JPH0253889A - Ground improving material for imparting water cutoff property and method for improving ground - Google Patents
Ground improving material for imparting water cutoff property and method for improving groundInfo
- Publication number
- JPH0253889A JPH0253889A JP20387188A JP20387188A JPH0253889A JP H0253889 A JPH0253889 A JP H0253889A JP 20387188 A JP20387188 A JP 20387188A JP 20387188 A JP20387188 A JP 20387188A JP H0253889 A JPH0253889 A JP H0253889A
- Authority
- JP
- Japan
- Prior art keywords
- ground
- cement
- improving
- water
- aqueous emulsion
- 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
- 239000000463 material Substances 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 17
- 238000000034 method Methods 0.000 title description 5
- 239000010426 asphalt Substances 0.000 claims abstract description 24
- 239000000839 emulsion Substances 0.000 claims abstract description 22
- 239000007787 solid Substances 0.000 claims abstract description 9
- 239000004743 Polypropylene Substances 0.000 claims description 22
- 229920001155 polypropylene Polymers 0.000 claims description 22
- -1 polypropylene Polymers 0.000 claims description 20
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000004568 cement Substances 0.000 abstract description 27
- 238000004078 waterproofing Methods 0.000 abstract description 2
- 239000002689 soil Substances 0.000 description 16
- 239000004576 sand Substances 0.000 description 8
- 238000011041 water permeability test Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000003208 petroleum Substances 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- ZSWFCLXCOIISFI-UHFFFAOYSA-N cyclopentadiene Chemical compound C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001653 ettringite Inorganic materials 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- NOUUUQMKVOUUNR-UHFFFAOYSA-N n,n'-diphenylethane-1,2-diamine Chemical compound C=1C=CC=CC=1NCCNC1=CC=CC=C1 NOUUUQMKVOUUNR-UHFFFAOYSA-N 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229940096992 potassium oleate Drugs 0.000 description 1
- 229940114930 potassium stearate Drugs 0.000 description 1
- MLICVSDCCDDWMD-KVVVOXFISA-M potassium;(z)-octadec-9-enoate Chemical compound [K+].CCCCCCCC\C=C/CCCCCCCC([O-])=O MLICVSDCCDDWMD-KVVVOXFISA-M 0.000 description 1
- ANBFRLKBEIFNQU-UHFFFAOYSA-M potassium;octadecanoate Chemical compound [K+].CCCCCCCCCCCCCCCCCC([O-])=O ANBFRLKBEIFNQU-UHFFFAOYSA-M 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Bulkheads Adapted To Foundation Construction (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〕
この発明は、軟弱地盤の改良に使用される地盤改良剤お
よび該改良剤を用いる改良地盤の製造法に関する。本発
明により改良された地盤は遮水性〔従来の技術〕
従来、軟弱地盤を改良するため、セメント系同化材が軟
弱地盤の土砂に添加されていた。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a ground improving agent used for improving soft ground and a method for producing improved ground using the improving agent. The soil improved by the present invention has water-blocking properties [Prior art] Conventionally, in order to improve soft ground, cement-based assimilators have been added to the soil of soft ground.
しかしながら、主として礫、砂、シル１へよりなる土質
にセメント系固化材を添加して改良した地盤は透水性を
有するため、この改良技術は、特に遮水性を要求される
分野には向かない。例えば、砂質土地盤に人工池を建設
する場合には人工池の漏水が甚だ大きくなるという問題
がある。この場合漏水を防止するため、セメント系固化
材を添加して地盤改良を行った後、人工池の内面に遮水
用シートを敷設する必要がある。シートを敷設すれば建
設工期が長くなると共に大ｒｌＪなコスト増となる。However, since the ground improved by adding a cement-based solidifying agent to the soil mainly composed of gravel, sand, and sill 1 has water permeability, this improvement technique is not particularly suitable for fields where water-blocking properties are required. For example, when an artificial pond is constructed on sandy ground, there is a problem in that water leakage from the artificial pond becomes extremely large. In this case, to prevent water leakage, it is necessary to improve the ground by adding a cement-based solidifying agent and then lay a water-blocking sheet on the inner surface of the artificial pond. If a sheet is laid, the construction period will be lengthened and costs will increase significantly.
