JPS6216991B2 - - Google Patents
Info
- Publication number
- JPS6216991B2 JPS6216991B2 JP53149986A JP14998678A JPS6216991B2 JP S6216991 B2 JPS6216991 B2 JP S6216991B2 JP 53149986 A JP53149986 A JP 53149986A JP 14998678 A JP14998678 A JP 14998678A JP S6216991 B2 JPS6216991 B2 JP S6216991B2
- Authority
- JP
- Japan
- Prior art keywords
- soil
- water glass
- grout
- lime
- gypsum
- 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.)
- Expired
Links
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 30
- 239000002689 soil Substances 0.000 claims description 25
- 235000019353 potassium silicate Nutrition 0.000 claims description 23
- 239000011440 grout Substances 0.000 claims description 19
- 239000003795 chemical substances by application Substances 0.000 claims description 18
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 claims description 13
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 12
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 12
- 239000003623 enhancer Substances 0.000 claims description 12
- 239000004571 lime Substances 0.000 claims description 12
- 239000004568 cement Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 150000004683 dihydrates Chemical class 0.000 claims description 10
- 229910052602 gypsum Inorganic materials 0.000 claims description 10
- 239000010440 gypsum Substances 0.000 claims description 10
- 239000004115 Sodium Silicate Substances 0.000 claims description 8
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 7
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 6
- 229910052925 anhydrite Inorganic materials 0.000 claims description 6
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 6
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 claims description 5
- 235000010261 calcium sulphite Nutrition 0.000 claims description 5
- 239000002075 main ingredient Substances 0.000 claims description 5
- 230000006641 stabilisation Effects 0.000 claims description 4
- 238000011105 stabilization Methods 0.000 claims description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical group [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 3
- 239000000920 calcium hydroxide Substances 0.000 claims description 3
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- 235000012255 calcium oxide Nutrition 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 240000006909 Tilia x europaea Species 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- 239000007788 liquid Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000007864 aqueous solution Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 239000002002 slurry Substances 0.000 description 4
- 239000004848 polyfunctional curative Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 239000011398 Portland cement Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000019351 sodium silicates Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Description
本発明は水ガラスを主剤とするグラウトにより
土質を安定化させる方法に関し、その目的とする
ところは処理土壌の強度を十分に大きくすること
ができる土質安定化法を提供することにある。
従来、軟弱地盤を強化したり、漏水地盤の止水
をするため、種々のグラウトを地盤中に注入した
り、土壌と強制的に混合したのちゲル化させるグ
ラウト工法が知られているが、最近は水ガラスを
主剤とし、これに硬化剤としてセメント、石灰
（消石灰または生石灰）、２水石膏、または半水石
膏などの少なくとも１種を混合して成る懸濁液状
のグラウト（以下、懸濁型のグラウトと云う）が
安価であり、かつ他の化学グラウトにくらべて処
理土壌の強度を大きくすることができることから
広く利用されている。
これらの懸濁型のグラウトにおいては、水ガラ
スに対する硬化剤の混合割合を増加させるほどゲ
ル化物の強度は大きくなる。
従つて、これらのグラウトを用いて土質を安定
化させる場合、処理土壌の強度を十分に大きくし
ようとするときは硬化剤の使用量を多くするが、
