CN101891413A - Flocculating agent for cement high pressure jet grouting and preparation method and application thereof - Google Patents
Flocculating agent for cement high pressure jet grouting and preparation method and application thereof Download PDFInfo
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Abstract
The invention discloses a flocculating agent for cement high pressure jet grouting and preparation method and application thereof. The flocculating agent is composed of konjac glucomannan, carbonate, rheological agent, dispersing agent, early strength agent and water by uniform stirring, distillation and smashing, and the weight ratio of the konjac glucomannan, carbonate, rheological agent, dispersing agent and early strength agent is 35-45: 22-28: 8-12: 13-17: 8-12; the preparation thereof includes the steps: raw material weighing and fully dissolution, mixed slurry confecting and distillation, spray drying, smashing and sieving; and the application thereof includes the steps: admixture determination, flocculating agent cement slurry confecting and slurry grouting completing by utilizing high pressure jet grouting process. The invention has simple preparation step, low cost and simple and convenient use and has no harm on human body, application in high pressure jet grouting construction is simple and convenient and processing effect is good, and the problems that pure cement slurry has poor adhesion, high cement slurry drain, high construction cost and influence on construction progress existed in high pressure jet impermeable grouting can be solved.
Description
Technical field
The invention belongs to cement high pressure jet antiseepage grouting construction technical field, especially relate to a kind of flocculating agent for cement high pressure jet grouting and its production and application.
Background technology
In water conservancy project cofferdam body antiseepage construction, existing high technology all takes the plain cement slurries to be in the milk, and the easy pulp-water of plain cement slurries separates, thereby poor with sticking of gravel soil, easily causes slurries to run off.Especially it is excessive to run into the cofferdam unreasonable voidage that causes of body gravel soil grating, and and permeable amount that geological fracture band cause big by the joint fissure aperture is greatly the time, the difficulty that the method that adopts the plain cement slurries to carry out high spray antiseepage grouting is finished leakage proof wall further strengthens, easily cause a large amount of losses of cement grout, the loss maximum of cement grout can reach more than 80%.Thereby when adopting the plain cement slurries to carry out height spray antiseepage grouting, excessive to the engineering materials loss, construction cost strengthens.
Summary of the invention
Technical problem to be solved by this invention is at above-mentioned deficiency of the prior art, and the flocculating agent for cement high pressure jet grouting of over-all propertieies such as the viscosity that can effectively improve cement grout behind a kind of and the plain cement slurries mix, degree of mobilization loss, bleeding rate, calculus rate, time of coagulation, shrinkage, permeability coefficient is provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of flocculating agent for cement high pressure jet grouting, it is characterized in that: described flocculation agent fully dissolves for adding water respectively earlier by konjak glucomannan, carbonate, rheological agent, dispersion agent and hardening accelerator, konjak glucomannan solution, carbonate solution, rheological agent solution, dispersant solution and the hardening accelerator solution stirring that will obtain after will fully dissolving then even mixed serum, more described mixed serum is distilled, pulverizing and spraying drying and the pulvis that sieves and make; Wherein, the weight ratio of described konjak glucomannan, carbonate, rheological agent, dispersion agent and hardening accelerator is 40 ± 5: 25 ± 3: 10 ± 2: 15 ± 2: 10 ± 2, described rheological agent, dispersion agent and hardening accelerator are rheological agent, dispersion agent and the hardening accelerator that is applicable to cement cementitious material, and the mass concentration of solid solute is 30% ± 5% in the described mixed serum.
Above-mentioned flocculating agent for cement high pressure jet grouting is characterized in that: described carbonate is yellow soda ash.
Above-mentioned flocculating agent for cement high pressure jet grouting is characterized in that: the weight ratio of described konjak glucomannan, carbonate, rheological agent, dispersion agent and hardening accelerator is 40: 25: 10: 15: 10.
Above-mentioned flocculating agent for cement high pressure jet grouting is characterized in that: described hardening accelerator is FN type concrete early strength agent, and described dispersion agent is dispersion agent NNO, and described rheological agent is an aluminium magensium silicate class rheological agent.
