JP2002115204A - Manufacturing method for permeable concrete block using molten slag of general waste - Google Patents
Manufacturing method for permeable concrete block using molten slag of general wasteInfo
- Publication number
- JP2002115204A JP2002115204A JP2000345882A JP2000345882A JP2002115204A JP 2002115204 A JP2002115204 A JP 2002115204A JP 2000345882 A JP2000345882 A JP 2000345882A JP 2000345882 A JP2000345882 A JP 2000345882A JP 2002115204 A JP2002115204 A JP 2002115204A
- Authority
- JP
- Japan
- Prior art keywords
- water
- concrete block
- slag
- molten slag
- parts
- 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.)
- Pending
Links
- 239000002893 slag Substances 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000002699 waste material Substances 0.000 title claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000004568 cement Substances 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 14
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 7
- 239000004115 Sodium Silicate Substances 0.000 claims description 7
- 239000001110 calcium chloride Substances 0.000 claims description 7
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 7
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 7
- 239000004094 surface-active agent Substances 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000005452 bending Methods 0.000 abstract description 13
- 239000000463 material Substances 0.000 abstract description 7
- 239000011230 binding agent Substances 0.000 abstract description 5
- 239000000049 pigment Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000004056 waste incineration Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 14
- 239000010410 layer Substances 0.000 description 9
- 230000035699 permeability Effects 0.000 description 8
- 238000003825 pressing Methods 0.000 description 8
- 239000004570 mortar (masonry) Substances 0.000 description 5
- 239000002344 surface layer Substances 0.000 description 5
- 230000000704 physical effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000386 athletic effect Effects 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000006253 efflorescence Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【０００１】［発明の属する技術分野］本発明は溶融ス
ラグを主原料に用いた透水性コンクリートの製造方法に
関する。[0001] The present invention relates to a method for producing permeable concrete using molten slag as a main raw material.
【０００２】［従来の技術及び発明が解決しようとする
課題］従来の透水性ブロックは主にセラミックス材をポ
ーラスに焼成したものであり、原料が高価で、さらに焼
結製品であるためにコスト高に加えて圧縮強度や曲げ強
度も十分でなく、又、水に濡れると滑り易いと同時に歩
きにくいという欠点もあった。本発明は上記事情に鑑み
てなされたもので原料コスト、製造コストのいずれにお
いても安価で大量生産が可能で圧縮強度と曲げ強度の強
い透水性コンクリートブロックを提供することにある。
本発明における透水性コンクリートブロックの特徴は廃
棄物を溶融して、得られるスラグを水で急冷して破砕し
た水砕スラグ、セメント、水及びバインダーをスラグ１
ｍ３に対してセメントを３００〜４５０ｋｇ／ｍ３且つ
前記セメントに対する水の重量比が３０〜４０％となる
ように配合し、各種バインダーを加えた混合物を型枠内
で１５〜２５ｋｇ／ｃｍ２の圧力で加圧硬化させたもの
である。[Problems to be Solved by Conventional Techniques and Inventions] Conventional permeable blocks are mainly made of porous ceramic materials, are expensive in raw materials, and costly because they are sintered products. In addition, the compression strength and the bending strength are not sufficient, and when wet with water, they are slippery and difficult to walk. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a permeable concrete block which is inexpensive in both raw material costs and manufacturing costs, can be mass-produced, and has high compressive strength and bending strength.
The feature of the permeable concrete block according to the present invention is that granulated slag, cement, water, and a binder obtained by melting waste, rapidly cooling the obtained slag with water, and crushing the slag 1 are obtained.
The weight ratio of water to 300～450Kg / m 3 and the cement cement against m 3 are blended so as to 30~40%, 15~25kg / cm 2 The mixture was added various binders in a mold Under pressure.
【０００３】原料混合物に塩化カルシウムを用いるのは
防水、弾性、エフロ抑制のためであり、２〜５重量％の
添加で効果は著しい（請求項２の発明）。[0003] The use of calcium chloride in the raw material mixture is for waterproofing, elasticity, and suppression of efflorescence, and its effect is remarkable when added in an amount of 2 to 5% by weight (the invention of claim 2).