硬化剤の使用量を余りにも多くするとグラウトの
ゲルタイムが極端に短くなつて土壌注入作業に重
大な支障が来たす。
一方、グラウトの土壌注入作業に支障がないよ
う、硬化剤の使用量を減少させてグラウトのゲル
タイムを長くすると処理土壌の強度を十分大きく
することができない。
このようなことから、本発明者らは水ガラスを
主剤とし、これに硬化剤としてセメント，石灰，
２水石膏および半水石膏などの少なくとも１種を
添加して成る懸濁型のグラウトにより土質を安定
化させるに当り、硬化剤の使用量を特に多くしな
くても、多くした場合と同等ないしはそれ以上の
強度を処理土壌に与えることができるような方法
を見出すべく種々研究した結果、グラウト中に亜
硫酸カルシウム、型無水石膏，等を混入させる
ことによつて目的が達成されることを知り、本発
明に到達した。
水ガラスを主剤とし、これにセメント，石灰，
２水石膏および半水石膏からなる群から選ばれた
１種または２種以上を硬化剤として添加して成る
グラウトを地盤中に注入するかまたは土壌と混合
した後、ゲル化させて土質を安定化させるにあた
り、水ガラス中の珪酸ソーダ：純分１重量部あた
り0.9〜2.4重量部の亜硫酸カルシウムまたは型
無水石膏をゲル強度増強剤としてグラウト中に混
入させることを特徴とする土質の安定化法に係る
ものである。
本発明に用いる水ガラスとしては従来珪酸塩系
グラウトに用いられているSiO2／Na2Oのモル比
が２〜４の珪酸ソーダが用いられるが、通常、
JISK―1408に規定されている１〜３号珪酸ソー
ダ、特に３号珪酸ソーダが好適に用いられる。
これらの珪酸ソーダは一般に水溶液状となつて
いるが、施工時に更に水で希釈して土質安定化に
適した適宜の濃度の水溶液にする。
たとえば、水ガラス水溶液（Ａ液）と他の成分
のスラリー（本発明の場合は硬化剤とゲル強度増
強剤の混合物スラリー）（Ｂ液）を等容量ずつ混
合しながら地盤中に注入する通常の施工法におい
て水ガラス源としてJIS3号水ガラスが用いられた
場合は、該水ガラス40〜180容量部を水で希釈し
て200容量部にしたものをＡ液として使用する。
Ａ液中の水ガラス濃度を高くするほど処理土壌の
強度を大きくすることができる。
本発明に用いるセメントとしてはポルトランド
セメントが挙げられ、通常は普通ポルトランドセ
メントが好適に用いられるが、混合セメントのよ
うなものも使用できる。
本発明に用いる石灰としては消石灰，生石灰が
挙げられる。これらの石灰は混合して用いること
も可能である。
本発明に用いる２水石膏および半水石膏はいか
なる種類のものも使用可能であつて、たとえば半
水石膏としてはα型半水石膏，β型半水石膏いず
れも用いられる。
セメント，石灰，２水石膏および半水石膏の使
用量はグラウトのゲルタイムに応じて変化させ、
ゲルタイムを短くする場合は多く用い、反対にゲ
ルタイムを長くする場合は少なく用いる。
たとえば、JIS3号水ガラス100lと水100lからな
るＡ液（200l）とこれと等容量のＢ液（200l）の
混合物からなるグラウト（400l）を地盤中で１〜
３分間でゲル化させる通常の施工法において、硬
化剤としてセメントを用いた場合はＢ液中にセメ
ントを10〜60Kg含有させる。硬化剤として石灰を
用いた場合５〜15Kg、２水石膏を用いた場合は10
〜20Kg、半水石膏を用いた場合は５〜15Kgをそれ
ぞれＢ液中に含有させる。
これらの硬化剤はそれぞれ単独だけではなく、
混合して用いることも可能である。
本発明に用いる亜硫酸カルシウムとしてはいか
なる種類のものも使用できるが、通常排煙脱硫プ
ロセス（石灰乳吸収法）によつて生成する
CaSO3・1/2H2O結晶が安価かつ入手が容易なの
で好ましいものと云える。
本発明に用いる型無水石膏とは２水石膏，半
水石膏等を400℃以上の温度で焼成して得られる
ものであつて、通常その粉砕品が用いられるが、
本発明においては型無水石膏の粒径や焼成温度
にこだわるものではない。
亜硫酸カルシウムまたは型無水石膏は水に不
溶で本発明において硬化剤として用いるセメン
ト，石灰，２水石膏および半水石膏にくらべると
水ガラス水溶液をゲル化させる作用が乏しく、か
なり多量を水ガラス水溶液に混合してもこれを短
時間でゲル化させることができない。
しかるに、これらのゲル強度増強剤をセメン
ト，石灰，２水石膏，半水石膏等少なくとも１種
の硬化剤と併用して水ガラス水溶液に添加する
と、硬化剤のみで水ガラス水溶液をゲル化させる
場合にくらべてゲル化物の強度を驚くべきことに
は格段に増強することができる。
その他、好ましいことには、これらゲル強度増
強剤を硬化剤と併用すると、硬化剤のみを使用す
る場合にくらべてグラウトのゲルタイムの調節が
非常に容易になることが見出された。
本発明におけるゲル強度増強剤の使用量は多く
用いるほど処理土壌の強度を大きくすることがで
きるが、余りにも多く用いるとグラウトの流動性
が悪化するので通常は土質条件に応じて前記グラ
ウト400l当り、それぞれ50〜120Kg、特に60〜80
Kg程度用いる。
JIS3号水ガラス100lには、珪酸ソーダが純分換
算で通常50〜56Kg含まれているので、珪酸ソー
ダ：純分１重量部あたり、本発明のゲル強度増強
剤を0.9〜2.4重量部の割合で使用することにより
グラウトの流動性を悪化させることなく処理土壌
の強度を大きくすることができる。
これらのゲル強度増強剤は通常硬化剤と共にＢ
液中に含有させる。
本発明を実施する際のグラウトの土壌注入法に
ついて説明すると、先ず水ガラスを水に溶解した
液（Ａ液）と硬化剤およびゲル強度増強剤混合物
に水を加えてスラリーにしたもの（Ｂ液）を施工
前にそれぞれ別々に調合する。
次いで、施工時にＡ液とＢ液をそれぞれ専用の
ポンプに送り、各ポンプの吐出部に接続したＹ字
管中でＡ，Ｂ両液を混合しながら土壌中に注入す
る。
次に実施例を用いて本発明を説明する。
実施例
JIS3号水ガラス50mlに水50mlを加えて溶解し、
これをＡ液とした。
一方、第１表に記載の通りの硬化剤、ゲル強度
増強剤混合物水性スラリー100mlを調合し、これ
をＢ液とした。
Ａ，Ｂ両液を室温下で素早く1000mlビーカー中
に入れ、マグネチツクスターラーで撹拌し、スタ
ーラーが停止する迄の時間を測定し、これをゲル
タイムとした。
次に、別途調合した上記と同じＡ，Ｂ両液を混
合して50mm（直径）×100mm（高さ）のモールド中
に流し込み、約１時間後脱型し、25℃の静水中で
養生した後、得られたホモゲルの一軸圧縮強度を
測定した。
ゲルタイムおよびホモゲルの圧縮強度（１日
後）を第１表および第２表に示す。
なお、比較のためにＢ液中にゲル強度増強剤を
添加しないで上記試験を行なつた例を対照として
示す。
