KR20120106190A - Device for meansuring the strain of substance to be measured - Google Patents

Device for meansuring the strain of substance to be measured Download PDF

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Publication number
KR20120106190A
KR20120106190A KR1020110024135A KR20110024135A KR20120106190A KR 20120106190 A KR20120106190 A KR 20120106190A KR 1020110024135 A KR1020110024135 A KR 1020110024135A KR 20110024135 A KR20110024135 A KR 20110024135A KR 20120106190 A KR20120106190 A KR 20120106190A
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South Korea
Prior art keywords
measuring
measurement
measured
deformation
expansion
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KR1020110024135A
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Korean (ko)
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최재석
신현철
이한승
이형민
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한국건설생활환경시험연구원
한양대학교 산학협력단
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Priority to KR1020110024135A priority Critical patent/KR20120106190A/en
Publication of KR20120106190A publication Critical patent/KR20120106190A/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/30—Measuring arrangements characterised by the use of mechanical techniques for measuring the deformation in a solid, e.g. mechanical strain gauge
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
    • G01K1/143—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations for measuring surface temperatures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/60—Investigating resistance of materials, e.g. refractory materials, to rapid heat changes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/38—Concrete; ceramics; glass; bricks
    • G01N33/383—Concrete, cement

Abstract

PURPOSE: A device for measuring the deformation of an object to be measured is provided to easily measure and reduce costs because a manager does not need to stay in a site and to manually check. CONSTITUTION: A device for measuring the deformation of an object to be measured comprises a body(10), a retention member(18), a digital measuring unit(20), and a controlling unit. The top of the body is opened, thereby being opened and closed with a cover(12). The body comprises one or more closed type measuring chambers(16) in which heat transmitting elements for generating steam are comprised. The retention member is placed in the inside of each measuring chamber for measuring an object to be measured. The expanding or shrinking deformation of the measuring device is measured. The controlling unit records and outputs measurement values of the expanding or shrinking deformation on a real time basis.

Description

피 측정체의 변형량 측정을 위한 장치{Device for meansuring the strain of substance to be measured} Device for meansuring the strain of substance to be measured

본 발명은 품질 또는 요구되는 규격의 콘크리트 건축자재 개발을 위한 일련의 연구 시 건축자재인 피 측정체의 팽창 또는 수축 변형량 측정을 위한 장치에 관한 것으로, 더욱 상세하게는 오토 클레이브 양생을 이용한 피 측정체의 변형량 측정을 위한 장치에 관한 것이다.The present invention relates to a device for measuring the amount of expansion or contraction deformation of the measured object, which is a building material in a series of studies for the development of concrete building materials of the quality or required specifications, and more specifically, an object to be measured using autoclave curing. It relates to a device for measuring the amount of deformation of the.

콘크리트는 응결 또는 경화 과정을 거쳐 강성이 발현되기 전, 수화반응에 의한 수화열로 그 부피가 전체적으로 팽창하며 변형 되는데, 그러한 콘크리트의 변형은 소성수축균열, 소성침하균열 등을 유발시키며 이로 인해 수분 및 염화물의 침투가 가속화되어 콘크리트의 내구성이 저하되고 철근 부식의 주 요인이 되는 것으로 자재의 개발 시 주안점으로 제시된다.Before the concrete is hardened through condensation or hardening, the volume of the concrete expands and deforms due to the heat of hydration caused by the hydration reaction, and the deformation of the concrete causes plastic shrinkage cracking, plastic settlement cracking, and the like, thereby causing moisture and chloride. Accelerated penetration of concrete reduces the durability of concrete and is a major factor in the corrosion of reinforcing steel.

