JP3183854B2 - Slope protection composition and slope protection method - Google Patents
Slope protection composition and slope protection methodInfo
- Publication number
- JP3183854B2 JP3183854B2 JP29169297A JP29169297A JP3183854B2 JP 3183854 B2 JP3183854 B2 JP 3183854B2 JP 29169297 A JP29169297 A JP 29169297A JP 29169297 A JP29169297 A JP 29169297A JP 3183854 B2 JP3183854 B2 JP 3183854B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- slope
- composition
- parts
- fertilizer
- 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 - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
【0001】[0001]
【発明の属する技術分野】本発明は,斜面を保護するた
めの組成物と方法に関し,特に斜面に植物を育成させる
手段に関する。The present invention relates to compositions and methods for protecting slopes, and more particularly to means for growing plants on slopes.
【0002】[0002]
【従来の技術】道路や鉄道などを建設する際には,地肌
が削り取られて法面などの斜面が形成される。また,こ
うして形成された斜面を放置すると風雨によって浸食さ
れて崩壊するので,通常はコンクリートなどの組成物を
斜面に吹き付けて保護している。一方,削り取られたこ
とによって岩盤などの地肌をさらけ出したり,あるいは
コンクリートなどで保護された斜面は,そのままでは植
物が育成せず周囲の景観を損なう場合がある。このた
め,斜面に植物を育成させる様々な試みが行われてい
る。2. Description of the Related Art When constructing roads and railways, the ground is scraped off to form slopes such as slopes. If the slope thus formed is left unattended, it is eroded by the weather and collapses, so that a composition such as concrete is usually sprayed onto the slope to protect it. On the other hand, slopes that are exposed to the ground, such as bedrock, or that are protected by concrete, etc., may not be able to grow plants and damage the surrounding landscape. For this reason, various attempts have been made to grow plants on slopes.
【0003】ここで,斜面に植物を育成させる従来の手
段には次の1〜6に示す工法が知られている。 1.泥吹き工法 土,ピートモス等の天然繊維,糊等の固結材,種子,肥
料を配合した組成物を斜面に吹き付ける工法である。こ
の工法は,発芽後は下地の土に根が張るので吹き付けた
泥と地肌を一体化することができる。また,土が主体な
ので自然に近い。 2.ネット工法 ビニールのネットに種子と肥料を付着させたもので斜面
を被覆し,竹串などでネットを仮固定し,その上から若
干の土をかける方法である。この方法も,発芽後は下地
に根を張るので一体化することができる。 3.マット工法 ワラや不織布マットに種子と肥料を付着させたもので斜
面を被覆する方法である。上記2のネット工法に類似し
た方法である。 4.コンクリートブロック枠工法 斜面上にコンクリートブロック枠を斜めに組み合わせ,
ブロック内に土を入れて植物を育てる工法である。 5.空隙コンクリート工法 斜面を被覆するコンクリート中に気泡骨材を混入した
り,発泡剤を入れたりして,コンクリートそのものに数
多くの空隙を作り,通水性を向上させる方法である。植
物はコンクリート中の空隙にポット状に育成させる。 6.弱アルカリ又は弱酸性のコンクリート工法 斜面を被覆したコンクリート表面を薬剤処理するか,コ
ンクリート表面に弱アルカリ又は弱酸性物質をコーティ
ングして植物の育成に適した条件にする工法である。Here, the following methods 1 to 6 are known as conventional means for growing plants on slopes. 1. Mud blowing method This is a method of spraying a composition containing soil, natural fibers such as peat moss, solidifying material such as glue, seeds and fertilizer on the slope. With this method, the roots of the ground are buried after germination, so that the sprayed mud and the ground can be integrated. In addition, it is close to nature because it is mainly composed of soil. 2. Net method This method is to cover the slope with a plastic net attached with seeds and fertilizer, temporarily fix the net with a bamboo skewer, etc., and apply some soil on top of it. This method can also be integrated since the root is set on the substrate after germination. 3. Mat method This method covers the slope with straw and non-woven mat with seeds and fertilizer attached. This is a method similar to the above-described net construction method 2. 4. Concrete block frame method The concrete block frame is assembled diagonally on the slope,
This is a method of growing plants by putting soil in blocks. 5. Void concrete method This is a method to improve the water permeability by mixing foam aggregate or adding a foaming agent into the concrete covering the slope to create many voids in the concrete itself. Plants are grown in pots in the voids in the concrete. 6. Weak alkali or weak acid concrete method This is a method in which the concrete surface covering the slope is treated with chemicals, or the concrete surface is coated with a weak alkali or weak acid substance to make the condition suitable for plant growth.
