CN105503055A - High-performance shield grouting material and preparation method thereof - Google Patents
High-performance shield grouting material and preparation method thereof Download PDFInfo
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- CN105503055A CN105503055A CN201511018349.9A CN201511018349A CN105503055A CN 105503055 A CN105503055 A CN 105503055A CN 201511018349 A CN201511018349 A CN 201511018349A CN 105503055 A CN105503055 A CN 105503055A
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- water
- grouting material
- powder
- shield grouting
- performance shield
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Classifications
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- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00146—Sprayable or pumpable mixtures
Abstract
The invention discloses a high-performance shield grouting material and a preparation method thereof, belonging to the technical field of building materials and aiming to solve the problems that existing single liquid type hardenable shield grouting materials have long setting time, lower consolidation body strength, higher bleeding rates and single performances and the expansion degree and gradual loss thereof are difficult to effectively control. The high-performance shield grouting material comprises powder, yellow sand, a hydration control factor, a water reducing agent and water, wherein the powder comprises strength factors, a stabilizer and a waterproof agent; and the high-performance shield grouting material is obtained through reaction of the powder, the yellow sand, the hydration control factor, the water reducing agent and water under the normal temperature condition according to a certain proportion. The high-performance shield grouting material and the preparation method thereof have the advantages that the high-performance shield grouting material has high solid strength, good stability and low bleeding rate; interval control can be carried out on the 1d compressive strength, 28d compressive strength, bleeding rate, setting time and expansion degree index at the same time, so that the actual engineering requirements can be met; the preparation method of the high-performance shield grouting material is simple and convenient, can be carried out under normal temperature, has the effects of saving cost and energy and reducing consumption and has better popularizing value.
Description
Technical field
The present invention relates to building material technical field, be specifically related to a kind of high-performance shield grouting material and preparation method thereof.
Background technology
Shielded construction injecting paste material can be divided into two-pack type injecting paste material, single-liquid type inertia injecting paste material and single-liquid type hardening capacity injecting paste material three class substantially.Two-pack type injecting paste material just entered plasticity-concretion state through tens seconds, must have higher grouting pressure that it just can be made to keep the mobility of for some time, and grouting process is complicated, easily cause Grouting Pipe plugging and filling incomplete phenomena, and price is relatively costly; Single-liquid type inertia injecting paste material is long for time of coagulation, and early stage later strength is not high, the situation of leaking to excavation face and running off in the soil body easily occurs, and is easily diluted by the mud of altering after underground water and excavation face, is difficult to constraint section of jurisdiction and controls formation displacement; Single-liquid type hardening capacity injecting paste material cost is general, and performance plasticity-is strong, and is easy to control building settlement and construction management, therefore, in shield structure engineering, has good application development prospect.
At present; domestic and international existing single-liquid type hardening capacity injecting paste material ubiquity time of coagulation is partially long, concretion body strength is on the low side, bleeding rate is higher, divergence and gradual loss thereof are difficult to the shortcomings such as effectively control; and this injecting paste material often only possesses a certain single material property, is difficult to take into account the material property of multinomial excellence simultaneously, the linear and ground settlement of mortar depositing construction difficulty, shield structure is finally caused to be difficult to numerous engineering problem such as control, section of jurisdiction protective layer insufficient strength.Therefore, need a kind of concretion body strength badly high, good stability, the shield grouting material that bleeding rate is lower, to meet shielded construction requirement.The information being disclosed in this background technology part is only intended to increase the understanding to general background of the present invention, and should not be considered as admitting or imply in any form that this information is the known prior aries of persons skilled in the art.
Summary of the invention
The object of the present invention is to provide a kind of high-performance shield grouting material and preparation method thereof, the problems such as long to solve the existing single-liquid type hardening capacity shield grouting condensation of materials time, concretion body strength is on the low side, bleeding rate is higher, divergence and gradual loss thereof are difficult to effectively to control and performance is single.
