JP2000281467A - Curing of concrete - Google Patents
Curing of concreteInfo
- Publication number
- JP2000281467A JP2000281467A JP9400099A JP9400099A JP2000281467A JP 2000281467 A JP2000281467 A JP 2000281467A JP 9400099 A JP9400099 A JP 9400099A JP 9400099 A JP9400099 A JP 9400099A JP 2000281467 A JP2000281467 A JP 2000281467A
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- curing
- wet
- relative humidity
- cement
- 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
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
- 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
- C04B40/0231—Carbon dioxide hardening
- C04B40/0236—Carbon dioxide post-treatment of already hardened material
-
- 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
- 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
- C04B40/0277—Hardening promoted by using additional water, e.g. by spraying water on the green concrete element
- C04B40/0281—Hardening in an atmosphere of increased relative humidity
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、コンクリートの養
生方法に関し、特に耐久性に優れるコンクリートを製造
できるコンクリートの養生方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for curing concrete, and more particularly to a method for curing concrete capable of producing concrete having excellent durability.
【０００２】[0002]
【従来の技術】コンクリートは、従来より、土木・建設
分野において広く使用されている材料であるが、使用す
る用途や場所（例えば、港湾、海岸、海洋等に構築され
て海水の作用を受ける構造物に使用される海洋コンクリ
ート）によっては、特に耐久性に優れることが求められ
るものである。2. Description of the Related Art Conventionally, concrete is a material widely used in the field of civil engineering and construction. However, concrete and its use (for example, a structure constructed in a harbor, seashore, ocean, etc. and subjected to the action of seawater) Depending on the marine concrete used for the object, it is particularly required to have excellent durability.
【０００３】従来より、耐久性に優れるコンクリートを
製造する方法は種々提案されている。例えば、特開平7-
266321号公報には、型枠に、鉄材と、砂利又は砕石との
混合物を入れ、この混合物を圧搾し、ついで圧搾後に存
在する隙間に型枠の下方からモルタルを圧入し、得られ
たコンクリート部材を硬化した後、気中養生するコンク
リートの養生方法が開示されている。Hitherto, various methods for producing concrete having excellent durability have been proposed. For example, JP-A-7-
No. 266321 discloses that a mixture of an iron material and gravel or crushed stone is placed in a mold, the mixture is squeezed, and mortar is pressed into a gap existing after the squeezing from below the mold to obtain a concrete member. A method for curing concrete that cures in the air after curing is disclosed.
【０００４】[0004]
【発明が解決しようとする課題】上記特開平7-266321号
公報に開示される製造方法で製造されるコンクリートで
は、耐久性、特に中性化、塩分浸透性及び急速凍結融解
性に優れることが記載されている。しかしながら、上記
特開平7-266321号公報では、鉄材と、砂利又は砕石との
混合物を一旦圧搾し、その後モルタルを圧入してコンク
リートとするものであり、いわゆるコンクリート混練物
を使用することはできず手間がかかっていた。また、大
型の製品や構造物を製造する際に、鉄材と、砂利又は砕
石との混合物を圧搾することは困難であり、大型の製品
や構造物の製造には適用し難いものであった。The concrete manufactured by the manufacturing method disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 7-266321 is excellent in durability, especially in neutralization, salt permeability and rapid freeze-thaw. Has been described. However, in the above-mentioned JP-A-7-266321, iron and a mixture of gravel or crushed stone are once squeezed, and then mortar is pressed into concrete, so-called concrete kneaded material cannot be used. It was troublesome. Moreover, when manufacturing a large product or structure, it is difficult to squeeze a mixture of an iron material and gravel or crushed stone, and it is difficult to apply the method to manufacturing a large product or structure.
【０００５】そのため、耐久性に優れるコンクリートの
製造において、容易で、かつ大型のコンクリート製品や
コンクリート構造物を製造する際にも適用することがで
きるような方法が求められていた。[0005] Therefore, there has been a demand for a method that can be easily applied to the production of concrete having excellent durability and can be applied to the production of large-sized concrete products and concrete structures.