【0004】[0004]
【発明が解決しようとする課題】しかしながら,これら
従来の工法には次のような問題がある。上記1の泥吹き
工法は,下地が岩やコンクリートである場合は,接着強
度が不足し,崩壊する心配がある。また,雨にも弱い。
上記2のネット工法と上記3のマット工法は,発芽率が
上記1の泥吹き工法よりも劣る。また,これらの方法
も,下地が岩やコンクリートである場合に不向きであ
る。上記4のコンクリートブロック枠工法は,コンクリ
ートブロックの形状によっては下地を平面に仕上げる必
要がある。またブロックの重量が大きいため,墜落を防
ぐためにブロックを下地にしっかりと固定する必要があ
る。上記5の.空隙コンクリート工法は,素材がコンク
リートのため,アルカリ度が高く,植物はポット以外の
所で育たない。また,通気性が良すぎて高頻度で散水し
ないと植物が枯渇してしまう。上記6の弱アルカリ又は
弱酸性のコンクリート工法は,根の育成が困難なことか
ら,育つ植物が苔類に限定される。この工法ではコンク
リートの上に苔がむすだけで植物の育成までは望めな
い。However, these conventional methods have the following problems. In the case of the above-mentioned mud-blowing method 1, when the foundation is rock or concrete, the adhesive strength is insufficient, and there is a fear of collapse. It is also vulnerable to rain.
The germination rate of the net method 2 and the mat method 3 is inferior to that of the mud blowing method 1. These methods are also unsuitable when the ground is rock or concrete. In the concrete block framing method of 4 above, it is necessary to finish the groundwork to a flat surface depending on the shape of the concrete block. Also, due to the heavy weight of the block, it is necessary to firmly fix the block to the ground to prevent it from falling. 5 above. In the void concrete method, since the material is concrete, alkalinity is high, and plants do not grow in places other than pots. In addition, plants are depleted unless water is sprayed frequently because of good ventilation. In the weak alkaline or weakly acidic concrete method 6 described above, the growing plants are limited to moss because it is difficult to grow the roots. With this method, only moss is peeled off the concrete, and it cannot be expected to grow plants.
【0005】本発明の目的は,コンクリートで保護され
た斜面や削り取られて岩盤が露出した岩肌などを良好に
保護しつつ植物を育成させることも可能な斜面保護用組
成物及び工法を提供することにある。[0005] It is an object of the present invention to provide a composition and a method for protecting a slope capable of breeding plants while well protecting a slope protected by concrete and a rock surface which has been shaved and exposed to rock. It is in.
