CN102503273A - Slow-setting cement grout - Google Patents
Slow-setting cement grout Download PDFInfo
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- CN102503273A CN102503273A CN2011103388458A CN201110338845A CN102503273A CN 102503273 A CN102503273 A CN 102503273A CN 2011103388458 A CN2011103388458 A CN 2011103388458A CN 201110338845 A CN201110338845 A CN 201110338845A CN 102503273 A CN102503273 A CN 102503273A
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Abstract
Disclosed is slow-setting cement grout. The ratio of basic cement grout includes that the water-cement ratio is 1-1.25:1, 1.5-2wt% of a suspending agent and a retarder are adulterated in the basic cement grout, the retarder is a mixture mixed by one, two or more of six retarders including sodium pyrophosphate, sodium tripolyphosphate, tartaric acid, potassium sodium tartrate, citric acid or zinc chloride according to arbitrary mixing ratio, wherein the mixing amount of the sodium pyrophosphate is 0.1%-0.5%, the mixing amount of the sodium tripolyphosphate is 0.1%-0.6%, the mixing amount of the tartaric acid is 0.2-0.4%, the mixing amount of the potassium sodium tartrate is 0.4%-0.5%, the mixing amount of the citric acid is 0.05%-0.35%, and the mixing amount of the zinc chloride is 0.2%-0.3%, and the suspending agent is sodium bentonite. The slow-setting cement grout has the advantages that stability of the cement grout is enhanced, settling time of cement particles is prolonged, and the concretion ratio of the grout is increased.
Description
Technical field
The present invention relates to a kind of injecting paste material, specifically is a kind of slow setting cement slurries.
Background technology
In the pit shaft construction project, along with the increase that press on the increase and the ground of the degree of depth, the difficulty that pre-grouting from the surface and pre-grouting from the working face are harnessed the river is increasing usually, and effect also more and more cannot say for sure to demonstrate,prove; Especially to the rock stratum of the parallel cranny development of high angle, or be rich in the sand layers of pore water, slip casting effect is difficult to guarantee especially.
Existing cement grout has shortcomings such as flowability is poor, stability is low, the cement granules ST short, the calculus rate is low.Because formation properties is comparatively complicated; Need the more chemical admixture of admixture in the freezing borehole mud; Thereby in the grout replacement process, influence the performance index such as time of coagulation of cement grout, thereby preparation can be compatible with drilling slurry; Having good flowability, stability, the slow setting cement slurries of reasonable time of coagulation, is the important and key issue that freezing hole is managed the water shutoff technical study admittedly.
Summary of the invention
In order to overcome the deficiency of above-mentioned prior art, the present invention provides a kind of slow setting cement slurries, improves the stability of cement grout, prolongs the cement granules ST, has improved slurries calculus rate.
The present invention realizes with following technical scheme: a kind of slow setting cement slurries, and basic cement grout proportioning is: wc 1～1.25: 1; Admixture weight is 1.5～2% suspension agent and retardant in basic cement grout; Described retardant is the mixture of one or both and two or more any ratio of mixture in tripoly phosphate sodium STPP, tartrate, Seignette salt, Hydrocerol A or six kinds of retardant of zinc chloride; The volume 0.1%～0.5% of trisodium phosphate wherein; The volume 0.1%～0.6% of tripoly phosphate sodium STPP, tartaric volume 0.2%～0.4%, the volume 0.4%～0.5% of Seignette salt, the volume 0.05%～0.35% of Hydrocerol A; The volume 0.2%～0.3% of zinc chloride; Above-mentioned suspension agent is a sodium bentonite.
It further is: the Xylo-Mucine that also is mixed with 0.8-1% in the above-mentioned mixed solution.
Described retardant is the mixture of tripoly phosphate sodium STPP and Hydrocerol A; The volume 0.50～0.6% of tripoly phosphate sodium STPP, the volume of Hydrocerol A are 0.2～0.3%.
Described retardant is the mixture of trisodium phosphate and Hydrocerol A; The volume 0.3%～0.5% of trisodium phosphate, Hydrocerol A volume 0.2～0.3%.
The invention has the beneficial effects as follows: improve the mobile and stable of cement grout, prolong the cement granules ST, improved slurries calculus rate.
