JPH0611961B2 - Lightweight artificial roadbed material - Google Patents
Lightweight artificial roadbed materialInfo
- Publication number
- JPH0611961B2 JPH0611961B2 JP29969988A JP29969988A JPH0611961B2 JP H0611961 B2 JPH0611961 B2 JP H0611961B2 JP 29969988 A JP29969988 A JP 29969988A JP 29969988 A JP29969988 A JP 29969988A JP H0611961 B2 JPH0611961 B2 JP H0611961B2
- Authority
- JP
- Japan
- Prior art keywords
- roadbed material
- mortar
- lightweight artificial
- foamed resin
- lightweight
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 title claims description 26
- 239000004570 mortar (masonry) Substances 0.000 claims description 20
- 239000011347 resin Substances 0.000 claims description 17
- 229920005989 resin Polymers 0.000 claims description 17
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 9
- 239000001110 calcium chloride Substances 0.000 claims description 9
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 9
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 7
- 239000011790 ferrous sulphate Substances 0.000 claims description 6
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 6
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 229920006328 Styrofoam Polymers 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 239000008261 styrofoam Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 239000013505 freshwater Substances 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000014593 oils and fats Nutrition 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical group [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- 159000000014 iron salts Chemical class 0.000 description 1
- 229910000358 iron sulfate Inorganic materials 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 150000003839 salts Chemical group 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
- -1 wire mesh Substances 0.000 description 1
Landscapes
- Retaining Walls (AREA)
- Road Paving Structures (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、軟弱地盤上の盛土や、簡易な道路等の構造物
に用いる軽量の路盤材料に関する。Description: TECHNICAL FIELD The present invention relates to a lightweight roadbed material used for structures such as embankment on soft ground and simple roads.
（従来の技術） 近年、軟弱地盤上や急傾斜地に道路等を構築する際に、
盛土をする代わりに発泡樹脂ブロックを相互に連結しな
がら積重ねて盛土用基体とする軽量盛土工法が漸次用い
られるようになった。(Prior Art) In recent years, when building roads on soft ground or on steep slopes,
Instead of embankment, a lightweight embankment method in which foamed resin blocks are connected to each other and stacked to form a base material for embankment has been gradually used.
この軽量盛土工法の利点としては、 発泡樹脂ブロックが非常に軽量であって（普通の土砂
の約１００分の１）作業性が良好、 盛土荷重が減少し、基礎地盤の沈下が減少する、 発泡樹脂ブロックが自立性を有しているために、従来
の盛土の場合と比較して側圧を低減できるので、法面な
どが崩壊する虞れが少ないので既存構造物に対する影響
が少ない、 大型機械を必要としないので、重要構造物に近接した
工事が可能であり、又周辺環境への影響も少ない などがある。The advantages of this lightweight embankment method are that the foamed resin block is extremely lightweight (about 1 / 100th of ordinary earth and sand) and has good workability, the embankment load is reduced, and the subsidence of the foundation ground is reduced. Since the resin block is self-supporting, the lateral pressure can be reduced compared to the case of the conventional embankment, so there is less risk of the slopes collapsing, so there is little impact on existing structures. Since it is not necessary, construction close to important structures is possible and there is little impact on the surrounding environment.
（発明が解決しようとする課題） ところで、上述した従来の発泡樹脂ブロックを使用する
盛土用基体や、路盤材料では、該発泡樹脂ブロックの特
質である圧縮力に対する強度はあるが酸や油脂類に対す
る耐性が低いということにより、発泡樹脂ブロックが油
脂類に浸食されるのを防止するためにモルタルや金網や
アスファルトシートなどの被覆層で被覆を施こす必要が
あった。(Problems to be Solved by the Invention) By the way, in the base material for embankment using the above-mentioned conventional foamed resin block and the roadbed material, there is strength against the compressive force which is a characteristic of the foamed resin block, but against acids and oils Due to the low resistance, it was necessary to coat the foamed resin block with a coating layer such as mortar, wire mesh, and asphalt sheet in order to prevent the foamed resin block from being eroded by oils and fats.