【0006】[0006]
【課題を解決するための手段】この目的を達成するため
に,請求項1の発明によれば,1.5重量部未満の化学
石膏,0.5〜2.0重量部の高炉スラグセメント,
0.2重量部以下の普通ポルトランドセメント,1.2
〜3.0重量部の鉱物質繊維,0.2〜1.0重量部の
天然繊維,3〜12重量部の水を配合することを特徴と
する斜面保護用組成物が提供される。この請求項1の斜
面保護用組成物において,請求項2に記載したように,
更に高炉スラグセメントと普通ポルトランドセメントの
合計の重量に対して0.5〜1.5重量%のメチルセル
ロースを含むことことが好ましい。また請求項2に記載
したように,更に種子と肥料を混入させることが好まし
い。To achieve this object, according to the invention of claim 1, less than 1.5 parts by weight of chemical gypsum, 0.5 to 2.0 parts by weight of blast furnace slag cement,
0.2% by weight or less of ordinary Portland cement, 1.2
The present invention provides a composition for protecting a slope, comprising -3.0 parts by weight of mineral fibers, 0.2-1.0 parts by weight of natural fibers, and 3-12 parts by weight of water. In the composition for protecting a slope according to claim 1, as described in claim 2,
Further, it is preferable to contain 0.5 to 1.5% by weight of methylcellulose based on the total weight of the blast furnace slag cement and the ordinary Portland cement. Further, as described in claim 2, it is preferable to further mix seeds and fertilizer.
【0007】また請求項4の発明によれば,1.5重量
部未満の化学石膏,0.5〜2.0重量部の高炉スラグ
セメント,0.2重量部以下の普通ポルトランドセメン
ト,1.2〜3.0重量部の鉱物質繊維,0.2〜1.
0重量部の天然繊維,3〜12重量部の水を配合してな
る組成物で斜面を覆うことを特徴とする斜面保護工法が
提供される。この請求項4の斜面保護用工法において,
請求項5に記載したように,更に高炉スラグセメントと
普通ポルトランドセメントの合計の重量に対して0.5
〜1.5重量%のメチルセルロースを含む組成物で斜面
を覆うことが好ましい。また請求項6に記載したよう
に,更に種子と肥料を混入させた組成物で斜面を覆うこ
とが好ましい。According to a fourth aspect of the present invention, less than 1.5 parts by weight of chemical gypsum, 0.5 to 2.0 parts by weight of blast furnace slag cement, 0.2 parts by weight or less of ordinary Portland cement, 2 to 3.0 parts by weight of mineral fiber, 0.2 to 1.
A slope protection method is provided, wherein the slope is covered with a composition comprising 0 parts by weight of natural fiber and 3 to 12 parts by weight of water. In the slope protection method according to claim 4,
Further, as described in claim 5, the total weight of blast furnace slag cement and ordinary Portland cement is 0.5%.
It is preferred to cover the slope with a composition comprising ~ 1.5% by weight methylcellulose. Further, as described in claim 6, it is preferable to cover the slope with a composition further mixed with seeds and fertilizer.
【0008】これら請求項1〜3の斜面保護用組成物及
び請求項4〜6の斜面保護用工法において,鉱物質繊維
には,例えば岩綿やグラスウール,カーボン繊維などと
いった無機繊維材料が使用される。この場合,鉱物質繊
維は外径が約1〜10mm程度の毛玉状粒(粒状岩綿
等)に形成されていることが好ましい。また,天然繊維
には,例えばピートモス,水ゴケ,木材チップ等の材料
が使用される。また,肥料には,例えばカリウム,リ
ン,窒素の等比肥料を用いると良い。そして,請求項
2,5に記載したように,セメントに対して所定量のメ
チルセルロースを含むことにより,組成物の流動性が良
くなってポンプで圧送し易くなり,作業性が向上する。In the slope protection compositions according to claims 1 to 3 and the slope protection method according to claims 4 to 6, inorganic fiber materials such as rock wool, glass wool and carbon fiber are used as the mineral fibers. You. In this case, it is preferable that the mineral fibers are formed into pill-like grains (such as granular rock wool) having an outer diameter of about 1 to 10 mm. In addition, materials such as peat moss, water moss, and wood chips are used as the natural fibers. Further, as the fertilizer, for example, it is preferable to use potassium, phosphorus, and nitrogen isometric fertilizers. And, as described in the second and fifth aspects, by including a predetermined amount of methylcellulose with respect to the cement, the fluidity of the composition is improved, the composition is easily pumped, and the workability is improved.