The present invention relates to a method for stabilizing soil quality using grout containing water glass as a main ingredient, and its purpose is to provide a soil stabilization method that can sufficiently increase the strength of treated soil. Conventionally, grouting methods have been known in which various types of grout are injected into the ground or forcibly mixed with the soil and then turned into a gel in order to strengthen soft ground or stop water from leaking ground. is a suspension type grout (hereinafter referred to as suspension type) which is made of water glass as the main ingredient and at least one hardening agent such as cement, lime (slaked lime or quicklime), dihydrate gypsum, or hemihydrate gypsum. It is widely used because it is inexpensive and can increase the strength of treated soil compared to other chemical grouts. In these suspension type grouts, the strength of the gelled product increases as the mixing ratio of hardening agent to water glass increases. Therefore, when using these grouts to stabilize soil quality, the amount of hardening agent used must be increased if the strength of the treated soil is to be sufficiently increased.
If the amount of curing agent used is too large, the gel time of the grout will be extremely short, causing serious problems in soil injection work. On the other hand, if the amount of curing agent used is reduced to lengthen the gel time of the grout so as not to interfere with the work of injecting the grout into the soil, the strength of the treated soil cannot be sufficiently increased. For this reason, the present inventors used water glass as the main ingredient, and added cement, lime, and other hardeners to it as a hardening agent.
When stabilizing soil quality with a suspended grout made by adding at least one of dihydrate gypsum and hemihydrate gypsum, even if the amount of curing agent used is not particularly large, it can be equivalent to or even better than using a larger amount. As a result of various studies to find a method that could give even greater strength to the treated soil, it was discovered that the objective could be achieved by mixing calcium sulfite, type anhydrite, etc. into the grout. We have arrived at the present invention. Water glass is the main ingredient, and cement, lime,
A grout made by adding one or more types selected from the group consisting of dihydrate gypsum and hemihydrate gypsum as a hardening agent is injected into the ground or mixed with the soil, and then gelled to stabilize the soil quality. A soil stabilization method characterized by mixing 0.9 to 2.4 parts by weight of calcium sulfite or type anhydrite as a gel strength enhancer into grout per 1 part by weight of sodium silicate in water glass as a gel strength enhancer. This is related to. As the water glass used in the present invention, sodium silicate with a SiO 2 /Na 2 O molar ratio of 2 to 4, which has been conventionally used in silicate grouts, is used.
Sodium silicate No. 1 to No. 3 specified in JISK-1408, particularly sodium silicate No. 3, is preferably used. These sodium silicates are generally in the form of an aqueous solution, but at the time of construction, they are further diluted with water to form an aqueous solution with an appropriate concentration suitable for soil stabilization. For example, a conventional method in which a water glass solution (liquid A) and a slurry of other components (in the case of the present invention, a slurry of a mixture of a curing agent and a gel strength enhancer) (liquid B) are mixed in equal volumes and injected into the ground. When JIS No. 3 water glass is used as a water glass source in the construction method, 40 to 180 parts by volume of the water glass is diluted with water to 200 parts by volume and used as liquid A.
