JPH05332901A - Inspection method of specimen - Google Patents

Inspection method of specimen

Info

Publication number
JPH05332901A
JPH05332901A JP15883092A JP15883092A JPH05332901A JP H05332901 A JPH05332901 A JP H05332901A JP 15883092 A JP15883092 A JP 15883092A JP 15883092 A JP15883092 A JP 15883092A JP H05332901 A JPH05332901 A JP H05332901A
Authority
JP
Japan
Prior art keywords
concrete
cylinder
specimen
compressive strength
cutting
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
JP15883092A
Other languages
Japanese (ja)
Inventor
Kazuya Koga
一八 古賀
Masato Okura
真人 大倉
Kenji Tanitsu
健二 谷津
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.)
Haseko Corp
Original Assignee
Haseko Corp
Hasegawa Komuten 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 Haseko Corp, Hasegawa Komuten Co Ltd filed Critical Haseko Corp
Priority to JP15883092A priority Critical patent/JPH05332901A/en
Publication of JPH05332901A publication Critical patent/JPH05332901A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To correctly inspect the compressive strength of concrete of a structure easily. CONSTITUTION:Immediately after a concrete 1 is supplied into a structural body, a cylinder 2 of a predetermined inner diameter is inserted into a position where a specimen is supposed to be obtained. A hollow part in the cylinder is filled with the concrete. Then, a notch 3 is provided outside the outer peripheral part of the inserted cylinder to take out a cylinder 4 to which the concrete adheres. After the cylinder is taken out, the adhering concrete and the cylinder are removed and, a concrete 6 as a specimen inside the cylinder is obtained. The concrete 6 is subjected to a compression test.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、構造体コンクリート
の圧縮強度検査を行うための供試体の検査方法に関する
ものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of inspecting a specimen for inspecting the compressive strength of structural concrete.

【0002】[0002]

【従来の技術】従来より、構造体コンクリートの圧縮強
度の検査方法としては、実際の構造物からコアを切り取
り、圧縮強度試験を行うことが規定されている。通常、
コアの切り取りは、コンクリート用コアドリルを使用し
て、コアドリル先端に設けられた堅固な刃先を高速で回
転させながら、構造物内部に挿入させ、所定の寸法のコ
ンクリート片を成形し、この供試体を切り取って、その
後に圧縮試験を行う方法が用いられている。
2. Description of the Related Art Conventionally, as a method for inspecting the compressive strength of structural concrete, it has been stipulated that a core is cut from an actual structure and a compressive strength test is performed. Normal,
To cut the core, use a core drill for concrete, insert the inside of the structure while rotating the solid cutting edge provided at the tip of the core drill at high speed, form a concrete piece of a predetermined size, and A method of cutting and then performing a compression test is used.

【0003】[0003]

【発明が解決しようとする課題】従来例によると、コア
の切り取りを行った場合に、切り取る途中で供試体が破
損したり、粗骨材がコンクリート母材から緩み、付着力
が低下するなどの理由から、構造物の圧縮強度を正確に
検査できない場合が多々ある。特に高強度コンクリート
による場合に問題が大きい。
According to the conventional example, when the core is cut, the specimen is damaged during the cutting, the coarse aggregate is loosened from the concrete base material, and the adhesive strength is reduced. For reasons, it is often not possible to accurately inspect the compressive strength of structures. The problem is particularly great when using high-strength concrete.

【0004】この発明の目的は、簡易にコンクリート構
造物の圧縮強度を正確に検査できるようにすることにあ
る。
An object of the present invention is to easily and accurately inspect the compressive strength of a concrete structure.