【0009】なお請求項7に記載したように,肥料の混
入量は,斜面の面積1m2当たり50〜200gである
のが良い。また,請求項8に記載したように,組成物を
吹き付けることによって斜面を覆うようにすることがで
きる。[0009] As described in claim 7, the mixing amount of the fertilizer is preferably 50 to 200 g per 1 m 2 of the slope area. Further, as described in claim 8, the slope can be covered by spraying the composition.
【0010】[0010]
【発明の実施の形態】本発明では,1.5重量部未満の
化学石膏,0.5〜2.0重量部の高炉スラグセメン
ト,0.2重量部以下の普通ポルトランドセメント,
1.2〜3.0重量部の鉱物質繊維,0.2〜1.0重
量部の天然繊維,3〜12重量部の水を配合し,好まし
くは,これに更に高炉スラグセメントと普通ポルトラン
ドセメントの合計の重量に対して0.5〜1.5重量%
のメチルセルロースを混入させ,また,種子と肥料を混
入させる。そして,混ぜ合わせてペースト状にした組成
物を,例えば法面などの斜面に吹き付けるなどして,斜
面を組成物で覆い保護することを特徴としている。な
お,組成物をポンプで圧送する場合は,セメントに対し
て所定量のメチルセルロースを含むことにより,組成物
の流動性が良くなって圧送し易くなり,作業性が向上す
る。また,斜面を組成物で覆う場合,地肌を削り取って
形成した斜面に直接組成物を付着させても良いし,既に
コンクリートで覆われている斜面に更に組成物を付着さ
せても良い。DETAILED DESCRIPTION OF THE INVENTION In the present invention, less than 1.5 parts by weight of chemical gypsum, 0.5 to 2.0 parts by weight of blast furnace slag cement, 0.2 parts by weight or less of ordinary Portland cement,
1.2 to 3.0 parts by weight of mineral fiber, 0.2 to 1.0 part by weight of natural fiber, 3 to 12 parts by weight of water, preferably further mixed with blast furnace slag cement and ordinary Portland semester 0.5 to 1.5% by weight based on the total weight of the
Methylcellulose, and seeds and fertilizer. Then, the composition formed by mixing and forming a paste is sprayed on, for example, a slope such as a slope to cover and protect the slope with the composition. When the composition is pumped by a pump, by including a predetermined amount of methylcellulose with respect to the cement, the fluidity of the composition is improved, the composition is easily pumped, and the workability is improved. When the slope is covered with the composition, the composition may be directly attached to the slope formed by shaving the ground, or the composition may be further attached to the slope already covered with concrete.
【0011】ここで,一般的に使用されている普通コン
クリートは通常pH12〜13の強アルカリであり,低
アルカリコンクリートでもpH10〜11であって,こ
れらは植物を育成させることができない。本発明の組成
物では,酸性の石膏,ピートモスや,低アルカリの高炉
スラグセメントなどを配合することで,植物の育成が可
能なpH9.5以下の組成物を得ることができる。The commonly used ordinary concrete is usually a strong alkali having a pH of 12 to 13, and even a low alkali concrete has a pH of 10 to 11, which cannot grow plants. In the composition of the present invention, a composition having a pH of 9.5 or less, at which plants can be grown, can be obtained by mixing acidic gypsum, peat moss, low alkali blast furnace slag cement, and the like.
