JP5173109B2 - 乾燥石膏セメント混合物及び当該混合物を用いた屋外用石膏セメントの製造方法 - Google Patents
乾燥石膏セメント混合物及び当該混合物を用いた屋外用石膏セメントの製造方法 Download PDFInfo
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- JP5173109B2 JP5173109B2 JP2003580238A JP2003580238A JP5173109B2 JP 5173109 B2 JP5173109 B2 JP 5173109B2 JP 2003580238 A JP2003580238 A JP 2003580238A JP 2003580238 A JP2003580238 A JP 2003580238A JP 5173109 B2 JP5173109 B2 JP 5173109B2
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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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/08—Acids or salts thereof
- C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
- C04B22/142—Sulfates
- C04B22/143—Calcium-sulfate
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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
- C04B28/14—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
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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
- C04B28/14—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
- C04B28/145—Calcium sulfate hemi-hydrate with a specific crystal form
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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
- C04B28/14—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
- C04B28/145—Calcium sulfate hemi-hydrate with a specific crystal form
- C04B28/147—Calcium sulfate hemi-hydrate with a specific crystal form beta-hemihydrate
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/02—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions without using driven mechanical means effecting the mixing
- B28C5/026—Mixing guns or nozzles; Injector mixers
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/10—Accelerators; Activators
- C04B2103/12—Set accelerators
-
- 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
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00146—Sprayable or pumpable mixtures
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00146—Sprayable or pumpable mixtures
- C04B2111/00155—Sprayable, i.e. concrete-like, materials able to be shaped by spraying instead of by casting, e.g. gunite
-
- 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
- C04B2111/00482—Coating or impregnation materials
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/32—Expansion-inhibited materials
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/60—Flooring materials
-
- 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
- C04B2111/80—Optical properties, e.g. transparency or reflexibility
- C04B2111/802—White cement
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Architecture (AREA)
- Crystallography & Structural Chemistry (AREA)
- Civil Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Paints Or Removers (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Description
CaSO4・2H2O →CaSO4・1/2H2O +3/2H2O
硫酸カルシウムヘミハイドレート(半水塩)は、少なくとも2種類の結晶形状を構成することが出来る。
即ち、アルファー焼き石膏は、連続的な工程或いは塊岩工程(lump rock process)によって製造され、それによって、硫酸カルシウム二水塩は圧力下に仮焼される。
Kankakee IL) である。
凝固時間の基準は、此処に参照されている、ASTM,C−472のブイアイカット(Vicat)を参照している。
当該針は、当該パイ状の層状体の表面に向けて保持されており、解放されると、それ自身の重量で自由落下する。
特定規格の屋外用石膏セメントは表1に従って用意された。
表 1
特定の屋外用石膏セメント
構成成分 量
アルファー焼き石膏 2000lbs.(908kg)
白タイプ5セメント 2000lbs.(908kg)
硫酸カリウム 10.0lbs.(4.5kg)
硫酸アルミニウム 4.5〜6.0lbs.(2.0−2.7kg)
可塑剤 19.2〜19.5lbs.(8.70−8.9kg)
消泡剤 4.0lbs.(1.8kg)
上記の基本的な規格は、下記の表2に示す様に、様々な量のポリカルボキシレートを添加することによって変成された。
ポリカルボキシレートの量の変化に伴なう水の消費量及び凝固時間
識別子 ポリカルボキシ パイ状の層状体、 凝固 水