【０００６】[0006]
【課題を解決するための手段】本発明者等は、上記課題
を解決するために、特にコンクリートの養生条件（養生
雰囲気、期間等）に着目して鋭意研究した結果、特定の
養生方法を行うことによって、コンクリートの耐久性を
格段に向上させることができることを見いだし本願発明
を完成させた。Means for Solving the Problems In order to solve the above-mentioned problems, the present inventors have conducted intensive research, especially focusing on the curing conditions (curing atmosphere, period, etc.) of concrete, and as a result, have carried out a specific curing method. As a result, it has been found that the durability of concrete can be significantly improved, and the present invention has been completed.
【０００７】即ち、本発明は、コンクリート混練物を型
枠内で養生し、脱型した後、さらに相対湿度95〜100％
の条件下で１週間以上湿空養生することを特徴とするコ
ンクリートの養生方法（請求硬１）である。また、本発
明は、コンクリート混練物を型枠内で養生し、脱型した
後、さらに相対湿度95〜100％、かつ炭酸ガス濃度0.05
〜5％の条件下で湿空養生することを特徴とするコンク
リートの養生方法（請求項２）である。That is, according to the present invention, after the concrete kneaded material is cured in a mold and demolded, the relative humidity is further increased to 95 to 100%.
Curing method for concrete for one week or more under the condition (1). In addition, the present invention provides a method of curing a concrete kneaded material in a mold, removing the mold, and further increasing the relative humidity to 95 to 100% and the carbon dioxide gas concentration to 0.05.
A method for curing concrete, characterized in that curing is performed under wet and dry conditions under conditions of up to 5% (claim 2).
【０００８】[0008]
【発明の実施の形態】以下本発明を詳細に説明する。本
発明では、まず従来と同様にコンクリート混練物を型枠
内で養生し脱型する。この工程は、従来のコンクリート
工事等で行われているのと同様であり、コンクリートの
混練や型枠への打設は慣用の装置等で行えば良い。ま
た、型枠等も従来のものを使用することができる。脱型
の時期も従来と同様に行えば良く、例えば、柱、壁、は
りの側面等においては、コンクリートの圧縮強度が5.0N
/mm2に達した段階で脱型すればよい。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail. In the present invention, the concrete kneaded material is first cured in a mold frame and demolded as in the prior art. This step is the same as that performed in the conventional concrete construction and the like, and the kneading of the concrete and the casting into the formwork may be performed by a conventional device or the like. In addition, conventional molds and the like can be used. The demolding time may be performed in the same manner as in the past.For example, on columns, walls, side surfaces of beams, etc., the compressive strength of concrete is 5.0N.
It is sufficient to remove the mold when it reaches / mm 2 .
【０００９】脱型後、相対湿度95〜100％の条件下で１
週間以上湿空養生することに本発明の特徴がある。該条
件下で養生することにより、コンクリート表面に緻密な
炭酸カルシウム層を形成させることができ、耐久性に優
れるコンクリートとすることができる。湿空養生期間
は、コンクリートの用途や使用場所に応じて適宜設定す
れば良いが、10週間以上湿空養生を行ってもコンクリー
トの耐久性はそれ程向上しないので、湿空養生期間は、
１〜10週間が好ましい。湿空養生時の相対湿度が95％未
満であったり、養生期間が１週間未満では、コンクリー
トの耐久性の向上効果が小さく好ましくない。[0009] After demolding, 1% under the condition of 95-100% relative humidity.
It is a feature of the present invention that the wet curing is performed for more than a week. By curing under such conditions, a dense calcium carbonate layer can be formed on the concrete surface, and a concrete with excellent durability can be obtained. The moist air curing period may be set as appropriate according to the application and place of use of the concrete.However, even if the moist air curing is performed for 10 weeks or more, the durability of the concrete does not improve so much.
