JP2009270302A - Pavement structure - Google Patents

Pavement structure Download PDF

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JP2009270302A
JP2009270302A JP2008120547A JP2008120547A JP2009270302A JP 2009270302 A JP2009270302 A JP 2009270302A JP 2008120547 A JP2008120547 A JP 2008120547A JP 2008120547 A JP2008120547 A JP 2008120547A JP 2009270302 A JP2009270302 A JP 2009270302A
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pavement structure
properties
water
cement
pavement
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Kanji Nakajima
観司 中島
Masashi Shikada
昌史 鹿田
Keiko Sakamoto
惠子 阪本
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BIG BIO KK
SHIIMA CONSULTANT KK
Cima Consultant KK
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BIG BIO KK
SHIIMA CONSULTANT KK
Cima Consultant KK
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Priority to JP2008120547A priority Critical patent/JP2009270302A/en
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/04—Portland cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/02—Agglomerated materials, e.g. artificial aggregates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0004—Compounds chosen for the nature of their cations
    • C04B2103/001—Alkaline earth metal or Mg-compounds
    • C04B2103/0012—Mg
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
    • C04B2111/00284—Materials permeable to liquids
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/2092—Resistance against biological degradation
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Road Paving Structures (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pavement structure which has an appearance excellent in harmony with the natural environment, has both water permeability and water retentivity, and has fungicidal properties, mildewproof properties, and water purification properties. <P>SOLUTION: A soil-based aggregate 10, a cement-based solidifying material 11, and bacteria 16 having fungicidal properties, mildewproof properties, and water purification properties are added into a mixer 12 to be sufficiently agitated and mixed. Subsequently a granulating agent 14 is added thereto, and the mixture is further agitated and kneaded to form a slurry mixture 15. The mixture 15 is installed on a roadbed, and cured and solidified to complete a pavement structure. As the pavement structure has a three-dimensional network structure, it exhibits excellent water permeability and water retentivity, and it contains the soil-based aggregate 10, thereby providing an appearance excellent in harmony with the natural environment. The pavement structure contains the microorganisms 16 having fungicidal properties, mildewproof properties, and water purification properties, thereby exhibiting excellent fungicidal properties, mildewproof properties and water purification properties over a long period of time after the construction. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、透水性、保水性、防カビ性、防苔性及び浄水性などを備えた舗装構造に関する。   The present invention relates to a pavement structure having water permeability, water retention, mold prevention, moss prevention, water purification, and the like.

車道、歩道、公園内の通路あるいは駐車場などの舗装工事を行う場合、透水性及び保水性を備えた舗装構造の採用が増えているが、本願発明に関連する舗装技術として、特許文献１に記載の路盤施工法がある。この、路盤施工法の特徴は、ガラス粉末、フライアッシュセメント及び高分子化合物の混練物を路床に打設、固化させることによって路盤を形成することにある。   When pavement works such as roadways, sidewalks, walkways in parks or parking lots, the use of pavement structures with water permeability and water retention is increasing, but as paving technology related to the present invention, Patent Document 1 There is a roadbed construction method described. This roadbed construction method is characterized in that a roadbed is formed by placing and solidifying a kneaded product of glass powder, fly ash cement and a polymer compound on the roadbed.

特開２００２−１４６７０８号公報JP 2002-146708 A

特許文献１記載の路盤施工法により、透水性、保水性を備え、耐スリップ性が高く、耐久性にも優れた舗装面を形成することができるが、ガラス粉末及びフライアッシュセメントを主成分としているため、舗装面は無機質で冷たい印象があり、外観性に劣る。特に、自然環境との外観的調和が求められる場所に施工した場合、周囲の景色に馴染まず、違和感を与えることが多い。   By the roadbed construction method described in Patent Document 1, it is possible to form a paved surface having water permeability and water retention, high slip resistance, and excellent durability, but mainly composed of glass powder and fly ash cement. Therefore, the pavement surface is inorganic and has a cold impression, and the appearance is inferior. In particular, when it is constructed in a place where external harmony with the natural environment is required, it often gives a sense of incongruity without being familiar with the surrounding scenery.

