JPH0848556A - Machine foundation pad and its formation - Google Patents
Machine foundation pad and its formationInfo
- Publication number
- JPH0848556A JPH0848556A JP20826094A JP20826094A JPH0848556A JP H0848556 A JPH0848556 A JP H0848556A JP 20826094 A JP20826094 A JP 20826094A JP 20826094 A JP20826094 A JP 20826094A JP H0848556 A JPH0848556 A JP H0848556A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- pad
- parts
- cement
- foundation pad
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、機械基礎パッド及びそ
の成形方法、特に、早期強度発現性と無膨張無収縮性が
要求される機械基礎パッド及びその成形方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanical foundation pad and a method for molding the same, and more particularly to a mechanical foundation pad and a method for molding the same which require early development of strength and no expansion / contraction.
【０００２】[0002]
【従来の技術】機械を支持するための機械基礎パッドを
成形するための機械基礎パッド材としては、一般にモル
タルが使用されている。2. Description of the Related Art Mortar is generally used as a mechanical foundation pad material for forming a mechanical foundation pad for supporting a machine.
【０００３】従来、機械基礎パッドの成形方法として
は、セメントと骨材とを混合したプレミックスセメント
に、セメントの水和に必要とされる水のみを加えた硬練
りモルタルを使用し、ハンマー等で締め固めを行うドラ
イパッド工法や、セメント、骨材、及び無収縮材等を混
合したプレミックスセメントに、水を加えた流動性モル
タルを使用し、それを流し込むフロアブルパッド工法が
行われている(特開昭56−134545号公報、特開昭52−938
61号公報)。Conventionally, as a method of molding a mechanical foundation pad, a hard mortar in which only water necessary for hydration of cement is added to a premixed cement in which cement and aggregate are mixed is used, and a hammer or the like is used. The dry pad method is used for compaction, and the flowable pad method is used for pouring it into a premixed cement that mixes cement, aggregate, non-shrinkable material, etc. (JP-A-56-134545, JP-A-52-938
No. 61 bulletin).
【０００４】しかしながら、ドライパッド工法では、ハ
ンマー等でモルタルの締め固めを行うため、機械基礎パ
ッドを１基成形するのに非常に時間を要する等の課題が
あった。また、フロアブルパッド工法では、流動性モル
タルをせき止めるための型枠を作製設置しなければなら
ないため型枠作製に時間を要する等の課題があった。さ
らに、ドライパッド工法やフロアブルパッド工法とも
に、モルタル硬化まで６〜12時間を必要とし、モルタル
硬化までの間、周囲の振動や衝撃を極力防止するように
にしなければならず、そのため、熟練された作業者でな
ければ機械基礎パッドを成形できない等の課題があっ
た。However, in the dry pad construction method, since the mortar is compacted with a hammer or the like, it takes a very long time to mold one machine base pad. Further, in the flowable pad construction method, there is a problem that it takes time to manufacture the mold because a mold for holding the fluid mortar must be manufactured and installed. Furthermore, both the dry pad method and the flowable pad method require 6 to 12 hours for the mortar to harden, and it is necessary to prevent vibrations and impacts around the mortar until the mortar hardens. There is a problem that only the operator can form the mechanical foundation pad.
【０００５】本発明者は、作業者の負担の軽減、硬化時
間の調整を可能とし作業時間の短縮化、及び熟練工以外
でも機械基礎パッドの成形を可能にする技術の開発を試
みて種々検討を重ねた結果、特定の機械基礎材料を用い
る方法が有効であるとの知見を得て本発明を完成するに
至った。The inventor of the present invention attempts various developments by trying to develop a technique for reducing the burden on the operator, enabling the adjustment of the curing time to shorten the operation time, and enabling the molding of the mechanical foundation pad by a person other than a skilled worker. As a result of repeated studies, the inventors have found that a method using a specific mechanical base material is effective and completed the present invention.
【０００６】[0006]
【課題を解決するための手段】本発明は上記課題を解決
することを目的とし、その構成は、セメント、アルミノ
ケイ酸カルシウムガラス、セッコウ類、凝結遅延剤及び
重量骨材を主成分とする機械基礎用セメント組成物を原
料として成形されてなる機械基礎パッドであり、この機
械基礎用セメント組成物に水を添加し、１分以上混練し
た後、成形することを特徴とする。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and its constitution is a mechanical foundation mainly composed of cement, calcium aluminosilicate glass, gypsum, set retarder and heavy aggregate. A mechanical foundation pad formed from a cement composition for use as a raw material, which is characterized in that water is added to the cement composition for a mechanical foundation, and the mixture is kneaded for 1 minute or more and then molded.