しかし、この様にしても、単に通常のモルタルを塗着し
ても剥離しやすく油脂等による発泡樹脂ブロックの浸食
を防ぐことは困難であり、又、このモルタルの剥離を防
ぐために金網を使用するのも作業性が低く、工費がかさ
むことになって満足できるものではなく、更にアスファ
ルトシートを施こすのは作業性が低いという問題があっ
た。However, even in such a case, it is difficult to prevent the erosion of the foamed resin block due to oils and fats, etc., even if only ordinary mortar is applied, and it is difficult to prevent the mortar from peeling. However, the workability is low, the construction cost is high, and the workability is not satisfactory. Further, the workability is low when the asphalt sheet is applied.
本発明の目的は、上述した欠点に鑑みなされたもので、
盛土用基体や路盤材料として使用される発泡樹脂ブロッ
ク自体に特殊なモルタルの被覆層を形成せしめて、道路
等の構築物を構築する際の発泡樹脂ブロック同士の接着
剤を不要にして作業性に富み、それ自体が耐衝撃性、耐
久性及び防水性の優れた軽量人工路盤材を提供すること
にある。The object of the present invention was made in view of the above-mentioned drawbacks,
By forming a special mortar coating layer on the foamed resin block itself used as the base material for embankment or roadbed material, the adhesive between foamed resin blocks when constructing a structure such as a road is not required and the workability is excellent. In itself, it is to provide a lightweight artificial roadbed material excellent in impact resistance, durability and waterproofness.
（課題を解決するための手段） 本発明に係る軽量人工路盤材料の要旨は、発泡樹脂ブロ
ックの外面に、塩化カルシウムを主成分とし、該塩化カ
ルシウムに対して１０重量％の硫酸第一鉄を補助成分と
して混入した混和物を含有するモルタルを塗着して形成
したことに存する。(Means for Solving the Problem) The gist of the lightweight artificial roadbed material according to the present invention is to provide calcium chloride as a main component on the outer surface of a foamed resin block, and 10% by weight of ferrous sulfate with respect to the calcium chloride. It is formed by applying mortar containing the admixture mixed as an auxiliary component.
（作用） このように、本発明に係る軽量人工路盤材料を形成する
と、上記特殊モルタル用の混和物成分は、モルタル中の
セメントが水和して生成する水酸化カルシウムと強固に
結合してモルタルに防水性を付与したり、強度の向上、
耐薬品性等をもたらし、従って発泡樹脂ブロックの保護
する機能を果たすが、人畜に無害であり、従って環境汚
染をもたらさない。(Operation) When the lightweight artificial roadbed material according to the present invention is formed in this manner, the admixture component for the special mortar is firmly bonded to the calcium hydroxide produced by hydration of cement in the mortar. To give waterproofness, improve strength,
It provides chemical resistance and the like, and thus serves to protect the foamed resin block, but is harmless to humans and animals, and therefore does not cause environmental pollution.
更に、軽量であって、発泡樹脂ブロック同士の接着のた
めに特別な接着剤を必要としないので、運搬や施工等の
作業性が良いものとなる。又、硫酸第一鉄によって、モ
ルタルに防水性、強度の向上、耐薬品性を発揮するに最
も好ましくなる。Further, since it is lightweight and no special adhesive is required for bonding the foamed resin blocks to each other, workability such as transportation and construction is improved. Further, ferrous sulfate is most preferable for mortar to exhibit waterproofness, strength improvement and chemical resistance.
（実施例） 以下、本発明の一実施例を第１図乃至第２図を参照して
説明する。第１図は、本発明の軽量人工路盤材料を示す
一部断面斜視図である。第２図はその使用状態を示す説
明図である。１は軽量人工路盤材料であり、２は発泡ス
チロールブロックであり、３は特殊モルタルである。こ
の特殊モルタル３は、塩化カルシウムを主成分とし、該
塩化カルシウムに対し１０重量％にした硫酸第一鉄を補
助成分とした混和物（図示せず）を含有するものであ
る。(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. FIG. 1 is a partial cross-sectional perspective view showing the lightweight artificial roadbed material of the present invention. FIG. 2 is an explanatory view showing the usage state. 1 is a lightweight artificial roadbed material, 2 is a styrofoam block, and 3 is a special mortar. This special mortar 3 contains a mixture (not shown) containing calcium chloride as a main component and ferrous sulfate as an auxiliary component in an amount of 10% by weight with respect to the calcium chloride.
