JPH0388755A - Quick hardening injection material and cement composition for injection with it utilized therefor - Google Patents
Quick hardening injection material and cement composition for injection with it utilized thereforInfo
- Publication number
- JPH0388755A JPH0388755A JP22437189A JP22437189A JPH0388755A JP H0388755 A JPH0388755 A JP H0388755A JP 22437189 A JP22437189 A JP 22437189A JP 22437189 A JP22437189 A JP 22437189A JP H0388755 A JPH0388755 A JP H0388755A
- Authority
- JP
- Japan
- Prior art keywords
- injection
- cement
- particle size
- cement composition
- injection material
- 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
- 239000007924 injection Substances 0.000 title claims abstract description 45
- 238000002347 injection Methods 0.000 title claims abstract description 45
- 239000000463 material Substances 0.000 title claims abstract description 41
- 239000004568 cement Substances 0.000 title claims abstract description 38
- 239000000203 mixture Substances 0.000 title claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 18
- 229910052920 inorganic sulfate Inorganic materials 0.000 claims abstract description 7
- -1 calcium aluminates Chemical class 0.000 claims description 8
- 229910052791 calcium Inorganic materials 0.000 claims description 7
- 239000011575 calcium Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 abstract description 10
- 238000000926 separation method Methods 0.000 abstract description 6
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 abstract description 5
- 230000001105 regulatory effect Effects 0.000 abstract 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 238000000034 method Methods 0.000 description 11
- 239000004576 sand Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 239000011398 Portland cement Substances 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 150000007524 organic acids Chemical class 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- RGHNJXZEOKUKBD-SQOUGZDYSA-N D-gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000001509 sodium citrate Substances 0.000 description 2
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 2
- 241000554155 Andes Species 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 1
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 239000011400 blast furnace cement Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000000174 gluconic acid Substances 0.000 description 1
- 235000012208 gluconic acid Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野〕
本発明は急硬注入材及びそれを用いた注入用セメント岨
戒物に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a rapidly hardening injection material and an injection cement compound using the same.
〔従来の技術と解決すべき課題］
従来、セメントを早期に硬化させる注入工法として、カ
ルシウムアルミネート等を主成分としたセメント急硬材
を用いる方法が提案されている（特公昭５７−１００５
８号公報）。[Conventional technology and problems to be solved] Conventionally, as an injection method for rapidly hardening cement, a method using cement rapid hardening material containing calcium aluminate as a main component has been proposed (Special Publication No. 57-1005).
Publication No. 8).
しかしながら、通常使用されるセメント急硬材の粒度は
、ブレーン値で４ 、５００〜５．０ＯＯｃｄ／ｇであ
り、注入施工を実施する場合、注入する地盤の状態が細
砂、シルト又は粘土では、注入不可能な場合があるなど
のｙＡ８があった。However, the particle size of the commonly used cement rapid hardening material is 4,500 to 5.0OOcd/g in Blaine value, and when performing injection construction, if the ground condition is fine sand, silt, or clay, There was a case of yA8 that could not be injected in some cases.
また、ペースト又はモルタルを注入する場合、ポンプ圧
送性能や注入性能向上のため、流動性を高める必要があ
り、必然的に水量が上がり、材料分離が激しく、硬化後
の耐久性が期待できないなどの課題があった。In addition, when injecting paste or mortar, it is necessary to increase fluidity in order to improve pump pumping performance and injection performance, which inevitably increases the amount of water, causes severe material separation, and makes it impossible to expect durability after curing. There was an issue.
さらに、ポルトランドセメント又は混合セメントを用い
たペースト又はモルタルと、予め水と混練りしたセメン
ト急硬材を混合注入した場合も材料の分離が激しいとい
う課題があったつ本発明者らは、上記従来の課題を解決
すべく穐々検討した結果、特定の材料を使用することに
よって注入性状を良好にし、材料分離を低減できる知見
を得て本発明を完成するに至った。Furthermore, when a paste or mortar using portland cement or mixed cement is mixed and injected with a cement rapid hardening material that has been kneaded with water in advance, there is a problem in that the materials separate severely. As a result of extensive study to solve the problem, we have completed the present invention by obtaining the knowledge that by using a specific material, injection properties can be improved and material separation can be reduced.