【０００７】以下、本発明を詳しく説明する。本発明で
使用するセメントとしては、普通、早強、超早強、及び
中庸熱等の各種ポルトラルドセメントや、これらポルト
ランドセメントに、シリカ、高炉スラグまたはフライア
ッシュが混合された各種混合セメント等が挙げられる。The present invention will be described in detail below. As the cement used in the present invention, normal, early strength, ultra early strength, and various portard cements such as moderate heat, and these portland cement, silica, various mixed cement in which blast furnace slag or fly ash is mixed, etc. Can be mentioned.
【０００８】また、本発明で使用するアルミノケイ酸カ
ルシウムガラス（以下ＣＡＳガラスという）はＣａＯ質
原料、Ａｌ2 Ｏ3 質原料、及びＳｉＯ2 質原料の配合物
を溶融し、急冷してなるもので、ＣａＯ30〜60重量％、
Ａｌ2 Ｏ3 20〜60重量％、ＳｉＯ2 ５〜25重量％の組成
領域を持つものが好ましい。ＣａＯが30重量％未満、或
いは、Ａｌ2 Ｏ3 が60重量％を越えると急硬性に劣り、
逆に、ＣａＯが60重量％を超えるか、或いは、Ａｌ2 Ｏ
3 が20重量％未満であると、凝結遅延剤を多量添加して
も瞬結する傾向がある。また、ＳｉＯ2 が５重量％未満
であると、長期的な強度の伸びが期待できず、逆に25重
量％を越えると初期強度が小さくなる傾向がある。The calcium aluminosilicate glass (hereinafter referred to as CAS glass) used in the present invention is obtained by melting a mixture of CaO raw material, Al 2 O 3 raw material, and SiO 2 raw material and quenching it. , CaO 30-60% by weight,
Those having a composition range of 20 to 60% by weight of Al 2 O 3 and 5 to 25% by weight of SiO 2 are preferable. When CaO is less than 30% by weight or Al 2 O 3 exceeds 60% by weight, rapid hardening is poor,
Conversely, if CaO exceeds 60% by weight, or if Al 2 O
When 3 is less than 20% by weight, even if a large amount of the set retarder is added, there is a tendency for instantaneous setting. If SiO 2 is less than 5% by weight, long-term strength elongation cannot be expected, and conversely, if it exceeds 25% by weight, the initial strength tends to be small.
【０００９】ＣＡＳガラスの原料としては、ＣａＯ質原
料としては、生石灰（ＣａＯ）、消石灰（Ｃａ（Ｏ
Ｈ)2）及び石灰石（ＣａＣＯ3 ）等が挙げられ、Ａｌ2
Ｏ3 質原料として、アルミナ、ボーキサイト、ダイアス
ボア、長石及び粘土等が挙げられ、ＳｉＯ2 質原料とし
て、ケイ砂、白土及びケイ藻土等を挙げることができ
る。これらＣａＯ質原料、Ａｌ2 Ｏ3 質原料及びＳｉＯ
2 質原料を所定の割合で配合した後、直接通電式溶融
炉、或いは、高周波炉を用いて溶融し、得られた溶融体
を圧縮空気や高圧水により吹き飛ばす方法、或いは、水
中に流し込む方法により製造される。また、ロータリー
キルンで溶融し、急冷することによってもＣＡＳガラス
を製造することが可能である。As a raw material of CAS glass, CaO quality raw material is quick lime (CaO), slaked lime (Ca (O
H) 2) and limestone (CaCO 3), and the like, Al 2
Alumina, bauxite, diaspore, feldspar, clay and the like can be mentioned as the O 3 material, and silica sand, clay and diatomaceous earth can be mentioned as the SiO 2 material. These CaO material, Al 2 O 3 material and SiO
After blending the two quality raw materials in a predetermined ratio, it is melted using a direct current type melting furnace or a high frequency furnace, and the resulting melt is blown off with compressed air or high pressure water, or poured into water. Manufactured. It is also possible to produce CAS glass by melting in a rotary kiln and quenching.