また、歩道などのように人間が歩く場所に敷設した場合、舗装面から視覚を通じて受ける印象によって歩く感触が左右されることが多いため、硬質で歩きにくいような感じを与えている。さらに、特許文献１記載の路盤施工法によって形成される舗装構造は、水分を長期間にわたって保持することがあるため、舗装面にカビが生えたり、苔が生えたりすることもある。   In addition, when a person walks like a sidewalk, the feeling of walking is often influenced by the visual impression received from the pavement surface, which gives a hard and difficult to walk feeling. Furthermore, since the pavement structure formed by the roadbed construction method described in Patent Document 1 may retain moisture for a long period of time, mold or moss may grow on the pavement surface.

本発明が解決しようとする課題は、自然環境との調和性に優れた外観を有し、透水性、と保水性とを兼備し、防カビ性、防苔性及び浄水性も備えた舗装構造を提供することにある。   The problem to be solved by the present invention is a pavement structure having an appearance excellent in harmony with the natural environment, having water permeability and water retention, and also having mold prevention, moss prevention and water purification. Is to provide.

本発明の舗装構造は、セメント系固化材、セメント、消石灰のうちの１以上と、土系骨材と、団粒化剤と、防カビ性、防苔性及び浄水性を有する微生物と、を含む混合物を路盤上に打設し、固化させて形成したことを特徴とする。   The pavement structure of the present invention comprises at least one of a cement-based solidified material, cement, and slaked lime, an earth-based aggregate, an aggregating agent, and a microorganism having an antifungal property, an anti-moss property and a water purification property. It is characterized in that it is formed by placing a mixture containing it on a roadbed and solidifying it.

このような構成とすれば、セメント系固化材、セメント、消石灰のうちの１以上と、土質骨材と、団粒化剤とを含む混合物中においては、団粒化剤に含まれるイオンの作用により、セメント系固化材、セメント、消石灰のうちの１以上と土系骨材の粒子とが立体網目構造を形成するため、連続した空隙が発生する。従って、これらの混合物を固化させることにより、透水性と保水性とをバランス良く兼備した舗装構造を得ることができる。また、土系骨材を含むことにより、舗装面は天然土に似た特有の外観、色調、質感を発現するため、自然環境との調和性にも優れている。   With such a configuration, in a mixture containing at least one of cement-based solidifying material, cement, slaked lime, soil aggregate, and aggregating agent, the action of ions contained in the aggregating agent As a result, one or more of the cement-based solidified material, cement, and slaked lime and the particles of the earth-based aggregate form a three-dimensional network structure, so that continuous voids are generated. Therefore, by solidifying these mixtures, a pavement structure having both water permeability and water retention can be obtained. In addition, by including earth-based aggregate, the pavement surface expresses a peculiar appearance, color tone, and texture similar to natural soil, and is therefore excellent in harmony with the natural environment.

また、本発明の舗装構造中には、防カビ性、防苔性及び浄水性を有する微生物が含まれているため、施工後も長期間にわたって防カビ作用及び防苔作用を発揮する。また、前記微生物の浄水性により、当該舗装構造中に保持される水分及び当該舗装構造を通過する水分を浄化（殺菌、滅菌）することができるため、当該舗装構造を通過して地下へ浸透する水分に起因する土壌汚染を防止することができる。従って、当該舗装構造の下方に地下貯水構造を構築すれば、当該舗装構造中の微生物によって浄化された清浄な水を貯留することができる。   In addition, since the pavement structure of the present invention contains microorganisms having fungicidal properties, moss-proofing properties and water purification properties, the fungicidal and mossy-proofing effects are exhibited over a long period after construction. Moreover, since the water | moisture content hold | maintained in the said pavement structure and the water | moisture content which passes the said pavement structure can be purified (sterilization, sterilization) by the water purification of the said microorganisms, it penetrates into the underground through the said pavement structure. Soil contamination due to moisture can be prevented. Therefore, if an underground water storage structure is constructed below the pavement structure, clean water purified by microorganisms in the pavement structure can be stored.

なお、本発明の舗装構造に含まれる土系骨材は舗装部分を一定形状に維持する主材料となり、団粒化剤は土系骨材とセメント系固化材の粒子を団粒化させ、立体網目構造へ変化させる作用を果たし、セメント系固化材、セメント、消石灰はそれぞれ、団粒化剤によって形成された立体網目構造を、外力で破壊されない強度に固める作用を果たす。なお、セメント系固化材、セメント、消石灰は、土系骨材の種類、当該舗装構造の施工場所などに応じて使い分けることが望ましく、２以上を混合して使用することもできる。   Note that the earth-based aggregate contained in the pavement structure of the present invention is a main material that maintains the pavement part in a certain shape, and the aggregating agent aggregates the particles of the earth-based aggregate and the cement-based solidifying material to form a solid. The cement-type solidifying material, cement, and slaked lime each have an effect of changing to a network structure, and each of the three-dimensional network structure formed by the aggregating agent has an effect of hardening to a strength that is not destroyed by an external force. The cement-based solidifying material, cement, and slaked lime are desirably used properly according to the type of soil-based aggregate, the construction site of the pavement structure, and the like, and two or more can be mixed and used.

