JP2022551516A - 最適なpHを有する硬化複合材料の形成方法、及びそれに関連する組成とシステム - Google Patents
最適なpHを有する硬化複合材料の形成方法、及びそれに関連する組成とシステム Download PDFInfo
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- JP2022551516A JP2022551516A JP2022521510A JP2022521510A JP2022551516A JP 2022551516 A JP2022551516 A JP 2022551516A JP 2022521510 A JP2022521510 A JP 2022521510A JP 2022521510 A JP2022521510 A JP 2022521510A JP 2022551516 A JP2022551516 A JP 2022551516A
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- water
- aggregate
- calcium silicate
- cementitious material
- curing
- Prior art date
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
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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
- C04B28/08—Slag cements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/02—Conditioning the material prior to shaping
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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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
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- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
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- 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
- C04B28/18—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 mixtures of the silica-lime type
- C04B28/186—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 mixtures of the silica-lime type containing formed Ca-silicates before the final hardening step
- C04B28/188—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 mixtures of the silica-lime type containing formed Ca-silicates before the final hardening step the Ca-silicates being present in the starting mixture
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- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
- C04B38/103—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam the foaming being obtained by the introduction of a gas other than untreated air, e.g. nitrogen
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- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
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- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/02—Selection of the hardening environment
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- C04B2111/26—Corrosion of reinforcement resistance
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Abstract
Description
複数の細孔に少なくとも一部の水を含んだ状態の湿潤性混合物成形品を得て、その水により、低ケイ酸カルシウム且つ又は粒状充填材から少なくとも一部の成分を溶出して、pHが11.5以上孔隙溶液を該湿潤性混合物成形品内に生成し、また、任意選択で該湿潤性混合物成形品を予め予備養生して、型から取り外すために十分な硬度を該湿潤性混合物成形品に持たせたうえで、該湿潤性混合物成形品又は該予備養生済み湿潤性混合物成形品を型から外し、該湿潤性混合物成形品の前処理を行って、該湿潤性混合物成形品から少なくとも一部の水を除去して、孔隙溶液を含む細孔を有する多孔質体を、CO2ガス濃度約15%~約100%の雰囲気において大気圧程度~約30psiの圧力、約30℃~約90℃の温度、約10%~約90%の相対湿度の条件下で約8時間から約28日間養生することにより、適正化孔隙溶液を含む低ケイ酸カルシウムセメント系炭酸化材料を形成する方法がある。養生後の低ケイ酸カルシウムセメント系炭酸化複合材料中の適正化孔隙溶液のpHは、少なくとも約9.5~11.5、又はそれ以上である。該適正化孔隙溶液のpHは、かかる上限と下限、及びその間に含まれるすべての整数値と分数を含むものとする。該適正化孔隙溶液のpHは、少なくとも10.0、又は少なくとも10.5、少なくとも11.0、若しくは少なくとも約11.5であり得る。該孔隙溶液のpHによっては、該適正化後の孔隙溶液のpHが約11.5を超えることもある。低ケイ酸カルシウムセメント系炭酸化材料の圧縮強度は、例えば、3,000psi以上、約4,000psi超、約5,000psi超、約6,000psi超、約7,000psi超、約8,000psi超、約9,000psi超、又は約10,000psi以上であり得る。圧縮強度は、約3,000psi~約10,000psiであるが、かかる上限と下限、及びその間に含まれるすべての整数値と分数を含むものとする。