Simultaneously, the present invention also provide a kind of method steps simple, easy and simple to handle, realize the preparation method convenient and flocculating agent for cement high pressure jet grouting that input cost is low, it is characterized in that this method may further comprise the steps:
Step 1, raw material weighing and fully dissolving: earlier by design proportioning, weighing konjak glucomannan, carbonate, rheological agent, dispersion agent and five kinds of raw materials of hardening accelerator; After in five kinds of raw materials that weigh, adding water respectively again and fully dissolving, corresponding konjak glucomannan solution, carbonate solution, rheological agent solution, dispersant solution and the hardening accelerator solution of making;
Step 2, the preparation mixed serum: the konjak glucomannan solution described in the step 1, carbonate solution, rheological agent solution, dispersant solution and hardening accelerator solution are poured in the container simultaneously, stir mixed serum;
Step 3, distillation, pulverizing, spraying drying and sieve: will the mixed serum in the step 2 drop in the distil container and distill, the mass concentration of solid solute reaches at 50%～60% o'clock and stops distillation in described mixed serum, and makes compound; Again described compound is dropped into spray-drier and under 100 ℃～150 ℃ described compound carried out spraying drying, and make the mixing fine powders material; Subsequently, adopt pulverizer described mixing fine powders material to be pulverized and crossed 500 orders and make pulvis after with top sieve.
The preparation method of above-mentioned flocculating agent for cement high pressure jet grouting is characterized in that: the container described in the step 1 neutralization procedure two is plastics, glass or enamelled vessel.
Simultaneously, the present invention provides also that slurries run off less in the construction of a kind of cement high pressure jet grouting, save cost, can finish antiseepage cement-grouting consolidation wall construction preferably and play the application of the flocculating agent for cement high pressure jet grouting that stops current infiltration purpose, it is characterized in that may further comprise the steps:
Step I, volume are determined: mix the addition that the water cement ratio of making grout is determined flocculating agent for cement high pressure jet grouting according to need, the water cement ratio of wherein said grout is 0.5～1: 1, add flocculating agent for cement high pressure jet grouting and cement weight percent be 5～10%, and add flocculating agent for cement high pressure jet grouting and cement weight percent increase gradually with the increase of the water cement ratio of described grout;
Step II, preparation flocculation agent slurries: adopt the slurries stirrer that prepared flocculating agent for cement high pressure jet grouting and water are prepared by weight, constantly stir in the time of preparation, and get the flocculation agent slurries after stirring 1～2min;
Step II I, preparation high slurries: cement is added in the flocculation agent slurries of preparing in the Step II, constantly stir in the time of adding, and get the high slurries after stirring 1～2min;
Step IV, pulp and high: join by the grout outlet and the high machine of pipeline, and carry out high according to conventional high method with described slurries stirrer.
The application of above-mentioned flocculating agent for cement high pressure jet grouting is characterized in that: the slurries stirrer described in the Step II is a cement mixer.
The present invention compared with prior art has the following advantages:
1, preparation process is simple, realization is convenient and cost is low, and is with low cost owing to being main component with the konjak glucomannan, thereby can reduce engineering cost, accelerating construction progress.
2, prepared flocculating agent for cement high pressure jet grouting is meal, and is nonpoisonous and tasteless, safe and reliable, human body, reinforcing bar, environment, concrete all had no adverse effect nontoxic pollution-free.
3, prepared product use easy and simple to handle, to be convenient to Construction control, effect height and result of use good, prepared flocculating agent for cement high pressure jet grouting is a kind of additive that is specifically designed in the cement high pressure jet antiseepage grouting construction.The cement slurry of this flocculation agent of admixture is compared with the Portland cement slurry, have advantages such as the loss of viscosity height, degree of mobilization is little, bleeding rate is little, calculus rate height, time of coagulation is short, contraction is little, permeability coefficient is low, can satisfy the infiltration and the agglomerative requirement of cement slurry, reduce the loss of cement slurry, effectively shutoff ground hole.