ここで、前記微生物として、バチルススパリカス、バチルスサブチルス、バチルスツリュゲナイセスのうちの１以上を用いることが望ましい。これらの微生物は、自然環境へ悪影響を及ぼすことがなく、舗装構造を構成する成分中においても防カビ性、防苔性及び浄水性を失わないので、長期間にわたって防カビ性、防苔性及び浄水性を維持することができる。なお、これらの微生物の他に枯草菌も好適に使用することができる。   Here, it is desirable to use at least one of Bacillus sp., Bacillus subtilis, and Bacillus thrugenesis as the microorganism. These microorganisms do not adversely affect the natural environment, and do not lose mold prevention, moss prevention and water purification even in the components constituting the pavement structure. Water purification can be maintained. In addition to these microorganisms, Bacillus subtilis can also be preferably used.

一方、前記土系骨材としては、砂質土、粘土、ヘドロのうちの１以上を用いることができる。砂質土、粘土を用いればこれらの素材が具備する独特の質感を備えた舗装構造を形成することができる。また、ヘドロを用いれば、廃棄物の有効活用を図ることができる。また、これらの土系骨材を用いることにより、舗装構造内に微生物の成育に適した環境を形成することができる。   On the other hand, as the earth-based aggregate, one or more of sandy soil, clay and sludge can be used. If sandy soil or clay is used, it is possible to form a pavement structure having the unique texture of these materials. Moreover, if sludge is used, waste can be effectively utilized. Moreover, the environment suitable for the growth of microorganisms can be formed in a pavement structure by using these earth-based aggregates.

また、前記団粒化剤として、アクリル酸・メタクリル酸ジメチルアミノエチル共重合物のマグネシウム塩とポリエチレンイミンとの複合体を含む高分子化合物を用いると、強固な立体網目構造が形成されるため、舗装構造の強度及び耐久性が向上する。   In addition, when a polymer compound containing a complex of a magnesium salt of acrylic acid / dimethylaminoethyl methacrylate copolymer and polyethyleneimine is used as the aggregating agent, a strong three-dimensional network structure is formed. The strength and durability of the pavement structure is improved.

本発明により、自然環境との調和性に優れた外観を有し、透水性と保水性とを兼備し、防カビ性、防苔性及び浄水性も備えた舗装構造を提供することができる。   According to the present invention, it is possible to provide a pavement structure which has an appearance excellent in harmony with the natural environment, has both water permeability and water retention, and also has mold prevention, moss prevention and water purification.

以下、図面に基づいて、本発明の実施の形態について説明する。図１は本発明の実施の形態である舗装構造を示す垂直断面図、図２，図３は図１に示す舗装構造の施工過程の一部を示す図、図４は図３に示す混合物中に形成される立体網目構造の模式図である。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a vertical sectional view showing a pavement structure according to an embodiment of the present invention, FIGS. 2 and 3 are diagrams showing a part of the construction process of the pavement structure shown in FIG. 1, and FIG. 4 is in the mixture shown in FIG. It is a schematic diagram of the three-dimensional network structure formed in.

図１に示すように、本実施形態の舗装構造１は、路床２の上にクラッシャーランを敷設して形成された路盤３の上面に、後述する工程で形成された混合物１５を打設し、固化させることによって形成されている。   As shown in FIG. 1, the pavement structure 1 of the present embodiment places a mixture 15 formed in a process described later on the upper surface of a roadbed 3 formed by laying a crusher run on a roadbed 2, It is formed by solidifying.

