Relevant bibliographies by topics / Ultrasonic Pulse Velocity Test (UPV)

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
  5. Reports

Academic literature on the topic 'Ultrasonic Pulse Velocity Test (UPV)'

Author: Grafiati
Published: 5 June 2025
Last updated: 2 August 2025

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Journal articles on the topic "Ultrasonic Pulse Velocity Test (UPV)"

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Said, AbdulMuttalib I., and Baqer Abdul Hussein Ali. "Assessment of Concrete Compressive Strength by Ultrasonic Non-Destructive Test." E3S Web of Conferences 318 (2021): 03004. http://dx.doi.org/10.1051/e3sconf/202131803004.

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This paper has carried out an experimental program to establish a relatively accurate relation between the ultrasonic pulse velocity (UPV) and the concrete compressive strength. The program involved testing concrete cubes of (100) mm and prisms of (100×100×300) cast with specified test variables. The samples are tested by using ultrasonic test equipment with two methods, direct ultrasonic pulse (DUPV) and surface (indirect) ultrasonic pulse (SUPV) for each sample. The obtained results were used as input data in the statistical program (SPSS) to predict the best equation representing the relati
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Rizkiasari, Anggia Eta, and Abdul Rouf. "Analisis Hubungan Kecepatan Gelombang Dengan Kuat Tekan Beton Menggunakan Metode UPV." IJEIS (Indonesian Journal of Electronics and Instrumentation Systems) 10, no. 1 (2020): 11. http://dx.doi.org/10.22146/ijeis.33414.

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Until now the use of concrete as a building material is still widely used for building structures. It is important to do concrete compressive strength testing as one of the factors to know the quality of a concrete. NDT (Non-Destructive Testing) is a method of solid quality testing without damaging the object. Testing with the NDT method is considered more efficient than the destructive test method. One method for performing NDT testing is by utilizing UPV (Ultrasonic Pulse Velocity).UPV is a method for estimating concrete compressive strength based on the ultrasonic pulse velocity relationshi
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Araújo, Rafael Campos de Alencar, William Menezes da Silva, Tiago Ancelmo de Carvalho Pires, and José Jéferson do Rêgo Silva. "Compressive strength assessment of high strength concrete after fire using ultrasonic test method." Research, Society and Development 11, no. 11 (2022): e63111132719. http://dx.doi.org/10.33448/rsd-v11i11.32719.

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This paper aims to evaluate the non-destructive ultrasonic pulse velocity (UPV) test method for determining the compressive strength of high strength of concrete (HSC) after fire. The compressive strength was determined through destructive cylinder test and by measuring ultrasonic pulse velocity. A total of 10 equations that relate compressive strength of concrete to UPV were evaluated in a total of 20 concrete samples. None of the equations were well suited for the case of HSC. The paper proposed a new equation and the UPV test showed suitable to assessment post-fire damaged HSC.
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Shi, Mo, Deok Hwa Jeong, Seung Woo Lee, and Yeol Choi. "Relationship between UPV and Strength of Rubber-Concrete." Defect and Diffusion Forum 382 (January 2018): 225–29. http://dx.doi.org/10.4028/www.scientific.net/ddf.382.225.

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The present study is performed for investigation of the correlation between UPV value and strength of rubber-concrete. Compressive and splitting tensile strengths of concrete containing waste tire-rubber particles by four different volume contents were investigated using ultrasonic pulse velocity (UPV) test and direct destructive tests. Test results showed that ultrasonic pulse velocity test can be successfully estimated to the strength of rubber-concrete as used in normal concrete.
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Ongpeng, Jason Maximino Co. "ULTRASONIC PULSE VELOCITY TEST OF REINFORCED CONCRETE WITH INDUCED CORROSION." ASEAN Engineering Journal 7, no. 2 (2017): 9–17. http://dx.doi.org/10.11113/aej.v7.15490.