4, prepared flocculating agent for cement high pressure jet grouting is applied to the mechanism of action in the high construction and is: the flocculation agent of institute's admixture is to be main component with konjak glucomannan (KGM), use the KGM flocculation agent to make an addition in the cement grout, the slurries of its formation have viscosity high and can play thickening, adhesive aggregation, suspension, the degree of mobilization loss is little, bleeding rate is little, meet water is difficult for disperseing, filling fast and stick space, time of coagulation early strength, calculus rate height, permeability coefficient short, that improve calculus superperformance such as little.Thereby, in cement high pressure jet grouting technology, can reduce slurries and run off more than 50%, save priming cost more than 30%, and can finish antiseepage cement-grouting consolidation body of wall preferably, play prevention current infiltration purpose.In the engineering practical application, the cement slurry of this flocculation agent of admixture is compared with the Portland cement slurry, and it is doubly flat that viscosity improves 3-5, thereby anti-seepage effect is good.
5, practical value height, during practice of construction, make an addition to flocculation agent of the present invention in the cement grout after, utilize the high method to when the water conservancy project cofferdam body antiseepage grouting construction, can reduce slurries and run off, finish antiseepage cement-grouting consolidation body of wall, play prevention current infiltration purpose; Simultaneously, also can reduce construction cost, accelerating construction progress.
6, applied widely, because high spray jet grouting technology has obtained comparatively widespread use in China's based process and seepage control project, as: the foundation processing and the seepage control project of water conservancy project cofferdam body seepage control project, worker China Democratic National Construction Association engineering, the foundation processing that is used for subway engineering and seepage control project and river dike reinforcing and seepage control project etc., thereby the flocculation agent among the present invention also should be able to effectively be promoted suitable to above-mentioned engineering construction mutually, technology, economy and obvious social benefit can be applicable in the water conservancy and hydropower foundation treatment engineering.Simultaneously, flocculation agent of the present invention makes an addition to the height spray antiseepage grouting process and the construction quality requirement of the suitable different range of the formed mixed serum in back, varying environment in the cement grout, and the high that is suitable for (abbreviation high pressure jet grouting) method comprises jet grouting, pendulum sprinkling irrigation slurry and decides sprinkling irrigation slurry etc.
In sum, preparation process of the present invention is simple, cost is low and prepared product is easy to use, be easy to control, and the application in the construction of height spray jet grouting is succinct, facility and treatment effect are good, can effectively solve to adopt the plain cement slurries to carry out in the high spray antiseepage grouting existing leakage proof wall difficulty of construction to cause greatly, easily that a large amount of losses of cement grout, construction cost are big, construction speed waits practical problems slowly.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is preparation method's schema of flocculating agent for cement high pressure jet grouting of the present invention.
Fig. 2 is the application method schema of flocculating agent for cement high pressure jet grouting of the present invention.
Embodiment
A kind of flocculating agent for cement high pressure jet grouting of the present invention fully dissolves for adding water respectively earlier by konjak glucomannan, carbonate, rheological agent, dispersion agent and hardening accelerator, konjak glucomannan solution, carbonate solution, rheological agent solution, dispersant solution and the hardening accelerator solution stirring that will obtain after will fully dissolving then even mixed serum, more described mixed serum is distilled, pulverizing and spraying drying and the pulvis that sieves and make; Wherein, the weight ratio of described konjak glucomannan, carbonate, rheological agent, dispersion agent and hardening accelerator is 40 ± 5: 25 ± 3: 10 ± 2: 15 ± 2: 10 ± 2, described rheological agent, dispersion agent and hardening accelerator are rheological agent, dispersion agent and the hardening accelerator that is applicable to cement cementitious material, and the mass concentration of solid solute is 30% ± 5% in the described mixed serum.During actual processing and fabricating, also can adopt the water-soluble carbonate of other kind energy such as yellow soda ash, salt of wormwood, magnesiumcarbonate, and the optimum weight ratio of described konjak glucomannan, carbonate, rheological agent, dispersion agent and hardening accelerator is 40: 25: 10: 15: 10.