本実施例のモルタル３に含有される混和物は、上記に限
定されるものではなく、塩化カルシウムを主成分として
おり、補助成分としては鉄塩（例えば塩化鉄、硫酸鉄な
ど）、カルシウム塩（例えば炭酸カリウム、塩化カリウ
ムなど）、アンモニウム塩（例えば塩化アンモニウム、
硫酸アンモニウムなど）の少なくとも１種から選択され
る塩であり、主成分としての塩化カルシウムに対して0.
3〜３０重量加えたものであればよい。The admixture contained in the mortar 3 of the present embodiment is not limited to the above, but contains calcium chloride as a main component, and iron salts (for example, iron chloride and iron sulfate) and calcium salts (as an auxiliary component). For example, potassium carbonate, potassium chloride, etc.), ammonium salts (for example, ammonium chloride,
It is a salt selected from at least one of ammonium sulfate and the like, and is 0.
What is added is 3 to 30 weight.
又、前記混和物は使用の際に所定量を真水（井戸水、水
道水など）に溶解して水溶液として用いるのも好ましい
ものであって、この場合は、前記混和物を真水に溶解し
て混和物濃度の高い溶液を調整しておき、使用の際に要
求される防水能力、接着強度の程度に応じて５〜２０倍
の真水で稀釈し、所要量のモルタルに混入添加し混練し
て、コテ塗りや吹き付けなどの塗装方法により、又、塗
装回数を調整して発泡スチロールブロック２の外面に塗
着するものである。In addition, it is also preferable that a predetermined amount of the admixture is dissolved in fresh water (well water, tap water, etc.) before use as an aqueous solution. In this case, the admixture is dissolved in fresh water and mixed. Prepare a solution with a high substance concentration, dilute it with 5 to 20 times fresh water according to the degree of waterproofing ability and adhesive strength required at the time of use, mix it with the required amount of mortar, knead, The coating is applied to the outer surface of the styrofoam block 2 by a coating method such as iron coating or spraying, and the number of coatings is adjusted.
軽量人工路盤材料１は発泡スチロールブロックで形成し
たが、これに限られることなく他の発泡樹脂からなるブ
ロックであっても差支えない。The lightweight artificial roadbed material 1 is formed of a styrofoam block, but the block is not limited to this and may be a block made of another foamed resin.
又、発泡樹脂ブロックの形状を適宜使用箇所に応じて変
更できるのは勿論である。Further, it goes without saying that the shape of the foamed resin block can be appropriately changed depending on the place of use.
この様にして形成した軽量人工路盤材料１を使用するに
は、第２図に示すように例えば軟弱地盤Ａを必要な場合
に掘削し、整地後に軽量人工路盤材料１を適宜配列で敷
詰めて、該軽量人工路盤材料１を積層後埋戻しをして被
覆土層４を形成し、床版コンクリート５を投設し、表層
６を施こす。In order to use the lightweight artificial roadbed material 1 formed in this way, as shown in FIG. 2, for example, the soft ground A is excavated when necessary, and after the ground leveling, the lightweight artificial roadbed material 1 is spread in an appropriate array. Then, the lightweight artificial roadbed material 1 is laminated and backfilled to form a coated soil layer 4, a slab concrete 5 is cast, and a surface layer 6 is applied.
この様に構築された軽量人工路盤材料１はモルタル３の
硬化までに要する時間内に発泡スチロールブロック２を
積み上げておくことにより、前記ブロック同士は固着す
ることになる。従って、前記ブロック同士を固着するた
めの接着剤等は不要となる。そして、混和物の補助成分
である硫酸第一鉄によりモルタル３の収縮率が小さくな
り、モルタル３の乾燥収縮による盛土体内の空隙の発生
を防止することができるとともに、該モルタル３の接着
力を向上させることができる。In the lightweight artificial roadbed material 1 thus constructed, the styrofoam blocks 2 are piled up within the time required to cure the mortar 3, so that the blocks are fixed to each other. Therefore, an adhesive or the like for fixing the blocks to each other is unnecessary. Further, the shrinkage rate of the mortar 3 is reduced by the ferrous sulfate which is an auxiliary component of the admixture, it is possible to prevent the generation of voids in the embankment due to the drying shrinkage of the mortar 3, and the adhesive force of the mortar 3 Can be improved.
