Results 261 to 270 of about 5,534,120 (289)

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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.
openaire   +1 more source

Test Method for Determination of Rock Hardness by Rebound Hammer Method

2008
  +6 more sources

Experimental Study on the Spatial Variability of Concrete by the Core Test and Rebound Hammer Test

ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering, 2023
Jinju Tao, Jianbing Chen
openaire   +1 more source

Interaction of electrical resistivity with rebound hammer and ultrasonic velocity test

Los programas de inspección periódica de estructuras de hormigón armado son fundamentales para planificar el mantenimiento y para un mejor control del comportamiento estructural en condiciones de servicio. En este contexto, los ensayos no destructivos (END) son herramientas importantes destinadas a monitorear la integridad de las estructuras, ya que ...
Leonel, Antônio Carlos Assis, de Oliveira, Andrielli Morais de, Cascudo, Oswaldo   +2 more
openaire   +1 more source

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.
openaire   +1 more source

Hammer rebound index as an overall-mechanical-quality indicator of self-compacting concrete containing recycled concrete aggregate

Construction and Building Materials, 2022
Ana BELÉN Espinosa, Roberto Serrano-Lopez, Vanesa Ortega-Lopez   +2 more
exaly