WO2008059605A1 - Composition de mortier au ciment pour scellement et mortier de scellement obtenu à partir de celle-ci - Google Patents

Composition de mortier au ciment pour scellement et mortier de scellement obtenu à partir de celle-ci Download PDF

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Publication number
WO2008059605A1
WO2008059605A1 PCT/JP2006/323520 JP2006323520W WO2008059605A1 WO 2008059605 A1 WO2008059605 A1 WO 2008059605A1 JP 2006323520 W JP2006323520 W JP 2006323520W WO 2008059605 A1 WO2008059605 A1 WO 2008059605A1
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WO
WIPO (PCT)
Prior art keywords
cement
reducing agent
grout
cement mortar
mortar composition
Prior art date
Application number
PCT/JP2006/323520
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English (en)
Japanese (ja)
Inventor
Tooru Shiraiwa
Tetsuo Otsuka
Tooru Yagi
Original Assignee
Denki Kagaku Kogyo Kabushiki Kaisha
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Denki Kagaku Kogyo Kabushiki Kaisha filed Critical Denki Kagaku Kogyo Kabushiki Kaisha
Priority to CN200680056386A priority Critical patent/CN101535207A/zh
Priority to JP2008544066A priority patent/JP5154435B2/ja
Priority to PCT/JP2006/323520 priority patent/WO2008059605A1/fr
Publication of WO2008059605A1 publication Critical patent/WO2008059605A1/fr

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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
    • 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
    • C04B28/14—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 calcium sulfate 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
    • C04B2103/308—Slump-loss preventing agents
    • 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
    • C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
    • 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