【００１０】ＣＡＳガラスの粉末度は、細かければ細か
いほど反応性が向上するので細かいことが好ましく、ブ
レーン比表面積で 3,000 cm2／ｇ以上が特に好ましい。The fineness of the CAS glass is preferably fine because the finer the fineness, the more the reactivity is improved, and the Blaine specific surface area is particularly preferably 3,000 cm 2 / g or more.
【００１１】ＣＡＳガラスの使用量は、セメント１００
重量部に対して、５〜５０重量部が好ましい。５重量部
未満では、モルタルの硬化時間が長くなる傾向があり、
５０重量部を越えると、クラックが発生する傾向があ
る。The amount of CAS glass used is 100% cement.
5 to 50 parts by weight is preferable with respect to parts by weight. If it is less than 5 parts by weight, the curing time of the mortar tends to be long,
If it exceeds 50 parts by weight, cracks tend to occur.
【００１２】本発明で使用するセッコウ類としては、無
水、半水及び二水の各セッコウ類の一種又は二種以上の
使用が可能であり、このうち、II型の無水セッコウの使
用が強度発現性の面から特に好ましい。セッコウ類の粉
末度は、通常、 3,000 cm2／ｇ以上が好ましい。セッコ
ウ類の使用量は、セメント１００重量部に対して５〜５
０重量部が好ましく、１０〜３０重量部がより好まし
い。５重量部未満では強度発現性が不十分であり、５０
重量部を超えると膨張性を示し、クラックが発生した
り、強度が低下する傾向がある。As the gypsum used in the present invention, it is possible to use one kind or two or more kinds of anhydrous, semi-water and dihydrate gypsum. Among them, the use of type II anhydrous gypsum exhibits strength. From the viewpoint of sex, it is particularly preferable. Usually, the fineness of gypsum is preferably 3,000 cm 2 / g or more. The amount of gypsum used is 5 to 5 with respect to 100 parts by weight of cement.
0 parts by weight is preferable, and 10 to 30 parts by weight is more preferable. If the amount is less than 5 parts by weight, the strength developability is insufficient and 50
If it exceeds the parts by weight, expandability is exhibited, cracks tend to occur, and strength tends to decrease.
【００１３】本発明で使用する凝結遅延剤としては、塩
化カルシウム、塩化第二鉄、及び塩化アルミニウム等の
塩化物、アルミン酸ナトリウムやアルミン酸カリウムな
どのアルミン酸塩、炭酸ナトリウムや炭酸カリウムなど
の炭酸塩、水酸化ナトリウムや水酸化カルシウムなどの
水酸化物、並びに、ケイフッ化亜鉛、ケイフッ化マグネ
シウム及びケイフッ化ナトリウム等のケイフッ化物等の
無機塩類、更には、クエン酸、グルコン酸及び酒石酸等
又はこれらのカルシウム塩、ナトリウム塩及びカリウム
塩等の有機酸系化合物があり、これらを単独添加するこ
とも可能であり、二種以上を併用することも可能であ
る。凝結遅延剤の使用量は、ＣＡＳガラス１００重量部
に対して、０.1〜１０重量部が好ましく、０.5〜８.0重
量部がより好ましい。０.1重量部未満では瞬結する傾向
があり、１０重量部を越えると硬化時間が長引く傾向が
ある。Examples of the setting retarder used in the present invention include chlorides such as calcium chloride, ferric chloride and aluminum chloride, aluminates such as sodium aluminate and potassium aluminate, sodium carbonate and potassium carbonate. Carbonates, hydroxides such as sodium hydroxide and calcium hydroxide, and inorganic salts such as silicofluoride such as zinc silicofluoride, magnesium silicofluoride and sodium silicofluoride, and further citric acid, gluconic acid, tartaric acid and the like, or There are organic acid compounds such as calcium salts, sodium salts and potassium salts, and these can be added alone or in combination of two or more kinds. The setting retarder is used in an amount of preferably 0.1 to 10 parts by weight, more preferably 0.5 to 8.0 parts by weight, based on 100 parts by weight of CAS glass. If it is less than 0.1 part by weight, it will tend to cause instantaneous setting, and if it exceeds 10 parts by weight, the curing time will tend to be prolonged.
