The Reliable Concrete Compression Strength Assessment by SCHMIDT Hammer for Different Concrete Grades

Elrazek, Mostafa Abd; Gamal, Yasser Abdel Shafy

doi:10.1088/1757-899x/1171/1/012004

Cited by 4 publications

(3 citation statements)

References 7 publications

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“…dengan setting satuan kuat tekan kg/cm 2 , dapat dimulai pengujian benda uji hingga hancur. grafik optimal dari software ADU merupakan kemampuan nilai kuat tekan beton untuk menopang beban axial (Elrazek & Shafy Gamal, 2021).…”

Section: Kuat Tekanunclassified

Penggunaan Bahan Aditif Master Glenium Ace 8595 Untuk Meminimalisir Porositas Pada Beton

Fitriani,

Mahardana,

Pasya

et al. 2024

jurissipil

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<p><em>Concrete has now become the most essential material in modern construction. The strength and durability of concrete are vital factors that influence the strength and stability of buildings and infrastructure. Porosity refers to the degree to which concrete has voids or voids within its structure. Concrete porosity has a significant impact on concrete compressive strength. The higher the level of porosity, the lower the compressive strength of the concrete. In this research, we conducted a concrete formulation experiment by adding a type F additive to MasterGlenium Ace 8595. This research investigates the effect of adding the additive Master Glenium Ace 8595 on changes in concrete porosity and increasing concrete compressive strength. The results of the research show that from the aggregate suitability testing, it was stated that all the aggregates tested were suitable for use as a building material for concrete, workability testing obtained results with dilute criteria, porosity testing obtained an average porosity of 8.05%, and compressive strength testing obtained an average compressive strength value. -an average of 23.56 MPa indicates an increase of 8.69% of the planned concrete quality. This research concludes that concrete porosity is one of the factors that must be considered to increase the compressive strength of concrete because it significantly influences its density and compressive strength. Keeping the porosity at a low level and the compressive strength of the concrete at a high level can ensure that the concrete structure has good resistance to loads and the environment and reduces the risk of damage and maintenance.</em></p>

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Section: Kuat Tekanunclassified

Penggunaan Bahan Aditif Master Glenium Ace 8595 Untuk Meminimalisir Porositas Pada Beton

Fitriani,

Mahardana,

Pasya

et al. 2024

jurissipil

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“…To minimize the need for coring, non-destructive testing can be used in conjunction with coring testing to assess the strength of a structure, gather more information, and obtain a higher level of knowledge about the variability in the strength of the structure at a lower cost [55][56][57]. Schmidt (SH) and Ultrasonic Pulse Velocity (UPV) tests are commonly used together in practice to provide a comprehensive evaluation of concrete strength [58]. This paper aimed to introduce a new approach to predicting the concrete compressive strength of a given structure.…”

Section: Non-destructive Experimental Testsmentioning

confidence: 99%

The Effect of Material Quality on Buildings Moderately and Heavily Damaged by the Kahramanmaraş Earthquakes

Zengin,

Aydin

2023

Applied Sciences

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On 6 February 2023, two major earthquakes occurred in the Turkish province of Kahramanmaraş. The first earthquake with a magnitude of Mw 7.7 occurred in the center of Kahramanmaras, while the second earthquake with a magnitude of Mw 7.5 occurred in the region of Elbistan. These earthquakes caused heavy damage and loss of life in the affected regions. In particular, the Elbistan region experienced both earthquakes with great severity. Following the earthquakes, damage analyses were carried out on the earthquake-affected structures in this region. In the region, 1045 buildings were destroyed, 2640 buildings were heavily damaged, and 463 buildings were moderately damaged by the earthquakes. In this study, the relation between the material quality and the damage status of the affected buildings in the Elbistan region was investigated. A total of 20 buildings with heavy and moderate damage, built both before and after the year 2000, were selected for analysis. Samples were taken from these buildings, and the compressive strength values of the samples were obtained. Further, in situ experiments featuring the Schmidt and UPV tests were performed in the buildings. The results found that the buildings lacked adequate concrete strength. In particular, the post-2000 structures recorded concrete strength values below the established standard. This study proves the necessity of following established regulations in the design and construction of buildings in earthquake-prone zones, especially with respect to the construction materials used.

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“…The present development of testing methods and equipment makes it possible to carry out more and more non-destructive tests. Sclerometric [ 36 , 37 , 38 ], ultrasound [ 39 , 40 , 41 , 42 , 43 ], ferromagnetic [ 44 , 45 ], and thermovision [ 46 ] tests, which are widely described in the literature, are most commonly used for testing reinforced concrete structures. An interesting comparison of testing methods in the aspect of concrete strength assessment has been published in [ 47 ].…”

Section: Introductionmentioning

confidence: 99%

Degradation Analyses of Systemic Large-Panel Buildings Using Comparative Testing during Demolition

2022

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Assessment of the technical condition of large-panel buildings, due to their on-going use and covering resulting from thermomodernization works, is problematic. Results from non-destructive tests (NDT) are subjected to high uncertainty. Destructive tests, which give results with the highest level of confidence, are practically not used. Local sampling for testing gives only a partial image of the condition of a prefabricated building. In this type of construction, joints connecting the precast elements are the most vulnerable to degradation. Access to them is technically difficult. Demolition of this type of building is extremely rare. However, it is a unique opportunity to perform a full spectrum of both NDT and destructive testing. This gives an opportunity for large-scale demolition sampling to identify hidden defects and compare the results obtained by different methods. The comparison of results allows for the scaling of NDT methods and reveals the presence of typical relationships. The paper presents visual, non-destructive, and destructive tests’ results of an over 40-year-old large-panel building scheduled for demolition. The design of this building is repetitive and similar to solutions found in thousands of other buildings. The usefulness of particular research methods for evaluating the technical condition of prefabricated buildings has been determined.

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The Reliable Concrete Compression Strength Assessment by SCHMIDT Hammer for Different Concrete Grades

Cited by 4 publications

References 7 publications

Penggunaan Bahan Aditif Master Glenium Ace 8595 Untuk Meminimalisir Porositas Pada Beton

Penggunaan Bahan Aditif Master Glenium Ace 8595 Untuk Meminimalisir Porositas Pada Beton

The Effect of Material Quality on Buildings Moderately and Heavily Damaged by the Kahramanmaraş Earthquakes

Degradation Analyses of Systemic Large-Panel Buildings Using Comparative Testing during Demolition

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