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Nitto Construction Inc. – Concrete Test Hammer

  • Company Name: Nitto Construction Inc.
  • State/Prefecture: Hokkaido
  • City/Town/Village: Monbetsu
  • Street: 1344-5 Oumucho,
  • Country: Japan
  • Zip/Postal Code: 098-1702
  • Phone: 0158-84-2715
  • Website: http://www.nittokensetsu.co.jp
  • Contact: info@nittokensetsu.co.jp
  • Listed: 06/15/2014 9:10 pm
  • Expires: This ad has expired
Nitto Construction Inc. – Concrete Test Hammer
3rd Monozukuri Nippon - Logo

An incident in 1999 prompted President Hajime Kubo to consider the development of the CTS-02. When hearing news that a 200 kg block of concrete had fallen from a tunnel wall, Kubo wondered if Japan’s concrete structures were beginning to reach their limits. He realized that there was a need for an accurate and portable concrete testing device. Understanding that such equipment already existed, but lacked the auccuracy necessary, Kobu called on Kunio Gokudan (then an assocaie professor researching non-destructive concrete-testing methods at the department of Civil Engineering in Tokai University). Together Kobu and Gokudan overcame many technical challenges, and in 2005 unveiled Nitto Construction’s first Concrete Tester (CT). It was uniquely capable of simultaneously and automatically assessing the compressive strength of a concrete structure and the degree of deformation.

Concrete Strength Test

Strength of Slab Testing

Road Surface Deterioration

Strength Testing

CTS-02 Awards

  • Promoted in “New Hokkaido Products Trial”
  • Awarded for advancement of Construction Industry
  • Special Prize from the Ministry of Economy Trade and Industry (Japan)
  • Hokkaido, Japan “Good Design” 2005 bronze award
  • Selected for Hokkaido Good Design Competition

CTS-02 Hammer – Concrete Tester and Surveyor
The CTS-02 tests the strength of fresh or mature concrete with greater precision and speed than conventional rebound hammers. Requiring only seconds of set-up time and easy-to-calibrate, the CTS-02 records and analyzes data two times faster than a rebound hammer. Applying a gentle waveform of impact force at the point of hammer and concrete contact, the CTS-02 reads concrete with unprecedented precision, and even detects previously unreadable defects.

  • Construction Site Testing – inspecting fresh concrete to ensure it meets requirements
  • Periodic maintenance of concrete structures to monitor and prevent structural failure
  • Quality assurance testing of concrete structures to verify previous results
  • Civil engineering – state and municipal inspections and evaluations of concrete structures and compliance with regulations and building codes
  • Inspecting bridges and other concrete structures where core sampling is difficult
  • Determining the strength of an entire area of concrete (using Area Mode setting)
  • Inspecting defects in concrete products
  • Inspecting fire damage in concrete structures by measuring strength in different locations


Ad Reference ID: 346539e0a257a272

One Related article of “Nitto Construction Inc. – Concrete Test Hammer”

  1. Third Monozukuri Nippon Grand Award – Special Prize
    Manufacturing Industries Bureau, Ministry of Economy, Trade and Industry, Japan

    Awarded to
    Simple and highly accurate non-destructive testing device for concrete structures that applied a new measuring principle: the Concrete Tester (CTS)

    Award Outline
    The award winners developed and manufactured a non-destructive testing device that makes it possible to predict compressive strength and to detect magnitudes of surface deterioration and delamination of concrete structures. It has been demonstrated that its measuring accuracy is much higher than the traditional rebound hammer method or impact sound method and measurements can be easily done by anyone. As the aging of concrete structures is becoming a social issue, this technology is drawing attention as a promising method.

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