【００１４】本発明で使用する重量骨材は、比重２.9以
上の重量骨材が好ましく、比重３.1以上の重量骨材がよ
り好ましい。具体的には、磁鉄鉱、砂鉄、褐鉄鉱、赤鉄
鉱、重結晶、玄武岩及び粉砕スラグ等が挙げられる。重
量骨材の粒度は、各ふるい寸法の通過量が下記の範囲で
あることが好ましい。すなわち、５〜２.5mmが０〜１０
重量％、２.5〜１.2mmが５〜３０重量％、１.2〜０.6mm
が１５〜４０重量％、０.6〜０.3mmが５〜３０重量％、
０.3〜０.1５mmが１０〜３０重量％及び０.1５mm以下が
０〜２５重量％である。重量骨材の粒度がこの範囲外で
あると、機械基礎パッド成形時にモルタルの締まり具合
が悪く、機械基礎パッド成型後の変位量が多くなる傾向
がある。重量骨材の使用量は、セメント、ＣＡＳガラス
及びセッコウ類の合計１００重量部に対して、１００〜
４００重量部が好ましく、より好ましくは１５０〜３０
０重量部である。１００重量部未満ではモルタルにクラ
ックが発生する傾向があり、４００重量部を越えると、
モルタルの圧縮強度が低下する傾向がある。The weight aggregate used in the present invention is preferably a weight aggregate having a specific gravity of 2.9 or more, and more preferably a weight aggregate having a specific gravity of 3.1 or more. Specific examples thereof include magnetite, sand iron, limonite, hematite, heavy crystals, basalt and ground slag. Regarding the particle size of the heavy aggregate, it is preferable that the passing amount of each sieve size is within the following range. That is, 5 to 2.5 mm is 0 to 10
% By weight, 2.5 to 1.2 mm is 5 to 30% by weight, 1.2 to 0.6 mm
15-40% by weight, 0.6-0.3 mm is 5-30% by weight,
0.3 to 0.15 mm is 10 to 30% by weight, and 0.15 mm or less is 0 to 25% by weight. If the particle size of the heavy aggregate is outside this range, the tightness of the mortar during molding of the mechanical foundation pad tends to be poor, and the amount of displacement after molding of the mechanical foundation pad tends to increase. The amount of heavy aggregate used is 100 to 100 parts by weight of cement, CAS glass and gypsum.
It is preferably 400 parts by weight, more preferably 150 to 30
0 parts by weight. If it is less than 100 parts by weight, the mortar tends to crack, and if it exceeds 400 parts by weight,
The compressive strength of mortar tends to decrease.
【００１５】本発明では以上詳述したセメント、ＣＡＳ
ガラス、セッコウ類、凝結遅延剤及び重量骨材を混合し
て機械基礎材料とする。In the present invention, the cement and CAS detailed above are used.
Glass, gypsum, set retarder and heavy aggregate are mixed to form a machine base material.
【００１６】機械基礎パッド成形に使用する練混ぜ水
は、塩素系不純物を含んでいなければ、特に制限される
ものではない。水の使用量は、機械基礎材料１００重量
部に対して、８.0〜１０.5重量部であり、好ましくは
９.0〜１０.0重量部である。８.0重量部未満であると機
械基礎パッドの成形性に欠け、凝結時間が促進される傾
向があり、１０.5重量部を越えると機械基礎パッド成形
後にダレが生じ、機械基礎パッドのレベルを正確に出し
難く、凝結時間が延長される傾向がある。The mixing water used for forming the mechanical base pad is not particularly limited as long as it does not contain chlorine impurities. The amount of water used is 8.0 to 10.5 parts by weight, preferably 9.0 to 10.0 parts by weight, based on 100 parts by weight of the machine basic material. If it is less than 8.0 parts by weight, the moldability of the mechanical foundation pad tends to be poor and the setting time tends to be accelerated, and if it exceeds 10.5 parts by weight, sagging occurs after molding the mechanical foundation pad, and the level of the mechanical foundation pad It is difficult to put out accurately and the setting time tends to be extended.