이러한 콘크리트의 변형을 측정하는 방법으로 오토 클레이브 양생을 이용한 측정장치가 주로 많이 이용되고 있는데, 그러한 측정장치는 밀폐공간 속에서 발생시킨 10atm, 180℃ 정도의 포화증기로 피 측정체를 촉진양생시키고, 양생 후 피 측정체를 측정실 외부로 꺼내어 20도로 냉각 후 소기의 피 측정체 팽창 또는 수축 변형량을 측정하게 된다.As a method of measuring the deformation of concrete, a measuring device using autoclave curing is mainly used. Such a measuring device facilitates curing of a subject under saturation steam at about 10 atm and 180 ° C. generated in a closed space. After curing, the object to be measured is taken out of the measuring room, cooled to 20 degrees, and the desired amount of expansion or contraction of the measured object is measured.

그런데 이러한 오토 클레이브 양생을 이용한 측정장치는 수공적인 방식, 즉 밀폐공간 내에 피 측정체를 넣고 빼내면서 그 측정체의 변형량 측정을 관리자가 수공적으로 이루고 있는 것으로, 그 측정이 자동화된 기법이 아니므로 측정과정이 번거로우며 여러 가지 원인에 의해 오차가 발생할 수 있는 문제점이 있다. However, such a measuring device using autoclave curing is a manual method, that is, the manager makes manual measurement of the deformation amount of the measuring object by inserting and removing the measured object into a closed space, and the measurement is not an automated technique. The measurement process is cumbersome and there is a problem that an error may occur due to various causes.

그리하여 근래에 와서는 피 측정체의 변형량 측정을 양생과정에서 직접 일련의 기계적이고 자동적이며 보다 정밀하게 측정할 수 있는 것이 요구되고 있는 실정이다.Thus, in recent years, it is required to measure the deformation amount of the target object directly in the curing process in a series of mechanical, automatic and more precise measurements.

본 발명은 상기에서와 같은 사정을 고려하여 이루어진 것으로, 그 목적은 콘크리트의 팽창과 수축변형 측정을 일련의 기계적이고 전자적으로 데이터처리되게 함으로써, 실시간 이력의 기록과 그 기록정보를 관리자에게 알려주어 측정에 편의는 물론, 보다 신뢰성 있는 측정값을 얻을 수 있게한 피 측정체의 변형량 측정을 위한 장치를 제공하게 된다.The present invention has been made in consideration of the above circumstances, and an object thereof is to measure the expansion and contraction deformation of concrete by mechanically and electronically processing a series of data, so as to inform the manager of the record of the real-time history and the record information. The present invention provides a device for measuring the amount of deformation of an object to be measured, as well as providing a more reliable measurement value.

이러한 본 발명의 목적은 품질 또는 요구되는 규격의 콘크리트 건축자재 개발을 위한 일련의 연구 시 건축자재인 피 측정체의 팽창 또는 수축 변형량 측정을 위한 장치를 제공함에 의해 달성되게 되는데, 이 장치는 품질 또는 요구되는 규격의 콘크리트 건축자재 개발을 위한 일련의 연구 시 오토 클레이브 양생을 이용해 건축자재인 피 측정체의 팽창 또는 수축 변형량을 측정시키는 장치로서, 상면이 개구되어 덮개로 개폐되며, 증기발생을 위한 전열요소가 구비되는 적어도 하나 이상의 밀폐형 측정실이 구비되는 동체와, 동체의 측정실 내에서 피 측정체 측정을 위해 정치시키는 보유부재와, 보유부재를 이용해 정치되는 피 측정체의 상면과 면접촉식으로 관계하면서 피 측정체의 팽창 또는 수축 변형량을 측정하는 디지털방식의 측정기구 및 측정기구의 피 측정체 팽창 또는 수축 측정 값을 실시간적으로 수록하고 출력하는 제어부를 포함하여서, 소성상태 콘크리트의 팽창과 수축변형 측정을 일련의 기계적이고 전자적으로 데이터처리되어 실시간 이력의 기록과 그 기록정보를 관리자에게 알려주게 된다.This object of the present invention is achieved by providing a device for measuring the amount of expansion or contraction deformation of the measured object, which is a building material, in a series of studies for developing concrete building materials of a quality or required specification. A device for measuring the amount of expansion or contraction deformation of an object under construction using autoclave curing during the series of researches for the development of concrete building materials of the required standard.The upper surface is opened and opened by a cover, and the heat transfer for steam generation. The body is provided with at least one hermetic measuring chamber provided with an element, a holding member which is allowed to stand in the measuring chamber of the body for measurement of the measuring object, and a surface contact type with the upper surface of the measuring object which is held using the holding member. Digital measuring instruments and measuring instruments for measuring the amount of expansion or contraction deformation of the object under test It includes a control unit that records and outputs the measured or expanded measurement value of the measured object in real time, and performs a series of mechanical and electronic data processing to measure the expansion and contraction deformation of the fired concrete. The administrator will be notified.