ここで、図１及び図２〜図４に基づいて、舗装構造１の施工方法について説明する。図１に示すように、土系骨材１０と、セメント系固化材１１と、防カビ性、防苔性及び浄水性を有する微生物１６をミキサ１２に投入して充分に撹拌、混合する。ミキサ１２はモータ１３などを用いた撹拌駆動機構を有する一般的なものを用いることができる。土系骨材１０とセメント系固化材１１とがムラ無く混合されたら、団粒化剤１４を添加し、さらに撹拌、混練することによってスラリー状の混合物１５を形成する。   Here, based on FIG.1 and FIG.2-4, the construction method of the pavement structure 1 is demonstrated. As shown in FIG. 1, a soil-based aggregate 10, a cement-based solidified material 11, and a microorganism 16 having an antifungal property, a moss-proofing property, and a water purification property are put into a mixer 12 and sufficiently stirred and mixed. The mixer 12 may be a general mixer having a stirring drive mechanism using a motor 13 or the like. When the earth-based aggregate 10 and the cement-based solidified material 11 are mixed evenly, the aggregating agent 14 is added, and the mixture 15 is further stirred and kneaded to form a slurry-like mixture 15.

この後、図３に示すように、前述した混合物１５を路盤３の上面３ａに打設し、固化させると舗装構造１が形成される。なお、混合物１５の打設後は、約１５時間程度静置して養生することが望ましい。   Thereafter, as shown in FIG. 3, when the mixture 15 is placed on the upper surface 3 a of the roadbed 3 and solidified, the pavement structure 1 is formed. In addition, after placing the mixture 15, it is desirable to leave it for about 15 hours for curing.

路盤３の上面３ａに打設された混合物１５中においては、団粒化剤１４の団粒化作用により、図４に示すように、土系骨材１０、セメント系固化材１１などの粒子群が互いに結合して団粒化しながら立体網目構造１９が形成され、この過程において、さらに結合、連結が進行して、大小の間隙を有する多孔質状の粗大粒子２０が形成され、養生過程を経ることによって固化する。混合物１５が完全に固化すると、図１に示すような舗装構造１が完成する。   In the mixture 15 placed on the upper surface 3a of the roadbed 3, due to the aggregating action of the aggregating agent 14, a group of particles such as the earth-based aggregate 10 and the cement-based solidified material 11 as shown in FIG. The solid network structure 19 is formed while the particles are bonded to each other and aggregated, and in this process, the bonding and connection further progress to form porous coarse particles 20 having large and small gaps, and undergo a curing process. Solidify. When the mixture 15 is completely solidified, the pavement structure 1 as shown in FIG. 1 is completed.

前述した工程を経て形成された舗装構造１は、図４に示すような立体網目構造１９を備えているため、この立体網目構造１９内に存在する連続した空隙により、水分を効率的に吸収したり、透過したりする機能が生じ、優れた透水性及び保水性を発揮する。このため、舗装構造１の表面に降り注いだ雨水などは舗装構造１中へ速やかに吸収され、立体網目構造１９内に存在する連続した空隙によって保水されるとともに、保水しきれない雨水は下方へ浸透させることが可能であり、舗装構造１は透水性と保水性とのバランスが良好である。   Since the pavement structure 1 formed through the above-described process has a three-dimensional network structure 19 as shown in FIG. 4, moisture is efficiently absorbed by continuous voids existing in the three-dimensional network structure 19. Or permeate, and exhibits excellent water permeability and water retention. For this reason, rainwater or the like poured on the surface of the pavement structure 1 is quickly absorbed into the pavement structure 1 and is retained by continuous voids existing in the three-dimensional network structure 19, and rainwater that cannot be retained penetrates downward. The pavement structure 1 has a good balance between water permeability and water retention.

さらに、夏季などの気温の高い時期には、舗装構造１中に保持されている水分が表面から蒸発し、その際に気化熱を奪うので、舗装構造１が施工された部分の温度上昇を抑制することができる。このため、ヒートアイランド現象の防止にも有効である。   In addition, when the air temperature is high, such as in summer, the water retained in the pavement structure 1 evaporates from the surface, and the heat of vaporization is taken away. can do. For this reason, it is also effective in preventing the heat island phenomenon.

また、舗装構造１中に土系骨材１０を含んでいることにより、その表面は天然土に似た外観、色調、質感を発現するため、自然環境との調和性に優れた外観性を呈する。さらに、防カビ性、防苔性及び浄水性を有する微生物１６を含んでいるため、施工後、長期間にわたって優れた防カビ性、防苔性及び浄水性を発揮する。   Moreover, by including the earth-based aggregate 10 in the pavement structure 1, the surface exhibits an appearance, color tone, and texture similar to natural soil, and thus exhibits an appearance that is excellent in harmony with the natural environment. . Furthermore, since the microorganism 16 having fungicidal properties, moss-proofing properties and water purification is included, it exhibits excellent antifungal properties, mossy-proofing properties and water-purifying properties over a long period after construction.