1 to 10 weeks are preferred. If the relative humidity at the time of humid curing is less than 95% or the curing period is less than 1 week, the effect of improving the durability of concrete is small, which is not preferable.
【００１０】本発明においては、相対湿度が95〜100％
の条件で湿空養生できれば、その方法は限定するもので
はなく、例えば、相対湿度が95〜100％に設定・管理さ
れた養生室や養生箱等において養生しても良く、また、
コンクリートの表面を、濡れむしろや濡布や湿砂等で覆
って養生しても良い。[0010] In the present invention, the relative humidity is 95-100%
The method is not limited as long as it can be moist and air cured under the conditions of, for example, curing may be performed in a curing room or a curing box or the like in which the relative humidity is set and controlled to 95 to 100%,
The surface of the concrete may be covered with wet cloth, wet sand or the like, and cured.
【００１１】また、本発明は、コンクリート混練物を型
枠内で養生し、脱型した後、さらに相対湿度95〜100
％、かつ炭酸ガス濃度0.05〜5％の条件下で湿空養生す
るコンクリートの養生方法である。湿空養生時に炭酸ガ
ス濃度を0.05〜5％とすることは、湿空養生期間を短縮
できるので、特にコンクリート製品の製造等において好
ましいものである。[0011] Further, the present invention provides a method of curing a concrete kneaded material in a mold frame, removing the molded product, and further adding a relative humidity of 95 to 100.
% And a method of curing concrete that is cured under wet conditions under conditions of a carbon dioxide concentration of 0.05 to 5%. Setting the carbon dioxide concentration to 0.05 to 5% during the wet-air curing is particularly preferable in the production of concrete products and the like because the period of the wet-air curing can be shortened.
【００１２】コンクリート用材料について説明する。セ
メントとしては、普通・早強・中庸熱・低熱ポルトラン
ドセメント等の各種ポルトランドセメント、高炉セメン
ト・フライアッシュセメント等の各種混合セメント、都
市ゴミ焼却灰・下水汚泥焼却灰等の廃棄物を原料として
利用したセメント（エコセメント）、さらには前記ポル
トランドセメントやエコセメントの一部を石灰石粉末や
シリカヒューム等の混和材で置換したセメントが挙げら
れる。減水剤としては、リグニン系、ナフタレンスルホ
ン酸系、メラミン系、ポリカルボン酸系の減水剤（高性
能減水剤及び高性能ＡＥ減水剤も含む）が挙げられる。
細骨材としては、川砂、山砂、海砂、砕砂等が挙げられ
る。粗骨材としては、川砂利、山砂利、海砂利、砕石等
が挙げられる。また、必要に応じて、支障のない範囲内
で、空気連行剤、消泡剤、収縮低減剤、増粘剤等の従来
より公知のセメント用混和剤を使用することができる。The material for concrete will be described. As cement, various types of Portland cement, such as ordinary, early high, moderate heat, low heat Portland cement, various mixed cements, such as blast furnace cement and fly ash cement, municipal waste incineration ash, sewage sludge incineration ash, etc. are used as raw materials. Cement (eco-cement), and a cement obtained by replacing part of the portland cement or eco-cement with an admixture such as limestone powder or silica fume. Examples of the water reducing agent include lignin-based, naphthalene-sulfonic acid-based, melamine-based, and polycarboxylic acid-based water reducing agents (including high-performance water reducing agents and high-performance AE water reducing agents).
Examples of the fine aggregate include river sand, mountain sand, sea sand, and crushed sand. Examples of coarse aggregate include river gravel, mountain gravel, sea gravel, crushed stone, and the like. If necessary, conventionally known admixtures for cement, such as an air entraining agent, an antifoaming agent, a shrinkage reducing agent, and a thickening agent, can be used as long as they do not cause any trouble.