そこで、発明者らは鋭意研究を重ねた結果、軟弱地盤を
セメント系固化材で地盤改良する際、アスファルトとポ
リプロピレンとを含む水性エマルジョンを添加すると改
良地盤の遮水性が著しく改善され、シート敷設などの防
水処理が省略できることを見出し、この発明を完成した
。Therefore, as a result of extensive research, the inventors found that when improving soft ground with a cement-based solidifying agent, adding an aqueous emulsion containing asphalt and polypropylene significantly improves the water-blocking properties of the improved ground, and it has been found that the water-blocking properties of the improved ground are significantly improved. He discovered that waterproofing treatment can be omitted and completed this invention.
本発明の地盤改良材は、アスファルトとポリプロピレン
とを１＝１〜ｉｏ、ｉ（重量比）の割合で含む水性エマ
ルジョン１重量部（固形分として）とセメント系固化材
２〜１０００重量部との組合せからなることを特徴とす
る。The ground improvement material of the present invention consists of 1 part by weight (as solid content) of an aqueous emulsion containing asphalt and polypropylene in a ratio of 1 to io, i (weight ratio) and 2 to 1000 parts by weight of a cementitious solidifying agent. It is characterized by consisting of a combination.
軟弱地盤を改良するに際して、アスファルトとポリプロ
ピレンを含有する上記水性エマルジョンとセメント系同
化材とは別々に軟弱地盤の土砂に加えることができるし
、また、上記水性エマルジョンとセメント系固化材とを
混合したうえ軟弱地盤の土砂に加えることができる。When improving soft ground, the aqueous emulsion containing asphalt and polypropylene and the cement-based assimilating agent can be added separately to the soil of the soft ground, or the aqueous emulsion and cement-based solidifying agent can be mixed together. It can also be added to soil on soft ground.
改良の対象である「軟弱地盤」とは、盛土や構造物の基
礎地盤として、安定性や沈下に関し、問題を与える地盤
を言い、通常、軟かい圧縮性の大きい粘土、シルト、有
機買上、砂地からなる地層である。"Soft ground", which is the target of improvement, refers to ground that poses problems regarding stability and subsidence when used as the foundation ground for embankments and structures, and is usually soft and highly compressible clay, silt, organic soil, or sandy soil. It is a geological stratum consisting of
セメント系固化材としては、一般に常用されるものをそ
のまま用いることができる。具体的には、多量の水を結
合水としてとり込むエトリンガイトの生成を助けるため
の石こう、石灰など、およびポゾラン反応を進めるため
のスラグ、ソライア。As the cement-based solidifying material, those commonly used can be used as they are. Specifically, gypsum, lime, etc. are used to support the production of ettringite, which takes in large amounts of water as bound water, and slag and soraia are used to promote the pozzolanic reaction.
シュなどをセメントに混入したもの、同化性能の高いア
ルミナセメント、シｒ− ｙ トセメンＩ・などか挙げ
られる。これらの所要成分が配合された特殊セメントで
あるセメン１〜系同化材は、所要成分かセメントの調製
過程で配合されたものであっても、または、セメントの
調製後に所要成分を配合したものであってもよい。Examples include cement mixed with powder, alumina cement with high assimilation performance, and cement cement. Cement 1-based assimilation materials, which are special cements that contain these necessary ingredients, are either the necessary ingredients or those that are blended during the cement preparation process, or the necessary ingredients are blended after the cement is prepared. There may be.
アスファルトとじては石油アスファルトなどが挙げられ
る。ポリプロピレンとしてはアククチツクポリプロピレ
ン、アイソタクチックポリプロピレンなどが挙げられる
。Examples of asphalt include petroleum asphalt. Examples of polypropylene include active polypropylene and isotactic polypropylene.
アスファルトとポリプロピレンとは、両者の重量比が１
＝１〜１：０．１の範囲となるように混合して、水性エ
マルジョンとする。アスファルトの割合が過小であると
十分な遮水性が得られない。Asphalt and polypropylene have a weight ratio of 1
= 1 to 1:0.1 to form an aqueous emulsion. If the proportion of asphalt is too small, sufficient water-blocking properties cannot be obtained.