본 발명에 의한 피 측정체의 변형량 측정을 위한 장치에 따르면, 일련의 기계적이고 전자적인 자동화된 기법을 이용해 실시간적으로 측정되게 함으로서, 종래 현장에 상주하여 관리자가 수공적으로 체크할 필요가 없어 측정작업이 간편할 뿐 아니라, 보다 안정되고 신뢰성 있는 피 측정체의 변형량 측정값을 얻을 수 있는 효과를 갖는다.According to the apparatus for measuring the deformation amount of the object to be measured according to the present invention, by measuring in real time using a series of mechanical and electronic automated techniques, there is no need to check manually by the administrator who resides in the conventional site Not only is the work simple, it also has the effect of obtaining a more stable and reliable measurement of the deformation amount of the object under test.

또 본 발명은 측정시간과 수공을 배제시키어 인건비가 절약되며, 개발비용을 절감시키는 효과도 있을 것이다.In addition, the present invention eliminates measurement time and manual labor costs, and will also reduce the development cost.

도 1은 본 발명 피 측정체의 변형량 측정을 위한 장치의 전체적인 구성을 보여 주는 평면도.
도 2는 도 1의 A-A선 부분을 따라 절단하여 보여 주는 본 발명 피 측정체의 변형량 측정을 위한 장치의 구성을 개략적으로 보여 주는 단면도.
도 3은 본 발명 피 측정체의 변형량 측정을 위한 장치의 구동 블럭도.1 is a plan view showing the overall configuration of a device for measuring the deformation amount of the subject to be measured of the present invention.
2 is a cross-sectional view schematically showing the configuration of a device for measuring the amount of deformation of the subject under test of the present invention shown by cutting along the AA line portion of FIG.
Figure 3 is a drive block diagram of the device for measuring the deformation amount of the subject under the present invention.

다음 본 발명의 일 실시 예를 도면에 의거하여 구체적으로 설명하겠다. 도 1 및 도 2에는 본 발명에 따른 피 측정체의 변형량 측정을 위한 장치가 상세히 도시되어 있다.Next, an embodiment of the present invention will be described in detail with reference to the drawings. 1 and 2 show the device for measuring the amount of deformation of the measuring object according to the invention in detail.

본 발명은 품질 또는 요구되는 규격의 콘크리트, 예를 들어 제강슬래그 골재를 이용한 건축자재 개발을 위한 일련의 연구 시 오토 클레이브 양생을 이용해 건축자재인 피 측정체(W)의 팽창 또는 수축 변형량을 측정시키는 장치를 제공하는 것으로, 도면에서 10은 본 발명 피 측정체의 변형량 측정을 위한 장치의 동체이다.The present invention is to measure the amount of expansion or contraction deformation of the measurement target (W) using the autoclave curing in a series of studies for the development of building materials using concrete of quality or required specifications, for example steel slag aggregate. In providing a device, 10 in the figure is a fuselage of the device for measuring the amount of deformation of the object to be measured of the present invention.