The higher the water glass concentration in Solution A, the greater the strength of the treated soil. The cement used in the present invention includes Portland cement, and usually Portland cement is preferably used, but mixed cements can also be used. Examples of lime used in the present invention include slaked lime and quicklime. It is also possible to use a mixture of these limes. Any type of dihydrate gypsum and hemihydrate gypsum used in the present invention can be used, and for example, both α-type hemihydrate gypsum and β-type hemihydrate gypsum can be used as the hemihydrate gypsum. The amounts of cement, lime, dihydrate gypsum and hemihydrate gypsum used were varied according to the gel time of the grout.
Use more if you want to shorten the gel time, and use less if you want to lengthen the gel time. For example, grout (400 liters) consisting of a mixture of 100 liters of JIS No. 3 water glass and 100 liters of water, and 200 liters of liquid B (200 liters) is poured into the ground.
In the usual construction method of gelling in 3 minutes, when cement is used as a hardening agent, 10 to 60 kg of cement is contained in liquid B. 5 to 15 kg when using lime as a hardening agent, 10 kg when using dihydrate gypsum
~20Kg, or 5~15Kg if gypsum hemihydrate is used, is contained in Solution B. These curing agents are not only used alone, but also
It is also possible to use a mixture. Any type of calcium sulfite can be used in the present invention, but it is usually produced by a flue gas desulfurization process (lime milk absorption method).
CaSO 3 .1/2H 2 O crystal is preferred because it is inexpensive and easily available. The molded anhydrite used in the present invention is obtained by firing gypsum dihydrate, gypsum hemihydrate, etc. at a temperature of 400°C or higher, and its pulverized product is usually used.
In the present invention, there are no particular restrictions on the particle size of the molded anhydrite or the firing temperature. Calcium sulfite or type anhydrite is insoluble in water and has a poor gelling effect on water glass aqueous solutions compared to cement, lime, dihydrate gypsum and hemihydrate gypsum used as hardening agents in the present invention, and therefore a fairly large amount is used in the water glass aqueous solution. Even if mixed, it cannot be gelled in a short time. However, when these gel strength enhancers are added to a water glass aqueous solution in combination with at least one hardening agent such as cement, lime, dihydrate gypsum, hemihydrate gypsum, etc., when the water glass aqueous solution is gelled with only the hardening agent. Surprisingly, the strength of the gelled product can be significantly enhanced compared to the above. Additionally, it has been found that when these gel strength enhancers are used in combination with hardeners, the gel time of the grout is much easier to control than when hardeners are used alone. The greater the amount of gel strength enhancer used in the present invention, the greater the strength of the treated soil, but if too much is used, the fluidity of the grout deteriorates, so it is usually , respectively 50-120Kg, especially 60-80
About Kg is used. Since 100 liters of JIS No. 3 water glass usually contains 50 to 56 kg of sodium silicate in terms of pure content, the gel strength enhancer of the present invention is added at a ratio of 0.9 to 2.4 parts by weight per 1 part by weight of sodium silicate: pure content. By using this method, the strength of the treated soil can be increased without deteriorating the fluidity of the grout. These gel strength enhancers are usually combined with B
Contain it in the liquid. To explain the soil injection method for grout when implementing the present invention, first, water is added to a solution of water glass dissolved in water (solution A), a curing agent, and a gel strength enhancer mixture to form a slurry (solution B). ) are mixed separately before construction. Next, during construction, liquids A and B are sent to dedicated pumps, and both liquids A and B are mixed and injected into the soil in a Y-shaped pipe connected to the discharge part of each pump. Next, the present invention will be explained using examples. Example Add 50 ml of water to 50 ml of JIS No. 3 water glass and dissolve.
This was called liquid A. On the other hand, 100 ml of an aqueous slurry of a curing agent and gel strength enhancer mixture as shown in Table 1 was prepared, and this was used as Solution B. Both solutions A and B were quickly put into a 1000 ml beaker at room temperature, stirred with a magnetic stirrer, and the time until the stirrer stopped was measured, which was defined as the gel time. Next, the same separately prepared solutions A and B as above were mixed and poured into a mold of 50 mm (diameter) x 100 mm (height), removed from the mold after about 1 hour, and cured in still water at 25 ° C. Thereafter, the uniaxial compressive strength of the obtained homogel was measured. Gel time and homogel compressive strength (after 1 day) are shown in Tables 1 and 2. For comparison, an example in which the above test was conducted without adding the gel strength enhancer to the B solution is shown as a control.