また、ポリプロピレンの割合が過小であると、特に冬期
に改良地盤の遮水層が脆くなり、ひび割れを生じ易い。Furthermore, if the proportion of polypropylene is too small, the impermeable layer of the improved ground becomes brittle and prone to cracking, especially in winter.
特に好ましい重量比はアスファルト／ポリプロピレン−
約４／１である。水性エマルジョン中のアスファルトと
ポリプロピレンの濃度は格別限定されるものではなく、
エマルジョンの貯蔵安定性、取扱性などを考慮して適宜
選定すればよい。A particularly preferred weight ratio is asphalt/polypropylene-
It is about 4/1. The concentrations of asphalt and polypropylene in the aqueous emulsion are not particularly limited;
It may be selected as appropriate, taking into consideration the storage stability and handling properties of the emulsion.
アスファルトとポリプロピレンとを含む水性エマルジョ
ンには、その安定性を高める目的で、シクロペンタジェ
ン系の石油樹脂、高級オレフィン炭化水素系の石油樹脂
などの石油樹脂やステアリン酸ナトリウムまたはステア
リン酸カリウム、オレイン酸ナトリウムまたはオレイン
酸カリウム之ポリビニルアルコール、ポリアクリルアミ
ドなどの分散剤を適宜添加してもよい。Aqueous emulsions containing asphalt and polypropylene may contain petroleum resins such as cyclopentadiene-based petroleum resins, higher olefin hydrocarbon-based petroleum resins, sodium stearate or potassium stearate, and oleic acid to improve their stability. Dispersants such as sodium or potassium oleate, polyvinyl alcohol, and polyacrylamide may be added as appropriate.
アスファルトとポリプロピレンを含有する水性エマルシ
ョンとセメン１−系固化材とは、前者１＠量部（固形分
として）にえ１して後者２〜＋ｏｏｏｉｉ量部の割合で
組合せて用いる。アスファルト／ポリプロピレン含有水
性エマルションの量が過小であると改良地盤に十分な遮
水性を付与することができず、また、過大であると軟弱
地盤の土砂と混合した際粘着性が高くなり作業性が低下
するとともにコストも増大する。The aqueous emulsion containing asphalt and polypropylene and the cement 1-based solidifying agent are used in combination in a ratio of 1 part (as solid content) of the former to 2 to +ooooii parts of the latter. If the amount of the asphalt/polypropylene-containing aqueous emulsion is too small, it will not be possible to impart sufficient water-blocking properties to the improved ground, and if it is too large, the stickiness will be high when mixed with soil and sand from soft ground, resulting in poor workability. As the cost decreases, so does the cost.
アスファルトとポリプロピレンを含有する水性エマルジ
ョンとセメンＩ・系固化材を組合せて用い、軟弱地盤に
添加するに際しては、これらと水を所定の割合で混合し
スラリー状にしたものを軟弱地盤の土砂と混合撹拌する
か、また、アスファルト／ポリプロピレン水性エマルジ
ョンとセメント系固化材とを任意の順番で別々に、必要
に応じて水とともに軟弱地盤に加えて」１砂と混合する
。軟弱地盤の土砂と混合するにはスタビライザー、バッ
クホー、ミキサーなどが用いられ、得られた混合物はグ
レーグ−、ブルドーザ−などで敷均し、タイヤローラー
などで転圧する方法が採られる。また、軟弱地盤の土砂
に添加する別法として、アスファルト／ポリプロピレン
含有水性エマルジョン、セメン１−系同化材および必要
な水を混合して得たスラリーを土砂中に噴射注入する方
法または機械的に撹拌注入する方法が採られる。When adding a combination of an aqueous emulsion containing asphalt and polypropylene and a cement I-based solidifying agent to soft ground, mix these and water in a predetermined ratio to form a slurry, which is then mixed with the earth and sand of the soft ground. Stir or mix the asphalt/polypropylene aqueous emulsion and the cementitious solidifier separately in any order with the sand, optionally with water, into the soft ground. Stabilizers, backhoes, mixers, etc. are used to mix soil and sand on soft ground, and the resulting mixture is leveled with a gray scale, bulldozer, etc., and then compacted with tire rollers, etc. Another method for adding to soil and sand on soft ground is to inject a slurry obtained by mixing an asphalt/polypropylene-containing aqueous emulsion, a cement 1-based assimilating agent, and the necessary water into the soil, or mechanically stir it. An injection method is used.