Definitions

  • the present invention mainly relates to the composition ratio of cement mortar for grouting used in the field of civil engineering. More specifically, it has good fluidity, high strength, high durability, and low shrinkage cement mortar composition for grouting. And dalout mortar using the same. ⁇ Background technology,
  • a dart material a cement containing a water reducing agent is generally used. Further, a foaming agent such as a calcium sulfoaluminate-based or lime-based expansion material is not added. Shrinkage, mix river sand and quartz sand, etc., and paste or mortar, civil engineering / construction / construction, especially fine gaps in coke structure, voids by reverse driving method, structural repair, reinforcement, machinery Widely used for filling under the base plate and under the track floor.
  • the grout materials include PC grout, pre-packed concrete grout, tunnel backfill grout, precast grout, structural repair and reinforcement injection grout, reinforced joint dull grout, bridge
  • a grout under the bearing a grout under the machine base, a grout under the paving slab, a slab grout under the track, and a grout under the containment vessel of the nuclear power plant.
  • the cement mortar composition for grout quick type materials containing a rapid hardening material are known (see Patent Documents 1 to 4), and these cement mortar compositions for grout include rapid hardening.
  • a set adjuster (setting retarder) and a fluidizing agent (water reducing agent) are blended together with the material, and a rapid hardening material made of calcium aluminosilicate glass (calcium aluminosilicate glass) and gypsum is used as the rapid hardening material.
  • a rapid hardening material made of calcium aluminosilicate glass (calcium aluminosilicate glass) and gypsum is used as the rapid hardening material.
  • Patent Document 2 By using these grouting cement mortar compositions, it is possible to obtain dart mortar with excellent strength development and certain fluidity, but better fluidity and no bleeding or material separation. There has been a need for a cement mortar composition for dartite that can provide high strength, high durability, and low shrinkage. .
  • Patent Document 1 JP-A-200-97759
  • Patent Document 2 JP-A-2006-27937 'Patent Document 3: JP-A-2006-104013:
  • Patent Document 4 Japanese Patent No. 2861,612
  • the main components are calcium aluminosilicate glass (calcium aluminosilicate gal.), Inorganic sulfate (gypsum) 'and reactive siliceous substance (pozzolana fine powder).
  • the invention of cement admixtures is also known (see '5), and Patent Document 5 does not show the use of such cement admixtures in grout cement mortar compositions. . 'Patent Literature 5: Japanese Patent No. 297542.2
  • Patent Document 6 Japanese Unexamined Patent Application Publication No. 2005-47772 Disclosure of the invention
  • the present invention is suitable for use in machine basic grouts, etc., among the many uses mentioned above. It is an object of the present invention to provide a cement mortar composition for grout that can obtain high strength, high durability, and low shrinkage, and a grout mortar using the same. Means for solving the problem
  • a cement mortar composition for grout comprising a binder, a setting retarder, a reducing agent, a starch syrup, and a fine grain material
  • the binder comprises cement, calcium aluminosilicate glass, and A stiff hardwood made of gypsum, and pozzolanic fine powder
  • the water reducing agent contains at least a polycarboxylate-based water reducing agent
  • the fine aggregate has a density of 3.0 g / cm 3
  • the pozzolanic fine powder is a siliceous fine powder having a silicon dioxide content of 90% ′ or more and a hydrogen ion concentration in an acidic region.
  • Cement mortar composition ⁇
  • the expanding material is, 4 0 0 0 cm 2 / above, wherein the g or more calcium monkey fore luminescence over preparative system expansive grayed Rau preparative cement mortar composition of (4) with Blaine value .
  • % used in the present invention is a mass standard unless otherwise specified.
  • it contains cement, rapid hardening material, pozzolanic fine powder, setting retarder, water reducing agent, and heavy aggregate, and if necessary, expansion material, shrinkage reducing agent, fine powder cement, foaming material, thickener.
  • a dart mortar is prepared by kneading a cement mortar composition for dart and water.
  • various portland cements such as normal, early strength, low heat, and moderate heat, waste-based cement, Examples include loose cement.
  • fine powder cement can be used as a part of the cement.
  • the fine powder cement used is ordinary Portland cement powdered to a particle size of 20 microns or less and classified to a particle size of 10 microns or less.
  • the amount used is preferably 5 parts or less in 100 parts of the binder (total amount of cement, rapid hardening material, pozzolanic fine powder, and expansion material, the same shall apply hereinafter). If it exceeds 5 parts, the effect of suppressing bleeding is saturated and liquidity may be impaired.
  • the rapid-hardening material used in the present invention consists of calcium aluminosilicate glass and gypsum. -.,-'.
  • composition region C. a O 6 0 ⁇ 3 0% , A 1 2 ⁇ 3 2 0 ⁇ 6 0%, S i' Cal Information & Technology arm aluminosilicate according to the present invention ⁇ 2 5 ⁇ 2 5% is Preferably, Ca 0 55 5 to 30%, A 1 2 O 3 30 to 60%, S i O 2 10 to 25%. If C aO force is less than 30% or A 1 2 O 3 exceeds 60%, the rapid hardness is inferior.
  • quick lime C a O
  • slaked lime C a OH
  • limestone C a COO
  • S i ⁇ 2 feedstocks Kei sand, clay, and Kei diatomaceous earth, etc.
  • the particle size of calcium aluminosilicate glass is a matter of strength development.
  • the brane value is preferably 300,000 cm 2 Zg or more, more preferably SOOOOcn ⁇ Zg or more. If it is less than 3 0 0 0 cm 2 / g, there is a possibility that strength development will decrease. ',
  • gypsum examples include anhydrous gypsum, hemihydrate gypsum, and dihydrate gypsum. These types can be used alone, or two or more types can be used. Anhydrous gypsum is preferred.