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Non-destructive test has been applied to measure damage in structures. Common structures are assessed with the use of practical and easy application of ultrasonic pulse velocity (UPV). In this paper, the damage brought by corrosion was investigated using Proceq Punditlab having 54 kHz transducers oriented in direct transmission under the UPV. Fifty-four reinforced concrete of size 150 mm x 250 mm x 300 mm with two 10mm diameter reinforcing bars (Grade 40) and one 6mm diameter stainless steel bar (Type 304) was cast and tested. It had varying water cement ratio of 45%, 50%, and 55%with two cond
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Azhar Darujati, Sartika Nisumanti, and Ghina Amalia. "ANALISIS KUAT TEKAN DAN ULTRASONIC PULSE VELOCITY (UPV TEST) PADA MUTU BETON K 350 MENGGUNAKAN BETON SISA PENGUJIAN SEBAGAI SUBSTITUSI AGREGAT KASAR." PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa 12, no. 1 (2023): 30–35. http://dx.doi.org/10.22225/pd.12.1.5890.30-35.

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Salah satu upaya untuk mengurangi eksploitasi batuan alam sebagai bahan penyusun beton adalah memanfaatkan beton sisa pengujian. Beton sisa pengujian yang digunakan adalah beton sisa atau limbah dari hasil pengujian laboratorium sebagai pengganti agregat kasar dalam pembuatan beton baru. Tujuan penelitian ini adalah untuk mengetahui pengaruh dari penggunaan beton sisa pengujian sebagai substitusi agregat kasar dalam campuran beton terhadap nilai kuat tekan dan kepadatan melalui uji ultrasonic pulse velocity (UPV). Metode penelitian yang digunakan pada penelitian ini adalah metode eksperimental
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Vajanam, Kanchan D., and M. V. Waghmare. "Ultrasonic Pulse Velocity Test on Hybrid Fiber Reinforced Concrete." SAMRIDDHI : A Journal of Physical Sciences, Engineering and Technology 14, Spl-2 issu (2022): 229–34. http://dx.doi.org/10.18090/samriddhi.v14spli02.5.

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Concrete is a material of high importance in infrastructure and development projects. Concrete is characterized as a brittle material. In order to minimise the brittle failure, it is beneficial to add the fibers to the concrete mix without compromising the quality of concrete. The length of polypropylene fibers (PPF) and steel fiber (SF) used in concrete mixtures are 50mmand 35mmrespectively. The aimof this paper is to learn the quality of concrete and dynamic modulus of elasticity by using Ultrasonic Pulse Velocity (UPV). The percentages of polypropylene fiber are 0%, 0.3%, 0.6%, 0.7%, 1% and
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Darmono, Darmono, Maris Setyo Nugroho, Slamet Widodo, and Faqih Ma’arif. "ANALISIS PENURUNAN KUALITAS MUTU KAYU PADA BANGUNAN CAGAR BUDAYA DENGAN METODE NON DESTRUCTIVE TEST (Studi Kasus Bangunan Cagar Budaya Masjid Gedhe Mataram Daerah Istimewa Yogyakarta)." INERSIA: lNformasi dan Ekspose hasil Riset teknik SIpil dan Arsitektur 16, no. 2 (2020): 191–99. http://dx.doi.org/10.21831/inersia.v16i2.36905.

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ABSTRAKPenelitian bertujuan untuk mengetahui mechanical properties material kayu Bangunan Cagar Budaya dengan non-destructive test. Penelitian ini menggunakan metode pengujian lansung dilapang menggunakan Ultrasonic Pulse Velocity (UPV). Terdapat dua variable yang digunakan yaitu kolom cacat dan kolom utuh untuk mengetahui perbedaan nilai cepat rambat gelombang. Jumlah sampel yang digunakan sebanyak enam buah dengan pengambilan data masing-masing sampel sebanyak lima kali. Hasil pengujian menunjukkan bahwa nilai kadar air dan berat jenis kayu sebesar 15,03% dan 0,62. Sedangkan hasil pengujian
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GODINHO, J. P., T. F. DE SOUZA JÚNIOR, M. H. F. MEDEIROS, and M. S. A. SILVA. "Factors influencing ultrasonic pulse velocity in concrete." Revista IBRACON de Estruturas e Materiais 13, no. 2 (2020): 222–47. http://dx.doi.org/10.1590/s1983-41952020000200004.