また、微生物１６の浄水性により、近傍の臭気を分解したり、水質を浄化したりする作用も発揮するため、悪臭軽減や周辺環境の浄化などの効果も得ることができる。さらに、微生物１６の浄水性により、舗装構造１中に保持される水分及び舗装構造１を通過する水分も浄化（殺菌、滅菌）されるため、当該舗装構造１を通過して地下へ浸透する水分に起因する土壌汚染を防止することもできる。従って、舗装構造１の下方に地下貯水構造４を構築すれば、舗装構造１中の微生物１６によって浄化された清浄な水を貯留することができる。   In addition, the water purification of the microorganism 16 also exerts the effect of decomposing nearby odors and purifying the water quality, so that effects such as reduction of bad odors and purification of the surrounding environment can be obtained. Furthermore, the water that is retained in the pavement structure 1 and the water that passes through the pavement structure 1 are also purified (sterilized and sterilized) by the water purification of the microorganisms 16, so that the water that permeates the pavement through the pavement structure 1. It is also possible to prevent soil contamination caused by. Therefore, if the underground water storage structure 4 is constructed below the pavement structure 1, clean water purified by the microorganisms 16 in the pavement structure 1 can be stored.

図２に示す過程において形成される混合物１５の組成は特に限定するものではないが、本実施形態においては、土系骨材１０として砂質土を用い、セメント系固化材１１として高炉セメントを使用し、団粒化剤１４として有限会社グローバル研究所の「商品名：ＧＢ−２０００」を用い、微生物１６としてバチルススパリカス、バチルスサブチルス、バチルスツリュゲナイセスを含む細菌類（株式会社ビッグバイオの粉末状細菌）を用いたところ、強固な立体網目構造１９が形成されるとともに、優れた防カビ作用・防苔作用を得ることができた。   The composition of the mixture 15 formed in the process shown in FIG. 2 is not particularly limited, but in this embodiment, sandy soil is used as the earth-based aggregate 10 and blast furnace cement is used as the cement-based solidifying material 11. Bacteria containing Bacilli spuricas, Bacillus subtilis, Bacillus turgenises as the microorganism 16 (Big Co., Ltd.) Using bio-powdered bacteria), a solid three-dimensional network structure 19 was formed, and an excellent antifungal and anti-moss action could be obtained.

なお、「ＧＢ−２０００」はアクリル酸・メタクリル酸ジメチルアミノエチル共重合物のマグネシウム塩とポリエチレンイミンとの複合体からなる高分子化合物である。「ＧＢ−２０００」は原液そのまま、あるいは水溶液にして使用することができる。団粒化剤として「ＧＢ−２０００」を使用することにより、強固な立体網目構造１９が形成されるため、舗装構造１の強度及び耐久性を向上させることができる。   “GB-2000” is a polymer compound composed of a composite of a magnesium salt of acrylic acid / dimethylaminoethyl methacrylate copolymer and polyethyleneimine. “GB-2000” can be used as a stock solution or as an aqueous solution. By using “GB-2000” as the aggregating agent, a solid three-dimensional network structure 19 is formed, so that the strength and durability of the pavement structure 1 can be improved.

なお、本実施形態において、混合物１５を構成する各成分の混合比率は次の通りであるが、これに限定するものではないので、舗装構造１の施工場所、土系骨材１０の種類、性状などによって変更することができる。
土系骨材１０（砂質土）：１０００ｋｇ〜１５００ｋｇ
高炉セメント：１００ｋｇ〜２００ｋｇ
団粒化剤１４（ＧＢ−２０００の原液）：１リットル〜１０リットル
微生物１６（株式会社ビッグバイオの粉末状細菌）：１ｋｇ〜１００ｋｇ
水：適量（混合物１５の固さ、流動性を確認しながら添加量を調節する。） In addition, in this embodiment, although the mixing ratio of each component which comprises the mixture 15 is as follows, since it is not limited to this, the construction place of the pavement structure 1, the kind of earth-based aggregate 10, and property It can be changed by
Earth-based aggregate 10 (sandy soil): 1000 kg to 1500 kg
Blast furnace cement: 100kg to 200kg
Aggregating agent 14 (stock solution of GB-2000): 1 liter to 10 liters Microorganism 16 (Powdered bacteria of Big Bio Inc.): 1 kg to 100 kg
Water: appropriate amount (adjustment amount is adjusted while confirming the hardness and fluidity of the mixture 15)