  • the particle size of the gypsum from the viewpoint of strength development, in plain value, preferably ⁇ 3 0 0.0 cm 2 / g or more, 5 0 0 0 cm 2 / g or more and more favorable. 'Preferable. If it is less than 300,000 cm 2 / g, strength development may be reduced. '
  • the amount of gypsum used is preferably 50 to L 50 parts per 100 parts of calcium aluminosilicate glass. If it is less than 5 0 .. part and more than 1 50 part, strength development may be reduced. ''.
  • the amount of the rapid hardening material is preferably 9 to 25 parts in 100 parts of the binder. If it is less than 9 parts, strength development may be reduced, and if it exceeds 25 parts, the effect is saturated. ''... '+
  • the pozzolanic fine powder used in the present invention is used particularly for good fluidity and strength at a low water ratio, and has a silicon dioxide (S i O 2) content of 90%. A siliceous fine powder having a hydrogen ion concentration in the acidic region is preferred.
  • the method for producing siliceous fine powder is, for example, by adjusting the heat treatment conditions of the raw material in a method of oxidizing metal silicon fine powder in a flame or in a method of melting a fine powder of siliceous raw material in a high temperature flame. It can be manufactured by setting the temperature to 550 ° C or higher. In addition, some are manufactured after being collected by a cyclizer when the zircon sand is melted in an electric furnace.
  • the amount of pozzolanic fine powder used is preferably 5 to 15 parts in 100 parts of the binder. If it is less than 5 parts, the strength development is insufficient, the ball bearing effect is lost and the load during kneading increases, and excellent fluidity may not be obtained with a predetermined amount of water. 1 If it exceeds 5 parts, the fluidity effect is saturated and the strength development may be reduced.
  • the expansion material used in the present invention is not particularly limited, and commercially available materials can be used. Calcium sulfoaluminate-based expansion material, calcium aluminoferrite-based expansion material, and lime-based expansion material Any material can be used. '
  • the amount of the expanded material used is preferably 1 to 5 parts in 100 parts of the binder. If it is less than 1 part, the shrinkage reduction effect may be small, and if it exceeds 5 parts, the shrinkage reduction effect may not be expected, and the compression strength may be reduced.
  • the setting retarder used in the present invention adjusts the setting and hardening of the rapid-hardening mortar and contains organic acids and alkali metal carbonates. One or more of these can be used.
  • the organic acids include oxycarboxylic acids such as citrate (anhydrous), tartaric acid and darconic acid, or alkali metal salts such as salts thereof.
  • the amount of the organic acid used is preferably 0.1 to 0.3 parts with respect to 100 parts of the binder. If it is less than 0.1 part, the control of the hardening time may not be effective, and if it exceeds 0.3 part, the strength expression may be lowered. ⁇ ',
  • alkali metal carbonate examples include carbonates such as lithium carbonate, sodium carbonate, and potassium carbonate, and bicarbonates such as sodium hydrogen carbonate and potassium hydrogen carbonate.
  • the amount of alkali metal carbonate used is preferably 0.3 to 0.8 parts relative to 100 parts of the binder. If it is less than 0.3 part, the effect of promoting the strength development after curing may not be expected, and if it exceeds 0.8 part, the initial strength development may be lowered.
  • the shrinkage reducing agent used in the present invention suppresses dry shrinkage of the cured mortar and suppresses the occurrence of cracks.
  • the constituent shrinkage reducing component is RO (AO) n H (however, R Is an alkyl group having 4 to 6 carbon atoms, A is one or more alkylene groups having 2 to 3 carbon atoms, and n is an integer of 1 to 10). Or the general formula X ⁇ 0 (AO) n R ⁇ m (where X is a residue of a compound having 2 to 8 hydrogen groups, and AO is a carbon atom having 2 to 18 carbon atoms) A xoxyalkylene group, R is a hydrogen atom, a hydrocarbon group having 1 to 18 carbon atoms, or an acyl group having 2 to 18 carbon atoms, n is 30 to 1,000, and m is 2 to 8).
  • the amount of shrinkage reducing agent used is preferably 1.3 to 3.8 parts per 100 parts of binder. 1. If it is less than 3 parts, the effect of reducing drying shrinkage may be small, and if it exceeds 3.8 parts, strength development may be reduced.
  • the water reducing agent has a dispersing action on the cement and an air-entraining action to improve fluidity and enhance strength. Specifically, condensates of melamine sulfonate, polycarboxylates, In the present invention, at least a polycarboxylate-based water reducing agent is used in order to obtain a predetermined fluidity.
  • These water reducing agents are all used in powder form :: Toga ', and can be used in combination with polycarbonate-based water reducing agents and other water reducing agents.
  • the amount of the polycarboxylate-based water reducing agent used is preferably 0'.1 3 to 0.3 part with respect to 100 parts of the binder, and if less than 0.13 part, the predetermined fluidity can be obtained. In some cases, if it exceeds 0.3 parts, material separation and compressive strength may be reduced. When a melamine sulfonate-based water reducing agent is used in combination, 0.13 to 0.'4 parts are preferable, and about 0.25 part is more preferable.
  • the foaming material used in the present invention is not particularly limited, but is a substance that generates gas after being kneaded with water in order to obtain the initial expansibility of dalat mortar. It is used for the purpose of preventing the problem and integrating with the structure.
  • metal powders and peroxide materials include metal powders and peroxide materials.
  • aluminum powder is preferred, but the surface of aluminum powder is easily oxidized and its reactivity decreases when covered with an oxide film, so aluminum powder surface-treated with vegetable oil, mineral oil, stearic acid or the like is used. preferable.