【０００４】原料混合物に珪酸ソーダを加えるのは急
結、強度、防水、エフロ抑制のためであり、２〜４重量
％の添加により硬化時間調整ができる利点がある（請求
項３の発明）。[0004] Sodium silicate is added to the raw material mixture for quick setting, strength, waterproofness, and suppression of effluent, and there is an advantage that the curing time can be adjusted by adding 2 to 4% by weight (the invention of claim 3).
【０００５】また、原料混合物にヒドロキシセルロース
を添加するのは製品の粘度調整のためであり、１〜５重
量％の添加により著しい効果がある（請求項４の発
明）。The addition of hydroxycellulose to the raw material mixture is for adjusting the viscosity of the product, and the addition of 1 to 5% by weight has a remarkable effect (the invention of claim 4).
【０００６】さらに原料混合物に界面活性剤を加えるの
は早強性、弾性、エフロ抑制のためであるが、その上有
害、有毒物質の消去にも効果がある。添加量は３〜１０
重量％が望ましい（請求項５の発明）。The addition of a surfactant to the raw material mixture is for the purpose of early strength, elasticity, and suppression of effusion, but it is also effective for eliminating harmful and toxic substances. 3-10
% Is desirable (the invention of claim 5).
【０００７】溶融スラグを用いる利点は、産業廃棄物、
下水汚泥、都市ゴミなどの廃棄物の溶融処理によって得
られるものを使うから原料コストが極めて低くでき、さ
らに廃棄物処理や省資源面で極めて有利である。しかも
スラグは成型のための熱エネルギーが不要の上、製造設
備が簡単にできる。溶融スラグは元来粗粒率が大きく、
天然の川砂や海砂の骨材は粗粒率が２．４０〜２．５０
程度であるが、本発明で用いる溶融スラグの粗粒率は
２．４５〜２．６０であり、セメントを加えて上途のよ
うな成分比で加圧成型した場合、ポーラスな充填構造に
なり易い粒度調整が不要であり、製造コストが安くな
り、かつ、各種バインダーの添加により圧縮強度、曲げ
強度も著しく増大する。The advantages of using molten slag include industrial waste,
Since materials obtained by melting wastes such as sewage sludge and municipal garbage are used, the raw material cost can be extremely reduced, and this is extremely advantageous in terms of waste disposal and resource saving. Moreover, the slag does not require heat energy for molding, and the manufacturing equipment can be simplified. Molten slag originally has a large coarse grain ratio,
Aggregates of natural river sand and sea sand have a coarse grain ratio of 2.40 to 2.50
Although the degree of coarseness of the molten slag used in the present invention is about 2.45 to 2.60, when a cement is added and molded under pressure at a component ratio as shown in the upper half, a porous filling structure is obtained. Easy particle size adjustment is not required, the production cost is reduced, and the addition of various binders significantly increases the compressive strength and bending strength.
【０００８】溶融スラグは水で破砕するため粒子が角張
った形でそのため成型品の表面の摩擦係数が大きく滑り
にくい透水性コンクリートブロックを提供できる。Since the molten slag is crushed by water, the particles have a square shape, so that it is possible to provide a water-permeable concrete block having a large friction coefficient on the surface of a molded product and being less slippery.
【０００９】［発明の作用及び効果］本発明にあたって
は溶融スラグ１ｍ３に対するセメントの配合量が４５０
ｋｇ超になったり、水に対するセメントの配合量が４０
〜５０％超になったり、加圧力が１５〜２０ｋｇ／ｃｍ
２超になると溶融スラグどうしの隙間がセメントで埋め
られて透水性が不十分になる。[Operation and Effect of the Invention] In the present invention, the blending amount of cement with respect to 1 m 3 of molten slag is 450.
kg, or the cement content of water is 40
Up to more than 50%, and the applied pressure is 15-20kg / cm
If it exceeds 2 , the gap between the molten slags is filled with cement, and the water permeability becomes insufficient.