［題を解決するための手段］
即ち、本発明はカルシウムアルミネート類と無ａ硫酸塩
を主成分とし、粒度が４０ｕＭ以下である急硬注入材で
あり、さらに、これと粒度が４０μ畢以下のセメントを
主成分とする注入用セメントＭｉ戒物である。[Means for Solving the Problem] That is, the present invention is a rapid hardening injection material which mainly contains calcium aluminates and non-alpha sulfates and has a particle size of 40 μM or less, and further has a particle size of 40 μM or less. This is an injectable cement Mi Kaimono whose main component is cement.
以下本発明の詳細な説明する。The present invention will be explained in detail below.
本発明で使用するカルシウムアルミネート類とは、結晶
質もしくは非晶質のカルシウムアルミネート、又は、こ
れに、フン化カルシウムなどを固溶したカルシウムハロ
アル電ネートであり、そのうち、化学式で３ＣａＯ−３
ＡｉｘＯｓ−ＣａＦｘと示される鉱物を主成分とするも
のが特に好ましい。The calcium aluminates used in the present invention are crystalline or amorphous calcium aluminates, or calcium haloalternates in which calcium fluoride or the like is solidly dissolved, and among these, the chemical formula is 3CaO- 3
Particularly preferred is one whose main component is a mineral indicated as AixOs-CaFx.
また無機硫酸塩は無水、半水及び三水のセラコラや硫酸
ナトリウムなどの硫酸塩を示し、なかでも無水センコラ
の使用は好ましい。The inorganic sulfate includes sulfates such as anhydrous, hemihydrous and trihydrous ceracola and sodium sulfate, among which it is preferable to use anhydrous ceracola.
無機硫酸塩の使用量は、カルシウムアル逅ネート類１重
量部に対して、０．１〜５重量部が好ましく、０．５〜
１．５重量部がより好ましい、０．ｉ重量部未満では急
硬性が強すぎ、強度も低下する傾向がある。一方、５重
量部を越えると長期にわたって膨張し、強度低下の原因
ともなるおそれがある。The amount of inorganic sulfate used is preferably 0.1 to 5 parts by weight, and 0.5 to 5 parts by weight, per 1 part by weight of calcium alkalinates.
1.5 parts by weight is more preferred, 0. If the amount is less than i parts by weight, the hardness will be too strong and the strength will tend to decrease. On the other hand, if it exceeds 5 parts by weight, it may expand over a long period of time and cause a decrease in strength.
本発明の急硬注入材に凝結遅延剤及び／又は急硬促進剤
を添加し、施工の際の凝結時間を任意に設定することが
可能である。It is possible to add a setting retardant and/or a rapid hardening accelerator to the rapid hardening injection material of the present invention, and to arbitrarily set the setting time during construction.
凝結遅延剤としては、グルコン酸やクエン酸ナトリウム
などの有機酸又はその塩、さらに、これらの有機酸と、
炭酸ナトリウム、炭酸マグネシウム、炭酸カリウム及び
炭酸カルシウム等の炭酸塩や、水酸化カリウムや水酸化
カルシウムなどの水酸化物との混合物などが使用できる
。As the setting retarder, organic acids such as gluconic acid and sodium citrate or their salts, and these organic acids and
Carbonates such as sodium carbonate, magnesium carbonate, potassium carbonate, and calcium carbonate, and mixtures with hydroxides such as potassium hydroxide and calcium hydroxide can be used.
急硬促進剤としては、塩化カルシウムなどのアルカリ土
類金属塩や塩化ナトリウムなどのアルカリ金属塩が使用
できる。As the rapid hardening accelerator, alkaline earth metal salts such as calcium chloride and alkali metal salts such as sodium chloride can be used.
凝結遅延剤及び／又は急硬促進剤の使用量は、急硬注入
材を予め水と混和した急硬注入材スラリーを用いるとき
は、それ自体が少なくとも３゜分、好ましくは数時間凝
結しないが、全材料を混合すると数１０分以内に凝結硬
化が開始するように定めればよく、一般的には、急硬注
入材ＬＯＯ菫量部に対して、１〜３重量部程度が好まし
い。The amount of setting retarder and/or rapid hardening accelerator to be used is such that, when using a rapid hardening injection material slurry in which the rapid hardening injection material is mixed with water in advance, the setting retarder and/or quick setting accelerator do not set themselves for at least 3°, preferably several hours. It is sufficient to set the amount so that setting and hardening starts within several tens of minutes after all the materials are mixed, and generally, it is preferably about 1 to 3 parts by weight based on the violet part of the rapid hardening injection material LOO.
