JPS62113040A - Method and apparatus for sampling concrete kneading water - Google Patents
Method and apparatus for sampling concrete kneading waterInfo
- Publication number
- JPS62113040A JPS62113040A JP25196485A JP25196485A JPS62113040A JP S62113040 A JPS62113040 A JP S62113040A JP 25196485 A JP25196485 A JP 25196485A JP 25196485 A JP25196485 A JP 25196485A JP S62113040 A JPS62113040 A JP S62113040A
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- pipe
- negative pressure
- kneading water
- mixing water
- 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
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、コンクリートを評価するためにコンクリート
中から混練水を採取する、コンクリート混練水の採取技
術に関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a concrete mixing water sampling technique for collecting mixing water from concrete in order to evaluate concrete.
〈従来の技術〉
コンクリートの施工管理を行う上で、コンクリート構造
物の耐久性に悪影響を与える塩分、溶存アルカリ金属、
アルカリ土類金属等の含有量を計測してコンクリートの
性質を評価する必要がある。<Conventional technology> When managing concrete construction, it is important to avoid salt, dissolved alkali metals, and other substances that adversely affect the durability of concrete structures.
It is necessary to evaluate the properties of concrete by measuring the content of alkaline earth metals, etc.
従来、コンクリートの性質を評価する方法としては、前
記有害成分が混練水中に含有していることに着目し、混
練水の成分を分析して行われている。Conventionally, as a method for evaluating the properties of concrete, attention has been paid to the fact that the above-mentioned harmful components are contained in the mixing water, and the components of the mixing water are analyzed.
コンクリート中の混練水から分析する方法としては例え
ば、コンクリート中に直接塩分針を挿入して測定する方
法や、遠心分離法、加圧濾過法等によって採取した混練
水を分析して評価する評価方法等が存在する。Methods for analyzing the mixing water in concrete include, for example, a method in which salinity is measured by directly inserting a salt needle into the concrete, and an evaluation method in which the mixing water collected by centrifugation, pressure filtration, etc. is analyzed and evaluated. etc. exist.
く本発明が解決しようとする問題点〉
上記したいずれのコンクリートの評価方法も、測定結果
にばらつきがあって分析結果の信頼性が低い。Problems to be Solved by the Present Invention> All of the above-described concrete evaluation methods have variations in measurement results, and the reliability of the analysis results is low.
さらに、装置が大掛かりとなって現場での施工管理には
不向きである。Furthermore, the equipment is large-scale, making it unsuitable for on-site construction management.
〈本発明の目的〉
本発明は以上の問題点を解決するためになされたもので
、コンクリート混練水の採取に手数がかからず、高い分
析精度が得られ、かつ、運搬や取り扱いが容易なコンク
リート混練水の採取方法および採取装置を提供すること
を目的とする。<Objective of the present invention> The present invention has been made to solve the above problems, and it is possible to obtain concrete mixing water without any trouble, to obtain high analytical accuracy, and to be easy to transport and handle. The purpose of the present invention is to provide a method and device for collecting concrete mixing water.
〈本発明の構成〉
以下、図面を参照しながら本発明の一実施例について説
明する。<Configuration of the Present Invention> An embodiment of the present invention will be described below with reference to the drawings.
くイ〉採取原理
本発明は、コンクリート中に直接、負圧吸引装置に接続
した管を挿入して、異物の吸引を阻止しなから混練水の
みを真空吸引して採取する方式である。2) Collection principle The present invention is a method in which a pipe connected to a negative pressure suction device is directly inserted into the concrete, and only the mixing water is vacuum-suctioned and collected without preventing the suction of foreign matter.
く口〉採取装置の全体の説明 第１図に採取装置１を示す。〉Overall explanation of the collection device FIG. 1 shows a sampling device 1.
この採取装置１は、負圧吸引部２と、この負圧吸引部２
に接続する負圧パイプ３と、負圧パイプ３の途上の採取
容器４および負圧パイプ３の先端に設けたフィルター５
で構成する。This sampling device 1 includes a negative pressure suction section 2 and a negative pressure suction section 2.