炭酸化可能低ケイ酸カルシウムセメントのプレキャスト部材
pH安定性を向上できる炭酸化可能ケイ酸カルシウム系複合組成物
CaSiO3(s)+CO2(g) → CaCO3(s)+SiO2(s) (1)
Ca3Si2O7(s)+3CO2(g) → 3CaCO3(s)+2SiO2(s) (2)
Ca2SiO4 (s)+2CO2(g) → 2CaCO3(s)+SiO2(s) (3)
米国特許第8,114,367号
米国公開特許公報第2009/0143211号(特願第12/271,566号)
米国公開特許公報第2011/0104469号(特願第12/984,299号)
米国公開特許公報第2009/0142578号(特願第12/271,513号)
米国公開特許公報第2013/0122267号(特願第13/411,218号)
米国公開特許公報第2012/0312194号(特願第13/491,098号)
国際公開第2009/102360号 (PCT/US2008/083606)
国際公開第2011/053598号 (PCT/US2010/054146)
国際公開第2011/090967号 (PCT/US2011/021623)
米国仮特許出願第61/708,423号(出願日:2012年10月1日)
米国公開特許公報第2014/0127450号(特願第14/045,758号)
米国公開特許公報第2015/0266778号(特願第14/045,519号)
米国公開特許公報第2014/0127458号(特願第14/045,766号)
米国公開特許公報第2014/0342124号(特願第14/045,540号)
米国公開特許公報第2014/0272216号(特願第14/207,413号)
米国公開特許公報第2014/0263683号(特願第14/207,421号)
米国特許公報第2014/0314990号(特願第14/207,920号)
米国特許第9,221,027号(特願第14/209,238号)
米国公開特許公報第2014/0363665号(特願第14/295,601号)
米国公開特許公報第2014/0361471号(特願第14/295,402号)
米国公開特許公報第2016/0355439号(特願第14/506,079号)
米国公開特許公報第2015/0225295号(特願第14/602,313号)
米国公開特許公報第2015/0056437号(特願第14/463,901号)
米国公開特許公報第2016/0168720号(特願第14/584,249号)
米国公開特許公報第2015/0336852号(特願第14/818,629号)
米国公開特許公報第2016/0031757号(特願第14/817,193号)
米国公開特許公報第2016/0272544号(特願第15/074,659号)
米国公開特許公報第2016/0096773号(特願第14/874,350号)
米国公開特許公報第2016/0340261号(特願第14/715,497号)
米国公開特許公報第2016/0272545号(特願第15/074,692号)
米国公開特許公報第2017/0102373号(特願第15/290,328号)
米国公開特許公報第2017/0121223号(特願第15/335,520号)
米国公開特許公報第2017/0204010号(特願第15/409,352号)
米国公開特許公報第2017/0253530号(特願第15/449,736号)
米国公開特許公報第2017/0260096号(特願第15/451,344号)
米国公開特許公報第2017/0320781号(特願第15/587,705号)
米国公開特許公報第2017/0341989号(特願第15/609,908号)
米国特許出願番号第15/716,392号(出願日:2017年9月26日)
米国特許出願番号第15/831,135号(出願日:2017年12月4日)
上記の各々は、あらゆる目的のためにその全体が参照により本出願に明示的に援用される。
結着成分
CO 2 制御
湿度制御
温度制御
ガス流の制御
a.混合器に砂の全量を入れ、30秒間混ぜる。
b.混合器を作動させたまま、混合する水の10%を混合器に注ぐ。
c.粗骨材の50%を混合器に投入する。
e.セメント質材料の全量を混合器に投入する。
f.粗骨材の残り50%を混合器に投入する。
g.混合する水の50%を混合器に投入し、続いて減水剤を加え、30秒間混合して、部分的に湿った状態のコンクリート配合体を生成する。
h.該部分的に湿った状態のコンクリート配合体に凝結遅延剤を加えて、混合器を30秒間作動させる。
i.コンクリート配合体の目視観察しながら、残りの水を、湿った状態の配合体に加える。
既に水分が多すぎると思われる場合は、残りの水を加えない。
j.該湿潤性コンクリート配合体を混合器で3分間混ぜる。
k.該湿潤性コンクリート配合体を混合器内で1分間放置する。
l.該湿潤性コンクリート配合体を更に1分間混ぜる。
表2:配合体1
表4
表5
Claims (25)
- 炭酸化複合材料の製造方法において、粒子状の炭酸化可能なセメント系材料を得ることと、該炭酸化可能なセメント系材料と水を混合して配合体を生成することと、該配合体を使って、第1のpHを有する初期孔隙溶液を含む初期細孔構造を所定の形状に成形することと、該所定形状から所定量の水を取り除く前処理を行い、前処理済み形状にすることと、前処理済み形状を、二酸化炭素を含む環境で炭酸化することで、第2のpHを有する適正化孔隙溶液を含む適正化細孔構造を生成することとを含み、第1のpHと第2のpHの差をΔpHとして示し、該ΔpHが1.0以下であることを特徴とする炭酸化複合材料の製造方法。
- 第1のpHが11.5以上であることを特徴とする請求項1に記載の方法。
- 第2のpHが少なくとも約9.5~約11.5、又はそれ以上であることを特徴とする請求項1に記載の方法。
- 前処理済み形状の炭酸化により一つ又は複数の結着成分が形成され、各結着成分は、一つ又は複数の化学成分を含む第1の化学組成を有するコアと、該コアの辺縁部を少なくとも部分的に覆った状態で設けられるシリカを多く含む第1の層と、該第1層の辺縁部を少なくとも部分的に覆った状態で設けられる炭酸カルシウム且つ又は炭酸マグネシウムを多く含む第2の層とからなることを特徴とする請求項1に記載の方法。
- 前処理中に所定の形状から除去される水の所定量が20~70%であることを特徴とする請求項1に記載の方法。
- 前処理中に所定の形状から除去される水の所定量が40~50%であることを特徴とする請求項5に記載の方法。
- 該前処理の少なくとも一部が大気を含む環境で実施されることを特徴とする請求項1に記載の方法。
- 該前処理の少なくとも一部が二酸化炭素を含む環境で行われることを特徴とする請求項1に記載の方法。
- 二酸化炭素の濃度が0%~50%又はそれ以上であることを特徴とする請求項8に記載の方法。
- 前処理済み形状の炭酸化中の二酸化炭素濃度が10%~100%であることを特徴とする請求項1に記載の方法。
- 前処理済み形状の炭酸化中の二酸化炭素濃度が50%~99%であることを特徴とする請求項7に記載の方法。
