[특허]Methods and compositions for concrete production

[미국특허] Methods and compositions for concrete production 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C04B-007/02 C04B-007/26 C04B-040/02
출원번호	US-0701456 (2015-04-30)
등록번호	US-9388072 (2016-07-12)
발명자 / 주소	Niven, Robert Monkman, George Sean Forgeron, Dean Paul Cail, Kevin Brown, Joshua Jeremy Sandberg, Paul J. MacDonald, Mark
출원인 / 주소	CARBONCURE TECHNOLOGIES INC.
대리인 / 주소	Wilson Sonsini Goodrich & Rosati
인용정보	피인용 횟수 : 6 인용 특허 : 114

초록

The invention provides compositions and methods directed to carbonation of a cement mix during mixing. The carbonation may be controlled by one or more feedback mechanisms to adjust carbon dioxide delivery based on one or more characteristics of the mix or other aspects of the mixing operation.

대표청구항 ▼

1. A method of carbonating a wet cement mix comprising delivering a dose of carbon dioxide to the wet cement mix during mixing in a mixer, wherein the dose is 1.5% or less by weight cement (bwc) in the mix,the dose of carbon dioxide is a dose that produces a carbonated cement mix with a flowability at one or more time points after mixing that is within 50% of the flowability of a cement mix of the same mix design that is uncarbonated, andthe carbon dioxide is delivered by a process that comprises converting liquid carbon dioxide to a mixture of gaseous and solid carbon dioxide and contacting the wet cement mix with the mixture of solid and gaseous carbon dioxide,thereby carbonating the wet cement mix. 2. The method of claim 1 wherein the cement mix comprises Portland cement comprising gypsum. 3. The method of claim 1 wherein the mixer is an open mixer. 4. The method of claim 1 wherein the dose of carbon dioxide is 1.0% or less bwc. 5. The method of claim 1 wherein the dose of carbon dioxide is 0.5% or less bwc. 6. The method of claim 1 wherein the carbon dioxide is delivered to the surface of the wet cement mix. 7. The method of claim 6 wherein the carbon dioxide is delivered to the surface of the wet cement mix at a distance from the surface of the wet cement mix of at least 5 cm, on average. 8. The method of claim 1 wherein the contacting of the wet cement mix with the carbon dioxide lasts no more than 5 minutes. 9. The method of claim 1 wherein the dose of carbon dioxide is a dose based at least in part on a type of cement used in the mix. 10. The method of claim 9 wherein the dose of carbon dioxide is a dose based at least in part on testing one or more doses of carbon dioxide on test wet cement mix comprising the type of cement to be used in the wet cement mix in the mixer. 11. The method of claim 10 wherein the testing comprises determining, for each carbon dioxide dose tested, a carbonation level of the test cement mix, a compressive strength of the test cement mix after hardening, a flowability of the test cement mix, or a calorimetry curve for the test cement mix, or a combination thereof. 12. The method of claim 1 wherein the mixer is a mixer that is fixed or relatively fixed in location. 13. The method of claim 1 wherein the mixer is a transportable mixer. 14. The method of claim 13 wherein the mixer is a drum of a ready-mix truck. 15. The method of claim 1 further comprising assessing at least one characteristic of the mix operation during the delivery of the carbon dioxide and modulating the dose of carbon dioxide based on the characteristic. 16. A method of carbonating a wet concrete mix having a mix design comprising delivering a dose of carbon dioxide to the wet concrete mix during mixing in a mixer, thereby carbonating the wet concrete mix, wherein the concrete mix comprises Portland cement comprising gypsum;the dose of carbon dioxide is 1.5% or less by weight cement (bwc) in the mix;the dose of carbon dioxide is a dose that produces a carbonated concrete mix with a flowability at one or more time points after mixing that is within 50% of the flowability of a concrete mix of the same mix design that is uncarbonated; andthe carbon dioxide is delivered to the concrete mix via a conduit with an opening, wherein the opening is at least 5 cm, on average, from the surface of the mixing concrete mix. 17. The method of claim 16 wherein the dose of carbon dioxide is 1.0% or less bwc. 18. The method of claim 16 wherein the mixer is a transportable mixer. 19. The method of claim 18 wherein the transportable mixer is a drum of a ready-mix truck. 20. The method of claim 16 wherein the carbon dioxide dose is based at least in part on a cement type in the mix design. 21. The method of claim 20 wherein the carbon dioxide dose is a dose based at least in part on testing one or more doses of carbon dioxide on test wet cement mix comprising the type of cement to be used in the concrete mix in the mixer. 22. The method of claim 21 wherein the testing comprises determining, for each carbon dioxide dose tested, a carbonation level of the test cement mix, a compressive strength of the test cement mix after hardening, a flowability of the test cement mix, or a calorimetry curve for the test cement mix, or a combination thereof. 23. The method of claim 16 wherein the dose of carbon dioxide is a dose that produces a carbonated concrete mix with a compressive strength at one or more time points after mixing that is at least 5% greater than a compressive strength of a concrete mix of the same mix design that is uncarbonated. 24. The method of claim 9 wherein the dose of carbon dioxide is based at least in part on testing two or more doses of carbon dioxide on test wet cement mix comprising the type of cement to be used in the wet cement mix in the mixer. 25. The method of claim 9 wherein the dose of carbon dioxide is based at least in part on testing three or more doses of carbon dioxide on test wet cement mix comprising the type of cement to be used in the wet cement mix in the mixer. 26. The method of claim 1 wherein the dose of carbon dioxide is a dose that produces a carbonated concrete mix with a compressive strength at one or more time points after mixing that is at least 5% greater than a compressive strength of a concrete mix of the same mix design that is uncarbonated. 27. The method of claim 2 wherein the wet cement mix further comprises aggregates. 28. The method of claim 27 wherein the wet cement mix further comprises a supplementary cementitious material (SCM). 29. The method of claim 6 wherein the carbon dioxide is delivered to the surface of the wet cement mix at a distance from the surface of the wet cement mix of 0.5 to 2 meters, on average. 30. The method of claim 21 wherein the dose of carbon dioxide is based at least in part on testing two or more doses of carbon dioxide on test wet cement mix comprising the type of cement to be used in the wet cement mix in the mixer. 31. The method of claim 21 wherein the dose of carbon dioxide is based at least in part on testing three or more doses of carbon dioxide on test wet cement mix comprising the type of cement to be used in the wet cement mix in the mixer.

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이 특허를 인용한 특허 (6) 인용/피인용 타임라인 분석

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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