【0012】一方,斜面を十分な強度で覆い,かつ,種
子が発芽できる強度とすることは矛盾に近い要求であ
る。斜面を保護するためにはできるだけ強いことが望ま
しく,逆に発芽するためにはできるだけ弱いことが望ま
しい。例えば,厚さ10cmのコンクリートで45°の
傾斜の斜面を保護するためには,コンクリートの圧縮強
度は0.20kgf/cm2以上あれば良い。一方,発
芽のためには圧縮強度5kgf/cm2以下が望まれ
る。本発明の組成物は,天然繊維や人工繊維などの含有
分を多くし,固結材ともいえる石膏及び高炉スラグセメ
ントを適量に配合しているので,圧縮強度を0.20〜
5kgf/cm2(28日目強度)とすることができ,
これら両方の要求を解決している。On the other hand, it is a near contradictory requirement to cover the slope with sufficient strength and to have a strength capable of germinating seeds. It is desirable to be as strong as possible to protect the slope, and as weak as possible to germinate. For example, in order to protect a slope having a slope of 45 ° with concrete having a thickness of 10 cm, the concrete should have a compressive strength of 0.20 kgf / cm 2 or more. On the other hand, for germination, a compressive strength of 5 kgf / cm 2 or less is desired. Since the composition of the present invention contains a large amount of natural fibers and artificial fibers, and contains an appropriate amount of gypsum and blast furnace slag cement, which can be considered as a solidifying material, the composition has a compressive strength of 0.20 to 0.20.
5 kgf / cm 2 (day 28 strength)
Both of these requirements have been resolved.
【0013】また,植物の発育には土中水分(Vol
比)は45%以上必要とされている。ある条件下で,本
発明の配合物は植物の発育に必要な保水機能において土
と同じ程度の性能を14日間(2週間)保つことが証明
された。我が国では,通常2週間に1度程度は降雨があ
るので,その間の含水率が45%を保持できれば,植物
の育成に適していると判断できる。本発明の組成物の含
水率が45%以上となるのは,保持組成物中の物質繊維
と天然繊維が保水材として機能することによると考えら
れる。なお,空隙コンクリートのように毛細管現象の得
られない物質では,コンクリート内部を逆に乾燥促進さ
せ,保水性能は極端に落ちてしまう。[0013] In addition, soil growth (Vol.
Ratio) is required to be 45% or more. Under certain conditions, the formulations of the present invention have been shown to retain the same performance as soil in the water retention function required for plant development for 14 days (2 weeks). In Japan, rain usually occurs about once every two weeks, so if the water content during that period can be maintained at 45%, it can be determined that the plant is suitable for growing plants. It is considered that the reason why the water content of the composition of the present invention is 45% or more is that the material fiber and the natural fiber in the holding composition function as a water retention material. In the case of a substance that does not have a capillary phenomenon, such as void concrete, the inside of the concrete is accelerated to dry, and the water retention performance is extremely reduced.
【0014】更に,植物の根が張るためには空隙が必要
である。本発明の組成物は,植物の根が張るのに必要な
空隙を持つことができる。Furthermore, a void is necessary for the roots of the plant to be stretched. The compositions of the present invention can have the necessary voids for plant rooting.
【0015】[0015]
【実施例】先ず,表1に示した重量比で配合して良く混
ぜ合わせた組成物に,西洋芝の種子を混入させて育苗箱
に移し,一軸圧縮強度,含水比,pH値を調べた。その
結果を表2,図1,2に示した。なお,表2は時間経過
に伴う一軸圧縮強さ(kgf/cm2)の変化を示し
た。更に,時間経過に伴う発芽数を図3に示した。な
お,図1〜3では,園芸土のみを使用した比較例(配合
3)も併せて示した。EXAMPLES First, the seeds of western turf were mixed into a well-mixed composition mixed at the weight ratios shown in Table 1 and transferred to a nursery box, and the uniaxial compressive strength, water content, and pH value were examined. . The results are shown in Table 2, FIGS. Table 2 shows the change in uniaxial compressive strength (kgf / cm 2 ) with the passage of time. FIG. 3 shows the number of germinations over time. FIGS. 1 to 3 also show a comparative example (formulation 3) using only horticultural soil.