To achieve these goals, technical scheme of the present invention is:
A kind of high-performance shield grouting material, comprising: powder, yellow ground, aquation controlling elements, water reducer and water, described powder comprises intensity factor, stablizer and water-resisting agent; Its proportioning (mass ratio) is as follows:
Water: powder is 0.35 ~ 0.60:1; Powder: yellow ground is 0.30 ~ 0.60:1; Aquation controlling elements: intensity factor is 0.01% ~ 0.30%:1; Water reducer: intensity factor is 0.1% ~ 2.0%:1.
Further, described intensity factor is at least one in cement, flyash and lime.
Further, described aquation controlling elements are Sunmorl N 60S.
Further, described water reducer is naphthalene water reducer or polycarboxylic acids dehydragent or polyurethanes water reducer.
Further, described stablizer is wilkinite or Xylo-Mucine.
High-performance shield grouting material, comprises cement, flyash, wilkinite, Sunmorl N 60S, naphthalene water reducer, yellow ground and water, and wherein powder comprises cement, flyash and wilkinite; The proportioning (mass ratio) of each composition is:
Water: powder is 0.60:1; Powder: yellow ground is 0.42:1; Sunmorl N 60S is mixed than being 0.04%:1; Water reducer is mixed than being 0.70%.
High-performance shield grouting material, comprises cement, flyash, wilkinite, Sunmorl N 60S, naphthalene water reducer, yellow ground and water, and wherein powder comprises cement, flyash and wilkinite; The proportioning (mass ratio) of each composition is:
Water: powder is 0.50:1; Powder: yellow ground is 0.50:1; Sunmorl N 60S is mixed than being 0.08%:1; Water reducer is mixed than being 1.20%.
High-performance shield grouting material, comprises cement, flyash, wilkinite, Sunmorl N 60S, naphthalene water reducer, yellow ground and water, and wherein powder comprises cement, flyash and wilkinite; The proportioning (mass ratio) of each composition is:
Water: powder is 0.45:1; Powder: yellow ground is 0.30:1; Sunmorl N 60S is mixed than being 0.30%:1; Water reducer is mixed than being 0.1%.
High-performance shield grouting material, comprises cement, flyash, wilkinite, Sunmorl N 60S, naphthalene water reducer, yellow ground and water, and wherein powder comprises cement, flyash and wilkinite; The proportioning (mass ratio) of each composition is:
Water: powder is 0.35:1; Powder: yellow ground is 0.60:1; Sunmorl N 60S is mixed than being 0.01%:1; Water reducer is mixed than being 2.0%.
The preparation method of high-performance shield grouting material, comprises the steps:
Step one, for subsequent use according to each component of proportioning precise;
Step 2, intensity factor and stablizer are stirred for subsequent use;
Step 3, in water reducer, add aquation controlling elements, and it is for subsequent use to stir;
Step 4, add in stirrer 90% water, and start stirrer; Add the intensity factor and stablizer that stir in step 2, and stir 3min;
Step 5, in stirrer, add the water of yellow ground and remaining 10%, and stir 2min; Add the aquation controlling elements and water reducer that stir in step 3, and stir 5min, complete the preparation of described high-performance shield grouting material.
Compared with prior art, tool of the present invention has the following advantages and beneficial effect:
The invention provides a kind of high-performance shield grouting material, comprise powder (described powder comprises intensity factor, stablizer and water-resisting agent), yellow ground, aquation controlling elements, water reducer and water and be obtained by reacting under normal temperature condition according to certain ratio.Compared with existing single-liquid type shield grouting material, high-performance shield grouting material has the following advantages: this high-performance shield grouting material solid intensity is high, good stability, and bleeding rate is low; And can simultaneously to 1 day ultimate compression strength, 28 days ultimate compression strength, bleeding rate, time of coagulation and divergence index carry out range restraint, can meet actual requirement of engineering.Specifically, within 1 day, ultimate compression strength freely can control in 0.01 ~ 3.0MPa interval, and within 28 days, ultimate compression strength freely can control in 0.3 ~ 15.0MPa interval; Good stability, bleeding rate are lower than 1%; Time of coagulation freely can control in 8 ~ 48h interval; Pump-conveying property is excellent, divergence freely can control in 180 ~ 280mm interval and gradual loss is little.The problems such as it is long that this high-performance shield grouting material solves the existing single-liquid type hardening capacity shield grouting condensation of materials time, and concretion body strength is on the low side, bleeding rate is higher, divergence and gradual loss thereof are difficult to effectively to control and performance is single.And the making method of high-performance shield grouting material of the present invention is easy, can carry out at normal temperatures, save cost, energy-saving and cost-reducing, there is good promotional value.