A negative pressure pipe 3 connected to the negative pressure pipe 3, a collection container 4 in the middle of the negative pressure pipe 3, and a filter 5 provided at the tip of the negative pressure pipe 3.
Consists of.
くハ〉負圧吸引部
本実施例では、負圧吸引部２を公知のハンドポンプを使
用した場合について説明するが、その他の真空ポンプ等
の使用も可能である。(c) Negative Pressure Suction Section In this embodiment, a case will be described in which a known hand pump is used as the negative pressure suction section 2, but other vacuum pumps or the like may also be used.
〈二〉採取容器
採取容器４は、コンクリート中から採取した混練水を貯
蔵する目的の有底式の容器であり、上口にはゴム等から
なるパツキン４１をして閉塞する。<2> Collection container The collection container 4 is a bottomed container for storing the mixing water collected from the concrete, and the upper opening is closed with a packing 41 made of rubber or the like.
採取容器４内に、負圧吸引部２に接続した負圧パイプ３
をパツキン４１を貫通させて採取容器４内に案内する。Inside the collection container 4, there is a negative pressure pipe 3 connected to the negative pressure suction unit 2.
is passed through the packing 41 and guided into the collection container 4.
さらに、別途の負圧パイプ３の一端を採取容器４内に案
内して、パツキン４１に連続性を持たせる。Furthermore, one end of the separate negative pressure pipe 3 is guided into the collection container 4 to provide continuity to the gasket 41.
くホ〉フィルター
負圧パイプ３の先端に設けたフィルター５は、セメント
ペーストの粒径以下の細孔を有し、混練水以外の異物の
通過を阻止する目的の濾過材である。Filter 5 The filter 5 provided at the tip of the negative pressure pipe 3 has pores smaller than the particle size of the cement paste, and is a filtration material for the purpose of blocking the passage of foreign substances other than kneading water.
フィルター５としては例えば、ガラス、プラスチック、
ソフトセラミック等を使用できる。As the filter 5, for example, glass, plastic,
Soft ceramic etc. can be used.
なお、コンクリート中に直接挿入する負圧パイプ３に充
分な硬度が期待できない場合には、硬質パイプ３に硬質
材６を設けて挿入を容易にすることができる。Note that if the negative pressure pipe 3 that is directly inserted into concrete cannot be expected to have sufficient hardness, a hard material 6 can be provided on the hard pipe 3 to facilitate insertion.
〈へ〉採取方法別分析例の比較検討
塩分の含有量を分析するに際し、本発明に係る採取装Ｗ
１を使用して採取した混練水を電位差滴定装置を用いて
分析したデータと、従来の塩１分計測計をコンクリート
中に直接挿入して測定したデータとを比較した。<F> Comparative study of analysis examples by sampling method When analyzing the salt content, the sampling device W according to the present invention
The data obtained by analyzing the kneading water collected using No. 1 using a potentiometric titration device was compared with the data measured by directly inserting a conventional 1-minute salt meter into concrete.
なお、使用した塩分針、電位差滴定装置およびコンクリ
ートは次の通りである。The salt needle, potentiometric titration device, and concrete used were as follows.
（塩分針） ＨＯＲＴ ＢＡ Ｖ−７ｃｅ（電位差滴
定装置）三菱化成工業■ ＧＴ−０１（コンクリート）
水セメント比＝６０％
単位水量：２０５ｋｇ
５／ａ：５０％
粗骨材：２０＋ｎｎ＋
（比較結果の検討）
上記の表からも明らかなように、本発明の採取装置１を
使用して採取した混練水を分析したデータはばらつきも
なく、また分析データも正確である。(Salinity needle) HORT BA V-7ce (potentiometric titration device) Mitsubishi Chemical Corporation ■ GT-01 (concrete) Water-cement ratio = 60% Unit water amount: 205 kg 5/a: 50% Coarse aggregate: 20 + nn + (Study of comparison results ) As is clear from the above table, there is no variation in the data obtained by analyzing the kneading water collected using the sampling device 1 of the present invention, and the analytical data is also accurate.