【００１３】[0013]
【実施例】以下実施例で本発明を説明する。 １．使用材料 以下に示す材料を使用した。 １）セメント；太平洋セメント（株）製普通ポルトラン
ドセメントを使用した。 ２）減水剤；花王（株）製「マイティ150」を使用し
た。 ３）細骨材；青梅砕砂を使用した。 ４）粗骨材；青梅砕石を使用した。 ５）水；水道水を使用した。The present invention will be described below with reference to examples. 1. Materials used The following materials were used. 1) Cement; ordinary Portland cement manufactured by Taiheiyo Cement Co., Ltd. was used. 2) Water reducing agent: "Mighty 150" manufactured by Kao Corporation was used. 3) Fine aggregate: Ome crushed sand was used. 4) Coarse aggregate: Ome crushed stone was used. 5) Water: Tap water was used.
【００１４】２．コンクリートの配合及び混練 上記材料を用いて、単位セメント量350kg／m3、水／セ
メント比0.435、減水剤／セメント比0.01、細骨材率45
％のコンクリートを調製した。混練は、２軸強制練りミ
キサー（0.1ｍ3）を用い、上記材料を一括してミキサー
に投入して90秒間混練した。2. Mixing and kneading of concrete Using the above materials, unit cement amount 350 kg / m 3 , water / cement ratio 0.435, water reducing agent / cement ratio 0.01, fine aggregate ratio 45
% Concrete was prepared. The kneading was carried out using a biaxial forced kneading mixer (0.1 m 3 ), and the above-mentioned materials were collectively charged into the mixer and kneaded for 90 seconds.
【００１５】３．養生 上記コンクリート混練物をφ10×20cmの型枠に打設し、
以下の方法で養生し、供試体を作製した。 型枠内で１日間養生（20℃）し、脱型後、20℃で２週
間湿空養生（相対湿度100％）した。 型枠内で１日間養生（20℃）し、脱型後、20℃で１週
間湿空養生（相対湿度100％、CO2濃度1％）した。 型枠内で１日間養生（20℃）し、脱型後、20℃で２週
間気中養生（相対湿度60％）した。 型枠内で１日間養生（20℃）し、脱型後、20℃で２週
間水中養生した。[0015] 3. Curing Pour the concrete mixture into a φ10 × 20cm formwork,
The specimen was cured by the following method. After curing in a mold for 1 day (20 ° C.), and after demolding, curing was performed at 20 ° C. for 2 weeks under wet air (100% relative humidity). After curing in a mold for 1 day (20 ° C.), and after demolding, curing was performed at 20 ° C. for 1 week under a moist atmosphere (relative humidity 100%, CO 2 concentration 1%). After curing in a mold for 1 day (20 ° C.), after demolding, it was cured in air at 20 ° C. for 2 weeks (relative humidity 60%). After curing for 1 day (20 ° C.) in the mold, after demolding, it was cured in water at 20 ° C. for 2 weeks.
【００１６】４．塩分浸透性試験 各供試体をJIS A 6205 付属書１に規定されている塩分
溶液（人口海水）に3ケ月間浸した後、供試体表面から
の深さ1.25〜2.5cmにおける部分の塩素イオン量を測定
した。その結果、の養生条件の供試体では塩素イオン
濃度は0.02％、の養生条件の供試体では塩素イオン濃
度は0.02％、の養生条件の供試体では塩素イオン濃度
は0.27％、の養生条件の供試体では塩素イオン濃度は
0.23％であった。これらの結果から、本発明で規定する
養生方法で製造された供試体では、塩分浸透性が低く、
耐久性に優れていることが分かる。また、湿空養生時に
CO2濃度を高めることによって、湿空養生期間を短くで
きることも分かる。4. Salt permeability test After immersing each specimen in a salt solution (artificial seawater) specified in Annex 1 of JIS A 6205 for 3 months, the amount of chloride ion at a depth of 1.25 to 2.5 cm from the specimen surface Was measured. As a result, in the specimen under the curing condition, the chloride ion concentration was 0.02%, in the specimen under the curing condition, the chloride ion concentration was 0.02%, and in the specimen under the curing condition, the chloride ion concentration was 0.27%. In the sample, the chloride ion concentration is
0.23%. From these results, the specimens produced by the curing method defined in the present invention have low salt permeability,
It turns out that it is excellent in durability. Also, when curing
It can also be seen that the moist air curing period can be shortened by increasing the CO 2 concentration.