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Abstract The hydration process of Portland cement triggers reactions of stabilization of minerals from the contact of the clinker with water, which is the Hydrated Calcium Silicate (C-S-H), the Etringite (3CaO.Al2O3.3CaSO4.32H2O) and the Portlandite (Ca(OH)2). In order to understand the effects of the evolution of hydration in cement, it is possible to apply non-destructive tests. In this context, the objective of this work is to evaluate the influence of the type of cement, the curing age, of the format and humidity of the test specimens of concrete in the ultrasonic pulse velocity (UPV). In
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Lizarazo Marriaga, Juan Manuel, and José Gabriel Gómez Cortés. "Developing an artificial neural network model for predicting concrete’s compression strength and electrical resistivity." Ingeniería e Investigación 27, no. 1 (2007): 11–18. http://dx.doi.org/10.15446/ing.investig.v27n1.14771.

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The present study was conducted for predicting the compressive strength of concrete based on unit weight ultrasonic and pulse velocity (UPV) for 41 different concrete mixtures. This research emerged from the need for a rapid test for predicting concrete’s compressive strength. The research was also conducted for predicting concrete’s electrical resistivity based on unit weight ultrasonic, pulse velocity (UPV) and compressive strength with the same mixes. The prediction was made using simple regression analysis and artificial neural networks. The results revealed that artificial neural networks
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Dissertations / Theses on the topic "Ultrasonic Pulse Velocity Test (UPV)"

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Lau, Connie K. Y. "Non-destructive evaluation with ultrasonic pulse velocity (UPV) in concrete structure." access abstract and table of contents access full-text, 2005. http://libweb.cityu.edu.hk/cgi-bin/ezdb/dissert.pl?msc-ap-b21174441a.pdf.

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Thesis (M.Sc.)--City University of Hong Kong, 2005.<br>At head of title: City University of Hong Kong, Department of Physics and Materials Science, Master of Science in materials engineering & nanotechnology dissertation. Title from title screen (viewed on Sept. 1, 2006) Includes bibliographical references.
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Mong, Seng Ming. "Non-destructive evaluation with ultrasonic pulse velocity (UPV) in concrete structure." access abstract and table of contents access full-text, 2005. http://libweb.cityu.edu.hk/cgi-bin/ezdb/dissert.pl?msc-ap-b21175032a.pdf.

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Thesis (M.Sc.)--City University of Hong Kong, 2005.<br>At head of title: City University of Hong Kong, Department of Physics and Materials Science, Master of Science in materials engineering & nanotechnology dissertation. Title from title screen (viewed on Sept. 4, 2006) Includes bibliographical references.
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Chan, Denny Yuk. "Structural integrity assessment of cantilevered type concrete structures by instrumented impact hammer (IIH) technique & ultrasonic pulse velocity (UPV) technique." access abstract and table of contents access full-text, 2005. http://libweb.cityu.edu.hk/cgi-bin/ezdb/dissert.pl?msc-ap-b21174088a.pdf.

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Thesis (M.Sc.)--City University of Hong Kong, 2005.<br>At head of title: City University of Hong Kong, Department of Physics and Materials Science, Master of Science in materials engineering & nanotechnology dissertation. Title from title screen (viewed on Aug. 31, 2006) Includes bibliographical references.
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Čaněk, Michal. "Ultrazvukové měření velkoformátových obkladů." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2021. http://www.nusl.cz/ntk/nusl-433441.

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The diploma thesis deals with influence of the used adhesive to large format tiles properties after installation. Properties on large format tiles were monitored by ultrasonic pulse velocity method. Hydraulic setting adhesives were tested in second part. Strength and modulus of elasticity were tested. The development of shrinkage over time was also monitored. The results were summarized in tabular and graphical form and were examined by simple statistical analysis to determine resulting conclusions.
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Deniz, Saygin. "Determination Of Relations Between Elastic Properties Of Cement Mortars By Using Destructive And Nondestructive Methods." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/2/12611544/index.pdf.