【００１０】また、溶融スラグ１ｍ３に対するセメント
の配合量が３００〜４５０ｋｇ未満になったり、水に対
するセメントの重量比が３０未満になったり、加圧力が
１５ｋｇ／ｃｍ２未満になるとセメントによる溶融スラ
グどうしの結合が弱くなって圧縮強度や曲げ強度が十分
でなくなる。Further, if the amount of cement to 1 m 3 of molten slag is less than 300 to 450 kg, the weight ratio of cement to water is less than 30, or the pressing force is less than 15 kg / cm 2, the molten slag by cement is The bonding between them becomes weak, and the compressive strength and bending strength become insufficient.
【００１１】本発明の特徴は溶融スラグ１ｍ３に対して
セメントが３００〜４５０ｋｇになるようにして、かつ
セメントに対する水の重量比が３０〜４０％になるよう
に配合し、必要に応じて骨材を加え、さらに各種添加物
を混合した後型枠に入れ、その型枠内の混合物を１５〜
２５ｋｇ／ｃｍ２の圧力で加圧して硬化させることにあ
る。The feature of the present invention is that the cement is blended so that 300 to 450 kg of cement is added to 1 m 3 of molten slag and the weight ratio of water to cement is 30 to 40%. After adding materials and further mixing various additives, the mixture is put into a mold, and the mixture in the mold is
Curing by pressurizing at a pressure of 25 kg / cm 2 .
【００１２】本発明で使用した溶融スラグの粒度構成及
び骨材の粒度構成は下記の通りである。 The particle size constitution of the molten slag and the particle size constitution of the aggregate used in the present invention are as follows.
【００１３】［実験例］以下、本発明のいくつかの実施
例について具体的に説明する。[Experimental Examples] Some embodiments of the present invention will be specifically described below.
【００１４】実施例１はスラグを１００％用いた場合の
例である。粒度５〜１３ｍｍのスラグ２，２３０ｋｇ、
セメント３００〜３５０ｋｇ水８５リツトル、塩化カル
シウム０．６ｋｇ、珪酸ソーダ０．５ｋｇ、ヒドロキシ
ルセルロース０．３ｋｇ、界面活性剤ＡＫ−ＳＰ０．０
２ｋｇを混合して、スラグモルタルを調整した。これを
箱状型枠充し、押圧具により１５〜２０ｋｇ／ｃｍ２の
力で締め固めた。次に型枠を抜取り、これを基礎部透水
性平板とした。材令１４日の圧縮強度、曲げ強度透水係
数は下記に示す通りであった。 圧縮強度 ３９．２ Ｎ／ｍｍ２ 曲げ強度 ３．８ Ｎ／ｍｍ２ 透水係数２．５×１０−２ｃｍ／ｓｅｃ 次に表層部スラグモルタルとして粒度０．６〜１．２ｍ
ｍのスラグ４５０ｋｇセメント８０ｋｇ、水１６リツト
ル、塩化カルシウム０．２ｋｇ、珪酸ソーダ０．１２ｋ
ｇヒドロキシセルロース０．６ｋｇ、界面活性剤０．０
８ｋｇを混練した、これを上記基層部透水性平板の上部
に２０ｍｍの厚さに置き、押圧具により２５ｋｇ／ｃｍ
２の力で加圧した。押圧具を取りはずした後、自然硬化
させ基層部と表層部とからなる二層構造の１００％スラ
グ使用の透水性コンクリートブロックを得た。表層部と
基層部の割合は次の通りである。 表層部 １６．６％ 基層部 ８３．４％ さらに当本体物性値は下記の通りであった（材令１４
日） 圧縮強度 ３９．５ Ｎ／ｍｍ２ 曲げ強度 ４．０ Ｎ／ｍｍ２ 透水係数２．０×１０−２ｃｍ／ｓｅｃ Embodiment 1 is an example in which 100% slag is used. 2,230 kg of slag with a particle size of 5 to 13 mm,
300-350 kg of cement 85 liters of water, 0.6 kg of calcium chloride, 0.5 kg of sodium silicate, 0.3 kg of hydroxyl cellulose, AK-SP0.0 surfactant
2 kg was mixed to prepare a slag mortar. This was filled in a box-shaped form and compacted with a pressing tool at a force of 15 to 20 kg / cm 2 . Next, the mold was removed, and this was used as a base portion water-permeable flat plate. The compressive strength and bending strength hydraulic conductivity on the 14th of the material age were as shown below. Compressive strength 39.2 N / mm 2 Bending strength 3.8 N / mm 2 Permeability coefficient 2.5 × 10 -2 cm / sec Next, particle size 0.6 to 1.2 m as surface layer slag mortar
m slag 450 kg cement 80 kg, water 16 liters, calcium chloride 0.2 kg, sodium silicate 0.12 k
g hydroxycellulose 0.6 kg, surfactant 0.0
8 kg was kneaded. This was placed on top of the base layer portion water-permeable flat plate at a thickness of 20 mm, and pressed with a pressing tool to 25 kg / cm.