【００１７】[0017]
【発明の効果】以上説明したように、本発明のコンクリ
ートの養生方法は、コンクリート混練物を型枠内で養生
し、脱型した後、さらに相対湿度95〜100％の条件下で
湿空養生するものである。そのため、特別な装置や操作
を必要とせずに、容易に、耐久性に優れる大型のコンク
リート製品やコンクリート構造物を製造することができ
るという利点を有する。As described above, according to the method for curing concrete of the present invention, the concrete kneaded material is cured in a mold, demolded, and further cured under a condition of a relative humidity of 95 to 100%. Is what you do. Therefore, there is an advantage that a large-sized concrete product or a concrete structure having excellent durability can be easily manufactured without requiring any special device or operation.
Claims (2)
脱型した後、さらに相対湿度95〜100％の条件下で１週
間以上湿空養生することを特徴とするコンクリートの養
生方法。(1) curing a concrete kneaded material in a formwork;
A method for curing concrete, comprising removing from a mold and further curing for 1 week or more under conditions of a relative humidity of 95 to 100%.
脱型した後、さらに相対湿度95〜100％、かつ炭酸ガス
濃度0.05〜5％の条件下で湿空養生することを特徴とす
るコンクリートの養生方法。2. Curing the concrete kneaded material in a formwork,
A method for curing concrete, comprising removing the mold and then curing under a dry air condition at a relative humidity of 95 to 100% and a carbon dioxide concentration of 0.05 to 5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9400099A JP2000281467A (en) | 1999-03-31 | 1999-03-31 | Curing of concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9400099A JP2000281467A (en) | 1999-03-31 | 1999-03-31 | Curing of concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000281467A true JP2000281467A (en) | 2000-10-10 |
Family
ID=14098150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9400099A Pending JP2000281467A (en) | 1999-03-31 | 1999-03-31 | Curing of concrete |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000281467A (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008308363A (en) * | 2007-06-14 | 2008-12-25 | Taiheiyo Precast Concrete Industry Co Ltd | Method for improving unevenness of color in cement base cured body |
| US7987032B2 (en) * | 2006-04-26 | 2011-07-26 | Nissan Motor Co., Ltd. | Driver feeling adjusting apparatus |
| WO2011103754A1 (en) * | 2010-02-26 | 2011-09-01 | 哈尔滨工业大学深圳研究生院 | Hollow concrete component and method for preparing the same |
| JP2011207028A (en) * | 2010-03-30 | 2011-10-20 | Fujita Corp | Wet-curing method of concrete structure |
| US8845940B2 (en) | 2012-10-25 | 2014-09-30 | Carboncure Technologies Inc. | Carbon dioxide treatment of concrete upstream from product mold |
| US9108883B2 (en) | 2013-06-25 | 2015-08-18 | Carboncure Technologies, Inc. | Apparatus for carbonation of a cement mix |
| US9376345B2 (en) | 2013-06-25 | 2016-06-28 | Carboncure Technologies Inc. | Methods for delivery of carbon dioxide to a flowable concrete mix |
| US9388072B2 (en) | 2013-06-25 | 2016-07-12 | Carboncure Technologies Inc. | Methods and compositions for concrete production |
| US9738562B2 (en) | 2013-06-25 | 2017-08-22 | Carboncure Technologies Inc. | Methods and compositions for concrete production |
| US9790131B2 (en) | 2013-02-04 | 2017-10-17 | Carboncure Technologies Inc. | System and method of applying carbon dioxide during the production of concrete |
| US10350787B2 (en) | 2014-02-18 | 2019-07-16 | Carboncure Technologies Inc. | Carbonation of cement mixes |
| US10570064B2 (en) | 2014-04-07 | 2020-02-25 | Carboncure Technologies Inc. | Integrated carbon dioxide capture |