- 該配合体を型に注ぐことにより所定の形状を形成することと、該配合体を型に入れたまま、少なくとも型を取り外すのに十分な硬度まで予め養生しておくこととを更に含むことを特徴とする請求項1に記載の方法。
- 該配合体に骨材が含まれることを特徴とする請求項1に記載の方法。
- 該骨材の粒径が0.25mm~約25mmの範囲であることを特徴とする請求項13に記載の方法。
- 該骨材が砂を含むことを特徴とする請求項13に記載の方法。
- 該骨材が砂利やトラップ岩又は花崗岩を含むことを特徴とする請求項13に記載の方法。
- 該砂がドロマイト質であることを特徴とする請求項15に記載の方法。
- 該砂がシリカを主成分とすることを特徴とする請求項15に記載の方法。
- 該配合体が、添加剤として更に少なくとも一種のpH向上剤を、セメント系材料の総量に対して約1質量%~約30質量%の用量で含むことを特徴とする請求項1に記載の方法。
- 該添加剤としての少なくとも一種のpH向上剤が、硝酸カルシウム四水和物、亜硝酸カルシウム、NaOH、重炭酸ナトリウム、普通ポルトランドセメント、ケイ酸ナトリウム、デッドバミングされたCaO、高温焼成MgO、コンクリート再生材(CRM)、スラグ骨材、及びそれらの組合せから選択されることを特徴とする請求項1に記載の方法。
- 固形成分と液体成分を含むケイ酸カルシウム組成物において、該固形成分が、該固形成分の総重量に対して8~25重量%のセメント系材料を含み、該固形成分の残りの成分が骨材であり、該液体成分が、該セメント系材料1kg当たり20~50mlのpH増強剤と、該セメント系材料1kg当たり200~700mlの水を含むことを特徴とするケイ酸カルシウム組成物。
- 該骨材が比較的大きな第1の骨材と比較的小さい第2の骨材を含むことを特徴とする請求項21に記載のケイ酸カルシウム組成物。
- 該セメント系材料が、該セメント系材料の総重量に対して少なくとも50重量%以上のケイ酸カルシウム化合物、及び普通ポルトランドセメントを含むことを特徴とする請求項21に記載のケイ酸カルシウム組成物。
- 該セメント系材料がガラス質アルミノケイ酸カルシウムを更に含むことを特徴とする請求項23に記載のケイ酸カルシウム組成物。
- 該液体成分が減水剤と空気連行剤と凝結遅延剤のうちの一つ又は複数を更に含むことを特徴とする請求項23に記載のケイ酸カルシウム組成物。
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PCT/US2020/054973 WO2021072184A1 (en) | 2019-10-09 | 2020-10-09 | Methods of forming cured composite materials with optimized ph and related compositions and systems |
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JP2022529415A (ja) | 2019-04-12 | 2022-06-22 | カービクリート インコーポレイテッド | 湿式鋳造スラグ系コンクリート製品を製造するための炭酸化養生方法 |
US11358304B2 (en) | 2019-12-10 | 2022-06-14 | Carbicrete Inc | Systems and methods for curing a precast concrete product |
US11597685B2 (en) | 2020-06-03 | 2023-03-07 | Carbicrete Inc | Method for making carbonated precast concrete products with enhanced durability |
NO347731B1 (en) * | 2022-04-09 | 2024-03-11 | Restone As | Method for producing an acid-activated cement slurry, acid-activated mixture in the form of a cement slurry, use of the acid-activated mixture, method of making an acidactivated structure, and an acid-activated structure |
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US7658940B2 (en) * | 2007-03-30 | 2010-02-09 | Skeletal Kinetics, Llc | Calcium phosphate cements comprising autologous bone |
US20160168720A1 (en) * | 2013-12-30 | 2016-06-16 | Solidia Technologies, Inc. | Anticorrosive coatings, processes and uses thereof |
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US20180194693A1 (en) * | 2014-01-22 | 2018-07-12 | Solidia Technologies, Inc. | Advanced curing equipment and methods of using same |
US20180273430A1 (en) * | 2017-03-23 | 2018-09-27 | Solidia Technologies, Inc. | Carbonatable calcium silicate-based cements and concretes having mineral additives, and methods thereof |
US20190256415A1 (en) * | 2018-02-22 | 2019-08-22 | Solidia Technologies Inc. | Mitigation of corrosion in carbonated concrete based on low-calcium silicate cement |
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US11618714B2 (en) | 2023-04-04 |
EP4041254A1 (en) | 2022-08-17 |
WO2021072184A1 (en) | 2021-04-15 |
MX2022004336A (es) | 2022-04-26 |
CN114929247A (zh) | 2022-08-19 |
CA3152865A1 (en) | 2021-04-15 |
BR112022006827A2 (pt) | 2022-07-05 |
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