【００１７】練混ぜ手順は限定されるものではないが、
好ましくは、機械基礎材料に所定の練混ぜ水を投入し、
撹拌することが望ましい。練混ぜ水に機械基礎材料を投
入し練混ぜを行うと、練混ぜ水の片寄りによって凝結時
間が促進、或いは延長されることがある。練混ぜ機器
は、短時間に機械基礎材料と練混ぜ水を混練りできるも
のであれば良く、特に限定されるものではなく、左官用
強制練りミキサー又はコンクリート強制練りミキサーな
どが挙げられる。練混ぜ時間は、１分以上を必要とし、
１〜４分が好ましく、２〜３分がより好ましい。１分未
満であると凝結時間が促進され好ましくなく、また、４
分以上であると施工時間の面で余分な時間を費やすこと
になり好ましくない。Although the kneading procedure is not limited,
Preferably, the predetermined mixing water is added to the machine base material,
It is desirable to stir. When the mechanical base material is added to the kneading water and kneading is performed, the setting time may be accelerated or extended due to the deviation of the kneading water. The kneading machine is not particularly limited as long as it can knead the mechanical base material and the kneading water in a short time, and examples thereof include a plasterer forced kneading mixer and a concrete forced kneading mixer. Mixing time requires 1 minute or more,
1-4 minutes are preferable, and 2-3 minutes are more preferable. If it is less than 1 minute, the setting time is accelerated, which is not preferable.
If it is more than a minute, extra time is spent in terms of construction time, which is not preferable.
【００１８】つぎに、機械基礎パッドの成形方法につい
て説明する。機械基礎パッドの成形には、型枠を使用す
る場合もあるが、全く用具を使用しない方法でも可能で
ある。型枠を使用する場合は、パッド型の型枠を施工場
所に設置し、内部に機械基礎パッド材を詰め込み、機械
据え付け時にパッドの集中荷重によるパッドの破損を防
止するため、パッドの上面にプレートを載せる。その
後、型枠を取り除き、プラスチックハンマーなどで、プ
レートを叩きながら、所定の高さ付近まで押し下げ、成
形後にレベルの調整を行う。型枠を使用しない場合は、
パッドの所定レベルより20〜30％高い位置まで機械基礎
パッド材を積み上げ、ライナーを載せた後に所定のレベ
ル付近まで押し下げ、成形した後にレベル調整を行う。
型枠を使用した場合及び使用しない場合のいずれであっ
ても施工時間には大差はないが、型枠を使用した場合の
ほうが若干早い。Next, a method of forming the mechanical foundation pad will be described. A mold may be used to mold the mechanical foundation pad, but it is also possible to use no tools at all. When using a formwork, install a padform formwork at the construction site, stuff the machine foundation pad material inside, and prevent the pad from being damaged due to the concentrated load of the pad during machine installation. Put. After that, the mold is removed, the plate is hit with a plastic hammer or the like, and the plate is pushed down to near a predetermined height, and the level is adjusted after molding. If no formwork is used,
The mechanical foundation pad material is piled up to a position 20 to 30% higher than the predetermined level of the pad, the liner is placed and then pushed down to near the predetermined level, and the level is adjusted after molding.
There is no big difference in the construction time whether the form is used or not, but it is slightly earlier when the form is used.
【００１９】機械基礎パッドの養生としては、濡れ雑巾
等による湿布養生やビニール等で、機械基礎パッドを覆
う養生などがある。養生を行なわなくても、レベルが下
がり機械を据え付けたときにガタが発生する不良パッド
となるようなことはないが、湿布養生すると、高さ７〜
１０cmの機械基礎パッドの場合、変位量が０.0１mm程度
に低下する。As the curing of the mechanical foundation pad, there are a curing method using a wet cloth or the like and a curing method that covers the mechanical foundation pad with vinyl or the like. Even if it is not cured, the level will not drop and it will not cause a loose pad when the machine is installed.
In the case of a 10 cm mechanical foundation pad, the displacement amount decreases to about 0.01 mm.
【００２０】[0020]
【実施例】以下、本発明を実施例によってさらに詳しく
説明する。EXAMPLES The present invention will be described in more detail below with reference to examples.