  • the amount of the foaming material used is preferably 0.00 1 3 to 0.00 4 parts relative to 100 parts of the binder, and if less than 0.00 1 3 parts, the amount of expansion is extremely small. If it exceeds 0.04 parts, the amount of expansion may be large and the strength may decrease.
  • the thickener used in the present invention is for adjusting the viscosity of the mortar, and is not particularly limited, and commercially available ones can be used, such as methinorecellulose, canoleboxymethinore. Examples include Senole mouthpiece, polyvinyl alcohol, polyacrylic acid and its sodium and calcium salts, and polyethylene oxide. -The amount of thickener used is preferably 0.00 1 to 0.00 4 parts per 1 part of binder. If less than 0.00 1 part, bleeding is sufficiently prevented. May not be possible, and if it exceeds 0.04, the fluidity may decrease. 'As a fine aggregate used in the present invention, a heavy aggregate having a density of 3.0 gZ cm 3 or more, such as a cloth mouth slag, is used. The maximum particle size is preferably 5. Omni or less. '.
  • the amount of fine aggregate used is preferably 100 to 200 parts with respect to 100 parts of the binder. If it is less than 100 parts, the amount of shrinkage may increase, and if it exceeds 200 parts, the strength and fluidity may decrease.
  • defoaming agents, clay minerals such as bentonite, and key-on exchangers such as hydrotalitite, etc. do not substantially impair the object of the present invention.
  • a dart mortar is prepared by kneading a cement mortar composition for dart blended with the above materials and water.
  • the amount of kneading water to be used is not particularly limited, but the binder 1 0 0 3 1-3 parts are preferred relative to parts. Outside this range, there may be a decrease in fluidity or material separation, and there may be a decrease in strength development. D
  • the mixing method of each material is not particularly limited. These materials may be mixed at the time of construction, or some or all of them may be mixed in advance. .
  • any existing device can be used, for example, a tilting mixer, an Omni mixer, a Henschel mixer, a V-type mixer, a Nauta mixer, and the like can be used.
  • Example 1 The present invention will be described more specifically with reference to the following examples, but the present invention is not limited to these examples. , Example 1
  • Pozzolana fine powder Zirconia origin silica fume (commercially available)
  • Expansion material calcium sulfoaluminate Fine powder cement: Ordinary Portland sedan crushed and classified.
  • Shrinkage reducing agent Polyalkylene glycol shrinkage reducing agent, commercial product '' Water reducing agent: Meramine sulfone salt water reducing agent, commercial product
  • Foaming material metal aluminum powder, commercial product ',.
  • Thickener 'Methylcellulose thickener, commercial product'
  • Fine Aggregate Mouth Chrome Slag, Density 3.20g / cm 3 , 4mm Below> Method of Fluidity: JSCE-F541-1999 “The Flowability of Filling Mortar” J 14 funnel flow-down value according to "Test method” ⁇ ⁇ ⁇ Bridging rate: JSCE Standard Specification (JSCE-F542-1999) "Filling rate of filling mortar and testing method for expanded umbrella” Measure the pre-bonding ratio, ''..
  • volume expansion coefficient In accordance with Japan Society of Civil Engineers Standard Specification (JISA-6202-1'197) “Breeding rate and expansion rate test method for filled mortar”, Grain mortar at 20 ° C, 80% HH In a constant temperature and humidity chamber, measured in 1 day after placement.
  • Compressive strength In accordance with the Japan Society of Civil Engineers Standard Specification (JSCE-G541-1999) “Test method for compressive strength of filling mortar” was placed in a mold in a constant temperature and humidity chamber at 20 ° C and 80% RH, and the 6-hour strength (Table 1) or the curing after 1 day was treated as 20 ° C underwater curing. Measure compressive strength table 1
  • a grout mortar was prepared and measured in the same manner as in Example 1 except that 100 parts of the binder, 18 parts of the rapid hardening material, and pozzolanic fine powder shown in Table 2 were added. The results are also shown in Table 2. '
  • Example 3 In the same manner as in Example 1, except that 10 parts of the hardened material is contained in 10 parts of the binder, and the setting retarder shown in Table 3 is added to 100 parts of the binder. A uto mortar was prepared and measured. The results are also shown in Table 3.
  • Example 5 ...-Bonding and compounding material 10 parts in 10 parts of quick-hardening material ⁇ , and 10 parts of binding material 10 parts in Q.
  • Polycarboxylate water reducing agent (part), one is not measurable
  • Bonding material In the same manner as in Example 1, except that 10 parts of quick-hardening material is contained in 100 parts, and the foaming material shown in Table 6 is added to 100 parts of bonding material. Fabricated and measured. The results are also shown in Table 6. +
  • Example 9 In the same manner as in Example 1 except that 8 parts of quick-hardening material was contained in 100 parts of binding material, and water shown in Table 9 was added to 100 parts of binding material. Fabricated and measured. The results are also shown in Table 9.
  • Abrasion resistance test Taber abrasion test (weight reduction method)
  • the grout mortanol of the example containing heavy aggregate has good fluidity, high compressive strength, and excellent impact resistance and wear resistance.
  • the comparative grotal containing lime sand which is not heavy aggregate, has low compressive strength, and is inferior in impact resistance and wear resistance (Experiment No'.10-1).
  • the grout mortar of the present invention is superior in properties to a commercial product (Experiment No. 10-2) containing heavy aggregate.
  • Cement mortar using the cement cement mortar composition of the present invention has good fluidity, high strength, high durability, and low shrinkage as described above. Can be used for structures.