Embodiment
Below in conjunction with specific embodiment, high-performance shield grouting material of the present invention and preparation method thereof is described in further detail.According to the following describes, advantages and features of the invention will be clearer.
High-performance shield grouting material of the present invention, comprise powder, yellow ground, aquation controlling elements, water reducer and water, described powder comprises intensity factor, stablizer and water-resisting agent; Intensity factor comprises at least one in cement, flyash and lime; Stablizer selects wilkinite or Xylo-Mucine
(CMC); Water-resisting agent also can select wilkinite; Aquation controlling elements select sodium gluconate solution; Water reducer selects naphthalene water reducer, polycarboxylic acids dehydragent or polyurethanes water reducer.
In the embodiment of the present invention, cement is PO42.5; Flyash is I level flyash, the preferred sodium bentonite of wilkinite; Yellow ground is the nature medium sand that fineness modulus is greater than 2.6, and preferred fineness modulus is the river sand of 2.8; Water is ordinary tap water.In preparation process, water adds at twice, adds when being premixing wilkinite for the first time, adds during normal this high-performance of the mix shield grouting material of second time.
During test, the ultimate compression strength of high-performance shield grouting material tested by high-performance shield grouting material prepared by the embodiment of the present invention with reference to the method in " standard for test methods of mechanical properties of ordinary concrete " (GB/T50081-2002), with reference to bleeding rate, time of coagulation and the divergence of the method test high-performance shield grouting material in " Standard for test methods of properties of ordinary concrete mixture standard " (GB/T50080-2002).
Embodiment 1
High-performance shield grouting material, comprises cement, flyash, wilkinite, Sunmorl N 60S, naphthalene water reducer, yellow ground and water, and wherein, powder comprises cement, flyash and wilkinite, and the proportioning (mass ratio) of each composition is:
Water: powder is 0.60:1; Powder: yellow ground is 0.42:1; Sunmorl N 60S is mixed than being 0.04%:1; Water reducer is mixed than being 0.70%.
Preparation method:
Prepare high-performance shield grouting material according to above-mentioned proportioning, comprise the steps:
Step one, for subsequent use according to each component of proportioning precise;
Step 2, intensity factor and stablizer are stirred for subsequent use;
Step 3, in water reducer, add aquation controlling elements, and it is for subsequent use to stir;
Step 4, add in stirrer 90% water, and start stirrer; Add the intensity factor and stablizer that stir in step 2, and stir 3min;
Step 5, in stirrer, add the water of yellow ground and remaining 10%, and stir 2min; Add the aquation controlling elements and water reducer that stir in step 3, and stir 5min, complete the preparation of described high-performance shield grouting material.
After tested, the performance of obtained according to the method described above high-performance shield grouting material is as follows:
1 day ultimate compression strength is 0.23MPa, and 28 days ultimate compression strength is 3.00MPa; Good stability, bleeding rate is 0.54%; Time of coagulation is 22h (hour); Pump-conveying property is excellent, divergence is 275mm, and after 1h, divergence can reach 270mm.Wherein, within 1 day and 28 days, concrete curing time is referred to, i.e. the age of concrete.