レートの量 の直径 時間 cc/100g
A 0.0g 4-1/8"(10.5cm) 20min. 48
B 0.025g 4-1/8"(10.8cm) 18min. 38
C 0.050g 4-5/16"(11.6cm) 19min. 28
D 0.075g 4-7/16"(11.3cm) 13min. 24
E 0.10g 4-1/2"(11.4cm) 13min. 20
F 0.125g 4-1/2"(11.4cm) 13min. 19
G 0.150g 4-5/16"(11.0cm) 14.5min. 18
H 0.175g 4-1/4"(10.8cm) 17min 17
I 0.20g 4-3/16"(10.6cm) 20min. 16
J 0.225g 4-1/2"(11.4cm) 22min. 16
K 0.250g 4-1/2"(11.4cm) 23min. 15.5
当該ポリカルボキシレートの量が増加するにつれて、当該サンプルの水の消費量は減少する。当該テストサンプルの凝固時間は、当初は当該水の添加量の理論的なレベルに略近づくまで、当該ポリカルボキシレートの濃度が上昇するにつれて減少しているが、その後は、当該ポリカルボキシレートの量が増加して、当該添加剤が抑制剤として作用するにつれて増加する。
鋳造構造物の膨張は、2個のサンプルを膨張メーターで試験することによって検査した。
膨張試験
構成成分 サンプルA サンプルB
アルファー焼き石膏 2000lbs.(908kg) 2000lbs.(908kg)
タイプ5セメント 2000lbs.(908kg) 2000lbs.(908kg)
硫酸カリウム 10lbs.(4.5kg) 10lbs.(4.5kg)
硫酸アルミニウム 4.5-6.0lbs(2.0-2.7kg) 13lbs.(5.9kg)
メラミン分散剤 19.2-19.5lbs.(8.7-8.9kg) 30.75lbs.(14.0kg)
消泡剤 4.0lbs.(1.8kg) 4.0lbs.(1.8kg)
サンプルサイズ 2500g 2500g
メルフラックス1641 6.25g 0g
水 500g 625g
膨張率% 0.006% 0.047%
当該膨張率は膨張メーターでテストされた。
Claims (5)
- 屋外用石膏セメントを形成する為に、水和してスラリーを形成する為に、水と共に用いられる乾燥石膏セメント混合物であって、当該混合物は、
30乃至65重量%の水硬セメント、
30乃至65重量%の焼き石膏、及び
0.05乃至2.5重量%のポリカルボキシレートを含み、
当該ポリカルボキシレートは、オキシアルキレングリコール−アルケニルエーテルと不飽和ジカルボン酸の誘導体とに基づく共重合体ポリマーである事を特徴とする低膨張性の屋外用石膏セメントを与える乾燥石膏セメント混合物。 - 当該焼き石膏は、アルファー焼き石膏である事を特徴とする請求項1に記載の乾燥石膏セメント混合物。
- 更に少なくとも1つの凝固促進添加剤或いは凝固抑制添加剤の何れかを含んでいる事を特徴とする請求項1に記載の乾燥石膏セメント混合物。
- 30重量%乃至65重量%の焼き石膏、30重量%乃至65重量%の水硬セメント及び0.05重量%乃至2.5重量%のオキシアルキレングリコール−アルケニルエーテルと不飽和ジカルボン酸の誘導体とに基づく共重合体ポリマーであるポリカルボキシレートなどの乾燥構成成分を計量する工程と、
当該乾燥構成成分を混合して乾燥石膏セメント混合物をつくる工程と、
当該混合物の100重量部あたり40重量部以下の水を計量する工程と、
当該混合物を水に混合する工程と、
スラリーを形成する工程と、
当該スラリーを、屋外用石膏セメントを形成する為に、適切な形状を有する型に注入する工程と、
当該スラリーを硬化させる工程と、
屋外用石膏セメントを型から取り出す工程と、
を含むことを特徴とする低膨張性の屋外用石膏セメントの製造方法。 - 当該方法は、更に、当該スラリーの注入工程以前に、当該スラリーに湿潤状の凝結体を添加する工程を含んでいる事を特徴とする請求項4に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US36792002P | 2002-03-27 | 2002-03-27 | |
US60/367,920 | 2002-03-27 | ||
PCT/US2003/009397 WO2003082765A1 (en) | 2002-03-27 | 2003-03-27 | High molecular weight additives for calcined gypsum and cementitious compositions |
Publications (2)
Publication Number | Publication Date |
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JP2005521621A JP2005521621A (ja) | 2005-07-21 |
JP5173109B2 true JP5173109B2 (ja) | 2013-03-27 |
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Application Number | Title | Priority Date | Filing Date |
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JP2003580238A Expired - Fee Related JP5173109B2 (ja) | 2002-03-27 | 2003-03-27 | 乾燥石膏セメント混合物及び当該混合物を用いた屋外用石膏セメントの製造方法 |
JP2003580240A Pending JP2005521623A (ja) | 2002-03-27 | 2003-03-27 | スプレー可能で機械加工可能な媒体 |
JP2003580239A Pending JP2005521622A (ja) | 2002-03-27 | 2003-03-27 | 高強度のフローリング組成物 |
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Application Number | Title | Priority Date | Filing Date |
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JP2003580240A Pending JP2005521623A (ja) | 2002-03-27 | 2003-03-27 | スプレー可能で機械加工可能な媒体 |
JP2003580239A Pending JP2005521622A (ja) | 2002-03-27 | 2003-03-27 | 高強度のフローリング組成物 |
Country Status (10)
Country | Link |
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US (2) | US7056964B2 (ja) |
EP (3) | EP1487757B1 (ja) |
JP (3) | JP5173109B2 (ja) |
AT (2) | ATE496013T1 (ja) |
CA (3) | CA2478323C (ja) |
DE (2) | DE60335791D1 (ja) |
ES (3) | ES2333003T3 (ja) |
HK (1) | HK1072592A1 (ja) |
MX (3) | MXPA04009326A (ja) |
WO (3) | WO2003082765A1 (ja) |
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