The preparation method of a kind of flocculating agent for cement high pressure jet grouting as shown in Figure 1 may further comprise the steps:
Step 1, raw material weighing and fully dissolving: earlier by design proportioning, weighing konjak glucomannan (KGM), carbonate, rheological agent, dispersion agent and five kinds of raw materials of hardening accelerator; After in five kinds of raw materials that weigh, adding water respectively again and fully dissolving, corresponding konjak glucomannan solution, carbonate solution, rheological agent solution, dispersant solution and the hardening accelerator solution of making;
Step 2, the preparation mixed serum: the konjak glucomannan solution described in the step 1, carbonate solution, rheological agent solution, dispersant solution and hardening accelerator solution are poured in the container simultaneously, stir mixed serum;
Step 3, distillation, pulverizing, spraying drying and sieve: will the mixed serum in the step 2 drop in the distil container and distill, the mass concentration of solid solute reaches at 50%～60% o'clock and stops distillation in described mixed serum, and makes compound; Again described compound is dropped into spray-drier and under 100 ℃～150 ℃ described compound carried out spraying drying, and make the mixing fine powders material; Subsequently, adopt pulverizer described mixing fine powders material to be pulverized and crossed 500 orders and make pulvis after with top sieve.
The application of a kind of flocculating agent for cement high pressure jet grouting as shown in Figure 2 may further comprise the steps:
Step I, volume are determined: mix the addition that the water cement ratio of making grout is determined flocculating agent for cement high pressure jet grouting according to need, the water cement ratio of wherein said grout is 0.5～1: 1, add flocculating agent for cement high pressure jet grouting and cement weight percent be 5～10%, and add flocculating agent for cement high pressure jet grouting and cement weight percent increase gradually with the increase of the water cement ratio of described grout;
Step II, preparation flocculation agent slurries: adopt the slurries stirrer that prepared flocculating agent for cement high pressure jet grouting and water are prepared by weight, constantly stir in the time of preparation, and get the flocculation agent slurries after stirring 1～2min;
Step II I, preparation high slurries: cement is added in the flocculation agent slurries of preparing in the Step II, constantly stir in the time of adding, and get the high slurries after stirring 1～2min;
Step IV, pulp and high: join by the grout outlet and the high machine of pipeline, and carry out high according to conventional high method with described slurries stirrer.And when actual fabrication and application flocculating agent for cement high pressure jet grouting, the water that is adopted is tap water.
Embodiment 1
In the present embodiment, during the preparation flocculating agent for cement high pressure jet grouting, weigh the 4.0kg konjak glucomannan respectively, 2.5kg yellow soda ash, 1.0kg rheological agent, 1.5kg dispersion agent and 1.0kg hardening accelerator earlier; Five kinds of raw materials that will weigh again and water (water yield that is added is determined according to the quality of five kinds of raw materials and solubleness separately respectively) drop into respectively and carry out thorough mixing in plastics, glass or the enamelled vessel and stir, above-mentioned five kinds of raw materials are fully dissolved, and make respective quality and abundant konjak glucomannan solution, carbonate solution, rheological agent solution, dispersant solution and the hardening accelerator solution after the dissolving respectively; Subsequently, described konjak glucomannan solution, carbonate solution, rheological agent solution, dispersant solution and hardening accelerator solution are dropped into respectively simultaneously again and fully stir acquisition mixed serum in back in plastics, glass or the enamelled vessel, the mass concentration of solid solute is 25% in the described mixed serum; At last, will be described mixed serum drop in the distil container and distill, the mass concentration of solid solute reaches at 50% o'clock and stops distillation in described mixed serum, and makes compound; Again described compound is dropped into spray-drier and under 100 ℃ described compound carried out spraying drying, and make the mixing fine powders material; Subsequently, adopt pulverizer described mixing fine powders material to be pulverized and crossed 500 orders and make the flocculating agent for cement high pressure jet grouting pulvis after with top sieve.
In the present embodiment, the hardening accelerator that is adopted is FN type concrete early strength agent, the dispersion agent that is adopted is dispersion agent NNO, the rheological agent that is adopted is an aluminium magensium silicate class rheological agent, in the actual fabrication process, also can select for use other kind to be applicable to rheological agent, dispersion agent and the hardening accelerator of cement cementitious material.
During the practical application flocculating agent for cement high pressure jet grouting, employing slurries stirrer makes the flocculation agent slurries after 0.5kg flocculating agent for cement high pressure jet grouting pulvis being mixed stirring 1～2min with 5.0kg water earlier; After in prepared flocculation agent slurries, adding 10.0kg cement mixing and stirring 1～2min again, make the high slurries; Join by the grout outlet and the high machine of pipeline subsequently, and carry out high according to conventional high method with described slurries stirrer.