이 동체(10)는 외기와의 차단 또는 단열을 위한 벽으로 이루고, 상면이 개구되어 덮개(12)로 개폐되며, 증기발생을 위한 전열요소(14)가 구비되는 적어도 하나 이상의 밀폐형 측정실들(16)이 구비된다.The body 10 is formed of a wall for blocking or insulating heat from outside air, the upper surface of which is opened and closed by the cover 12, at least one or more sealed measuring chambers 16 are provided with a heat-transfer element 14 for steam generation ) Is provided.

또 동체(10)의 측정실들(16) 내에는 피 측정체(W)의 측정을 위해 정치시키는 보유부재(18)가 구비되어 있는데, 이 보유부재(18)는 피 측정체(W)를 교체방식으로 탈착가능하게 정치시키는 구조를 가지게될 것이다. In addition, in the measuring chambers 16 of the fuselage 10, a retaining member 18 is provided to allow the object to be measured to be measured. The retaining member 18 replaces the measured object W. In a removable manner.

또한 각기의 측정실들(16)에는 보유부재(18)를 이용해 정치되는 피 측정체(W)의 상면과 면접촉식으로 관계하면서 피 측정체(W)의 팽창 또는 수축 변형량을 측정하는 다이얼 게이지를 이용한 디지털방식의 측정기구(20)가 구비되어 있다.In addition, each of the measurement chambers 16 has a dial gauge for measuring the amount of expansion or contraction deformation of the measurement target W while being in surface contact with the upper surface of the measurement target W, which is held by the holding member 18. The digital measuring instrument 20 used is provided.

그리고 측정기구(20)의 피 측정체(W) 팽창 또는 수축 측정 값을 실시간적으로 검출하여 산출된 정보를 비교하여 피 측정체의 변형량 데이터를 수록하고 출력하는 제어부(30)를 갖는다.And a control unit 30 for storing and outputting the deformation amount data of the object under measurement by comparing the information calculated by detecting the measured object W expansion or contraction measured value in real time in real time.

한편 동체(10)의 주벽에는 측정실(16)의 실온을 강제적으로 하강시키는 기계적인 냉각 싸이클방식, 즉 냉매를 기계적이고 강제적으로 순환시키면서 응축ㆍ팽창작용을 이루어 소기의 열교환을 이루게 하는 냉각수단(40)을 더 포함하고 있다. On the other hand, the main wall of the body 10 has a mechanical cooling cycle system forcibly lowering the room temperature of the measuring chamber 16, that is, cooling means 40 for condensation and expansion while mechanically and forcibly circulating the refrigerant to achieve a desired heat exchange. More).

또 측정실(16) 내의 적당한 위치에 설치되어 실온의 감지 또는 제어를 위한 제1온도센서(50)를 더 포함한다. 이 제1온도센서(50)는 측정실(16) 내의 양생온도 약 180도를 제어하게 될 것이다.The apparatus further includes a first temperature sensor 50 installed at an appropriate position in the measurement chamber 16 for sensing or controlling room temperature. The first temperature sensor 50 will control the curing temperature of about 180 degrees in the measurement chamber 16.

또한 피 측정체(W)의 표면 온도 감지 또는 제어를 위한 제2온도센서(52)를 더 포함하고 있는데, 이 제2온도센서(52)는 피 측정체(W)가 냉각수단(40)을 이용해 냉각되어 20도에서 그 피 측정체(W)의 길이변화를 동일한 환경에서 측정을 위한 신호를 측정기구(20) 측에 전달하여 소기의 측정작업을 이루게 된다.In addition, it further comprises a second temperature sensor 52 for sensing or controlling the surface temperature of the object to be measured (W), the second temperature sensor 52 is the object to be measured by the cooling means (40) It is cooled by using the 20 ° to change the length of the measuring object (W) in the same environment for transmitting the signal for measurement in the measuring device 20 side to achieve the desired measurement work.