【0016】[0016]
【表1】 [Table 1]
【0017】[0017]
【表2】 [Table 2]
【0018】一軸圧縮強度については,配合1,2のい
ずれも植物の発芽,生育に悪影響を及ぼす強度までは達
しなかった。含水比の変動は,配合1よりも配合2の方
が比較的落ち着いており,発芽も多いことがわかる。配
合3は打ち込みの時の含水比が低かったため,種子の水
分の吸収が遅れ発芽も遅れたと思われる。配合1よりも
セメントの多い配合2の方がアルカリ度が高いが,発芽
に関しては配合2の方が多いことから,この程度のpH
値の差では発芽に対して影響が少ない。全体的には,配
合2の方が植物の育成に適していた。Regarding the uniaxial compressive strength, none of Formulations 1 and 2 reached a strength that adversely affected the germination and growth of plants. It can be seen that the fluctuation of the water content ratio is relatively more calm in Formula 2 than in Formula 1 and that germination is larger. Formulation 3 was considered to have a low water content at the time of implantation, so that the absorption of water by the seeds was delayed and the germination was delayed. Formula 2 with more cement than Formula 1 has a higher alkalinity, but as for germination, Formula 2 has a higher pH.
Differences in value have little effect on germination. Overall, Formulation 2 was more suitable for growing plants.
【0019】次に,植物の生育に特に影響を与える,カ
リウム,リン,窒素の等比肥料を使用し,植物の生育と
肥料の配合量の関係を調べた。また,肥料を組成物の表
面に散布した場合と,組成物中に混入させた場合の2方
法を行い,比較した。先ず,表3に示した割合で,水・
石膏・高炉スラグ・セメント・粒状石綿・ピートモスを
配合し,良く混ぜ合わせた。その後,西洋芝の種子を入
れた組成物を育苗箱に移し,肥料を上から散布した。一
方,別の育苗箱には,西洋芝の種子と肥料を組成物中に
混入させたものを移した。それぞれについて発芽数,成
長率を観察し,肥料の適正量と供給方法を調べた。時間
経過に伴う発芽数を図4に示す。また,時間経過に伴う
成長率を図5に示す。Next, the relationship between the growth of the plant and the amount of the fertilizer was examined using an equal-potassium fertilizer of potassium, phosphorus and nitrogen, which particularly affects the growth of the plant. In addition, two methods, one in which fertilizer was sprayed on the surface of the composition and the other in which it was mixed in the composition, were compared. First, at the rate shown in Table 3, water
Gypsum, blast furnace slag, cement, granular asbestos and peat moss were mixed and mixed well. Thereafter, the composition containing the seeds of Western turf was transferred to a nursery box, and fertilizer was sprayed from above. On the other hand, the seedlings of Western turf and fertilizer mixed in the composition were transferred to another nursery box. The germination number and growth rate of each were observed, and the appropriate amount of fertilizer and supply method were examined. FIG. 4 shows the number of germinations over time. FIG. 5 shows the growth rate over time.
【0020】[0020]
【表3】 [Table 3]
【0021】組成物1m3当たりの肥料の混入量は,N
o1が50g,No2が100g,No3が150g,
No4が200gに相当する。図4の発芽率を見ると,
肥料を混入させた場合の方が良い結果が得られた。な
お,肥料の混入量は1m2当たり50〜200gである
のが良く,1m2当たり100g〜150gが最も適正
な量と思われる。図5の成長率を見ても,肥料を混入さ
せた場合の方が良い結果が得られた。肥料の混入量は1
m2あたり約150g程度が更に適正な量と思われる。
また肥料の影響が成長に関与してくるのは発芽から20
日程度経過してからであった。従って,肥料を組成物中
に約150g/m2程度混入させることが最も効率の良
い肥料の供給方法といえる。The amount of fertilizer mixed per m 3 of the composition was N
o1 is 50 g, No2 is 100 g, No3 is 150 g,
No. 4 corresponds to 200 g. Looking at the germination rate in Fig. 4,
Better results were obtained when fertilizers were mixed. Incidentally, amount of mixed fertilizers may in the range of 50~200g per 1 m 2, 1 m 2 per 100g~150g is considered to be the most appropriate amount. Looking at the growth rate in FIG. 5, better results were obtained when the fertilizer was mixed. The amount of fertilizer is 1
about 150g approximately per m 2 is deemed more appropriate amount.