【0005】[0005]

【課題を解決するための手段】この発明においては、ま
ず構造体にコンクリートを打設してから、このコンクリ
ートが硬化する前に供試体切り取り予定位置へ所定寸法
の内径を有する筒体を挿入し、筒体内の中空部をコンク
リートで充填し、その後挿入した筒体の外周部の外側を
切り込みを入れて、外周部にコンクリートが付着された
筒体を切り出して、切り出し後に付着しているコンクリ
ート及び筒体を除去し、筒体内部の供試体となるコンク
リートを取り出して、これの圧縮試験を行うものであ
る。
According to the present invention, concrete is first poured into a structure, and then a cylinder having an inner diameter of a predetermined size is inserted into a specimen cutting planned position before the concrete is hardened. , Filling the hollow part in the cylinder with concrete, and then inserting a notch on the outside of the outer peripheral part of the inserted cylinder, cutting out the cylinder with concrete adhered to the outer peripheral part, and concrete adhering after cutting out and The cylinder is removed, the concrete to be the specimen inside the cylinder is taken out, and the compression test is performed.

【0006】[0006]

【作用】供試体は、筒体から完全な形で取出しが可能と
なり、圧縮精度が高められる。
[Function] The specimen can be taken out from the cylindrical body in a complete form, and the compression accuracy is improved.

【0007】[0007]

【実施例】以下この発明の実施例を図面を参照して説明
する。
Embodiments of the present invention will be described below with reference to the drawings.

【0008】図1(a)に示すように、まず構造体にコ
ンクリート1を打設した直後に、このコンクリートの供
試体の切り取り予定位置へ粗骨材最大寸法の3倍以上の
内径を有する塩化ビニール製の円筒2を挿入し、円筒内
の中空部をコンクリートで充填する。ついで、図1
(b)に示すように、挿入した円筒2の外周部のわずか
外側を切り込み3を入れて、図1(c)に示すように、
外周部にコンクリートが付着されたコンクリート付着円
筒4を切り出す。その後、コンクリート付着円筒4をそ
の長さ方向にダイヤモンドカッターなどの切断手段を用
いて、切断線5を入れて付着しているコンクリート及び
円筒2を除去して、図1(d)に示すように、円筒内部
の供試体となるコンクリート6を取り出す。そして円筒
2内部から取り出したコンクリート6について、圧縮強
度試験を実施し、これを構造体コンクリートの圧縮強度
とする。
As shown in FIG. 1 (a), immediately after the concrete 1 is cast into the structure, chloride having an inner diameter three times or more of the maximum size of the coarse aggregate is placed at the planned cutting position of the concrete specimen. The cylinder 2 made of vinyl is inserted, and the hollow part in the cylinder is filled with concrete. Then, Figure 1
As shown in (b), a notch 3 is made in the outer peripheral portion of the inserted cylinder 2 to make a cut, and as shown in FIG. 1 (c),
A concrete-attached cylinder 4 having concrete attached to the outer periphery is cut out. After that, the concrete adhering cylinder 4 is cut in the lengthwise direction by using a cutting means such as a diamond cutter to insert the cutting line 5 to remove the adhering concrete and the cylinder 2, and as shown in FIG. Then, the concrete 6 to be the specimen inside the cylinder is taken out. Then, a compressive strength test is performed on the concrete 6 taken out from the inside of the cylinder 2, and this is used as the compressive strength of the structural concrete.

【0009】円筒の他の例としては、図2に示すように
2個の半割り管12aで円筒12を構成し、両半割り管
を接着テープで結合してもよい。この例によれば、ダイ
ヤモンドカッターのような特殊な切断手段を使用するこ
となく、供試体6を取り出して圧縮試験を実施でき、し
かも供試体6を傷付けることがない。
As another example of the cylinder, as shown in FIG. 2, the cylinder 12 may be composed of two half-split tubes 12a, and both half-split tubes may be joined by an adhesive tape. According to this example, the sample 6 can be taken out and the compression test can be performed without using a special cutting means such as a diamond cutter, and the sample 6 is not damaged.

【0010】筒体は、円筒に限られない。The cylindrical body is not limited to a cylinder.