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The measurement and monitoring of the elastic properties of cement-based materials is very important for assessing their quality, integrity and performance. Due to the nonhomogeneous and time-dependent characteristics of these materials, it is difficult to observe the developments in elastic properties with traditional destructive methods. The aim of this thesis is to determine and monitor elastic properties of mortar specimens made with different cements by using resonant frequency and ultrasonic pulse velocity test methods, and to obtain relationships between these elastic properties. For
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Kozáček, Vojtěch. "Experimentální stanovení závislosti parametrů NDT a pevnosti v tlaku betonu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409957.

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The diploma thesis deals with non-destructive testing of concrete as well as with the relationship between determined parameters and the compressive strength of concrete. The thesis is mainly focused on the ultrasonic pulse velocity method and the rebound hammer test. The experimental part of the thesis describes non-destructive tests performed on concrete blocks. The compressive strength was tested on the drill cores taken from the concrete blocks. The aim of this thesis is to find regression models of the relationship between the compressive strength and non-destructive parameters, and the s
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Christianto, Heru Ari. "Effect Of Chemical And Mineral Admixtures On The Fresh Properties Of Self Compacting Mortars." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12605322/index.pdf.

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Fresh properties of mortars are important factors in altering the performance of self compacting concrete (SCC). Measurement of the rheological properties of the fine mortar part of concrete is generally used in the mix design of SCC. It can be stated that SCC rheology can be optimized if the fine mortar part of concrete is designed properly. However, measurement of the rheological properties is often impractical due to the need for complex equipment. Therefore, more practical methods of assessing mortar workability are often preferred. In this study, four mineral admixtures, three supe
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Franceschelli, Stefano. "Experiments on Chinese historical brick and masonry to evaluate their physical and mechanical properties after freeze-thaw cycles." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.

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Ultrasonic Pulse Velocity (UPV) and Rebound test as non-destructive techniques may effectively contribute to in situ analysis of bricks and masonries elements for the restoration, rehabilitation and strengthening of historic buildings. Fired-clay bricks were commonly used in buildings in ancient China, but there is few knowledge on their behaviour in environmental conditions. Moisture is one of the main factors that cause deterioration in historic building, in particular in areas with natural freeze-thaw cycles. In this work, two laboratory experiments were carried out, at Tongji University
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Jindrová, Barbora. "Možnosti stanovení mrazuvzdornosti betonu v konstrukci." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409955.

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The diploma thesis deals with different methods of determining levels of degradation of concrete due to freezing, also considering the options of freeze thaw resistance determination in structure. At first the properties of concrete and possible mechanisms of concrete degradation are described – mainly the effects of freezing water in the inner structure and of the combination of freezing water and de-icing chemicals on the surface. Principle and properties of air-entrained concrete are also mentioned. An overview of the approaches that current standards use to determine the freeze-thaw resist
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Hoduláková, Michaela. "Experimentální ověření modulu pružnosti v tlaku jemnozrnných kompozitů na bázi silikátových pojiv." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265508.

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Since their inception, building materials are constantly improving. New ways to explore and improve the material's properties are constantly investigated (especially to improve the mechanical and deformation characteristics of the materials). This thesis is focused on identifying and comparing values of the modulus of elasticity of fine-grained composites. These features are compared with respect to water cement ratio, ageing and compressive strength of the investigated materials. Afterwards, the values of the modulus of elasticity are studied in the relation to the tested materials.
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Book chapters on the topic "Ultrasonic Pulse Velocity Test (UPV)"

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Basnayake, B. M. K. L. K., A. R. M. H. B. Amunugama, and U. B. Attanayake. "Detection of Concrete Surface Crack Depth Using Ultrasonic Pulse Velocity (UPV) Methods." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2886-4_13.

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Hamzah, Noorfaizah, Nur’Ain Mat Yusof, and Wan Muhammad Muaz Wan Hassan. "Characterization of Weathered Limestone Rocks and the Correlation with the Engineering Properties through Ultrasonic Pulse Velocity (UPV) Testing." In Advances in Engineering Research. Atlantis Press International BV, 2024. http://dx.doi.org/10.2991/978-94-6463-500-3_3.