【００２１】〔実施例１〕セメント１００重量部、ＣＡ
Ｓガラス１３.5重量部、セッコウ類１３.5重量部、凝結
遅延剤０.4重量部、重量骨材２７０重量部及びこれら材
料の合計１００重量部に対し水９.5重量部を、容量５０
リットルの強制式左官用ミキサーで混合し、３分間練混
ぜ、機械基礎パッド材を作製した。作製した機械基礎パ
ッド材を、縦12cm、横22cmの上面部、縦16cm、横30cmの
底面部及び高さ１０cmの台形の型枠に打設した。型枠を
取外した後、上面部に、縦１０cm、横２０cm、厚さ１cm
のライナーを設置し、機械基礎パッドの高さが７cmにな
るように、ライナーの上からハンマーでたたき、機械基
礎パッドの上面部を押し下げ、上面を水平にし、側面を
コテを用いて滑らかにして、20℃、80％ＲＨで、機械基
礎パッドとした。機械基礎パッド材の凝結開始時間と、
機械基礎パッドの施工時間と変位量を測定し、その結果
を表１に示した。Example 1 100 parts by weight of cement, CA
S glass 13.5 parts by weight, gypsum 13.5 parts by weight, setting retarder 0.4 parts by weight, weight aggregate 270 parts by weight and water 9.5 parts by weight per 100 parts by weight of these materials in total, Fifty
The mixture was mixed with a liter forced plaster mixer and kneaded for 3 minutes to prepare a mechanical foundation pad material. The mechanical foundation pad material thus prepared was placed on a trapezoidal mold having a height of 12 cm, a width of 22 cm, a top surface of 16 cm, a width of 30 cm, and a height of 10 cm. After removing the formwork, the top is 10 cm long, 20 cm wide, and 1 cm thick.
Install the liner of, and hit it with a hammer from the top of the liner so that the height of the mechanical foundation pad is 7 cm, push down the upper surface of the mechanical foundation pad, make the upper surface horizontal, and use the iron to smooth the side surface. At 20 ° C. and 80% RH, a mechanical foundation pad was prepared. The setting start time of the mechanical foundation pad material,
The construction time and displacement of the mechanical foundation pad were measured, and the results are shown in Table 1.
【００２２】〔比較例１及び２〕比較例１として、セメ
ント１００重量部、骨材２００重量部及び水２５重量部
を配合して手練りした混練物を作製した。この作製した
混練物を使用したドライパッド工法で成形した機械基礎
パッドについて実施例１と同様の試験を行い表１に併記
した。比較例２として、セメント１００重量部、無収縮
材１５.5重量部、骨材２００重量部及びセメントと無収
縮材の合計１００重量部に対して水４４重量部を配合し
てハンドミキサーで混練した混練物を作製した。この混
練物を使用したフロアブルパッド工法で成形した機械基
礎パッドについて実施例１と同様の試験を行い表１に併
記した。Comparative Examples 1 and 2 As Comparative Example 1, 100 parts by weight of cement, 200 parts by weight of aggregate and 25 parts by weight of water were blended to prepare a kneaded product. The same test as in Example 1 was conducted on the mechanical base pad formed by the dry pad method using the kneaded material thus produced, and the results are shown in Table 1. As Comparative Example 2, 100 parts by weight of cement, 15.5 parts by weight of non-shrinking material, 200 parts by weight of aggregate, and 44 parts by weight of water were mixed with 100 parts by weight of cement and non-shrinking material and kneaded with a hand mixer. A kneaded product was prepared. The same test as in Example 1 was performed on the mechanical foundation pad formed by the floorable pad method using this kneaded product, and the results are shown in Table 1.