Embodiment
A kind of slow setting cement slurries, basic cement grout proportioning is: wc 1～1.25: 1; In basic cement grout proportioning be: wc 1～1.25: 1; Admixture weight is 1.5～2% suspension agent and retardant in basic cement grout; Described retardant is the mixture of one or both and two or more any ratio of mixture in tripoly phosphate sodium STPP, tartrate, Seignette salt, Hydrocerol A or six kinds of retardant of zinc chloride; The volume 0.1%～0.5% of trisodium phosphate wherein; Tripoly phosphate sodium STPP volume 0.1%～0.6%, tartaric volume 0.2%～0.4%, the volume 0.4%～0.5% of Seignette salt, the volume 0.05%～0.35% of Hydrocerol A; The volume 0.2%～0.3% of zinc chloride; Above-mentioned suspension agent is a sodium bentonite.
After the cement grout preparation was accomplished, As time goes on cement granules will precipitate.Because freezing pipe sinking required time is the shortest 18h is arranged also, therefore, the quick bleed of slurries, deposition will be aggravated the bottom hydrated cementitious, promote it to condense, and be unfavorable for pipe down.For this reason, should pass through the admixture suspension agent, come to improve as much as possible the stability of slurries.
Embodiment 1:
Basic cement grout proportioning is confirmed as: wc 1: 1, the sodium bentonite of admixture 1.6% in basic cement grout, 0.2% trisodium phosphate (analytical pure).
Embodiment 2
Basic cement grout proportioning is confirmed as: wc 1: 1, the sodium bentonite of admixture 1.6% in basic cement grout, 0.45% trisodium phosphate (analytical pure).
Embodiment 3
Basic cement grout proportioning is confirmed as: wc 1: 1, the sodium bentonite of admixture 1.8% in basic cement grout, 0.15% tripoly phosphate sodium STPP (analytical pure).
Embodiment 4
Basic cement grout proportioning is confirmed as: wc 1: 1, the sodium bentonite of admixture 1.8% in basic cement grout, 0.55% tripoly phosphate sodium STPP (analytical pure).
Embodiment 5
Basic cement grout proportioning is confirmed as: wc 1: 1, the sodium bentonite of admixture 1.8% in basic cement grout, 0.3% tartrate (analytical pure) and
Embodiment 6
Basic cement grout proportioning is confirmed as: wc 1: 1, the sodium bentonite of admixture 1.8% in basic cement grout, 0.45% Seignette salt (analytical pure)
Embodiment 7
Basic cement grout proportioning is confirmed as: wc 1.2: 1, the sodium bentonite of admixture 1.8% in basic cement grout, 0.05% Hydrocerol A (analytical pure).
Embodiment 8
Basic cement grout proportioning is confirmed as: wc 1.2: 1, the sodium bentonite of admixture 1.8% in basic cement grout, 0.05% Hydrocerol A (analytical pure).
Embodiment 9
Basic cement grout proportioning is confirmed as: wc 1.2: 1, the sodium bentonite of admixture 1.8% in basic cement grout, 0.35% Hydrocerol A (analytical pure).
Embodiment 10
Basic cement grout proportioning is confirmed as: wc 1.2: 1, the sodium bentonite of admixture 1.8% in basic cement grout, 0.25% zinc chloride (analytical pure).
Embodiment 11
Basic cement grout proportioning is confirmed as: wc 1.2: 1, the sodium bentonite of admixture 1.8% in basic cement grout, 0.25% zinc chloride (analytical pure).
Embodiment 12
Basic cement grout proportioning is confirmed as: wc 1.2: 1, the sodium bentonite of admixture 1.8% in basic cement grout, 0.25% zinc chloride (analytical pure).
Embodiment 13
Basic cement grout proportioning is confirmed as: wc 1.2: 1, the sodium bentonite of admixture 1.8% in basic cement grout, 0.25% trisodium phosphate (industrial goods), 0.35% tripoly phosphate sodium STPP (industrial goods), 0.2% Hydrocerol A (industrial goods).
Embodiment 14
Basic cement grout proportioning is confirmed as: wc 1.2: 1, the sodium bentonite of admixture 1.8% in basic cement grout, 0.25% trisodium phosphate (industrial goods), 0.2% Hydrocerol A (industrial goods).