急硬注入材の使用量は、所望の凝結時間に応して選択で
きるが、セメント１００重量部に対して。５〜５０重量
部が好ましく、２０〜３０重量部がより好ましい、急硬
注入材の使用量が５重量部未満では急硬使用が弱く、５
０重量部を越えても使用しても、使用効果が期待できず
経済的でない。The amount of rapid hardening injection material used can be selected depending on the desired setting time, but is based on 100 parts by weight of cement. It is preferably 5 to 50 parts by weight, more preferably 20 to 30 parts by weight. If the amount of the rapid hardening injection material used is less than 5 parts by weight, the rapid hardening is weak,
Even if it is used in excess of 0 parts by weight, no effect can be expected and it is not economical.
急硬注入材の粒度は粒子の最大粒径が４０μ慣以下であ
り、好ましくは２０ｕ１１以下、より好ましくは１０μ
敦以下である。４０μ雷を越えると、微細な部分への注
入が困難になったり、材料分離が発生する等の悪影響を
与える。The particle size of the rapidly hardening injection material is such that the maximum particle size of the particles is 40μ or less, preferably 20μ11 or less, and more preferably 10μ.
He is below Atsushi. If it exceeds 40μ, it will become difficult to implant into minute parts, and there will be adverse effects such as material separation.
本発明で使用するセメントとは、普通・早強・超早強な
どの各種ポルトランドセメント、又は、高炉セメント、
フライアッシュセメントなどの各種混合セメントの、粒
度を最大粒径４０μ層以下にしたものであり、４０μ曽
を越えると、微細な部分への注入が困難となったり、材
料分離が発生する等の悪影響があり好ましくない。The cement used in the present invention includes various types of Portland cement such as normal, early strength, and super early strength, or blast furnace cement,
The particle size of various mixed cements such as fly ash cement is reduced to a maximum particle size of 40μ or less.If the particle size exceeds 40μ, it may be difficult to inject into fine parts or material separation may occur. This is not desirable.
各材料の混練り方法は、特に限定されるものではなく、
急硬注入材とセメントを予め粉体で混合し、その抜水を
入れ混練りする方法や、急硬注入材とセメントを別々に
水と混練りしておく方法などが可能である。The method of kneading each material is not particularly limited,
Possible methods include a method in which the rapid-hardening injection material and cement are mixed in powder form in advance, and the water is added thereto and kneaded, or a method in which the rapid-hardening injection material and cement are separately kneaded with water.
また、注入方法も、限定されるものではないが、■急硬
注入材とセメントを予め混合・混練りしたスラリー状の
物を、１つの注入管を通して注入するｌシｑットエ法、
■急硬注入材とセメントを別々に水と混練りしたスラリ
ー状の物を、別々の注入管を通し、注入前に７字管で混
合合流後、１本の管で注入する１、５シゴツトエ法及び
■急硬注入材とセメントを別々に水と混練りしたスラリ
ー状の物を、別々の注入管を通し、特に、混合管を通さ
ず注入する２シゴツト工法等、一般的に用いられる工法
が好ましく、混合能率などの点から１，５シヨツト工法
がより好ましい。In addition, the injection method is not limited, but may include: (1) injection method in which a slurry-like material prepared by pre-mixing and kneading a rapidly hardening injection material and cement is injected through one injection pipe;
■The slurry-like material made by mixing the rapidly hardening injection material and cement with water separately is passed through separate injection pipes, mixed in a 7-shaped pipe before injection, and then injected into a single pipe. Generally used construction methods, such as the two-shot construction method, in which slurry-like material made by mixing rapidly hardening injection material and cement with water separately is injected through separate injection pipes without passing through the mixing pipe. is preferred, and the 1.5 shot method is more preferred in terms of mixing efficiency.
次に実施を示して本発明の詳細な説明する。 Next, the present invention will be described in detail with reference to its implementation.
実施例１
第１表に示す配合の急硬注入材と、４０１ｔｍ以下に粉
砕したセメント４００ｇを水１ 、２００ｇで混Ｍ２し
たセメントペーストとを混合し、ボワエチ：ン製のφ５
ｃｍの袋に高さ１５ｃｍまで入れ、２４時ｉ後、分離し
た浮き水の高さを測定した。その３果と、（浮氷の高さ
／１５） Ｘ １００を比率（Ｘ）として第１表に併記
する。Example 1 A rapid hardening injection material having the composition shown in Table 1 and a cement paste made by mixing 400 g of cement pulverized to 401 tm or less with 1 and 200 g of water were mixed, and a
The mixture was placed in a 15 cm bag to a height of 15 cm, and after 24 hours, the height of the separated floating water was measured. The three results are also listed in Table 1 as a ratio (X) of (height of floating ice/15) x 100.
