JPH0455736A - Strength measuring method for mass concrete - Google Patents

Strength measuring method for mass concrete

Info

Publication number
JPH0455736A
JPH0455736A JP16752490A JP16752490A JPH0455736A JP H0455736 A JPH0455736 A JP H0455736A JP 16752490 A JP16752490 A JP 16752490A JP 16752490 A JP16752490 A JP 16752490A JP H0455736 A JPH0455736 A JP H0455736A
Authority
JP
Japan
Prior art keywords
concrete
strength
temperature
mass concrete
mass
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP16752490A
Other languages
Japanese (ja)
Inventor
Kenji Nakajima
健治 中嶋
Shigeo Ariga
有賀　重雄
Ryoji Azuma
東　良志
Shunji Goto
後藤　俊二
Itsuo Shiomi
塩見　伊津夫
Hajime Wakabayashi
元 若林
Taketoshi Iketani
池谷　建勇
Toshiyuki Yagi
八木　敏行
Noboru Tsuruyama
鶴山　昇
Hiroyuki Mori
浩之 森
Kunio Matsuda
松田　國夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fudo Tetra Corp
Original Assignee
Fudo Construction Co Ltd
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.)
Filing date
Publication date
Application filed by Fudo Construction Co Ltd filed Critical Fudo Construction Co Ltd
Priority to JP16752490A priority Critical patent/JPH0455736A/en
Publication of JPH0455736A publication Critical patent/JPH0455736A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0058—Kind of property studied
    • G01N2203/0092—Visco-elasticity, solidification, curing, cross-linking degree, vulcanisation or strength properties of semi-solid materials

Landscapes

  • Sampling And Sample Adjustment (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

PURPOSE:To measure the strength of the inside of mass concrete accurately by estimating the strength of the inside of the mass concrete based on the strength of the cylindrical body of concrete under test which is cured at the same temperature as in the inside of the mass concrete. CONSTITUTION:The detected signal from a temperature detector 2 is sent into a personal computer 4 of a temperature controlling device 3 and recorded in the computer. The control signal from the personal computer 4 is sent into a temperature control panel 5. The operation of a hot/cool water circulating device 6 is controlled. The water temperature in a water tank 7 is controlled so that the temperature becomes equal to the detected temperature of the detector 2. In this way, cylindrical concrete bodies under test 8 in the water tank 7 are cured at the same temperature state as in the central part of mass concrete 1. The strength of the central part of the concrete is estimated based on the strength of the concrete body under test. The embedding place of the detector 2 is arbitrary. For example, the detector 2 is embedded in the surface layer part of the concrete 1 so as to confirm the time of removal from a framework, and the early strength of the surface layer part of the concrete 1 can be measured.

Description

【発明の詳細な説明】 （発明が属する技術分野） 本発明はマスコンクリートの強度の測定方法に関する。[Detailed description of the invention] (Technical field to which the invention belongs) The present invention relates to a method for measuring the strength of mass concrete.

（発明の課題とその特徴点） マスコンクリートの内部はセメントの水和熱の蓄積によ
り高温になる。(Problem of the invention and its features) The inside of mass concrete becomes high temperature due to the accumulation of hydration heat of cement.

本発明は、このようなマスコンクリートの内部の強度を
的確に測定する手段を提供することを目的としているも
のであって、その精成上の特徴は特許請求の範囲に記載
したとおりである。The present invention aims to provide a means for accurately measuring the internal strength of such mass concrete, and its refinement features are as described in the claims.

（図面による発明の説明） 図面において、１はマスコンクリート、２は温度検出器
であり、図の場合、温度検出器２はマスコンクリート１
の中心部に埋設されている。(Description of the invention with reference to drawings) In the drawings, 1 is mass concrete and 2 is a temperature sensor. In the case of the figure, temperature sensor 2 is mass concrete 1.
It is buried in the center of.

温度検出器２の検出信号は、温度管理装置３のパーソナ
ルコンピューター４に送られ、ここで記録されるととも
に、パーソナルコンピューター４から制御信号が温度制
御盤５に送られ、温冷水循環装置６の作動が制御されて
、水槽７内の水温を温度検出器２の検出温度と同じにな
るように制御するようになっている このようにして、水槽７内のコンクリート円柱供試体８
をマスコンクリート１の中心部と同じ温度状態で養生し
、その強度からマスコンクリート１の中心部の強度を推
定する。The detection signal of the temperature detector 2 is sent to the personal computer 4 of the temperature management device 3 and recorded there, and a control signal is sent from the personal computer 4 to the temperature control panel 5, which controls the operation of the hot and cold water circulation device 6. is controlled so that the water temperature in the water tank 7 is the same as the temperature detected by the temperature detector 2.In this way, the concrete cylindrical specimen 8 in the water tank 7
is cured at the same temperature as the center of mass concrete 1, and the strength of the center of mass concrete 1 is estimated from the strength.

なお、本発明の実施において、温度検出器２の埋設箇所
は任意であり、例えば、脱型時期を確認するために、温
度検出器２をマスコンクリート１の表層部に埋設して、
マスコンクリート１の表層部の早期強度を測定してもよ
く、また、マスコンクリート１内の各部の強度を同時に
測定するために、温度検出器２をマスコンクリート１の
中心部、表層部、および中間部に埋設してもよい。In carrying out the present invention, the temperature detector 2 may be buried at any location; for example, the temperature detector 2 may be buried in the surface layer of the mass concrete 1 in order to confirm the timing of demolding.
The early strength of the surface layer of the mass concrete 1 may be measured.Also, in order to measure the strength of each part of the mass concrete 1 at the same time, the temperature sensor 2 is installed at the center, the surface layer, and the middle of the mass concrete 1. It may be buried in the section.