Embodiment 15
Basic cement grout proportioning is confirmed as: wc 1.2: 1, the sodium bentonite of admixture 1.8% in basic cement grout, 0.25% trisodium phosphate (industrial goods), 0.4% tartrate (industrial goods), 0.2% Hydrocerol A (industrial goods).
Embodiment 16
Basic cement grout proportioning is confirmed as: wc 1.2: 1, the sodium bentonite of admixture 1.8% in basic cement grout, 0.35% tripoly phosphate sodium STPP (industrial goods), 0.2% Hydrocerol A (industrial goods).
Embodiment 17
Basic cement grout proportioning is confirmed as: wc 1.2: 1, the sodium bentonite of admixture 1.8% in basic cement grout, 0.25% trisodium phosphate (industrial goods), 0.35% tripoly phosphate sodium STPP (industrial goods).
Embodiment 18
Basic cement grout proportioning is confirmed as: wc 1.2: 1, the sodium bentonite of admixture 1.8% in basic cement grout, 0.9% Xylo-Mucine, 0.35% tripoly phosphate sodium STPP (industrial goods), 0.2% Hydrocerol A (industrial goods).
Embodiment 19
Basic cement grout proportioning is confirmed as: wc 1.2: 1, the sodium bentonite of admixture 1.8% in basic cement grout, 0.9% Xylo-Mucine, 0.25% trisodium phosphate (industrial goods), 0.35% tripoly phosphate sodium STPP (industrial goods).
Embodiment 20
Basic cement grout proportioning is confirmed as: wc 1.2: 1, the sodium bentonite of admixture 1.8% in basic cement grout, 0.9% Xylo-Mucine, 0.35% Hydrocerol A (analytical pure).
Embodiment 21
Basic cement grout proportioning is confirmed as: wc 1: 1, the sodium bentonite of admixture 1.6% in basic cement grout, 0.9% Xylo-Mucine, 0.3% trisodium phosphate (analytical pure).
Embodiment 22
Basic cement grout proportioning is confirmed as: wc 1: 1, the sodium bentonite of admixture 1.8% in basic cement grout, 0.9% Xylo-Mucine, 0.35% tripoly phosphate sodium STPP (analytical pure).
Embodiment 23
Basic cement grout proportioning is confirmed as: wc 1: 1, the sodium bentonite of admixture 1.8% in basic cement grout, 0.9% Xylo-Mucine, 0.4% tartrate and Seignette salt (analytical pure).
Embodiment 24
Basic cement grout proportioning is confirmed as: wc 1.2: 1, the sodium bentonite of admixture 1.8% in basic cement grout, 0.9% Xylo-Mucine, 0.25% zinc chloride (analytical pure).
Mix sodium bentonite in the cement grout, not only help to improve the stability of slurries, prolong the cement granules ST, and help to improve slurries calculus rate.Therefore, tentatively confirm admixture sodium bentonite in the cement grout.In addition, cement grout bleed, deposition are generally very fast, and its basic reason is that cement granules is bigger, and its viscosity is very low.Given this, the stability that the plan Xylo-Mucine (CMC) that further admixture has good tackify effect in cement grout comes the refinforced cement slurries is slowed down its bleed sedimentation speed.
Effect comparison:
Slow setting cement slurries of the present invention have good fluidity, stability and higher calculus rate, and the slow setting time is longer.
Claims (4)
1. slow setting cement slurries is characterized in that: basic cement grout proportioning is: wc 1～1.25: 1; Admixture weight is 1.5～2% suspension agent and retardant in basic cement grout; Described retardant is the mixture of one or both and two or more any ratio of mixture in tripoly phosphate sodium STPP, tartrate, Seignette salt, Hydrocerol A or six kinds of retardant of zinc chloride; The volume 0.1%～0.5% of trisodium phosphate wherein; The volume 0.1%～0.6% of tripoly phosphate sodium STPP, tartaric volume 0.2%～0.4%, the volume 0.4%～0.5% of Seignette salt, the volume 0.05%～0.35% of Hydrocerol A; The volume 0.2%～0.3% of zinc chloride; Above-mentioned suspension agent is a sodium bentonite.