〈使用材料〉
ＣＡＮ ：カルシウムフロロアルミネート、セフコラ
：無水センコラ、試薬１級、和光純３■製
セメント：アンデスセメント■製、普通ポルトランドセ
メント、粉砕品（最大粒径４０μ園以下）
水 ：飲料水
比較例１
粉砕してしないセメント（粒度４０ｕｍよす大ンと実験
ヌ１−８に示す急硬注入材を使用したこと以外は、実施
例１と同様に行った。その結果澤き水の高さは７．０Ｃ
１１，比率は４６．７％であった。<Materials used> CAN: Calcium fluoroaluminate, Cefcola: Anhydrous Sencola, Reagent 1st grade, Wako Jun 3 ■ Cement: Andes Cement ■, ordinary Portland cement, pulverized product (maximum particle size 40μ or less) Water: Drinking water Comparative Example 1 The procedure was carried out in the same manner as in Example 1, except that unpulverized cement (particle size: 40 um) and the rapid hardening injection material shown in Experiment No. 1-8 were used. Saha 7.0C
11, the ratio was 46.7%.
第
表
実施例２
φ１０Ｘ２０Ｃ１の円筒を立て、底に布を敷いて、比重
２．６３、粒度０．３〜１．２ｍ及び間隙率４３．０％
の砂を、下部より高さＬ５ｃｍ充填し、実施例１実験弘
１−１．１−５及び１−８の急便注入材と、４０μ−以
下に粉砕したセメン） ４００ｇを水１ 、２００ｇで
混練りしたセメントペーストとを混合し、−容積５００
ｃｃの円筒の上部よりそそぎ、２４時間後脱型し、注入
浸透性を測定した。結果を第２表に示す。Table Example 2 A cylinder of φ10 x 20 C1 is stood up, cloth is spread on the bottom, specific gravity is 2.63, particle size is 0.3 to 1.2 m, and porosity is 43.0%.
Filled with sand from the bottom to a height of 5 cm, and mixed with the emergency injection materials of Example 1 Jikkou 1-1.1-5 and 1-8, and 400 g of cement (ground to a size of 40μ or less) with 1 and 200 g of water. Mix with kneaded cement paste, - volume 500
The mixture was poured from the top of a cc cylinder, removed from the mold after 24 hours, and the injection permeability was measured. The results are shown in Table 2.
なお、砂の間隙率とは、単位容積当りの空隙率である。Note that the porosity of sand is the porosity per unit volume.
第 ２ 表
なお、第２表において、固結容積とは、注入されたセメ
ントペーストが浸透して固結した容積を示し、砂表面残
留厚とは、セメントペーストを上部より砂に注いだ際、
浸透せずに砂の表面に残ったセメントペーストの厚みを
示す。Table 2 In Table 2, the solidification volume refers to the volume of injected cement paste that penetrates and solidifies, and the residual thickness of the sand surface refers to the volume of cement paste that has penetrated and solidified when cement paste is poured into the sand from above.
Indicates the thickness of cement paste remaining on the surface of the sand without penetrating.
実施例３
ＣＡ類１２５ｋｇ、センコラ１２５ｋｇ、炭酸塩０．７
５ｋｇ、有機酸０．２５ｋｇ及び水１ 、２５０ｋｇか
らなる急硬注入材と、４０μ国以下に粉砕したセメント
１００ｋｇを、水５００ｋｇで混練りしたセメントペー
ストとを重量比で１＝３に混合し、第３表に示す条件で
、１．５シロツト工法で岩盤注入を行った。Example 3 CAs 125kg, Senkora 125kg, carbonate 0.7
5 kg of cement, 0.25 kg of organic acid, and 1.25 kg of water, and cement paste made by mixing 100 kg of cement crushed to 40μ or less with 500 kg of water in a weight ratio of 1 = 3, Rock injection was performed using the 1.5 slope method under the conditions shown in Table 3.
この結果、微細なりラックにまで注入され、水もれは完
全になくなり、岩盤は強固に一体化された。As a result, the water was injected into even the smallest racks, completely eliminating water leaks, and solidly integrating the rock.