（発明の効果） 本発明は、以上のようなものであって、マスコンクリー
トの内部と同じ温度状態で養生したコンクリート円柱供
試体の強度からマスコンクリートの内部の強度を推定す
るので、マスコンクリートの内部の強度を的確に把握す
ることができ、マスコンクリートの品質管理に大いに役
立つ。(Effects of the Invention) The present invention is as described above, and the strength of the inside of mass concrete is estimated from the strength of a concrete cylindrical specimen cured at the same temperature as the inside of mass concrete. It is possible to accurately grasp the internal strength, which is very useful for quality control of mass concrete.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明の一実施態様の説明図である。 １：マスコンクリート、２：温度検出器、３：温度管理
装置、４：パーソナルコンピューター、５：温度制御盤
、６：温冷水循環装置、７；水槽、８：コンクリート円
柱供試体。The drawings are explanatory diagrams of one embodiment of the present invention. 1: Mass concrete, 2: Temperature detector, 3: Temperature control device, 4: Personal computer, 5: Temperature control panel, 6: Hot and cold water circulation device, 7: Water tank, 8: Concrete cylindrical specimen.

Claims (1)

【特許請求の範囲】[Claims] マスコンクリートの内部に埋設した温度検出器の検出信
号に基づいてコンクリート円柱供試体を養生する水槽内
の水温を制御し、マスコンクリートの内部と同じ温度状
態で養生したコンクリート円柱供試体の強度からマスコ
ンクリートの内部の強度を推定することを特徴とするマ
スコンクリートの強度測定方法。The water temperature in the water tank in which the concrete cylindrical specimen is cured is controlled based on the detection signal of the temperature detector embedded inside the mass concrete, and the mass is calculated from the strength of the concrete cylindrical specimen cured at the same temperature as the inside of the mass concrete. A mass concrete strength measurement method characterized by estimating the internal strength of concrete.
JP16752490A 1990-06-26 1990-06-26 Strength measuring method for mass concrete Pending JPH0455736A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16752490A JPH0455736A (en) 1990-06-26 1990-06-26 Strength measuring method for mass concrete

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16752490A JPH0455736A (en) 1990-06-26 1990-06-26 Strength measuring method for mass concrete

Publications (1)

Publication Number Publication Date
JPH0455736A true JPH0455736A (en) 1992-02-24

Family

ID=15851297

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16752490A Pending JPH0455736A (en) 1990-06-26 1990-06-26 Strength measuring method for mass concrete

Country Status (1)

Country Link
JP (1) JPH0455736A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009079428A (en) * 2007-09-26 2009-04-16 Kajima Corp Joint method of concrete members and manufacturing method of floor slab for prestressed concrete bridge
CN113418780A (en) * 2021-06-11 2021-09-21 重庆建工建材物流有限公司 Concrete strength test system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009079428A (en) * 2007-09-26 2009-04-16 Kajima Corp Joint method of concrete members and manufacturing method of floor slab for prestressed concrete bridge
CN113418780A (en) * 2021-06-11 2021-09-21 重庆建工建材物流有限公司 Concrete strength test system
CN113418780B (en) * 2021-06-11 2023-06-02 重庆建工建材物流有限公司 Concrete strength test system

Similar Documents

Publication Publication Date Title
US7769201B2 (en) Method for analyzing multi-layer materials from one-sided pulsed thermal imaging
Brown et al. The thermal conductivity of fresh concrete
CN111077184B (en) Method for identifying steel pipe concrete member void defect based on infrared thermal imaging
CN105973929A (en) Non-destructive testing method for detecting thermal contact resistance inside parts by infrared camera
JPH0455736A (en) Strength measuring method for mass concrete
CN108508381B (en) Magnetic characteristic measurement sensing box considering temperature loading
RU2659617C1 (en) Objects control thermographic method and device for its implementation
RU2657332C1 (en) Method for determining reduced thermal resistance of non-uniform enclosing structure in climatic chamber
JP2003247964A (en) Method of inspecting concrete floor system part
CN106404538B (en) Heating device and heating method for thermal double-pull experiment
CN111551580B (en) Building enclosure structure heat transfer coefficient field test equipment and method
JP3315368B2 (en) Thermal conductivity measuring device and measuring method
JP3279781B2 (en) A method for judging the progress of rusting of reinforcing steel in concrete
JPS6243087Y2 (en)
CN113670213A (en) Coating thickness detection method, system and device based on infrared imaging
JPH04110747A (en) Measuring device for freezing damage withstand property of porous material
JPH0772723B2 (en) Method and apparatus for predicting concrete temperature
JPH0293315A (en) Thickness examining method of metallic pipe wall or the like
JPS6349187B2 (en)
Brady et al. Thermal image analysis for the in-situ NDE of composites
CN110530916A (en) The measuring method of inside concrete thermal stress distribution in a kind of thermal histories
Perez et al. Modeling of pulsed thermography in anisotropic media
Antczak et al. Monitoring and thermal characterisation of cement matrix materials using non-destructive testing
Shiratori et al. Detection of cracks and its image processing by infrared thermography
AU2021105197A4 (en) A thermal conductivity meter for determining thermal conductivity of civil engineering structures