塩分針を用いて計測した測定データが不正確でばらつき
があるのは、塩分針を構成する塩素イオン電極の表面に
骨材が直接接触するためであると考えられる。The reason why the measurement data measured using the salinity needle is inaccurate and variable is thought to be because the aggregate comes into direct contact with the surface of the chloride ion electrode that makes up the salinity needle.
く効果〉
本発明は以上説明したようになるから、次のような効ｖ
４得ることができる。Effects> Since the present invention is as explained above, it has the following effects.
4 can be obtained.
くイ）装置の軽量化が可能であるから、運搬性、に優れ
ており、現場での採取作業に好適である。(b) Since the device can be made lightweight, it has excellent transportability and is suitable for on-site collection work.
（ｒ＋ ）本発明の採取装置で採取した混練水は、従来
の方法で分析した分析データに比へてはるかに正確な分
析データが得られる。(r+) The kneading water collected by the sampling device of the present invention provides much more accurate analytical data than that analyzed by conventional methods.
（ハ）フィルターイ４きの負圧パイプをコンクリート中
に挿入して、混練水を真空吸引するだけの操作で済み、
採取操作に手数がかからない。(c) All you have to do is insert a filter-type negative pressure pipe into the concrete and vacuum-suction the mixing water.
The collection operation does not take much effort.
第１図：採取装置の説明図 Figure 1: Illustration of the collection device
Claims (2)
ーを設け、 負圧吸引装置の吸引力によってコンクリート中の混練水
を採取する、 コンクリート混練水の採取方法(1) A method for collecting concrete mixing water, in which a filter is installed at the end of a pipe connected to a negative pressure suction device, and the mixing water in the concrete is collected using the suction force of the negative pressure suction device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25196485A JPS62113040A (en) | 1985-11-12 | 1985-11-12 | Method and apparatus for sampling concrete kneading water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25196485A JPS62113040A (en) | 1985-11-12 | 1985-11-12 | Method and apparatus for sampling concrete kneading water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62113040A true JPS62113040A (en) | 1987-05-23 |
Family
ID=17230606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25196485A Pending JPS62113040A (en) | 1985-11-12 | 1985-11-12 | Method and apparatus for sampling concrete kneading water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62113040A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01172731A (en) * | 1987-12-26 | 1989-07-07 | Hokuriku Nogyo Shikenjo | Sampling method of soil solution utilizing vacuum sucking tube |
| US4982614A (en) * | 1988-05-28 | 1991-01-08 | Eppendorf-Netheler-Hinz Gmbh | Process of taking liquid from large-volume, deep vessels by means of sucking vessels and auxiliary sucking device for use with large-volume, deep vessels in carrying out that process |
| JPH03115838U (en) * | 1990-03-12 | 1991-12-02 | ||
| CN102879229A (en) * | 2012-09-17 | 2013-01-16 | 四川省农业科学院土壤肥料研究所 | Method for in situ measuring saturated solution nutrients of submersed paddy field through suction filtration method |
-
1985
- 1985-11-12 JP JP25196485A patent/JPS62113040A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01172731A (en) * | 1987-12-26 | 1989-07-07 | Hokuriku Nogyo Shikenjo | Sampling method of soil solution utilizing vacuum sucking tube |
| US4982614A (en) * | 1988-05-28 | 1991-01-08 | Eppendorf-Netheler-Hinz Gmbh | Process of taking liquid from large-volume, deep vessels by means of sucking vessels and auxiliary sucking device for use with large-volume, deep vessels in carrying out that process |
| JPH03115838U (en) * | 1990-03-12 | 1991-12-02 | ||
| CN102879229A (en) * | 2012-09-17 | 2013-01-16 | 四川省农业科学院土壤肥料研究所 | Method for in situ measuring saturated solution nutrients of submersed paddy field through suction filtration method |
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