Results 161 to 170 of about 15,949 (195)

Rebound hammer test to estimate compressive strength of heat exposed concrete

Construction and Building Materials, 2018
Abstract The residual concrete strength is required for evaluating the safety of reinforced concrete structures after fire. Based on the surface hardness of concrete, a rebound hammer test has been used to evaluate the compressive strength at the ambient temperature and after fire.
Pattamad Panedpojaman, Danupon Tonnayopas   +1 more
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Adapting ANFIS to Improve Field Rebound Hammer Test for Concrete Compressive Strength Estimation

Materials Science Forum, 2020
Rebound hammer tests are one of the most popular non-destructive testing methods to examine the concrete compressive strength in the field. Rebound hammer tests are relatively easy to conduct and low cost. More importantly, it will not cause damage to the existing structure and can obtain the results in a short time.
Yu Ren Wang, Dai Lun Chiang, Yi Jao Chen
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Advancing the Rebound Hammer Method: A New Concrete Test Hammer

2011
The concrete test hammer patented by Proceq’s Ernst O. Schmidt at the beginning of the 1950’s is without a doubt the most widely used NDT instrument worldwide for rapid assessment of the condition of a concrete structure. Despite this fact, the validity of the method remains a hotly debated topic amongst experts in the NDT field. This is largely due to
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Evaluation of rubbercrete based on ultrasonic pulse velocity and rebound hammer tests

Construction and Building Materials, 2011
Abstract Several research works have been carried out to study the fresh and hardened properties of concrete containing crumb rubber (rubbercrete) as a replacement of fine aggregate. The outcomes of these studies have highlighted the advantages and disadvantages of rubbercrete compared with conventional concrete mixtures.
Bashar S. Mohammed, Najwa Juaini Azmi, M. Abdullahi   +2 more
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Rebound Hammer, Pulse Velocity, and Core Tests in Self-Consolidating Concrete

ACI Materials Journal, 2012
ACI Materials Journal, V. 109, No. 2, March-April 2012. MS No. M-2010-411.R1 received June 29, 2011, and reviewed under Institute publication policies. Copyright © 2012, American Concrete Institute. All rights reserved, including the making of copies unless permission is obtained from the copyright proprietors.
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An Experimental Study on the Rebound Degree Tendency of Linear Hitting Test Hammer

Journal of the Korea Concrete Institute, 2005
Recently, as the remodeling market gradually substitute for new construction market and safety diagnosis for reconstruction apartment become a matter of principal Interest, it is demanded that scientific diagnosis and evaluation for existing concrete structure state.
Hyo-Soo Ahn, Chee-Ho Seo
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Strength Evaluation of In-Situ Concrete by Rebound Hammer and Core Testing

Cement, Concrete, and Aggregates, 1994
Abstract This paper describes the results of an extensive field investigation where the quality of in-place concrete flatwork was evaluated. Nondestructive testing (NDT) was carried out using ultrasonic pulse velocity and rebound hammer techniques to establish a correlation with compressive strengths of core tests.
MA Ward, BW Langan
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Schmidt hammer rebound hardness tests for the characterization of ancient fired clay bricks

International Journal of Architectural Heritage, 2018
This article presents results of non-destructive Schmidt hammer tests performed on ancient fired clay bricks sampled from historical masonry.
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High-strength concrete – NDT with rebound hammer: influence of aggregate on test results

Nondestructive Testing and Evaluation, 2014
Rebound hammer is the most frequently used non-destructive method for estimation of concrete strength. Measurement results are influenced by various factors (components and composition of concrete, humidity or age), which are well known for normal-weight concrete. High-strength concrete (HSC) differs in quality and the question is to which extent these
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Machine learning prediction of concrete compressive strength using rebound hammer test

Journal of Building Engineering, 2023
Abdulkader El-Mir, Samer El-Zahab, Zoubir Mehdi Sbartaï, Farah Homsi, Jacqueline Saliba, Hilal El-Hassan   +5 more
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