Embodiment 2
In the present embodiment, during the preparation flocculating agent for cement high pressure jet grouting, as different from Example 1: weigh the 4.5kg konjak glucomannan respectively, 2.8kg yellow soda ash, 1.2kg rheological agent, 1.7kg dispersion agent and 1.2kg hardening accelerator earlier; Five kinds of raw materials that will weigh again and water (water yield that is added is determined according to the quality of five kinds of raw materials and solubleness separately respectively) drop into respectively and carry out thorough mixing in plastics, glass or the enamelled vessel and stir, above-mentioned five kinds of raw materials are fully dissolved, and make respective quality and abundant konjak glucomannan solution, carbonate solution, rheological agent solution, dispersant solution and the hardening accelerator solution after the dissolving respectively; Subsequently, described konjak glucomannan solution, carbonate solution, rheological agent solution, dispersant solution and hardening accelerator solution are dropped into respectively simultaneously again and fully stir acquisition mixed serum in back in plastics, glass or the enamelled vessel, the mass concentration of solid solute is 35% in the described mixed serum; At last, will be described mixed serum drop in the distil container and distill, the mass concentration of solid solute reaches at 60% o'clock and stops distillation in described mixed serum, and makes compound; Again described compound is dropped into spray-drier and under 150 ℃ described compound carried out spraying drying, and make the mixing fine powders material; Subsequently, adopt pulverizer described mixing fine powders material to be pulverized and crossed 500 orders and make the flocculating agent for cement high pressure jet grouting pulvis after with top sieve.
During the practical application flocculating agent for cement high pressure jet grouting, as different from Example 1: after adopting the slurries stirrer 1.0kg flocculating agent for cement high pressure jet grouting pulvis to be mixed stirring 1～2min with 10.0kg water earlier, make the flocculation agent slurries; After in prepared flocculation agent slurries, adding 10.0kg cement mixing and stirring 1～2min again, make the high slurries; Join by the grout outlet and the high machine of pipeline subsequently, and carry out high according to conventional high method with described slurries stirrer.
Embodiment 3
In the present embodiment, during the preparation flocculating agent for cement high pressure jet grouting, as different from Example 1: weigh the 3.5kg konjak glucomannan respectively, 2.2kg yellow soda ash, 0.8kg rheological agent, 1.3kg dispersion agent and 0.8kg hardening accelerator earlier; Again respectively according to the solubleness of konjak glucomannan, carbonate, rheological agent, dispersion agent and five kinds of raw materials of hardening accelerator, determine fully dissolving 3.5kg konjak glucomannan, 2.2kg yellow soda ash, 0.8kg rheological agent, 1.3kg when dispersion agent and 0.8kg hardening accelerator, the water yield that need add separately; Five kinds of raw materials that will weigh again and water (water yield that is added is determined according to the quality of five kinds of raw materials and solubleness separately respectively) drop into respectively and carry out thorough mixing in plastics, glass or the enamelled vessel and stir, above-mentioned five kinds of raw materials are fully dissolved, and make respective quality and abundant konjak glucomannan solution, carbonate solution, rheological agent solution, dispersant solution and the hardening accelerator solution after the dissolving respectively; Subsequently, described konjak glucomannan solution, carbonate solution, rheological agent solution, dispersant solution and hardening accelerator solution are dropped into respectively simultaneously again and fully stir acquisition mixed serum in back in plastics, glass or the enamelled vessel, the mass concentration of solid solute is 28% in the described mixed serum; At last, will be described mixed serum drop in the distil container and distill, the mass concentration of solid solute reaches at 52% o'clock and stops distillation in described mixed serum, and makes compound; Again described compound is dropped into spray-drier and under 110 ℃ described compound carried out spraying drying, and make the mixing fine powders material; Subsequently, adopt pulverizer described mixing fine powders material to be pulverized and crossed 500 orders and make the flocculating agent for cement high pressure jet grouting pulvis after with top sieve.
During the practical application flocculating agent for cement high pressure jet grouting, as different from Example 1: after adopting cement mixer 0.6kg flocculating agent for cement high pressure jet grouting pulvis to be mixed stirring 1～2min with 6.0kg water earlier, make the flocculation agent slurries; After in prepared flocculation agent slurries, adding 10.0kg cement mixing and stirring 1～2min again, make the high slurries; Join by the grout outlet and the high machine of pipeline subsequently, and carry out high according to conventional high method with described slurries stirrer.