本発明に係る軽量人工路盤材料は、極めて軟弱な地盤に
おける表層処理材や、河川堤防等に設けられる遊歩道の
表層部材としても好適であり、種々の場合の路盤用材料
として適用できるものである。The lightweight artificial roadbed material according to the present invention is also suitable as a surface treatment material for extremely soft ground and a surface material for a walkway provided on a river embankment or the like, and can be applied as a material for roadbed in various cases.
（発明の効果） 以上詳細に説明したように、本発明に係る軽量人工路盤
材料を、発泡樹脂ブロックの外面に塩化カルシウムを主
成分とし、該塩化カルシウムに対して１０重量％の硫酸
第一鉄を補助成分として混入した混和物を含有するモル
タルを塗着して形成したので、収縮率が小さいことによ
る盛土体内の空隙発生の防止及び接着強度の向上、耐薬
品性、防水性に優れた路盤材料を提供できることとな
る。更に軽量であって、前記混和物を含有したモルタル
によってブロック同士を接着するので当該ブロック同士
の接着のために特別な接着剤を必要としないので、運
搬、施工等の作業性が良く軟弱地盤上などに道路等を構
築する場合に大きく貢献するものである。(Effects of the Invention) As described in detail above, the lightweight artificial roadbed material according to the present invention contains calcium chloride as the main component on the outer surface of the foamed resin block, and 10% by weight of ferrous sulfate based on the calcium chloride. Since it was formed by coating a mortar containing a mixture containing as an auxiliary component, it is a roadbed excellent in prevention of voids in the embankment due to the small shrinkage ratio, improvement in adhesive strength, chemical resistance, and waterproofness. Material can be provided. Furthermore, since it is lighter in weight and the blocks are adhered to each other by the mortar containing the admixture, no special adhesive is required for adhering the blocks to each other, so that workability in transportation, construction, etc. is good and on soft ground. It greatly contributes to the construction of roads, etc.
第１図は、本発明の軽量人工路盤材料を示す一部断面斜
視図、第２図は、同じくその使用状態の一例を示す説明
図である。 １……軽量人工路盤材料、２……発泡スチロールブロッ
ク、３……モルタルFIG. 1 is a partial cross-sectional perspective view showing the lightweight artificial roadbed material of the present invention, and FIG. 2 is an explanatory view showing an example of the same usage state. 1 ... Lightweight artificial roadbed material, 2 ... Styrofoam block, 3 ... Mortar
Claims (1)
ムを主成分とし、該塩化カルシウムに対して１０重量％
の硫酸第一鉄を補助成分として混入した混和物を含有す
るモルタルを塗着して形成したことを特徴としてなる軽
量人工路盤材料。1. An outer surface of a foamed resin block containing calcium chloride as a main component and 10% by weight with respect to the calcium chloride.
A lightweight artificial roadbed material characterized by being formed by applying a mortar containing a mixture containing the above ferrous sulfate as an auxiliary component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29969988A JPH0611961B2 (en) | 1988-11-29 | 1988-11-29 | Lightweight artificial roadbed material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29969988A JPH0611961B2 (en) | 1988-11-29 | 1988-11-29 | Lightweight artificial roadbed material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02147706A JPH02147706A (en) | 1990-06-06 |
| JPH0611961B2 true JPH0611961B2 (en) | 1994-02-16 |
Family
ID=17875899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29969988A Expired - Lifetime JPH0611961B2 (en) | 1988-11-29 | 1988-11-29 | Lightweight artificial roadbed material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0611961B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07107250B2 (en) * | 1991-08-19 | 1995-11-15 | 日本サミコン株式会社 | How to repair a paved road |
| JPH0646042U (en) * | 1992-11-30 | 1994-06-24 | 株式会社ヤマウ | Lightweight block |
| CN101831852B (en) * | 2010-05-06 | 2012-07-18 | 南京工业大学 | Light building block for roadbed and retaining wall |
| JP6639240B2 (en) * | 2016-01-08 | 2020-02-05 | ソイル工業株式会社 | Retaining wall block and retaining wall and construction method of retaining wall |
-
1988
- 1988-11-29 JP JP29969988A patent/JPH0611961B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02147706A (en) | 1990-06-06 |
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