【0011】[0011]

【発明の効果】この発明によれば、筒体内から供試体を
取出すことができ、従来のようにドリル等により直接供
試体を切り出さないので、供試体の破損や粗骨材の緩み
が生じず、簡易に実際構造物の圧縮強度に近い試験結果
が得られる。
According to the present invention, the specimen can be taken out from the cylindrical body, and the specimen is not directly cut out by a drill or the like as in the conventional case, so that the specimen is not damaged and the coarse aggregate is not loosened. It is possible to easily obtain test results close to the compressive strength of the actual structure.

【図面の簡単な説明】[Brief description of drawings]

【図1】この発明の一実施例の工程を段階的に示す一部
切欠断面図である。
FIG. 1 is a partially cutaway sectional view showing steps of an embodiment of the present invention.

【図2】この発明の円筒の他の実施例及び使用例を示す
拡大平面図である。
FIG. 2 is an enlarged plan view showing another embodiment and usage example of the cylinder of the present invention.

【符号の説明】[Explanation of symbols]

1 コンクリート 2 筒体(円筒) 3 切り込み 4 コンクリート付着円筒 6 供試体(コンクリート) 12 筒体(円筒) 1 Concrete 2 Tube (Cylinder) 3 Notch 4 Concrete Attached Cylinder 6 Specimen (Concrete) 12 Tube (Cylinder)

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 構造体にコンクリートを打設した後に、
このコンクリートが硬化する前に供試体切り取り予定位
置へ所定寸法の内径を有する筒体を挿入し、筒体内の中
空部をコンクリートで充填し、その後挿入した筒体の外
周部の外側を切り込みを入れて、外周部にコンクリート
が付着された筒体を切り出し、切り出し後に、付着して
いるコンクリート及び筒体を除去して、筒体内部の供試
体となるコンクリートを取り出して、これの圧縮試験を
行うことを特徴とする供試体の検査方法。
1. After pouring concrete into the structure,
Before this concrete hardens, insert a cylinder with an inner diameter of a predetermined size into the intended cutting position of the specimen, fill the hollow part in the cylinder with concrete, and then make a notch on the outside of the outer periphery of the inserted cylinder Then, cut out the cylinder with concrete adhered to the outer circumference, remove the adhered concrete and the cylinder after cutting out, take out the concrete as the sample inside the cylinder, and perform a compression test on it. A method for inspecting a specimen, which is characterized in that
JP15883092A 1992-05-27 1992-05-27 Inspection method of specimen Pending JPH05332901A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15883092A JPH05332901A (en) 1992-05-27 1992-05-27 Inspection method of specimen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15883092A JPH05332901A (en) 1992-05-27 1992-05-27 Inspection method of specimen

Publications (1)

Publication Number Publication Date
JPH05332901A true JPH05332901A (en) 1993-12-17

Family

ID=15680326

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15883092A Pending JPH05332901A (en) 1992-05-27 1992-05-27 Inspection method of specimen

Country Status (1)

Country Link
JP (1) JPH05332901A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012093263A (en) * 2010-10-27 2012-05-17 Asuton:Kk Concrete test body and method for manufacturing the same
KR101503219B1 (en) * 2014-08-06 2015-03-17 한국지질자원연구원 Method for the quantitative evaluation of rock cleavage by mechanical properties of rock
JP2018173312A (en) * 2017-03-31 2018-11-08 太平洋セメント株式会社 Concrete structure and method for measuring penetration depth of deterioration factor thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012093263A (en) * 2010-10-27 2012-05-17 Asuton:Kk Concrete test body and method for manufacturing the same
KR101503219B1 (en) * 2014-08-06 2015-03-17 한국지질자원연구원 Method for the quantitative evaluation of rock cleavage by mechanical properties of rock
JP2018173312A (en) * 2017-03-31 2018-11-08 太平洋セメント株式会社 Concrete structure and method for measuring penetration depth of deterioration factor thereof

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