. Laboratory tests on mortar samples simulating post-tensioned tendons corro

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Dockrill, Bradley J., and Warren K. Green. "Case Studies of Concrete Repair and Strengthening of Coal Storage Silos in Eastern Australia." In CORROSION 2011. NACE International, 2011. https://doi.org/10.5006/c2011-11014.

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Abstract Two 3000-ton capacity reinforced concrete coal silos and one 5000-ton capacity reinforced concrete coal silo in the Hunter Valley, New South Wales, Australia were deteriorated due to corrosion of steel reinforcement. The storage silos are a critical asset necessary to facilitate the efficient delivery of coal. Serious concrete deterioration of the silos and corrosion to external post-tensioned cables had the potential to catastrophically interrupt the supply chain. A risk and structural assessment of the silos was undertaken and a condition investigation completed. A remedial option s

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Presuel-Moreno, Francisco J., and James Zielske. "An Experimental Approach for Evaluating Marine Exposed Reinforced Concrete Substructures." In CORROSION 2011. NACE International, 2011. https://doi.org/10.5006/c2011-11016.

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Abstract Simulated reinforced concrete substructure element (piling) specimens were fabricated, cured for twelve months and exposed partially submerged in natural sea water. The specimens were made of mortar with 20% Fly Ash and a low water to cement ratio, simulating a FDOT Type V concrete. Exposure involved, first, intermittent spraying of the above waterline zone to simulate splash and spray and, second, electrically connecting the embedded reinforcement to submerged bare steel bars to affect a potential gradient from relatively negative in the submerged zone to positive in the atmospheric

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Bavarian, Bezad, Lisa Reiner, and Chong Yeob Kim. "Corrosion Protection of Steel Rebar in Concrete by Migrating Corrosion Inhibitors." In CORROSION 2003. NACE International, 2003. https://doi.org/10.5006/c2003-03364.

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Abstract Laboratory evaluations were performed to determine the effectiveness of migrating corrosion inhibitor (MCI) for reinforced concrete. In this study, concrete densities and application methods were compared. Bode and Nyquist plots showed high resistance polarization resistance values for concrete treated with inhibitor. XPS analysis verified the presence of MCI and chloride molecules on the steel rebar surfaces, and XPS depth profiling showed a 100 nm amine-rich layer (inhibitor) and chloride ions on the rebar confirming that MCI had migrated through the concrete coverage to suppress ch

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Scali, Mauro, Paul Scheiner, Wilkins Aquino, Rasko Ojdrovic, and Mehdi Zarghamee. "Analysis and Performance of PCCP Mortar Coating." In Pipeline Engineering and Construction International Conference 2003. American Society of Civil Engineers, 2003. http://dx.doi.org/10.1061/40690(2003)115.

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Volskis, Héctor, Bruna Loiola, Francesco Scofano Neto, and Rodrigo Guedes. "NUMERICAL THERMAL ANALYSIS OF AN 81MM MORTAR." In 19th Brazilian Congress of Thermal Sciences and Engineering. ABCM, 2022. http://dx.doi.org/10.26678/abcm.encit2022.cit22-0399.

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Звіти організацій з теми "Mortar - Analysis"

Jablonski, J., J. A. Cordes, M. Hespos, D. Geissler, and M. Carlini. Critical Flaw Estimate and Flaw Analysis of 81-mm M821A1 Mortar Projectile. Defense Technical Information Center, 2010. http://dx.doi.org/10.21236/ada526509.

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Lau, D. L., and L. C. Ng. Analysis of total least squares in estimating the parameters of a mortar trajectory. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/96640.

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Bigl, Matthew, Samuel Beal, and Charles Ramsey. Determination of residual low-order detonation particle characteristics from IMX-104 mortar rounds. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/42163.

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The environmental fate and transport of energetic compounds on military training ranges are largely controlled by the particle characteristics of low-order detonations. This study demonstrated a method of command detonation, field sampling, laboratory processing, and analysis techniques for characterizing low-order detonation particles from 60 mm and 81 mm mortar rounds containing the insensitive munition formulation IMX-104. Particles deposited from three rounds of each caliber were comprehensively sampled and characterized for particle size, energetic purity, and morphology. The 60 mm rounds

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Bigl, Matthew, Samuel Beal, and Charles Ramsey. Determination of residual low-order detonation particle characteristics from Composition B mortar rounds. Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/45260.

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Empirical measurements of the spatial distribution, particle-size distribution, mass, morphology, and energetic composition of particles from low-order (LO) detonations are critical to accurately characterizing environ-mental impacts on military training ranges. This study demonstrated a method of generating and characterizing LO-detonation particles, previously applied to insensitive munitions, to 81 mm mortar rounds containing the conventional explosive formulation Composition B. The three sampled rounds had estimated detonation efficiencies ranging from 64% to 82% as measured by sampled res

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Clausen, Jay, Samuel Beal, Thomas Georgian, Kevin Gardner, Thomas Douglas, and Ashley Mossell. Effects of milling on the metals analysis of soil samples containing metallic residues. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41241.

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Metallic residues are distributed heterogeneously onto small-arms range soils from projectile fragmentation upon impact with a target or berm backstop. Incremental Sampling Methodology (ISM) can address the spatially heterogeneous contamination of surface soils on small-arms ranges, but representative kilogram-sized ISM subsamples are affected by the range of metallic residue particle sizes in the sample. This study compares the precision and concentrations of metals in a small-arms range soil sample processed by a puck mill, ring and puck mill, ball mill, and mortar and pestle prior to analys

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Tibbetts, Caitlin, Dylan Scott, Jameson Shannon, and Jeb Tingle. Sliver Spall Mitigation Field Investigation, Laboratory Study, and Mixture Proportioning Analysis. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/48756.

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A combined field and laboratory study was conducted to identify factors contributing to sliver spall of concrete pavements and recommend avenues for prevention. In this study, spall density maps of eight airfields were created, and cores were taken for petrographic analysis. A companion laboratory study evaluated nondestructive testing equipment for identifying concrete prone to sliver spalling. Concrete mix designs with good and poor performance were analyzed for trends in mixture proportioning and aggregate gradation. Spall density mapping indicated sliver spalling was more likely to occur o

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Condon, John A., and Michael S. Hollis. Dynamic Analyses of the Mortar Dragster Tab Mechanism. Defense Technical Information Center, 1998. http://dx.doi.org/10.21236/ada345815.

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Wei, Fulu, Ce Wang, Xiangxi Tian, Shuo Li, and Jie Shan. Investigation of Durability and Performance of High Friction Surface Treatment. Purdue University, 2021. http://dx.doi.org/10.5703/1288284317281.

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The Indiana Department of Transportation (INDOT) completed a total of 25 high friction surface treatment (HFST) projects across the state in 2018. This research study attempted to investigate the durability and performance of HFST in terms of its HFST-pavement system integrity and surface friction performance. Laboratory tests were conducted to determine the physical and mechanical properties of epoxy-bauxite mortar. Field inspections were carried out to identify site conditions and common early HFST distresses. Cyclic loading test and finite element method (FEM) analysis were performed to eva

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Katulka, G., R. Hall, B. Topper, and N. Hundley. Design and Analysis of Embedded Antennas for 60-mm Mortars. Defense Technical Information Center, 2008. http://dx.doi.org/10.21236/ada484807.

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Arnott, Richard, and Joseph Stiglitz. The Basic Analytics of Moral Hazard. National Bureau of Economic Research, 1988. http://dx.doi.org/10.3386/w2484.

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