Embodiment 4
In the present embodiment, during the preparation flocculating agent for cement high pressure jet grouting, as different from Example 1: weigh the 3.8kg konjak glucomannan respectively, 2.4kg yellow soda ash, 0.9kg rheological agent, 1.4kg dispersion agent and 0.9kg hardening accelerator earlier; Five kinds of raw materials that will weigh again and water (water yield that is added is determined according to the quality of five kinds of raw materials and solubleness separately respectively) drop into respectively and carry out thorough mixing in plastics, glass or the enamelled vessel and stir, above-mentioned five kinds of raw materials are fully dissolved, and make respective quality and abundant konjak glucomannan solution, carbonate solution, rheological agent solution, dispersant solution and the hardening accelerator solution after the dissolving respectively; Subsequently, described konjak glucomannan solution, carbonate solution, rheological agent solution, dispersant solution and hardening accelerator solution are dropped into respectively simultaneously again and fully stir acquisition mixed serum in back in plastics, glass or the enamelled vessel, the mass concentration of solid solute is 30% in the described mixed serum; At last, again will be described mixed serum drop in the distil container and distill, the mass concentration of solid solute reaches at 55% o'clock and stops distillation in described mixed serum, and makes compound; Again described compound is dropped into spray-drier and under 125 ℃ described compound carried out spraying drying, and make the mixing fine powders material; Subsequently, adopt pulverizer described mixing fine powders material to be pulverized and crossed 500 orders and make the flocculating agent for cement high pressure jet grouting pulvis after with top sieve.
Again mixed serum is poured in the distil container after reacting, distilling blocks of solid, again blocks of solid is pulverized and is crossed 500 orders and make the flocculating agent for cement high pressure jet grouting pulvis after with top sieve.
During the practical application flocculating agent for cement high pressure jet grouting, as different from Example 1: after adopting the slurries stirrer 0.7kg flocculating agent for cement high pressure jet grouting pulvis to be mixed stirring 1～2min with 7.0kg water earlier, make the flocculation agent slurries; After in prepared flocculation agent slurries, adding 10.0kg cement mixing and stirring 1～2min again, make the high slurries; Join by the grout outlet and the high machine of pipeline subsequently, and carry out high according to conventional high method with described slurries stirrer.
Embodiment 5
In the present embodiment, during the preparation flocculating agent for cement high pressure jet grouting, as different from Example 1: weigh the 4.2kg konjak glucomannan respectively, 2.7kg yellow soda ash, 1.1kg rheological agent, 1.6kg dispersion agent and 1.1kg hardening accelerator earlier; Five kinds of raw materials that will weigh again and water (water yield that is added is determined according to the quality of five kinds of raw materials and solubleness separately respectively) drop into respectively and carry out thorough mixing in plastics, glass or the enamelled vessel and stir, above-mentioned five kinds of raw materials are fully dissolved, and make respective quality and abundant konjak glucomannan solution, carbonate solution, rheological agent solution, dispersant solution and the hardening accelerator solution after the dissolving respectively; Subsequently, described konjak glucomannan solution, carbonate solution, rheological agent solution, dispersant solution and hardening accelerator solution are dropped into respectively simultaneously again and fully stir acquisition mixed serum in back in plastics, glass or the enamelled vessel, the mass concentration of solid solute is 32% in the described mixed serum; At last, will be described mixed serum drop in the distil container and distill, the mass concentration of solid solute reaches at 58% o'clock and stops distillation in described mixed serum, and makes compound; Again described compound is dropped into spray-drier and under 140 ℃ described compound carried out spraying drying, and make the mixing fine powders material; Subsequently, adopt pulverizer described mixing fine powders material to be pulverized and crossed 500 orders and make the flocculating agent for cement high pressure jet grouting pulvis after with top sieve.