그러면 본 발명 피 측정체의 변형량 측정을 위한 장치의 측정과정을 설명하면, 먼저 장치의 측정실(16) 내 보유부재(18) 상에 피 측정체(W)를 정치시킨다.Then, the measurement process of the apparatus for measuring the deformation amount of the subject to be measured of the present invention, first, the object to be measured W is placed on the holding member 18 in the measuring chamber 16 of the apparatus.

피 측정체(W)의 정치가 완료되면 측정기구(20)를 피 측정체(W)의 상단에 접촉하도록 조절한다. 이때 제어부(30)에서는 최종 조절된 측정기구(20)의 위치를 영점으로 세팅한다.When the stationary of the measurement target object W is completed, the measurement instrument 20 is adjusted to contact the upper end of the measurement target object W. At this time, the control unit 30 sets the position of the measuring device 20 finally adjusted to zero.

또 피 측정체(W)의 측정 준비가 완료되면 제어부(30)에서는 전열요소(14)에 전원을 인가하여 증기를 발생시키고 측정실(16)의 온도를 제1온도센서(50)를 이용해 180도로 유지하면서 약 24시간 양생을 이루게 될 것이다.When the measurement preparation of the measurement target object W is completed, the controller 30 generates steam by applying power to the heat transfer element 14, and the temperature of the measurement chamber 16 is 180 degrees using the first temperature sensor 50. It will cure about 24 hours while maintaining.

그리고 양생공정이 완료되면, 제어부(30)에서는 전열요소(14)를 정지시킴과 동시, 냉각수단(40)에 구동신호를 전달하여 소정의 냉각공정과 실내의 강제배기를 이루게 한다.When the curing process is completed, the control unit 30 stops the heating element 14 and simultaneously transmits a driving signal to the cooling unit 40 to achieve a predetermined cooling process and forced exhaust of the room.

또한 냉각공정을 이루어 피 측정체(W)가 20도로 냉각되면, 제2온도센서(52)가 이를 감지함과 아울러, 측정기구(20)를 구동시키어 피 측정체(W)를 측정실(16) 내에 정치된 상태에서 변화량, 즉 양생 초기와 말기 값을 제어부(30)에서 비교하여 수화열에 의한 팽창량 값을 산출하게 되며, 산출된 데이터를 메로리에 저장 또는 출력하게 될 것이다.In addition, when the measurement object (W) is cooled to 20 degrees by the cooling process, the second temperature sensor (52) detects this and drives the measurement device (20) to measure the measurement object (W) in the measurement chamber (16). The amount of change, i.e., the initial stage and the end stage of curing, is compared in the control unit 30 to calculate the expansion amount due to the heat of hydration, and the calculated data is stored or output in the memory.

이상에서와 같이 본 발명의 일 실시 예를 설명하였으나, 본 발명은 이에 국한되지 않고 청구범위에 기재된 범위 내에서 변경이 가능할 것이다.
As described above, an embodiment of the present invention has been described, but the present invention is not limited thereto and may be changed within the scope of the claims.

10 :동체 12 :덮개
14 :전열요소 16 :측정실
18 :보유부재 20 :측정기구
30 :제어부 40 :냉각수단10: body 12: cover
14: heating element 16: measuring room
18: holding member 20: measuring instrument
30: control unit 40: cooling means

Claims (4)