Pressure was applied with a force of 2 . After removing the pressing tool, it was naturally cured to obtain a water-permeable concrete block using 100% slag having a two-layer structure consisting of a base layer and a surface layer. The ratio of the surface layer portion to the base layer portion is as follows. Surface layer 16.6% Base layer 83.4% The physical properties of the main body were as follows (material age 14
Day) Compressive strength 39.5 N / mm 2 Bending strength 4.0 N / mm 2 Water permeability 2.0 × 10 −2 cm / sec
【００１５】実施例２はスラグを８０％使用した場合の
例である。基層部として粒度５〜１３ｍｍのスラグ２，
１２０ｋｇ、粒度５〜１３ｍｍの骨材２７０ｋｇ、及び
粒度２．５〜０．６ｍｍの骨材２７０ｋｇ、セメント３
００〜３５０ｋｇ、水９０リツトル、塩化カルシウム
０．６ｋｇ、珪酸ソーダ０．５ｋｇ、ヒドロキシセルロ
ース０．３ｋｇ、界面活性剤ＡＫ−ＳＰ０．０２ｋｇを
混練して、スラグモルタルを調整した。これを実施例１
と同時に箱状型枠にて押圧具にて加圧して硬化させた材
令１４日の基層部透水平板の物性は下記の通りであっ
た。 圧縮強度 ４１ Ｎ／ｍｍ２ 曲げ強度 ４．３ Ｎ／ｍｍ２ 透水係数 ２．０×１０−２ｃｍ／ｓｅｃ Embodiment 2 is an example in which slag is used at 80%. Slag 2 with a particle size of 5 to 13 mm as a base layer portion
120 kg, 270 kg of aggregate having a particle size of 5 to 13 mm, and 270 kg of aggregate having a particle size of 2.5 to 0.6 mm, cement 3
A slag mortar was prepared by kneading 00 to 350 kg, 90 liters of water, 0.6 kg of calcium chloride, 0.5 kg of sodium silicate, 0.3 kg of hydroxycellulose, and 0.02 kg of surfactant AK-SP. Example 1
At the same time, the physical properties of the base layer transparent horizontal plate on the 14th day of age, which was cured by pressing with a pressing tool in a box-shaped form, were as follows. Compressive strength 41 N / mm 2 Bending strength 4.3 N / mm 2 Water permeability 2.0 × 10 −2 cm / sec
【００１６】実施例３はスラグを５０％使用した場合の
例である。基層部として粒度１３〜５ｍｍのスラグ１，
３３０ｋｇ、粒度５〜１３ｍｍの骨材１，０６０ｋｇ及
び粒度１．２〜２．５ｍｍの骨材２７０ｋｇ、セメント
３５０ｋｇ、水９０リツトル塩化カルシウム２．５ｋｇ
珪酸ソーダ１ｋｇ、ヒドロキシセルロース０．５ｋｇ、
界面活性剤ＡＫ−ＳＰ０．０２ｋｇを実施例１と同様に
混練し、箱状型枠にて押圧具にて加圧して硬化させた材
令１４日の当基層部透水性平板の物性は下記の通りであ
った。 圧縮強度 ５０．２ Ｎ／ｍｍ２ 曲げ強度 ４．４ Ｎ／ｍｍ２ 透水係数 ２×１０−２ｃｍ／ｓｅｃ 表層部スラグモルタルとしては粒度０．６〜１．２ｍｍ
のスラグ１３０ｋｇ、粒度０．６〜２の骨材１２５ｋｇ
及び粒度０．６〜１．２ｍｍの骨材１２５ｋｇ、セメン
ト９０ｋｇ、水２２リツトル、塩化カルシウム０．２ｋ
ｇ、珪酸ソーダ０．１２ｋｇ、ヒドロキシセルロース
０．１ｋｇ、界面活性剤ＡＫ−ＳＰ０．０８ｋｇを混練
りして表層部モルタルとした。これを実施例１と同様に
基層部平板の上部に加圧硬化させた割合は次の通りであ
る 表層部 ６０％ 基層部 ４０％ 材令１４日の当透水性コンクリートブロックの物性値は
次の通りであった。 圧縮強度 ５０．１ Ｎ／ｍｍ２ 曲げ強度 ４．２ Ｎ／ｍｍ２ 透水係数 ２．０×１０−２ｃｍ／ｓｅｃ Embodiment 3 is an example in which slag is used at 50%. Slag 1 with a grain size of 13 to 5 mm as the base layer
330 kg, 1,060 kg of aggregate having a particle size of 5 to 13 mm, 270 kg of aggregate having a particle size of 1.2 to 2.5 mm, 350 kg of cement, 2.5 kg of 90 liter calcium chloride water
1 kg of sodium silicate, 0.5 kg of hydroxycellulose,
0.02 kg of surfactant AK-SP was kneaded in the same manner as in Example 1, and the physical properties of the base layer water-permeable flat plate on the 14th day of material age, which was cured by pressing with a pressing tool in a box-shaped form, are as follows: It was right. Compressive strength 50.2 N / mm 2 Bending strength 4.4 N / mm 2 Permeability coefficient 2 × 10 -2 cm / sec As surface slag mortar, particle size 0.6 to 1.2 mm
