KR950025436A - Concrete setting time measuring device by ultrasonic speed measurement - Google Patents

Concrete setting time measuring device by ultrasonic speed measurement Download PDF

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Publication number
KR950025436A
KR950025436A KR1019940002627A KR19940002627A KR950025436A KR 950025436 A KR950025436 A KR 950025436A KR 1019940002627 A KR1019940002627 A KR 1019940002627A KR 19940002627 A KR19940002627 A KR 19940002627A KR 950025436 A KR950025436 A KR 950025436A
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KR
South Korea
Prior art keywords
receiver
receiving
time
measuring
concrete
Prior art date
Application number
KR1019940002627A
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Korean (ko)
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KR0140826B1 (en
Inventor
임창덕
박석균
Original Assignee
우덕창
쌍용양회공업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 우덕창, 쌍용양회공업 주식회사 filed Critical 우덕창
Priority to KR1019940002627A priority Critical patent/KR0140826B1/en
Publication of KR950025436A publication Critical patent/KR950025436A/en
Application granted granted Critical
Publication of KR0140826B1 publication Critical patent/KR0140826B1/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
    • G01N29/0609—Display arrangements, e.g. colour displays
    • G01N29/0645—Display representation or displayed parameters, e.g. A-, B- or C-Scan

Abstract

본 발명은 초음파 속도 측정에 의해 응결시간을 자동으로 측정할 수 있는 장치를 제공하기 위한 것이다.The present invention is to provide an apparatus capable of automatically measuring the setting time by ultrasonic speed measurement.

본 발명의 장치는 초음파를 발신 및 수신하는 발·수신부, 상기 발·수신부로 부터의 초음파를 콘크리트 시료에 직접 전달 및 수신하는 발·수신자, 상기 발· 수신부를 제어하는 시간제어부, 자료저장 및 수신된 신호로부터 콘크리트의 1차 응결시간을 측정하고 이를 경험식과 대비분석하는 신호분석 처리부와 응결시간을 측정하는 결과를 출력하는 출력부로 이루어진 것이다.The apparatus of the present invention includes a receiving and receiving unit for transmitting and receiving an ultrasonic wave, a receiving and receiving unit for directly transmitting and receiving an ultrasonic wave from the receiving and receiving unit to a concrete sample, a time control unit for controlling the receiving and receiving unit, and storing and receiving data. It is composed of a signal analysis processing unit for measuring the first settling time of concrete from the signal, and an output unit for outputting the result of measuring the settling time.

본 발명의 장치는 시간별 초음파 속도 변화 경향을 미분함으로서, 이전가지 초음파 속도 변화 경향만으로는 찾기 어려웠던 종결시간을 정확히 계측할 수 있도록 되어 있으며,지금까지의 초음파 속도 측정에 의한 콘크리트 응결시간 측정방법을 획기적으로 개설할 수 있게 된다.The apparatus of the present invention is capable of accurately measuring the termination time, which was difficult to find only by the trend of the ultrasonic speed change alone, by differentiating the tendency of the ultrasonic speed change by time, and the method of measuring concrete condensation time by the ultrasonic speed measurement up to now is remarkable. I can establish it.

Description

초음파 속도 측정에 의한 콘크리트 응결시간 측정장치Concrete setting time measuring device by ultrasonic speed measurement

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 콘크리트의 응결과 경화과정을 나타낸 그래프이다.1 is a graph showing the condensation and curing process of concrete.

제2도는 본 발명에 따른 초음파 측정에 의한 콘크리트 응결시간 측정장치의 블럭 다이아그램이다.2 is a block diagram of an apparatus for measuring concrete setting time by ultrasonic measurement according to the present invention.

Claims (3)

초음파 속도에 의한 콘크리트 응결시간을 측정하는 장치에 있어서, 초음파를 발신 및 수신하는 발·수신부, 상기 발· 수신부로 부터의 초음파를 콘크리트 시료에 직접 전달 및 수신하는 발·수신자, 상기 발·수신부를 제어하는 시간제어부, 자료저장 및 수신된 신호로부터 콘크리트의 1차 응결시간을 측정하고 이를 경험식과 대비분석하는 신호분석 처리부와 응결시간을 측정한 결과를 출력하는 출력부로 이루어진 것을 특징으로 하는 초음파 속도측정에 의한 콘크리트 응결시간의 측정장치.An apparatus for measuring concrete condensation time by ultrasonic speed, the apparatus comprising: a receiver / receiver for transmitting and receiving ultrasonic waves, a receiver / receiver for directly transmitting and receiving ultrasonic waves from the foot / receiver, and the receiver / receiver Ultrasonic velocity measurement, comprising a time control unit for controlling, measuring the primary condensation time of the concrete from the received data and the received signal, and a signal analysis processing unit for comparing the empirical equation and an output unit for outputting the result of the condensation time Apparatus for measuring concrete setting time by 제1항에 있어서, 상기 발·수신자는 탐촉자로 이루어져 있으며, 초음파를 일정시간 간격으로 측정할 수 있도록 된 것을 특징으로 하는 초음파 속도측정에 의한 콘크리트 응결시간의 측정장치.The apparatus of claim 1, wherein the receiver and the receiver are made of a probe, and the ultrasonic waves are measured at predetermined time intervals. 제1항 또는 제2항에 있어서, 상기 발·수신자는 콘크리트 시료와 철재, PVC 또는 폴리프로필렌의 매체를 통해서 접촉되어 있는 것을 특징으로 하는 초음파 속도측정에 의한 콘크리트 응결시간의 측정장치.The apparatus of claim 1 or 2, wherein the receiver and the receiver are in contact with the concrete sample through a medium of steel, PVC, or polypropylene. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940002627A 1994-02-15 1994-02-15 Apparatus for measuring setting time of concrete by ultrasonic velocity measurement KR0140826B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940002627A KR0140826B1 (en) 1994-02-15 1994-02-15 Apparatus for measuring setting time of concrete by ultrasonic velocity measurement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940002627A KR0140826B1 (en) 1994-02-15 1994-02-15 Apparatus for measuring setting time of concrete by ultrasonic velocity measurement

Publications (2)

Publication Number Publication Date
KR950025436A true KR950025436A (en) 1995-09-15
KR0140826B1 KR0140826B1 (en) 1998-07-01

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KR1019940002627A KR0140826B1 (en) 1994-02-15 1994-02-15 Apparatus for measuring setting time of concrete by ultrasonic velocity measurement

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KR (1) KR0140826B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101280993B1 (en) * 2013-03-14 2013-07-08 한국건설기술연구원 Ultrasonic Test Apparatus for Determining Concrete Strength
KR102129975B1 (en) 2018-09-17 2020-07-03 가천대학교 산학협력단 Automatic measement apparatus of concrete mixture setting time

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