| US10927042B2 (en) | 2013-06-25 | 2021-02-23 | Carboncure Technologies, Inc. | Methods and compositions for concrete production |
| WO2021243441A1 (en) * | 2020-06-03 | 2021-12-09 | Carbicrete Inc. | Method for making carbonated precast concrete products with enhanced durability |
| US11358903B2 (en) | 2019-04-12 | 2022-06-14 | Carbicrete Inc | Carbonation curing method to produce wet-cast slag-based concrete products |
| US11358304B2 (en) | 2019-12-10 | 2022-06-14 | Carbicrete Inc | Systems and methods for curing a precast concrete product |
| US11660779B2 (en) | 2016-04-11 | 2023-05-30 | Carboncure Technologies Inc. | Methods and compositions for treatment of concrete wash water |
| US11958212B2 (en) | 2017-06-20 | 2024-04-16 | Carboncure Technologies Inc. | Methods and compositions for treatment of concrete wash water |
-
1999
- 1999-03-31 JP JP9400099A patent/JP2000281467A/en active Pending
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7987032B2 (en) * | 2006-04-26 | 2011-07-26 | Nissan Motor Co., Ltd. | Driver feeling adjusting apparatus |
| JP2008308363A (en) * | 2007-06-14 | 2008-12-25 | Taiheiyo Precast Concrete Industry Co Ltd | Method for improving unevenness of color in cement base cured body |
| WO2011103754A1 (en) * | 2010-02-26 | 2011-09-01 | 哈尔滨工业大学深圳研究生院 | Hollow concrete component and method for preparing the same |
| JP2011207028A (en) * | 2010-03-30 | 2011-10-20 | Fujita Corp | Wet-curing method of concrete structure |
| US9492945B2 (en) | 2012-10-25 | 2016-11-15 | Carboncure Technologies Inc. | Carbon dioxide treatment of concrete upstream from product mold |
| US8845940B2 (en) | 2012-10-25 | 2014-09-30 | Carboncure Technologies Inc. | Carbon dioxide treatment of concrete upstream from product mold |
| US10654191B2 (en) | 2012-10-25 | 2020-05-19 | Carboncure Technologies Inc. | Carbon dioxide treatment of concrete upstream from product mold |
| US9790131B2 (en) | 2013-02-04 | 2017-10-17 | Carboncure Technologies Inc. | System and method of applying carbon dioxide during the production of concrete |
| US10683237B2 (en) | 2013-02-04 | 2020-06-16 | Carboncure Technologies Inc. | System and method of applying carbon dioxide during the production of concrete |
| US9463580B2 (en) | 2013-06-25 | 2016-10-11 | Carboncure Technologies Inc. | Methods for carbonation of a cement mix in a mixer |
| US9388072B2 (en) | 2013-06-25 | 2016-07-12 | Carboncure Technologies Inc. | Methods and compositions for concrete production |
| US9738562B2 (en) | 2013-06-25 | 2017-08-22 | Carboncure Technologies Inc. | Methods and compositions for concrete production |
| US9758437B2 (en) | 2013-06-25 | 2017-09-12 | Carboncure Technologies Inc. | Apparatus for delivery of carbon dioxide to a concrete mix in a mixer and determining flow rate |
| US11773031B2 (en) | 2013-06-25 | 2023-10-03 | Carboncure Technologies Inc. | Apparatus for delivery of a predetermined amount of solid and gaseous carbon dioxide |
| US10246379B2 (en) | 2013-06-25 | 2019-04-02 | Carboncure Technologies Inc. | Methods and compositions for concrete production |
| US9376345B2 (en) | 2013-06-25 | 2016-06-28 | Carboncure Technologies Inc. | Methods for delivery of carbon dioxide to a flowable concrete mix |
| US11773019B2 (en) | 2013-06-25 | 2023-10-03 | Carboncure Technologies Inc. | Methods and compositions for concrete production |