【表】【table】
【表】【table】
【表】【table】
Claims (1)
灰，２水石膏および半水石膏からなる群から選ば
れた１種または２種以上を硬化剤として添加して
成るグラウトを地盤中に注入するかまたは土壌と
混合した後、ゲル化させて土質を安定化させるに
あたり、水ガラス中の珪酸ソーダ：純分１重量部
あたり0.9〜2.4重量部の亜硫酸カルシウムまたは
型無水石膏をゲル強度増強剤としてグラウト中
に混入させることを特徴とする土質の安定化法。 ２ 石灰が消石灰および／または生石灰である特
許請求の範囲第１項記載の土質の安定化法。[Claims] 1. A grout made of water glass as a main ingredient and one or more selected from the group consisting of cement, lime, dihydrate gypsum and hemihydrate gypsum added as a hardening agent to the grout. Sodium silicate in water glass: 0.9 to 2.4 parts by weight of calcium sulfite or type anhydrite per 1 part by weight of pure content is injected into the water glass or mixed with soil and then gelled to stabilize the soil. A soil stabilization method characterized by mixing it into grout as a strength enhancer. 2. The method for stabilizing soil quality according to claim 1, wherein the lime is slaked lime and/or quicklime.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14998678A JPS5578083A (en) | 1978-12-06 | 1978-12-06 | Stabilization of soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14998678A JPS5578083A (en) | 1978-12-06 | 1978-12-06 | Stabilization of soil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5578083A JPS5578083A (en) | 1980-06-12 |
| JPS6216991B2 true JPS6216991B2 (en) | 1987-04-15 |
Family
ID=15486961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14998678A Granted JPS5578083A (en) | 1978-12-06 | 1978-12-06 | Stabilization of soil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5578083A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5721484A (en) * | 1980-07-12 | 1982-02-04 | Kyokado Eng Co Ltd | Ground-stabilizing process |
| JPS5949281A (en) * | 1982-09-14 | 1984-03-21 | Shimoda Gijutsu Kenkyusho:Kk | Grouting material and grouting process |
| US5017233A (en) * | 1985-08-01 | 1991-05-21 | Soltanche | Method of rendering soils impervious and products for carrying out the method |
| JPH01122952A (en) * | 1987-11-06 | 1989-05-16 | Kyokado Eng Co Ltd | Material for solidification |
| JPH01176262A (en) * | 1987-12-31 | 1989-07-12 | Kyokado Eng Co Ltd | Binder |
| JPH07116437B2 (en) * | 1988-01-27 | 1995-12-13 | 強化土エンジニヤリング株式会社 | Material for consolidation |
| KR100564368B1 (en) | 2003-12-15 | 2006-03-27 | 설강준 | Consistency compaction grouting system for a construction of water-proof wall |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49132809A (en) * | 1973-04-23 | 1974-12-20 | ||
| JPS5227649A (en) * | 1975-08-27 | 1977-03-02 | Nippon Telegr & Teleph Corp <Ntt> | Waveguide type optical modulator |
| JPS5281332A (en) * | 1975-12-27 | 1977-07-07 | Nisshin Eng | Curable compositions from exhaust gas desulfurization sludge |
| JPS5361632A (en) * | 1976-11-15 | 1978-06-02 | Nippon Paint Co Ltd | Prevention of resin formation in baking of aqueous coating compounds |
| JPS5382837A (en) * | 1976-12-28 | 1978-07-21 | Kurashiki Boseki Kk | Method of producing mixture of gypsum and water glass |
| JPS53122203A (en) * | 1977-03-31 | 1978-10-25 | Sanyo Chemical Ind Ltd | Method of stabilizing nature of soil by chemical liquid |
-
1978
- 1978-12-06 JP JP14998678A patent/JPS5578083A/en active Granted
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49132809A (en) * | 1973-04-23 | 1974-12-20 | ||
| JPS5227649A (en) * | 1975-08-27 | 1977-03-02 | Nippon Telegr & Teleph Corp <Ntt> | Waveguide type optical modulator |
| JPS5281332A (en) * | 1975-12-27 | 1977-07-07 | Nisshin Eng | Curable compositions from exhaust gas desulfurization sludge |
| JPS5361632A (en) * | 1976-11-15 | 1978-06-02 | Nippon Paint Co Ltd | Prevention of resin formation in baking of aqueous coating compounds |
| JPS5382837A (en) * | 1976-12-28 | 1978-07-21 | Kurashiki Boseki Kk | Method of producing mixture of gypsum and water glass |
| JPS53122203A (en) * | 1977-03-31 | 1978-10-25 | Sanyo Chemical Ind Ltd | Method of stabilizing nature of soil by chemical liquid |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5578083A (en) | 1980-06-12 |
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