품질 또는 요구되는 규격의 콘크리트 건축자재 개발을 위한 일련의 연구 시 오토 클레이브 양생을 이용해 건축자재인 피 측정체의 팽창 또는 수축 변형량을 측정시키는 장치로서, 다음을 포함하는 것;
상면이 개구되어 덮개로 개폐되며, 증기발생을 위한 전열요소가 구비되는 적어도 하나 이상의 밀폐형 측정실들이 구비되는 동체;
상기 측정실들 각기의 내에는 상기 피 측정체 측정을 위해 정치시키는 보유부재;
상기 보유부재를 이용해 정치되는 상기 피 측정체의 상면과 면접촉식으로 관계하면서 상기 피 측정체의 팽창 또는 수축 변형량을 측정하는 디지털방식의 측정기구; 및
상기 측정기구의 상기 피 측정체 팽창 또는 수축 측정 값을 실시간적으로 수록하고 출력하는 제어부를 포함하여서된 피 측정체의 변형량 측정을 위한 장치.An apparatus for measuring expansion or contraction deformation of an object to be measured as a building material by using autoclave curing in a series of studies for developing a concrete building material of a quality or required specification, including:
A fuselage having an upper surface opened and closed by a cover and having at least one sealed measuring chamber including a heating element for generating steam;
A holding member in each of the measurement chambers to stand still for the measurement of the measurement object;
A digital measuring mechanism for measuring the amount of expansion or contraction deformation of the measured object while being in surface contact with the upper surface of the measured object held by the holding member; And
And a control unit for recording and outputting the measurement object expansion or contraction measurement value of the measurement device in real time. 제1항에 있어서,
상기 동체의 주벽에 상기 측정실의 실온을 강제적으로 하강시키는 기계적인 냉각 싸이클방식의 냉각수단을 갖는 것을 더 포함하는 피 측정체의 변형량 측정을 위한 장치. The method of claim 1,
And a mechanical cooling cycle cooling means for forcibly lowering the room temperature of the measurement chamber on the main wall of the fuselage. 제1항에 있어서,
상기 측정실 내에 실온의 감지 또는 제어를 위한 제1온도센서를 더 포함하는 피 측정체의 변형량 측정을 위한 장치.The method of claim 1,
And a first temperature sensor for sensing or controlling room temperature in the measurement chamber. 제1항에 있어서,
상기 피 측정체의 표면 온도 감지 또는 제어를 위한 제2온도센서를 더 포함하는 피 측정체의 변형량 측정을 위하 장치.
The method of claim 1,
And a second temperature sensor for sensing or controlling the surface temperature of the object under test.
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KR101348749B1 (en) * 2013-07-31 2014-01-07 주식회사 신화플렉스 Device and method for auto clave process
CN103675242A (en) * 2012-08-30 2014-03-26 贵州中建建筑科研设计院有限公司 Method and device for measuring concrete or mortar volume deformation
KR20150065734A (en) * 2012-10-18 2015-06-15 요시노 셋고 가부시키가이샤 method for detecting voids in gypsum-based construction board and method for producing gypsum-based construction board
WO2016140407A1 (en) * 2015-03-04 2016-09-09 충북대학교 산학협력단 Ground expansion ratio measuring apparatus and measuring method
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CN103675242A (en) * 2012-08-30 2014-03-26 贵州中建建筑科研设计院有限公司 Method and device for measuring concrete or mortar volume deformation
CN103675242B (en) * 2012-08-30 2016-05-18 贵州中建建筑科研设计院有限公司 Measuring method and the device of a kind of concrete or mortar volume distortion
KR20150065734A (en) * 2012-10-18 2015-06-15 요시노 셋고 가부시키가이샤 method for detecting voids in gypsum-based construction board and method for producing gypsum-based construction board
KR101348749B1 (en) * 2013-07-31 2014-01-07 주식회사 신화플렉스 Device and method for auto clave process
WO2016140407A1 (en) * 2015-03-04 2016-09-09 충북대학교 산학협력단 Ground expansion ratio measuring apparatus and measuring method
CN108844451A (en) * 2018-03-21 2018-11-20 辽宁科技大学 A kind of more specification multiple degrees of freedom test specimen breathing testers
CN110118868A (en) * 2019-04-18 2019-08-13 广州建筑产业研究院有限公司 A kind of experimental rig and its test method of grouting material expansion rate
CN110118868B (en) * 2019-04-18 2022-03-15 广州建筑产业研究院有限公司 Grouting material expansion rate test device and test method thereof
CN110455169A (en) * 2019-08-06 2019-11-15 深圳市市政工程总公司 The Material shrinkage deformation test method of beam specimen

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