During the practical application flocculating agent for cement high pressure jet grouting, as different from Example 1: after adopting the slurries stirrer 0.9kg flocculating agent for cement high pressure jet grouting pulvis to be mixed stirring 1～2min with 9.0kg water earlier, make the flocculation agent slurries; After in prepared flocculation agent slurries, adding 10.0kg cement mixing and stirring 1～2min again, make the high slurries; Join by the grout outlet and the high machine of pipeline subsequently, and carry out high according to conventional high method with described slurries stirrer.
The above; it only is preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, everyly any simple modification that above embodiment did, change and equivalent structure changed, all still belong in the protection domain of technical solution of the present invention according to the technology of the present invention essence.
Claims (8)
1. flocculating agent for cement high pressure jet grouting, it is characterized in that: described flocculation agent fully dissolves for adding water respectively earlier by konjak glucomannan, carbonate, rheological agent, dispersion agent and hardening accelerator, konjak glucomannan solution, carbonate solution, rheological agent solution, dispersant solution and the hardening accelerator solution stirring that will obtain after will fully dissolving then even mixed serum, more described mixed serum is distilled, pulverizing and spraying drying and the pulvis that sieves and make; Wherein, the weight ratio of described konjak glucomannan, carbonate, rheological agent, dispersion agent and hardening accelerator is 40 ± 5: 25 ± 3: 10 ± 2: 15 ± 2: 10 ± 2, described rheological agent, dispersion agent and hardening accelerator are rheological agent, dispersion agent and the hardening accelerator that is applicable to cement cementitious material, and the mass concentration of solid solute is 30% ± 5% in the described mixed serum.
2. according to the described flocculating agent for cement high pressure jet grouting of claim 1, it is characterized in that: described carbonate is yellow soda ash.
3. according to the described flocculating agent for cement high pressure jet grouting of claim 1, it is characterized in that: the weight ratio of described konjak glucomannan, carbonate, rheological agent, dispersion agent and hardening accelerator is 40: 25: 10: 15: 10.
4. according to the described flocculating agent for cement high pressure jet grouting of claim 1, it is characterized in that: described hardening accelerator is FN type concrete early strength agent, and described dispersion agent is dispersion agent NNO, and described rheological agent is an aluminium magensium silicate class rheological agent.
5. one kind prepares the method for flocculating agent for cement high pressure jet grouting according to claim 1, it is characterized in that this method may further comprise the steps:
Step 1, raw material weighing and fully dissolving: earlier by design proportioning, weighing konjak glucomannan, carbonate, rheological agent, dispersion agent and five kinds of raw materials of hardening accelerator; After in five kinds of raw materials that weigh, adding water respectively again and fully dissolving, corresponding konjak glucomannan solution, carbonate solution, rheological agent solution, dispersant solution and the hardening accelerator solution of making;
Step 2, the preparation mixed serum: the konjak glucomannan solution described in the step 1, carbonate solution, rheological agent solution, dispersant solution and hardening accelerator solution are poured in the container simultaneously, stir mixed serum;
Step 3, distillation, pulverizing, spraying drying and sieve: will the mixed serum in the step 2 drop in the distil container and distill, the mass concentration of solid solute reaches at 50%～60% o'clock and stops distillation in described mixed serum, and makes compound; Again described compound is dropped into spray-drier and under 100 ℃～150 ℃ described compound carried out spraying drying, and make the mixing fine powders material; Subsequently, adopt pulverizer described mixing fine powders material to be pulverized and crossed 500 orders and make pulvis after with top sieve.
6. according to the preparation method of the described flocculating agent for cement high pressure jet grouting of claim 5, it is characterized in that: the container described in the step 1 neutralization procedure two is plastics, glass or enamelled vessel.
7. application of flocculating agent for cement high pressure jet grouting according to claim 1 is characterized in that may further comprise the steps:
Step I, volume are determined: mix the addition that the water cement ratio of making grout is determined flocculating agent for cement high pressure jet grouting according to need, the water cement ratio of wherein said grout is 0.5～1: 1, add flocculating agent for cement high pressure jet grouting and cement weight percent be 5～10%, and add flocculating agent for cement high pressure jet grouting and cement weight percent increase gradually with the increase of the water cement ratio of described grout;
Step II, preparation flocculation agent slurries: adopt the slurries stirrer that prepared flocculating agent for cement high pressure jet grouting and water are prepared by weight, constantly stir in the time of preparation, and get the flocculation agent slurries after stirring 1～2min;
Step II I, preparation high slurries: cement is added in the flocculation agent slurries of preparing in the Step II, constantly stir in the time of adding, and get the high slurries after stirring 1～2min;
Step IV, pulp and high: join by the grout outlet and the high machine of pipeline, and carry out high according to conventional high method with described slurries stirrer.