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Benaboud, S., M. Takarli, F. Allou, et al. "Efficiency of Ultrasonic Pulse Velocity Test in the Determination of Residual Asphalt Mix Pavement Properties." In RILEM Bookseries. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-46455-4_86.

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Sahoo, Kamakshya Prasad, Himmi Gupta, and Sanjay K. Sharma. "Development of Correlation Between Ultrasonic Pulse Velocity and Rebound Hammer Test Results for Condition Assessment of Concrete Structures for Sustainable Infrastructure Development." In Proceedings of International Conference on Innovative Technologies for Clean and Sustainable Development (ICITCSD – 2021). Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-93936-6_11.

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Bogas J. Alexandre, Gomes M. Glória, Real Sofia, and Pontes Jorge. "Ultrasonic pulse velocity used to predict the compressive strength of structural sand lightweight concrete." In Construction Materials and Structures. IOS Press, 2014. https://doi.org/10.3233/978-1-61499-466-4-293.

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This paper aims at evaluating the compressive strength of structural sand lightweight aggregate concrete (LWC) by the non-destructive ultrasonic pulse velocity method. To this end, a comprehensive experimental study was carried out involving more than 70 different compositions tested between 3 and 180 days with mean compressive strengths ranging from about 30 to 80 MPa and density classes from D1.6 to D2.0. The influence of several factors on the relation between the ultrasonic pulse velocity (UPV) and compressive strength was examined, including the type and binder content, type and volume of
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Papworth, F., David Corbett, and Reuben Barnes. "In-situ concrete strength assessment based on Ultrasonic Pulse Velocity (UPV), rebound, cores and the SonReb method." In Concrete Repair, Rehabilitation and Retrofitting IV. CRC Press, 2015. http://dx.doi.org/10.1201/b18972-36.

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Hayrullah Sevinç, Ahmet, Muhammed Yasin Durgun, and Hayriye Hale Aygün. "Evaluation of Waste Tag Pins as Fibers in Gypsum Plasters." In Fiber-Reinforced Composites - Recent Advances, New Perspectives and Applications [Working Title]. IntechOpen, 2024. http://dx.doi.org/10.5772/intechopen.1004216.

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This study deals with the usability of tag pins on gypsum-based products, which are used to attach tags on goods such as textile products. The primary motivation of the study is that the tag pins become waste after the sale of the product and this waste is generally produced from polypropylene (PP), which is also used in fiber production. The study used waste tag pins in three different lengths (0.5, 1.0, and 1.5 mm) and at three different fiber volumes such as 5, 10, and 15%. Thus, 40 × 40 × 160 mm sized prismatic gypsum samples were produced and unit weight, ultrasonic pulse velocity (UPV),
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Patil, Supriya, A. K. Kasthurba, and Mahesh Patil. "Evaluation of heritage stone deterioration through non-destructive techniques (ultrasonic pulse velocity, rebound hammer test, SEM, and X-ray diffraction)." In Diagnosis of Heritage Buildings by Non-Destructive Techniques. Elsevier, 2024. http://dx.doi.org/10.1016/b978-0-443-16001-1.00020-6.

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Mukherjee, Shaswata, and Saroj Mondal. "Self-Healing Properties of Conventional and Fly Ash Cementitious Mortar, Exposed to High Temperature." In Emerging Design Solutions in Structural Health Monitoring Systems. IGI Global, 2015. http://dx.doi.org/10.4018/978-1-4666-8490-4.ch001.

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Direct stress and sub-stress caused by fire, temperature variation and external loading in a structure are most important for the development of cracks. The chemical reactions of natural healing in the matrix was not been established conclusively. The most significant factor that influences the self-healing is the precipitation of calcium carbonate crystals on the crack surface. The mechanism which contribute autogenic healing are: (a) Continued hydration of cement at cracked surface as well as continued hydration of already formed gel and also inter-crystallization of fractured crystals; (b)
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Conference papers on the topic "Ultrasonic Pulse Velocity Test (UPV)"

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Lin, Wei-Ming, and Cliff C. Rau. "Steel Corrosion Study of Penghu Cross Sea Bridge." In CORROSION 1989. NACE International, 1989. https://doi.org/10.5006/c1989-89125.