改良しようとする対象地盤への改良材の添加量は、改良
地盤の土砂ＬＭ” 当り、セメント系固化材が２０〜４
００ ｔｔｇ、アスファルト／ポリプロピレン含有水性
エマルジョン（固形分として）０．４〜１０ｋｇである
。The amount of improvement material to be added to the target ground to be improved is 20 to 4 cm of cement-based solidification material per LM of soil of the improved ground.
00 ttg, asphalt/polypropylene-containing aqueous emulsion (as solid content) from 0.4 to 10 kg.
セメント系同化材に、アスファルトとポリプロピレンと
を含有する水性エマルジョンを組合せて、地盤改良材と
して用いると、高い遮水性を存する改良地盤を得ること
ができる。When a cement-based assimilated material is combined with an aqueous emulsion containing asphalt and polypropylene and used as a ground improvement material, an improved ground with high water impermeability can be obtained.
以下、実施例について本発明を具体的に説明する。 The present invention will be specifically described below with reference to Examples.
実施例１ 透水試験
試料土 自然含水比 １３．２％単位体積重量
１．６９７ｇ／ｃ１
組成 検分 ０．８％
砂分 ９１．４％
細粒分 ７．８％
試験方法
試料土に所定量のセメント系固化材（三菱鉱業セメント
製スタヒライ１〜Ｍ１５）と、アスファルトとポリプロ
ピレンとを１１０．２５の重量比で含む水性エマルジョ
ン（成瀬化学製ナルソアル１〜−Ｃ）を添加し、ミキサ
ーで混合した後、透水試験用供試体（直径ＩＱｃｍ、晶
さ１２．７ｃ＋ｎ、容積１０００ｃ＋ｄ）を突き固め成
型した。供試体はビニール袋で上面を密封し、２０℃±
３℃の室内で養生後、材令７目にて透水試験を実施した
。Example 1 Water permeability test sample soil Natural water content ratio 13.2% unit volume weight
1.697g/c1 Composition Inspection 0.8% Sand 91.4% Fine particles 7.8% Test method A predetermined amount of cement-based solidifying agent (Mitsubishi Mining Cement Co., Ltd.'s Stahirai 1 to M15) and asphalt were added to the sample soil. After adding an aqueous emulsion containing polypropylene at a weight ratio of 110.25 (Narusoal 1 to -C manufactured by Naruse Chemical Co., Ltd.) and mixing with a mixer, a water permeability test specimen (diameter IQ cm, crystallinity 12.7 c+n, volume 1000 c+d) was added. ) was tamped and molded. The upper surface of the specimen was sealed with a plastic bag and kept at 20℃±
After curing in a room at 3°C, a water permeability test was conducted at the 7th age.
透水試験は、ｌｌ５ＡＩ２１８ Ｃ上の透水試験方法（
変水位試験方法）〕に準じて行い、透水係数を測定した
。結果を表１に示す。The water permeability test was conducted using the water permeability test method on ll5AI218C (
The permeability coefficient was measured according to the variable water level test method). The results are shown in Table 1.
実施例２ 人工池の建設
従来の工法で用いられた防水シートを用いることなく、
本発明の地盤改良材を施工して、砂質地に人工池を建設
した。Example 2 Construction of an artificial pond Without using the waterproof sheet used in conventional construction methods,
An artificial pond was constructed on sandy ground by applying the ground improvement material of the present invention.
セメント系同化材
（三菱鉱業セメント製スタビライトＭ１５）１２０ｋｇ
／ｎ？
アスファルトとポリプロピレンとを１１０．２５の重量
比で含む水性エマルジョン
（成瀬化学製ナルファル）−Ｃ）
２ｋｇ／ｒｒｒ（固型分として）
水 ２０ｋｇ／ｎ？砂質土
１Ｍ
をミキサーで混練し、人工池の底部及び側壁部に打設し
て、転圧し、人工池を建設した。Cement-based assimilation material (Mitsubishi Mining Cement Stabilite M15) 120kg
/n? Aqueous emulsion containing asphalt and polypropylene at a weight ratio of 110.25 (Naruphal manufactured by Naruse Chemical Co., Ltd.)-C) 2kg/rrr (as solid content) Water 20kg/n? sandy soil
1M was mixed in a mixer, poured into the bottom and side walls of an artificial pond, and compacted to construct an artificial pond.