【００２３】なお、使用材料は下記の通りである。 セメント ：電気化学工業（株）製普通ポルトランド
セメント ＣＡＳガラス：ＣａＯ４０.5重量％、Ａｌ2 Ｏ3 ３６.1
重量％、ＳｉＯ2 １１.3重量％、ブレーン値 5,690 cm2
／ｇ セッコウ類 ：市販無水セッコウ類、ブレーン値 6,200
cm2／ｇ 重量骨材 ：市販スラグ系重量骨材、比重３.1０、上
記ふるいを用いて測定した粒度は２.5〜１.2mmが２０重
量％、１.2〜０．６mmが３０重量％、０.6〜０.3mmが１
５重量％、０.3〜０.1５mmが２０重量％及び０.1５mm通
過が１５重量％ 骨材 ：新潟県姫川産細骨材The materials used are as follows. Cement: Ordinary Portland cement manufactured by Denki Kagaku Co., Ltd. CAS glass: CaO 40.5% by weight, Al 2 O 3 36.1
% By weight, 11.3% by weight of SiO 2 , Blaine value 5,690 cm 2
/ G Gypsum: Commercial anhydrous gypsum, Blaine value 6,200
cm 2 / g weight aggregate: commercially available slag-based weight aggregate, specific gravity 3.10, particle size measured using the above sieve is 20% by weight from 2.5 to 1.2 mm, 30 from 1.2 to 0.6 mm % By weight, 0.6-0.3mm is 1
5% by weight, 0.3 to 0.15 mm is 20% by weight and 0.15 mm is 15% by weight Aggregate: Fine aggregate from Himekawa, Niigata Prefecture
【００２４】試験方法は下記の方法によった。 凝結開始時間 ：熱電対自動温度記録計によりモルタル
温度を測定し、練り上がりより１℃上昇するまでの時間
とした。 変位量 ：パッド成形後にモルタル上部に１／1,
000 mm精度のダイヤルゲージを据え付け、２４時間後の
変位量を測定した。The test method was as follows. Setting time of condensation: The mortar temperature was measured with a thermocouple automatic temperature recorder, and it was the time until the temperature increased by 1 ° C from the kneading. Displacement: 1/1 on top of mortar after pad molding
A dial gauge with an accuracy of 000 mm was installed and the amount of displacement after 24 hours was measured.
【００２５】[0025]
【表１】 [Table 1]
【００２６】〔実施例２、３及び４〕表２に示すように
水の使用量を変化させ、機械基礎パッド材の凝結開始時
間と、機械基礎パッドの圧縮強度と変位量を測定したこ
と以外は実施例１と同様に試験を行い、その結果を表２
に示した。なお、比較例１のドライパッド工法の結果を
表２に併記した。[Examples 2, 3 and 4] As shown in Table 2, except that the amount of water used was changed and the condensation start time of the mechanical foundation pad material and the compressive strength and displacement amount of the mechanical foundation pad were measured. Was tested in the same manner as in Example 1, and the results are shown in Table 2.
It was shown to. The results of the dry pad method of Comparative Example 1 are also shown in Table 2.
【００２７】[0027]
【表２】 [Table 2]
【００２８】〔実施例５〜８〕機械基礎パッド材１００
重量部に対して、９.5重量部の練混ぜ水を使用し練混ぜ
時間を表３に示すように変化したこと以外は実施例１と
同様に試験を行い、その結果を表３に示した。比較例１
のドライパッド工法の結果を表３に併記した。[Examples 5 to 8] Mechanical foundation pad material 100
A test was performed in the same manner as in Example 1 except that 9.5 parts by weight of mixing water was used and the mixing time was changed as shown in Table 3, and the results are shown in Table 3. It was Comparative Example 1
Table 3 also shows the results of the dry pad method.
【００２９】[0029]
【表３】 [Table 3]
【００３０】[0030]
【発明の効果】本発明により、作業時間の短縮や硬化時
間の調整を可能とし、成形品の寸法安定性を向上し、作
業者の労働力の軽減を図ることができた。According to the present invention, the working time can be shortened and the curing time can be adjusted, the dimensional stability of the molded product can be improved, and the labor of the worker can be reduced.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０４Ｂ 20:00） Ｂ 103:20 111:32 111:34 (72)発明者 半田 実 新潟県西頸城郡青海町大字青海2209番地電 気化学工業株式会社青海工場内 (72)発明者 武村 敬三 広島県広島市西区観音新町４丁目６番22号 三菱重工業株式会社広島製作所内 (72)発明者 兼本 弘治 広島県広島市西区観音新町４丁目６番22号 三菱重工業株式会社広島製作所内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification number Office reference number FI technical display location C04B 20:00) B 103: 20 111: 32 111: 34 (72) Inventor Minoru Handa Nishikubiki 2209 Aomi, Aomi-machi, Aochi District Aoki Factory, Aomi Plant (72) Inventor Keizo Takemura 4-6-22 Kannon Shinmachi, Nishi-ku, Hiroshima-shi, Hiroshima Mitsubishi Heavy Industries Ltd. (72) Inventor and head Koji 4-6-22 Kannon Shinmachi, Nishi-ku, Hiroshima City, Hiroshima Prefecture Mitsubishi Heavy Industries Ltd. Hiroshima Works
Claims (2)
ラス、セッコウ類、凝結遅延剤及び重量骨材を主成分と
する機械基礎用セメント組成物を原料として成形されて
なる機械基礎パッド。1. A machine foundation pad formed by using as a raw material a cement composition for a machine foundation, which comprises cement, calcium aluminosilicate glass, gypsum, a set retarder and a heavy aggregate as a main component.