く使用材料〉
炭酸カリウム；試薬−級、和光純薬０旬製クエン酸Ｎａ
：クエン酸ナトリウム、試薬−級、和光純薬■製
なお、ＣＡＮとセラコラは各々１０μｍ以下品を使用し
た。Materials used: Potassium carbonate; reagent grade, Na citrate manufactured by Wako Pure Chemical Industries, Ltd.
: Sodium citrate, reagent grade, manufactured by Wako Pure Chemical Industries, Ltd. Note that CAN and Ceracola were each used with a diameter of 10 μm or less.
（発明の効果） 以上のように本発明による効果は次の通りである。(Effect of the invention) As described above, the effects of the present invention are as follows.
１）注入性状が大幅に改善されるので、微細な部分まで
注入可能となる。1) Since the injection properties are greatly improved, it becomes possible to injection even into minute parts.
２）ペースト又はモルタル中において材料分離が少ない
ので均一な注入が可能となり硬化後の耐久性が向上され
る。2) Since there is little material separation in the paste or mortar, uniform injection is possible and durability after curing is improved.
３）配合比を変化させることにより、強度、弾性及び凝
結時間が任意に調節できるので、効率的かつ経済的であ
る。3) It is efficient and economical because the strength, elasticity, and setting time can be adjusted arbitrarily by changing the blending ratio.
Claims (1)
し、粒度が４０μｍ以下である急硬注入材。 ２）請求項１記載の急硬注入材と粒度が４０μｍ以下の
セメントを主成分とする注入用セメント組成物。[Claims] 1) A rapidly hardening injection material containing calcium aluminates and inorganic sulfates as main components and having a particle size of 40 μm or less. 2) A cement composition for injection, the main components of which are the rapidly hardening injection material according to claim 1 and cement having a particle size of 40 μm or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1224371A JP2820972B2 (en) | 1989-09-01 | 1989-09-01 | Rapid hardening material for injection and cement composition for injection using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1224371A JP2820972B2 (en) | 1989-09-01 | 1989-09-01 | Rapid hardening material for injection and cement composition for injection using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0388755A true JPH0388755A (en) | 1991-04-15 |
| JP2820972B2 JP2820972B2 (en) | 1998-11-05 |
Family
ID=16812708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1224371A Expired - Fee Related JP2820972B2 (en) | 1989-09-01 | 1989-09-01 | Rapid hardening material for injection and cement composition for injection using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2820972B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0779256A1 (en) | 1995-12-15 | 1997-06-18 | Spie Fondations | Gelation accelerator, injection grout containing it and its use |
| JP2015078101A (en) * | 2013-10-18 | 2015-04-23 | 太平洋マテリアル株式会社 | Quick setting additive |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5748028A (en) * | 1980-09-04 | 1982-03-19 | Asuku Kenkyusho:Kk | Excavating method for ground |
| JPS5951503A (en) * | 1983-08-01 | 1984-03-26 | 松下電器産業株式会社 | Thermistor |
| JPS6245913A (en) * | 1985-08-23 | 1987-02-27 | Yanmar Diesel Engine Co Ltd | Timing changing device in timing belt drive system of engine |
-
1989
- 1989-09-01 JP JP1224371A patent/JP2820972B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5748028A (en) * | 1980-09-04 | 1982-03-19 | Asuku Kenkyusho:Kk | Excavating method for ground |
| JPS5951503A (en) * | 1983-08-01 | 1984-03-26 | 松下電器産業株式会社 | Thermistor |
| JPS6245913A (en) * | 1985-08-23 | 1987-02-27 | Yanmar Diesel Engine Co Ltd | Timing changing device in timing belt drive system of engine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0779256A1 (en) | 1995-12-15 | 1997-06-18 | Spie Fondations | Gelation accelerator, injection grout containing it and its use |
| FR2742432A1 (en) * | 1995-12-15 | 1997-06-20 | Spie Fondations | RIGIDIFICATION ACCELERATOR, GROUT FOR THE SEALING AND / OR CONSOLIDATION OF SOILS AND BUILDING MATERIALS RELATING TO SUCH ACCELERATOR, METHODS USING SUCH A GROUT |
| JP2015078101A (en) * | 2013-10-18 | 2015-04-23 | 太平洋マテリアル株式会社 | Quick setting additive |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2820972B2 (en) | 1998-11-05 |
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