130 kg of slag, 125 kg of aggregate with a particle size of 0.6-2
125 kg of aggregate having a particle size of 0.6 to 1.2 mm, cement 90 kg, water 22 liters, calcium chloride 0.2 k
g, 0.12 kg of sodium silicate, 0.1 kg of hydroxycellulose, and 0.08 kg of a surfactant AK-SP were kneaded to obtain a surface layer mortar. The ratio of pressure hardening on the upper portion of the base plate in the same manner as in Example 1 is as follows: Surface portion 60% Base portion 40% The physical property values of the permeable concrete block on the 14th day of material age are as follows. It was right. Compressive strength 50.1 N / mm 2 Bending strength 4.2 N / mm 2 Water permeability 2.0 × 10 −2 cm / sec
【００１７】本発明は廃棄物を溶融して得られるスラグ
を主原料にして安価で高い透水性と強い圧縮強度と曲げ
強度及び滑り抵抗値の大きなコンクリートブロックを得
ることができた。従来のコンクリートブロックでは土の
中に自然に浸透していた雨水の通過を妨げる結果、地下
水の急激な減少、それによる地盤沈下、土中微生物の生
態変化、樹木の発育不良、路面の排水不良、集中豪雨に
よる河川の氾濫などは大きな社会問題となって来た。当
発明品は、その解決の大きな一歩である。又、当発明品
は高い空隙率により一時的な貯水の役目をして、透水性
により高温や日照りによっても品質の劣化がなく、ブロ
ック上の細かな土砂は雨水と共に空隙を通って流され、
品質の保持につながる。さらに当発明品は高い圧縮強度
と曲げ強度及び滑り抵抗値を有するため、車などの大き
な荷重に十分耐えることができる。従って使用に際して
は歩道は勿論、運動場、車道、駐車場など交通量区分に
示されるＢ交通区分の場所まで十分に実用される産業上
有益なものである。According to the present invention, a concrete block which is inexpensive and has high water permeability, high compressive strength, high bending strength and high slip resistance can be obtained by using slag obtained by melting waste as a main raw material. Conventional concrete blocks hinder the passage of rainwater that naturally penetrates into the soil, resulting in a sharp decrease in groundwater, resulting in land subsidence, ecological changes in soil microorganisms, poor tree growth, poor drainage on the road surface, River flooding due to torrential rain has become a major social problem. The product of the present invention is a major step in solving the problem. In addition, the product of the present invention acts as a temporary water storage due to a high porosity, there is no deterioration in quality due to high temperature and sunshine due to water permeability, fine earth and sand on the block is flowed through the gap with rainwater,
Leads to quality retention. Further, since the product of the present invention has high compressive strength, bending strength and slip resistance, it can sufficiently withstand a large load such as a car. Therefore, when used, it is industrially useful enough to be practically used up to the location of the B traffic section indicated by the traffic volume section such as an athletic field, a roadway, a parking lot, as well as a sidewalk.