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  • 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)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

La présente invention a trait à une composition de mortier au ciment pour scellement conservant une fluidité satisfaisante, non sujette au ressuage ni à une décomposition en ses matériaux constitutifs, peu sujette au fendillement du fait de sa grande résistance, présentant une grande durabilité et un retrait à sec réduit, et utilisable dans des applications telles que les assises pour machines ; et à un mortier de scellement obtenu à partir de ladite composition. La composition de mortier au ciment pour scellement comprend un liant, un retardateur de prise, un réducteur d'eau et un agrégat fin. Elle est caractérisée en ce que le liant comprend un matériau à prise rapide comprenant un ciment, un verre d'aluminosilicate de calcium, du plâtre et une fine poudre de pouzzolane, en ce que le réducteur d'eau comprend au moins un réducteur d'eau de type polycarboxylate et en ce que l'agrégat fin est un agrégat lourd d'une densité supérieure ou égale à 3,0 g/cm3. Le mortier de scellement est obtenu par malaxage de la composition de mortier au ciment avec de l'eau.
PCT/JP2006/323520 2006-11-17 2006-11-17 Composition de mortier au ciment pour scellement et mortier de scellement obtenu à partir de celle-ci WO2008059605A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN200680056386A CN101535207A (zh) 2006-11-17 2006-11-17 灌浆用水泥灰浆组合物及使用其的注浆
JP2008544066A JP5154435B2 (ja) 2006-11-17 2006-11-17 グラウト用セメントモルタル組成物及びそれを用いたグラウトモルタル
PCT/JP2006/323520 WO2008059605A1 (fr) 2006-11-17 2006-11-17 Composition de mortier au ciment pour scellement et mortier de scellement obtenu à partir de celle-ci

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PCT/JP2006/323520 WO2008059605A1 (fr) 2006-11-17 2006-11-17 Composition de mortier au ciment pour scellement et mortier de scellement obtenu à partir de celle-ci

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CN110128088A (zh) * 2019-05-21 2019-08-16 武汉沃尔浦科技有限公司 一种高流动度钢筋连接用套筒灌浆材料
WO2020058887A1 (fr) * 2018-09-21 2020-03-26 Denka Company Limited Matériau semi-rigide de remplissage de chaussée et revêtement d'asphalte semi-rigide
JP2020055748A (ja) * 2016-03-17 2020-04-09 太平洋マテリアル株式会社 速硬性グラウト組成物
WO2022070682A1 (fr) * 2020-09-30 2022-04-07 デンカ株式会社 Matériau de coulis, mortier de coulis et corps durci
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