2. slow setting cement slurries according to claim 1 is characterized in that: also be mixed with 0.8～1% Xylo-Mucine in the above-mentioned mixed solution.
3. slow setting cement slurries according to claim 1 and 2 is characterized in that: described retardant is the mixture of tripoly phosphate sodium STPP and Hydrocerol A; The volume 0.50～0.6% of tripoly phosphate sodium STPP, the volume 0.2～0.3% of Hydrocerol A.
4. slow setting cement slurries according to claim 1 and 2 is characterized in that: described retardant is the mixture of trisodium phosphate and Hydrocerol A; The volume 0.3%～0.5% of trisodium phosphate, the volume 0.2～0.3% of Hydrocerol A.
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| CN2011103388458A CN102503273A (en) | 2011-10-25 | 2011-10-25 | Slow-setting cement grout |
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| CN2011103388458A CN102503273A (en) | 2011-10-25 | 2011-10-25 | Slow-setting cement grout |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103305198A (en) * | 2013-06-09 | 2013-09-18 | 中国矿业大学 | Coal mine underground borehole filling reinforcement material |
| CN103482898A (en) * | 2013-06-27 | 2014-01-01 | 俞锡贤 | Thickening time control agent used for gypsum mortar, and preparation method thereof |
| CN104129943A (en) * | 2014-08-18 | 2014-11-05 | 四川恒泽建材有限公司 | Wet-mixed mortar admixture as well as preparation method and application thereof |
| CN105541163A (en) * | 2015-12-08 | 2016-05-04 | 同济大学 | Cement retarder with tartaric acid by-product and VC waste mother liquor as main materials and use method thereof |
| CN106396450A (en) * | 2016-09-30 | 2017-02-15 | 沈阳建筑大学 | Inorganic mineral polymer retarder and preparation method thereof |
| CN109399988A (en) * | 2018-12-07 | 2019-03-01 | 杭州中荷智慧城市科技有限公司 | A kind of cement concrete retarder |
| CN110342850A (en) * | 2019-07-17 | 2019-10-18 | 南京永能新材料有限公司 | A kind of efficient retarder for cement and preparation method thereof |
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| CN102060487A (en) * | 2010-11-19 | 2011-05-18 | 中煤特殊凿井(集团)有限责任公司 | Retarding cement slurry composite for replacement of super-deep freezing hole and preparation method thereof |
| CN102092982A (en) * | 2010-12-30 | 2011-06-15 | 济南鲁新新型建材有限公司 | Concrete pipeline mud-jacking agent and preparation method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103305198A (en) * | 2013-06-09 | 2013-09-18 | 中国矿业大学 | Coal mine underground borehole filling reinforcement material |
| CN103482898A (en) * | 2013-06-27 | 2014-01-01 | 俞锡贤 | Thickening time control agent used for gypsum mortar, and preparation method thereof |
| CN103482898B (en) * | 2013-06-27 | 2015-06-10 | 俞锡贤 | Thickening time control agent used for gypsum mortar, and preparation method thereof |
| CN104129943A (en) * | 2014-08-18 | 2014-11-05 | 四川恒泽建材有限公司 | Wet-mixed mortar admixture as well as preparation method and application thereof |
| CN104129943B (en) * | 2014-08-18 | 2016-03-23 | 四川恒泽建材有限公司 | Wet mixing mortar admixture and its preparation method and application |
| CN105541163A (en) * | 2015-12-08 | 2016-05-04 | 同济大学 | Cement retarder with tartaric acid by-product and VC waste mother liquor as main materials and use method thereof |
| CN106396450A (en) * | 2016-09-30 | 2017-02-15 | 沈阳建筑大学 | Inorganic mineral polymer retarder and preparation method thereof |
| CN106396450B (en) * | 2016-09-30 | 2018-06-29 | 沈阳建筑大学 | A kind of geopolymer retarder and preparation method thereof |
| CN109399988A (en) * | 2018-12-07 | 2019-03-01 | 杭州中荷智慧城市科技有限公司 | A kind of cement concrete retarder |
| CN110342850A (en) * | 2019-07-17 | 2019-10-18 | 南京永能新材料有限公司 | A kind of efficient retarder for cement and preparation method thereof |
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Application publication date: 20120620 |