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Abstract Penghu Cross Sea Bridge, The most important highway bridge in Pescadores, which connect the island of shiyeu and paisha since 1971, is located at 23°40' N, 119° 32' E, and the total length of the bridge is about 2.5Km. It is found that' the bridge was under severe corrosion after 5 years sevice, and the bridge was reconstructed since 1984. The objective of this study is to find the main reason that caused corrosion. Field survey and lab tests of cored specimens of PC and RC beams were conducted in this study, and also the previous record of regular check was examined. NDT such as test
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SUNARNO, Y. "Ultrasonic pulse velocity (UPV) and initial rate of water absorption (IRA) of foam concrete containing blended cement." In Advanced Topics in Mechanics of Materials, Structures and Construction. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902592-59.

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Abstract. The adverse environmental effects caused by cement production activities could be minimized by reducing the use of cement in the concrete mix, replacement with eco-friendly materials, and making low-unit weight cement-derived products. During the cement production activities, fly ash can also be used by mixing it in form of Portland Composite Cement (PCC)/blended cement products or directly in the concrete mixing process. Furthermore, in low-unit weight concrete, foam concrete is usually obtained using an agent that forms random air bubbles in the cement paste and is applied in const
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Shafiei, Aref, Kyle A. Riding, Robert J. Peterman, et al. "Suitability and Variability of Non-Destructive Testing Methods for Concrete Railroad Tie Inspection." In 2016 Joint Rail Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/jrc2016-5776.

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Concrete railroad ties have been used in increasing numbers in the U.S., particularly in high-speed rail, heavy-haul freight lines, and new track construction because of their reduced deflections, durability, and competitive cost. In-track assessment of concrete railroad ties can be a challenge, however because many exterior tie surfaces are covered by tie pads and rail or ballast. This damage may include concrete section wear from abrasion, cracking, or crumbling, or other types of defects. Damage internal to the concrete can also not be seen visually. The time and cost needed to inspect thes
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Romanowski, Niklas, Adonis Ichim, and Catalin Teodoriu. "Investigations on Oilwell Cement Strength Response to Ultrasonic Measurements in Presence of Additives." In ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/omae2017-62393.

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Well cements are an important aspect of wellbore integrity and recent investigations focus on describing the cement lifetime using, when possible, non-destructive tests like ultrasonic measurements. However, the original API and ASTM testing standards were based on destructive mechanical testing of cements, leading to the decision to investigate the backward and forward compatibility between ultrasonic measurements and mechanical testing, which makes the subject of this work. Ultrasonic cement measurement became a very popular method to assess the mechanical properties of the cement in a non-d
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Yin, T. "Higher-order effects of amplitude-modulation vibro-acoustic technique for characterization thermal damages in cement-based material." In Structural Health Monitoring. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902455-33.

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Abstract. This paper proposes a new amplitude-modulation vibro-acoustic (AMVA) technique to detect thermal damage in pristine graphene (PRG) mortar materials. A new third-order solution for an amplitude-modulated low-frequency pump wave and a high-frequency probe wave in infinite isotropic material is presented. The solution includes higher-order sidebands generated by intrinsic and acquired nonlinearities. A nonlinear parameter is defined according to the third-order solution to assess the different levels of thermal damage. The experimental study demonstrates the sensitivity and feasibility
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Raju, Thushara, Namitha S, Muhammed Nabil K, et al. "Effect of alkali content and slag content on the fresh and hardened properties of air-cured alkali activated mortar containing fly ash." In International Web Conference in Civil Engineering for a Sustainable Planet. AIJR Publisher, 2021. http://dx.doi.org/10.21467/proceedings.112.48.

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Alkali Activated Material (AAM) is introduced as a pioneering construction material in the construction diligence to trim down the utilization of Ordinary Portland Cement (OPC) and to curtail the amount of carbon dioxide released during the production of OPC. Modestly refined industrial by products or natural materials rich in alumino silicates are the binding agents used in AAM. Generally, heat curing is needed for the alkali activated mortar to achieve the required hardened properties and this difficulty can be overcome by adding slag to the mix. In this experimental analysis, the alkali act
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Parida, F. C., S. K. Das, A. K. Sharma, et al. "Sodium Exposure Tests on Limestone Concrete Used as Sacrificial Protection Layer in FBR." In 14th International Conference on Nuclear Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/icone14-89593.