The effect of fertilizer on growth is only 20
About a day has passed. Therefore, it can be said that mixing the fertilizer into the composition at about 150 g / m 2 is the most efficient fertilizer supply method.
【0022】更に,吹き付け厚さについて調べた。組成
物の厚さを変えて,施工時の含水比の時間経過による変
化を調べた。1.0重量部の化学石膏,1.0重量部の
高炉スラグセメント,0.05重量部の普通ポルトラン
ドセメント,2.0重量部の鉱物質繊維(粒状岩綿),
0.4重量部の天然繊維(ピートモス),6.0重量部
の水を配合し,それらを良く混ぜ合わせて5cm,7.
5cm,10cm,12.5cm,15cmの厚さにそ
れぞれ打ち込み,内部にセンサーを設置した。組成物中
の含水比の変化をセンサーで計測した。Further, the spray thickness was examined. The change in the water content during the construction was examined over time by changing the thickness of the composition. 1.0 part by weight of chemical gypsum, 1.0 part by weight of blast furnace slag cement, 0.05 part by weight of ordinary Portland cement, 2.0 parts by weight of mineral fiber (granular rock wool),
0.4 parts by weight of natural fiber (peat moss) and 6.0 parts by weight of water are blended, and they are mixed well to give 5 cm, 7.
Driving was performed at a thickness of 5 cm, 10 cm, 12.5 cm, and 15 cm, respectively, and a sensor was installed inside. The change in the water content in the composition was measured with a sensor.
【0023】打ち込み直後は全ての試験体のセンサーが
急激な含水比の減少を示した。これは組成物の下のコン
クリートに水分を吸収されるためと考えられる。その
後,表面からの蒸発によって水分が減少し,打ち込みか
ら15日目程度で組成物表面側の方が下部よりも低い含
水比を示した。コンクリートで保護された斜面に本願発
明の組成物を付着させる場合は,打ち込み前に散水をす
ることが好ましいことが判った。組成物の打ち込み厚さ
が12.5cmの場合が最も保水力があり,それ以上の
厚さになると逆に保水力の低下が早まる結果となった。Immediately after the injection, the sensors of all the specimens showed a sharp decrease in the water content. This is believed to be due to the absorption of moisture by the concrete under the composition. Thereafter, the water content was reduced by evaporation from the surface, and about 15 days after the implantation, the composition surface side showed a lower moisture content than the lower part. In the case where the composition of the present invention is applied to a slope protected by concrete, it has been found that it is preferable to spray water before pouring. When the thickness of the composition was 12.5 cm, the water retention was the highest, and when the thickness was more than that, the water retention decreased rapidly.
【0024】[0024]
【発明の効果】本発明によれば,コンクリートで保護さ
れた斜面や削り取られて岩盤が露出した岩肌などを崩壊
することなく有効に保護しつつ,斜面に植物を育成させ
ることも可能となる。このため,周囲の景観を害するこ
とのない緑化が可能な斜面を形成できる。According to the present invention, it is possible to grow plants on the slope while effectively protecting the slope protected by concrete and the rock surface where the rock has been exposed and exposed to the ground without collapsing. For this reason, the slope which can be greened without harming the surrounding scenery can be formed.
【図1】一軸圧縮強度の経時的変化を示すグラフであ
る。FIG. 1 is a graph showing a change with time of a uniaxial compressive strength.
【図2】含水比の経時的変化を示すグラフである。FIG. 2 is a graph showing a change over time in a water content ratio.
【図3】pH値の経時的変化を示すグラフである。FIG. 3 is a graph showing a change over time of a pH value.
【図4】発芽数の経時的変化を示すグラフである。FIG. 4 is a graph showing the change over time in the number of germinations.