実施例３ 地下擁壁の建設
湧水防止及び地下水の止水を目的として、従来から用い
られている鋼矢板を用いることなく、本発明の地盤改良
材を施工して、軟弱地盤に地下室をもつ建造物を建設し
た。Example 3 Construction of an underground retaining wall In order to prevent spring water and stop underground water, the ground improvement material of the present invention was constructed without using conventionally used steel sheet piles to create a basement on soft ground. built a building.
セメント系同化材
（三菱鉱業セメント製スタヒライｌ−ＲＩＯ）１２０ｋ
ｇ／ｍ’
アスファルトとポリプロピレンとを１１０．２５の重量
比で含む水性エマルション
（成瀬化学製ナルファルｌ−−−Ｃ）
３ ｋｇ ／ ｒ＋？ （固型分として）水
２０ｋｇ／ｍ現地の砂質」二 １Ｍ
をミキサーで混練し、フィルモルタルを作製した。Cement-based assimilated material (Stahirai l-RIO manufactured by Mitsubishi Mining Cement) 120k
g/m' Aqueous emulsion containing asphalt and polypropylene at a weight ratio of 110.25 (Naruse Chemical Co., Ltd. Narufal l---C) 3 kg/r+? water (as solids)
A fill mortar was prepared by kneading 20 kg/m of local sand with a mixer.
次に、これを掘削の完了したトレンチにポンプで圧送、
充填し、芯材としてＨ形鋼を等間隔に建て込んで、遮水
性を有する土留壁を構築した。This is then pumped into the excavated trench.
The soil was filled with water, and H-beams were erected at equal intervals as a core material to construct a water-blocking earth retaining wall.
Claims (1)
．１（重量比）の割合で含む水性エマルジョン１重量部
（固形分として）とセメント系固化材２〜１０００重量
部との組合せからなることを特徴とする、遮水性を付与
する地盤改良材。 ２、アスファルトとポリプロピレンとを１：１〜１：０
．１（重量比）の割合で含む水性エマルジョン１重量部
（固形分として）とセメント系固化材２〜１０００重量
部を軟弱地盤に添加することを特徴とする遮水性を有す
る改良地盤を製造する方法。[Claims] 1. Asphalt and polypropylene in a ratio of 1:1 to 1:0
．． 1. A ground improvement material that imparts water-blocking properties, characterized by comprising a combination of 1 part by weight (as solid content) of an aqueous emulsion containing 1 part by weight (weight ratio) and 2 to 1000 parts by weight of a cementitious solidifying agent. 2. Asphalt and polypropylene 1:1 to 1:0
．． A method for producing improved ground having water-blocking properties, characterized by adding 1 part by weight (as solid content) of an aqueous emulsion containing 1 part by weight (weight ratio) and 2 to 1000 parts by weight of a cementitious solidifying agent to soft ground. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20387188A JPH0253889A (en) | 1988-08-18 | 1988-08-18 | Ground improving material for imparting water cutoff property and method for improving ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20387188A JPH0253889A (en) | 1988-08-18 | 1988-08-18 | Ground improving material for imparting water cutoff property and method for improving ground |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0253889A true JPH0253889A (en) | 1990-02-22 |
| JPH0435517B2 JPH0435517B2 (en) | 1992-06-11 |
Family
ID=16481094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20387188A Granted JPH0253889A (en) | 1988-08-18 | 1988-08-18 | Ground improving material for imparting water cutoff property and method for improving ground |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0253889A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04175279A (en) * | 1990-11-07 | 1992-06-23 | Naruse Kagaku Kk | Prevention of deterioration of hardened concrete |
-
1988
- 1988-08-18 JP JP20387188A patent/JPH0253889A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04175279A (en) * | 1990-11-07 | 1992-06-23 | Naruse Kagaku Kk | Prevention of deterioration of hardened concrete |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0435517B2 (en) | 1992-06-11 |
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