| US9108883B2 (en) | 2013-06-25 | 2015-08-18 | Carboncure Technologies, Inc. | Apparatus for carbonation of a cement mix |
| US10927042B2 (en) | 2013-06-25 | 2021-02-23 | Carboncure Technologies, Inc. | Methods and compositions for concrete production |
| US10350787B2 (en) | 2014-02-18 | 2019-07-16 | Carboncure Technologies Inc. | Carbonation of cement mixes |
| US10570064B2 (en) | 2014-04-07 | 2020-02-25 | Carboncure Technologies Inc. | Integrated carbon dioxide capture |
| US11878948B2 (en) | 2014-04-07 | 2024-01-23 | Carboncure Technologies Inc. | Integrated carbon dioxide capture |
| US11660779B2 (en) | 2016-04-11 | 2023-05-30 | Carboncure Technologies Inc. | Methods and compositions for treatment of concrete wash water |
| US11958212B2 (en) | 2017-06-20 | 2024-04-16 | Carboncure Technologies Inc. | Methods and compositions for treatment of concrete wash water |
| US11358903B2 (en) | 2019-04-12 | 2022-06-14 | Carbicrete Inc | Carbonation curing method to produce wet-cast slag-based concrete products |
| 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 |
| WO2021243441A1 (en) * | 2020-06-03 | 2021-12-09 | Carbicrete Inc. | Method for making carbonated precast concrete products with enhanced durability |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2000281467A (en) | Curing of concrete | |
| JPS606309B2 (en) | How to cast concrete | |
| CN107777981A (en) | A kind of regeneration concrete and preparation method thereof | |
| EP3442927B1 (en) | Method for producing aerated concrete moulded bodies | |
| US11597685B2 (en) | Method for making carbonated precast concrete products with enhanced durability | |
| CN113905863A (en) | Production method of wet casting slag-based concrete product | |
| CN107879681A (en) | A kind of concrete slurry, alkali-activated carbonatite lightweight rubber regeneration concrete and preparation method thereof | |
| CN108249859A (en) | A kind of alkali-activated carbonatite cementitious material pervious concrete and preparation method thereof | |
| KR20230162898A (en) | Method for manufacturing carbonated precast concrete products with improved durability | |
| CN109650819A (en) | A kind of high intensity high-durability haydite concrete product and preparation method thereof | |
| JP2002362958A (en) | Water-permeable concrete | |
| JP2004292174A (en) | Cement composition and concrete product using the same | |
| JP2007246293A (en) | Low shrinkage type light-weight concrete | |
| JP2001261414A (en) | Concrete having self-wetting/aging function and its executing method | |
| JP2003012361A (en) | Instant stripping porous concrete compact | |
| JP5724188B2 (en) | Concrete production method | |
| JP2002293601A (en) | Production process of lightweight mortar material | |
| JP3290171B2 (en) | Manufacturing method of porous concrete | |
| Uygunoğlu | Comparison of properties of prefabricated interlocking pavement blocks cured at different conditions | |
| JP5276276B2 (en) | Concrete composition and hardened concrete | |
| JP6576189B2 (en) | Underwater inseparable porous concrete | |
| JP2002356358A (en) | Water permeable concrete | |
| JPH08301639A (en) | Solidification and materialization of fly ash powder with geopolymer | |
| JP3275155B2 (en) | Method for producing raw consludge granular material | |
| RU2248953C1 (en) | Method for production of no-fines concrete on dense aggregates |