Claims (5)
砕した水砕スラグを１，２００〜２，４００重量部、骨
材を０〜１，６５０重量部、セメントを３００〜４５０
重量部、水を９０〜１２０重量部の混合物を型枠内で約
１５〜２０ｋｇ／ｃｍ２の圧力で加圧硬化させた透水性
コンクリートブロックの製造方法。1. A slag obtained by melting a waste material is crushed with water to obtain 1,200 to 2,400 parts by weight of granulated slag, 0 to 1,650 parts by weight of aggregate, and 300 to 450 parts of cement.
A method for producing a water-permeable concrete block, wherein a mixture of 90 to 120 parts by weight of water and 90 to 120 parts by weight of water is pressure-cured in a mold at a pressure of about 15 to 20 kg / cm 2 .
シウムが加えられていることを特徴とする請求項１記載
の透水性コンクリートブロックの製造方法。2. The method for producing a permeable concrete block according to claim 1, wherein 0 to 2.5 parts by weight of calcium chloride is added to the raw material mixture.
が加えられていることを特徴とする請求１又は２記載の
透水性ブロックの製造方法。3. The method for producing a water-permeable block according to claim 1, wherein 0 to 15 parts by weight of sodium silicate is added to the raw material mixture.
セルロースが加えられていることを特徴とする請求項
１，２又は３記載の透水性コンクリートブロックの製造
方法。4. The method for producing a permeable concrete block according to claim 1, wherein 0 to 10 parts by weight of hydroxycellulose is added to the raw material mixture.
が加えられていることを特徴とする請求項１，２，３又
は４記載の透水性コンクリートブロックの製造方法。5. The method for producing a permeable concrete block according to claim 1, wherein 0 to 10 parts by weight of a surfactant is added to the raw material mixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000345882A JP2002115204A (en) | 2000-10-06 | 2000-10-06 | Manufacturing method for permeable concrete block using molten slag of general waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000345882A JP2002115204A (en) | 2000-10-06 | 2000-10-06 | Manufacturing method for permeable concrete block using molten slag of general waste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002115204A true JP2002115204A (en) | 2002-04-19 |
Family
ID=18819839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000345882A Pending JP2002115204A (en) | 2000-10-06 | 2000-10-06 | Manufacturing method for permeable concrete block using molten slag of general waste |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002115204A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008195578A (en) * | 2007-02-14 | 2008-08-28 | Yoshinaga Kazuhisa | Binding material |
| JP2008273805A (en) * | 2007-05-07 | 2008-11-13 | Yoshinaga Kazuhisa | Permeable concrete composition |
| JP2009012077A (en) * | 2007-07-06 | 2009-01-22 | Indref Oy | Apparatus for pouring molten metal and method for manufacturing the apparatus |
| JP2012025620A (en) * | 2010-07-23 | 2012-02-09 | Keiichi Notomi | Low-water ratio cement formed body, and method for forming low-water ratio cement |
-
2000
- 2000-10-06 JP JP2000345882A patent/JP2002115204A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008195578A (en) * | 2007-02-14 | 2008-08-28 | Yoshinaga Kazuhisa | Binding material |
| JP2008273805A (en) * | 2007-05-07 | 2008-11-13 | Yoshinaga Kazuhisa | Permeable concrete composition |
| JP2009012077A (en) * | 2007-07-06 | 2009-01-22 | Indref Oy | Apparatus for pouring molten metal and method for manufacturing the apparatus |
| JP2012025620A (en) * | 2010-07-23 | 2012-02-09 | Keiichi Notomi | Low-water ratio cement formed body, and method for forming low-water ratio cement |
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