また、混合物１５を形成する際に植物系や樹脂系などの繊維材を入れることも可能であるため、前述と同様、繊維材を混入させて形成した混合物１５を路盤３の上面３ａに打設して、固化させれば、舗装構造１の強度を更に高めることができる。なお、本実施形態の舗装構造１は、大気中に露出した表面層部分に施工しているが、これに限定するものではないので、表面層より下方に位置する中間層あるいは路盤層などとして施工することもできる。   Moreover, since it is also possible to insert a fiber material such as a plant or a resin when forming the mixture 15, the mixture 15 formed by mixing the fiber material is placed on the upper surface 3 a of the roadbed 3 as described above. And if it solidifies, the intensity | strength of the pavement structure 1 can further be raised. In addition, although the pavement structure 1 of this embodiment is applied to the surface layer part exposed in the atmosphere, it is not limited to this, so it is applied as an intermediate layer or a roadbed layer located below the surface layer. You can also

本発明の舗装構造は、車道、歩道、駐車場などの舗装技術として土木建設業の分野において広く利用することができる。   The pavement structure of the present invention can be widely used in the field of civil engineering as a pavement technique for roadways, sidewalks, parking lots, and the like.

本発明の実施の形態である舗装構造を示す垂直断面図である。It is a vertical sectional view showing a pavement structure which is an embodiment of the present invention. 図１に示す舗装構造の施工過程の一部を示す図である。It is a figure which shows a part of construction process of the pavement structure shown in FIG. 図１に示す舗装構造の施工過程の一部を示す図である。It is a figure which shows a part of construction process of the pavement structure shown in FIG. 図３に示す混合物中に形成される立体網目構造の模式図である。It is a schematic diagram of the three-dimensional network structure formed in the mixture shown in FIG.

符号の説明Explanation of symbols

１ 舗装構造
２ 路床
３ 路盤
３ａ 上面
４ 地下貯水構造
１０ 土系骨材
１１ セメント系固化材
１２ ミキサ
１３ モータ
１４ 団粒化剤
１５ 混合物
１６ 微生物
１９ 立体網目構造
２０ 粗大粒子 DESCRIPTION OF SYMBOLS 1 Pavement structure 2 Subgrade 3 Subbase 3a Upper surface 4 Underground water storage structure 10 Earth system aggregate 11 Cement system solidification material 12 Mixer 13 Motor 14 Aggregating agent 15 Mixture 16 Microorganism 19 Three-dimensional network structure 20 Coarse particle

Claims (4)

セメント系固化材、セメント、消石灰のうちの１以上と、土系骨材と、団粒化剤と、防カビ性、防苔性及び浄水性を有する微生物と、を含む混合物を路盤上に打設し、固化させて形成したことを特徴とする舗装構造。   A mixture containing at least one of cement-based solidified material, cement, slaked lime, earth-based aggregate, aggregating agent, and microorganisms having fungicidal, mossy and water-purifying properties is struck onto the roadbed. A pavement structure characterized by being formed and solidified. 前記微生物として、バチルススパリカス、バチルスサブチルス、バチルスツリュゲナイセスのうちの１以上を用いた請求項１記載の舗装構造。   The pavement structure according to claim 1, wherein at least one of Bacillus sp., Bacillus subtilis, and Bacillus crugenis is used as the microorganism. 前記土系骨材として、砂質土、粘土、ヘドロのうちの１以上を用いた請求項１または２記載の舗装構造。   The pavement structure according to claim 1 or 2, wherein at least one of sandy soil, clay, and sludge is used as the earth-based aggregate. 前記団粒化剤として、アクリル酸・メタクリル酸ジメチルアミノエチル共重合物のマグネシウム塩とポリエチレンイミンとの複合体を含む高分子化合物を用いた請求項１〜３の何れかに記載の舗装構造。   The pavement structure according to any one of claims 1 to 3, wherein a polymer compound containing a composite of a magnesium salt of acrylic acid / dimethylaminoethyl methacrylate copolymer and polyethyleneimine is used as the aggregating agent.
JP2008120547A 2008-05-02 2008-05-02 Pavement structure Pending JP2009270302A (en)

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