【図5】成長率の経時的変化を示すグラフである。FIG. 5 is a graph showing a change over time in a growth rate.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 FI //(C04B 28/14 7:02 7:19 14:46 16:12) 111:00 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI // (C04B 28/14 7:02 7:19 14:46 16:12) 111: 00
Claims (8)
2.0重量部の高炉スラグセメント,0.2重量部以下
の普通ポルトランドセメント,1.2〜3.0重量部の
鉱物質繊維,0.2〜1.0重量部の天然繊維,3〜1
2重量部の水を配合することを特徴とする斜面保護用組
成物。Claims: 1. Chemical gypsum less than 1.5 parts by weight, from 0.5 to
2.0 parts by weight of blast furnace slag cement, 0.2 parts by weight or less of ordinary Portland cement, 1.2 to 3.0 parts by weight of mineral fiber, 0.2 to 1.0 part by weight of natural fiber, 3 to 1
A composition for protecting a slope, comprising 2 parts by weight of water.
ンドセメントの合計の重量に対して0.5〜1.5重量
%のメチルセルロースを含むことを特徴とする請求項1
の斜面保護用組成物。2. The method according to claim 1, further comprising 0.5 to 1.5% by weight of methylcellulose based on the total weight of the blast furnace slag cement and the ordinary Portland cement.
For protecting slopes.
とする請求項1又は2の斜面保護用組成物。3. The slope protecting composition according to claim 1, further comprising a mixture of seed and fertilizer.
2.0重量部の高炉スラグセメント,0.2重量部以下
の普通ポルトランドセメント,1.2〜3.0重量部の
鉱物質繊維,0.2〜1.0重量部の天然繊維,3〜1
2重量部の水を配合してなる組成物で斜面を覆うことを
特徴とする斜面保護工法。4. Less than 1.5 parts by weight of chemical gypsum, from 0.5 to
2.0 parts by weight of blast furnace slag cement, 0.2 parts by weight or less of ordinary Portland cement, 1.2 to 3.0 parts by weight of mineral fiber, 0.2 to 1.0 part by weight of natural fiber, 3 to 1
A slope protection method comprising covering the slope with a composition comprising 2 parts by weight of water.
ンドセメントの合計の重量に対して0.5〜1.5重量
%のメチルセルロースを含む組成物で斜面を覆うことを
特徴とする請求項4に記載の斜面保護工法。5. The method according to claim 4, wherein the slope is further covered with a composition containing 0.5 to 1.5% by weight of methylcellulose based on the total weight of the blast furnace slag cement and the ordinary Portland cement. Slope protection method.
面を覆うことを特徴とする請求項4又は5に記載の斜面
保護工法。6. The slope protection method according to claim 4, wherein the slope is covered with a composition containing a mixture of seeds and fertilizer.
が50〜200gであることを特徴とする請求項6に記
載の斜面保護工法。7. The slope protection method according to claim 6, wherein the amount of fertilizer mixed per 1 m 2 of the slope area is 50 to 200 g.
する請求項4,5,6又は7のいずれかに記載の斜面保
護工法。8. The slope protection method according to claim 4, wherein the composition is sprayed on the slope.
Priority Applications (1)
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JP29169297A JP3183854B2 (en) | 1997-10-08 | 1997-10-08 | Slope protection composition and slope protection method |
Applications Claiming Priority (1)
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JP29169297A JP3183854B2 (en) | 1997-10-08 | 1997-10-08 | Slope protection composition and slope protection method |
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JP3183854B2 true JP3183854B2 (en) | 2001-07-09 |
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CN109041691A (en) * | 2018-08-13 | 2018-12-21 | 紫金矿业集团股份有限公司 | Utilize the method for repairing mining area abrupt slope of sowing grass seeds by duster in lime with body refuse machinery |
CN111302750A (en) * | 2020-03-25 | 2020-06-19 | 中国电建集团成都勘测设计研究院有限公司 | Gel material and concrete suitable for plant growth |
CN116024994B (en) * | 2023-03-27 | 2023-06-06 | 北京林业大学 | Construction method of ecological integrated slope protection system |
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