8. according to the application of the described flocculating agent for cement high pressure jet grouting of claim 7, it is characterized in that: the slurries stirrer described in the Step II is a cement mixer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010204951A CN101891413B (en) | 2010-06-18 | 2010-06-18 | Flocculating agent for cement high pressure jet grouting and preparation method and application thereof |
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| CN201010204951A CN101891413B (en) | 2010-06-18 | 2010-06-18 | Flocculating agent for cement high pressure jet grouting and preparation method and application thereof |
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| CN101891413B CN101891413B (en) | 2012-10-03 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746866A (en) * | 2015-11-20 | 2017-05-31 | 衡阳市银利实业有限公司 | High-strength concrete underwater casting anti-dispersant |
| CN110054434A (en) * | 2019-06-05 | 2019-07-26 | 杭州中齐新材料科技有限公司 | A kind of non-dispersible underwater concrete flocculant |
| CN111732390A (en) * | 2020-08-09 | 2020-10-02 | 中建西部建设贵州有限公司 | Non-dispersed machine-made sand self-compacting concrete for underwater pile foundation and preparation method thereof |
| CN114751672A (en) * | 2022-04-11 | 2022-07-15 | 中建西部建设湖南有限公司 | Concrete underwater non-dispersant, preparation method and application thereof |
| CN114773022A (en) * | 2022-03-14 | 2022-07-22 | 中铁隧道集团二处有限公司 | High-efficiency water-dispersion-resistant synchronous grouting slurry and preparation method thereof |
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| US5997633A (en) * | 1994-07-29 | 1999-12-07 | Fritz Industries, Inc | Composition for and method of pumping concrete |
| CN1559960A (en) * | 2004-02-17 | 2005-01-05 | 江苏博特新材料有限公司 | High performance grouting addition for concrete with post-tensioning binding prestressing force |
| CN1709821A (en) * | 2005-06-08 | 2005-12-21 | 张振秋 | Cement-base dual-liquid slip-casting material |
| CN1911850A (en) * | 2005-08-11 | 2007-02-14 | 中国石油天然气集团公司 | Modified methyl cellulose flocculant for underwater grouting and its manufacturing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5997633A (en) * | 1994-07-29 | 1999-12-07 | Fritz Industries, Inc | Composition for and method of pumping concrete |
| CN1559960A (en) * | 2004-02-17 | 2005-01-05 | 江苏博特新材料有限公司 | High performance grouting addition for concrete with post-tensioning binding prestressing force |
| CN1709821A (en) * | 2005-06-08 | 2005-12-21 | 张振秋 | Cement-base dual-liquid slip-casting material |
| CN1911850A (en) * | 2005-08-11 | 2007-02-14 | 中国石油天然气集团公司 | Modified methyl cellulose flocculant for underwater grouting and its manufacturing method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746866A (en) * | 2015-11-20 | 2017-05-31 | 衡阳市银利实业有限公司 | High-strength concrete underwater casting anti-dispersant |
| CN110054434A (en) * | 2019-06-05 | 2019-07-26 | 杭州中齐新材料科技有限公司 | A kind of non-dispersible underwater concrete flocculant |
| CN111732390A (en) * | 2020-08-09 | 2020-10-02 | 中建西部建设贵州有限公司 | Non-dispersed machine-made sand self-compacting concrete for underwater pile foundation and preparation method thereof |
| CN114773022A (en) * | 2022-03-14 | 2022-07-22 | 中铁隧道集团二处有限公司 | High-efficiency water-dispersion-resistant synchronous grouting slurry and preparation method thereof |
| CN114751672A (en) * | 2022-04-11 | 2022-07-15 | 中建西部建设湖南有限公司 | Concrete underwater non-dispersant, preparation method and application thereof |
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| Publication number | Publication date |
|---|---|
| CN101891413B (en) | 2012-10-03 |
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