Concrete and mortar additive, process for the preparation thereof, and its use, as well as concrete or mortar containing it
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0791548
(2005-11-24)
|
등록번호 |
US-8114213
(2012-02-14)
|
우선권정보 |
DK-2004 01839 (2004-11-25) |
국제출원번호 |
PCT/DK2005/000754
(2005-11-24)
|
§371/§102 date |
20070523
(20070523)
|
국제공개번호 |
WO2006/056205
(2006-06-01)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
9 |
초록
▼
A self-compacting concrete and mortar additive is prepared, comprising an aqueous suspension matured and stabilized for 1-7 days, preferably 1-2 days, and having a consistency adapted to the dosing equipment used for dosing the additive when mixing concrete or mortar, and having a pH of 6.5-8, prefe
A self-compacting concrete and mortar additive is prepared, comprising an aqueous suspension matured and stabilized for 1-7 days, preferably 1-2 days, and having a consistency adapted to the dosing equipment used for dosing the additive when mixing concrete or mortar, and having a pH of 6.5-8, preferably 7 and containing 5-30, preferably 8-20, preferably 10-12% by weight of dry solid of a type of clay, consisting of clay minerals selected from the smectite, vermiculite and/or chlorite group.
대표청구항
▼
1. A self-compacting concrete or mortar consisting essentially of cement pozzolans, coarse aggregates, sand, non-pozzolanic mineral fines, plasticizers, superplasticizers and air-entraining agents, and water; and an additive for reducing the need for fines and superplasticizers, wherein said additiv
1. A self-compacting concrete or mortar consisting essentially of cement pozzolans, coarse aggregates, sand, non-pozzolanic mineral fines, plasticizers, superplasticizers and air-entraining agents, and water; and an additive for reducing the need for fines and superplasticizers, wherein said additive is a suspension of clay in water matured for 1-7 days and having a pH of 6.5-8, and containing 5-30 wt % of dry solid of the clay, wherein the clay is selected from the group consisting of smectite, vermiculite and chlorite, and the amount of dry solid of the clay is 0.1-0.4 wt % in relation to the amount of powder binder in the concrete or mortar. 2. The self-compacting concrete or mortar according to claim 1, wherein said clay contains 50-90 wt % of said clay minerals. 3. The self-compacting concrete or mortar according to claim 1, wherein the clay minerals comprise smectite. 4. The self-compacting concrete or mortar according to claim 1, wherein 50-90 wt % of said clay mineral is montmorillonite. 5. The self-compacting concrete or mortar according to claim 1, wherein the clay is bentonite clay. 6. The self-compacting concrete or mortar according to claim 1, wherein the binder is white Portland cement. 7. The self-compacting concrete or mortar according to claim 1, wherein the pozzolans comprise fly ash or micro silica. 8. The self-compacting concrete or mortar according to claim 2, wherein said clay contains 60-80 wt % of said clay minerals. 9. The self-compacting concrete or mortar according to claim 8, wherein said clay contains 70-75 wt % of said clay minerals. 10. The self-compacting concrete or mortar according to claim 9, wherein said clay contains 75 wt % of said clay minerals. 11. The self-compacting concrete or mortar according to claim 4, wherein 60-80 wt % by weight of said clay mineral is montmorillonite. 12. The self-compacting concrete or mortar according to claim 11, wherein 70 wt % of said clay mineral is montmorillonite. 13. The self-compacting concrete or mortar according to claim 5, wherein the bentonite clay is calcium bentonite. 14. The self-compacting concrete or mortar according to claim 1, wherein said clay in water suspension has matured for 1-2 days. 15. The self-compacting concrete or mortar according to claim 1, wherein said clay in water suspension has a pH of 7. 16. The self-compacting concrete or mortar according to claim 1, wherein said clay in water suspension contains 8-20 wt % by weight of dry solid. 17. The self-compacting concrete or mortar according to claim 16, wherein said clay in water suspension contains 10-12 wt % by weight of dry solid. 18. The self-compacting concrete or mortar according to claim 1, wherein the amount of dry solid of the clay is 0.2-0.3 wt % in relation to the amount of powder binder in the concrete or mortar. 19. The self-compacting concrete or mortar according to claim 18, wherein the amount of dry solid of the clay is 0.25 wt % in relation to the amount of powder binder in the concrete or mortar.
이 특허에 인용된 특허 (9)
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Gelbman Lawrence F. (Yonkers NY), Cellular concrete.
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Watanabe Yoshiharu (Niigata JPX) Shimizu Hisayuki (Niigata JPX) Ito Mineo (Niigata JPX) Moriyama Hitoshi (Itoigawa JPX), Cement additive containing superplasticizer and bentonite.
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Cluyse Jean (Louvain-La-Neuve VA BEX) Ford Philip (Suffolk VA) Langley John G. (Leeds VA GB2) Lowry Peter (Suffolk VA), Clay compositions and their use in paper making.
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Hofmann Harriet E. (Shrewsbury MA), Low temperature setting refractory cements.
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Carroll Paul W. (Gonzales TX), Method for preparing high solids bentonite slurries.
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Knudson Milburn I. (Gonzales TX) Carroll Paul (Gonzales TX) Hanlon David J. (Gonzales TX) Menking William R. (Gonzales TX) Lewis Patricia M. (Gonzales TX), Method for preparing high solids bentonite slurries.
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Dongell Jonathan E. (Scottsdale AZ), Pozzolan cement compositions and admixtures therefor.
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Tallard Gilbert R. (128 Corlies Ave. Pelham NY 10803), Self-hardening slurry mix.
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Payton James ; Canaris Nicholas ; Miranda Jorge, Stabilized, high solids, low viscosity smectite slurries, and method of preparation.
이 특허를 인용한 특허 (5)
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Agapiou, Kyriacos; Pisklak, Thomas Jason; Morgan, Ronnie Glen; Lewis, Samuel Jason; Brothers, Lance Everett, Set-delayed cement compositions comprising pumice and associated methods.
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Brothers, Lance Everett; Pisklak, Thomas Jason, Set-delayed cement compositions comprising pumice and associated methods.
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Brothers, Lance Everett; Pisklak, Thomas Jason, Set-delayed cement compositions comprising pumice and associated methods.
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Pisklak, Thomas Jason; Agapiou, Kyriacos; Morgan, Ronnie Glen; Lewis, Samuel Jason; Brothers, Lance Everett, Set-delayed cement compositions comprising pumice and associated methods.
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Pisklak, Thomas Jason; Agapiou, Kyriacos; Morgan, Ronnie Glen; Lewis, Samuel Jason; Brothers, Lance Everett, Set-delayed cement compositions comprising pumice and associated methods.
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