ラス、セッコウ類、凝結遅延剤及び重量骨材を主成分と
する機械基礎用セメント組成物に水を添加し、１分以上
混練した後、成形することを特徴とする機械基礎パッド
の成形方法。2. Water is added to a cement composition for a machine base mainly composed of cement, calcium aluminosilicate glass, gypsum, setting retarder and heavy aggregate, and the mixture is kneaded for 1 minute or more and then molded. A characteristic method of forming a mechanical foundation pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20826094A JP3350238B2 (en) | 1994-08-10 | 1994-08-10 | Mechanical base pad and molding method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20826094A JP3350238B2 (en) | 1994-08-10 | 1994-08-10 | Mechanical base pad and molding method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0848556A true JPH0848556A (en) | 1996-02-20 |
| JP3350238B2 JP3350238B2 (en) | 2002-11-25 |
Family
ID=16553299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20826094A Expired - Lifetime JP3350238B2 (en) | 1994-08-10 | 1994-08-10 | Mechanical base pad and molding method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3350238B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001199754A (en) * | 1999-11-12 | 2001-07-24 | Onoda Co | Mortar composition |
| JP2002321961A (en) * | 2001-04-27 | 2002-11-08 | Taiheiyo Material Kk | Heavy weight mortar |
-
1994
- 1994-08-10 JP JP20826094A patent/JP3350238B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001199754A (en) * | 1999-11-12 | 2001-07-24 | Onoda Co | Mortar composition |
| JP2002321961A (en) * | 2001-04-27 | 2002-11-08 | Taiheiyo Material Kk | Heavy weight mortar |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3350238B2 (en) | 2002-11-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5784002B2 (en) | Cement composition for repair, cement mortar material for repair using the same, and cement mortar for repair | |
| JP2708697B2 (en) | Fast hydraulic binder | |
| JP4519985B2 (en) | Super fast hard non-shrink grout material | |
| JP3638308B2 (en) | Cement composition | |
| JP3350238B2 (en) | Mechanical base pad and molding method thereof | |
| JP3199454B2 (en) | Cement admixture and cement composition | |
| JP3494238B2 (en) | Cement admixture, cement composition, and chemical prestressed concrete using the same | |
| JP2928312B2 (en) | Cement composition for cast-in-place lining method and tunnel construction method using the same | |
| US20220204405A1 (en) | Hydraulic binder composition | |
| JP3105224B2 (en) | Cement admixture | |
| JP4145378B2 (en) | Wet spraying method | |
| JP2776854B2 (en) | Rapid hardened concrete | |
| JP3367576B2 (en) | Hydration heat generation time adjusting material for cement and cement composition | |
| JP3241056B2 (en) | Cement composition for cast-in-place lining method and tunnel construction method using the same | |
| JP7260705B1 (en) | Curing accelerator for hydraulic material, cement composition, and hardened body | |
| JP2983696B2 (en) | Cement admixture and cement composition | |
| JPH0891894A (en) | Cement admixture and cement composition | |
| JP4093622B2 (en) | Quick setting sprayed concrete and spraying method using the same | |
| JP2983706B2 (en) | Centrifugal compact | |
| JPH02302352A (en) | Rapid hardening type self-leveling composition for floor covering material | |
| JP3219161B2 (en) | Cement admixture and cement composition | |
| EP4301714A1 (en) | Concrete composition for railway foundations | |
| JP4476699B2 (en) | Cement composition for secondary tunnel lining | |
| JPH0388754A (en) | Cast-in-place lining concrete composition and executing method therefor | |
| JPH10330147A (en) | Spraying material, concrete for spraying and spraying method using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20020903 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313117 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090913 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100913 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100913 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110913 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120913 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120913 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130913 Year of fee payment: 11 |
|
| EXPY | Cancellation because of completion of term |