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Hot sodium coming in contact with structural concrete in case of sodium leak in FBR system cause damage as a result of thermo-chemical attack by burning sodium. In addition, release of free and bound water from concrete leads to generation of hydrogen gas, which is explosive in nature. Hence limestone concrete, as sacrificial layer on the structural concrete in FBR, needs to be qualified. Four concrete blocks of dimension 600mm × 600mm × 300mm with 300mm × 300mm × 150mm cavity were cast and subjected to controlled sodium exposure tests. They have composition of ordinary portland cement, water,
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Verma, Anita, Deepanshu Shirole, and Sankhaneel Sinha. "Evaluation of the Sensitivity of Compressional Waves to Assess the Presence of a Macroscopic Flaw in a Pre-Fractured Agaria Marble Specimen." In 58th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2024. http://dx.doi.org/10.56952/arma-2024-0380.

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ABSTRACT: Rock mass inherently contain various types of discontinuities that can be accessed using seismic signals. To investigate the effect of flaw on seismic signals, laboratory-based experiments were conducted in this study utilizing high-frequency seismic P-wave (ultrasonic) signals, with the aim of gaining further insights into how the presence of these flaws affect the ultrasonic waveforms. For this purpose, prismatic Agaria marble specimens (dimensions of 151 mm × 76 mm × 26 mm) containing a pre-existing flaw were employed. A novel multi-channel test setup was developed to enable the t
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M. S, Arya. "A Study on Cockle Seashell and Silicafume in Concrete." In The International Conference on scientific innovations in Science, Technology, and Management. International Journal of Advanced Trends in Engineering and Management, 2023. http://dx.doi.org/10.59544/lqia6252/ngcesi23p3.

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Efforts are made to incorporate by-products and their wastes from different industries as alternatives in concrete to reduce the need of virgin materials for construction purpose. Cement production is highly intensive and production cause tons of carbon dioxide (CO2) emission every year. To overcome this crisis, pozzolanic material such as silicafume is deployed. Also, the exploitation of nature by over consumption of aggregate is increasing day by day. Fishery waste such as cockle seashell which is usually dumped or landfilled without any re-use value can be used as a partial solution for eco
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Mohammed, T. U., S. Ahsan, M. N. H. Khan, M. Tanveer, and M. R. Reza. "TREATMENTS FOR THE IMPROVEMENT OF RECYCLED BRICK AGGREGATE." In Sixth International Conference on Sustainable Construction Materials and Technologies. Coventry University, 2024. http://dx.doi.org/10.18552/2024/scmt/118.

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A study was conducted to improve the quality of recycled brick aggregate (RBA) by different treatments for use in concrete as coarse aggregates. For this, demolished concrete blocks were collected and crushed into pieces as coarse aggregate (5 mm to 25 mm). For the improvement of RBA, three types of coatings were used, such as cement paste coating, fly ash plus hydrated lime coating, and slag plus hydrated lime coating. Both single layer coating and double layer coating were applied on RBA. The properties of RBA and coated RBA, such as specific gravity, absorption capacity, and abrasion were i
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Reports on the topic "Ultrasonic Pulse Velocity Test (UPV)"

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Hajj, Ramez, Marshall Thompson, Renan Santos Maia, et al. Updates to Mechanistic-Empirical Design Inputs for Illinois Flexible Pavements. Illinois Center for Transportation, 2024. http://dx.doi.org/10.36501/0197-9191/24-010.

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This study reviews the Illinois Department of Transportation’s full-depth asphalt, limiting strain criterion, and asphalt over rubblized concrete design procedures, considering technological advancements in hot-mix asphalt—namely, the increased use of recycled materials and modified asphalt binders. The researchers evaluated the current |E*| algorithm by conducting laboratory tests with four mix designs and seven asphalt binders of different Superpave performance grades. They compared predictive models, including the current Illinois modulus algorithm as well as the Witczak, Hirsch, and newly
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