Embodiment 2
High-performance shield grouting material, comprises cement, flyash, wilkinite, Sunmorl N 60S, naphthalene water reducer, yellow ground and water, and wherein, powder comprises cement, flyash and wilkinite, and the proportioning (mass ratio) of each composition is:
Water: powder is 0.50:1; Powder: yellow ground is 0.50:1; Sunmorl N 60S is mixed than being 0.08%:1; Water reducer is mixed than being 1.20%.
Identical with embodiment 1 according to the method for the high-performance shield grouting material of embodiment 2 formula preparation, repeat no more herein.
After tested, as follows according to the performance of the obtained high-performance shield grouting material of embodiment 2:
1 day ultimate compression strength is 2.07MPa, and 28 days ultimate compression strength is 12.30MPa; Good stability, bleeding rate is 0.05%; Time of coagulation is 15h; Pump-conveying property is excellent, divergence is 230mm; And divergence can reach 216mm after 1h.
Embodiment 3
High-performance shield grouting material, comprise cement, flyash, wilkinite, Sunmorl N 60S, naphthalene water reducer, yellow ground and water, wherein, powder comprises cement, flyash and wilkinite, and the proportioning (mass ratio) of each composition is: 0.45:1; Powder: yellow ground is 0.30:1; Sunmorl N 60S is mixed than being 0.30%:1; Water reducer is mixed than being 0.10%.
The method of the high-performance shield grouting material prepared according to the formula of embodiment 3 is identical with embodiment 1, repeats no more herein.
After tested, as follows according to the performance of the obtained high-performance shield grouting material of embodiment 3:
1 day ultimate compression strength is 0.18MPa, and 28 days ultimate compression strength is 2.70MPa; Good stability, bleeding rate is 0.70%; Time of coagulation is 26h; Pump-conveying property is excellent, divergence is 190mm, and after 1h, divergence can reach 180mm.
Embodiment 4
High-performance shield grouting material, comprises cement, flyash, wilkinite, Sunmorl N 60S, naphthalene water reducer, yellow ground and water, and wherein, powder comprises cement, flyash and wilkinite, and the proportioning (mass ratio) of each composition is: 0.351; Powder: yellow ground is 0.60:1; Sunmorl N 60S is mixed than being 0.01%:1; Water reducer is mixed than being 2.00%.
The method of the high-performance shield grouting material prepared according to the formula of embodiment 4 is identical with embodiment 1, repeats no more herein.
After tested, as follows according to the performance of the obtained high-performance shield grouting material of embodiment 4:
1 day ultimate compression strength is 2.67MPa, and 28 days ultimate compression strength is 14.80MPa; Good stability, bleeding rate is 0.01%; Time of coagulation is 8h; Pump-conveying property is excellent, divergence is 205mm, and after 1h, divergence can reach 190mm.
In sum, compared with existing single-liquid type shield grouting material, high-performance shield grouting material provided by the invention has the following advantages: this high-performance shield grouting material solid intensity is high, good stability, and bleeding rate is low; And can simultaneously to 1 day ultimate compression strength, 28 days ultimate compression strength, bleeding rate, time of coagulation and divergence index carry out range restraint, can meet actual requirement of engineering.Specifically, within 1 day, ultimate compression strength freely can control in 0.01 ~ 3.0MPa interval, and within 28 days, ultimate compression strength freely can control in 0.3 ~ 15.0MPa interval; Good stability, bleeding rate are lower than 1%; Time of coagulation freely can control in 8 ~ 48h interval; Pump-conveying property is excellent, divergence freely can control in 180 ~ 280mm interval and gradual loss is little.The making method of high-performance shield grouting material of the present invention is easy, can carry out at normal temperatures, saves cost, energy-saving and cost-reducing, has good promotional value.
Foregoing description is only the description to present pre-ferred embodiments, any restriction not to the scope of the invention.Any change that those skilled in the art does according to above-mentioned disclosure, modification, all belong to the protection domain of claim.
Claims (10)
1. a high-performance shield grouting material, is characterized in that, comprising: powder, yellow ground, aquation controlling elements, water reducer and water, and described powder comprises intensity factor, stablizer and water-resisting agent; Its proportioning (mass ratio) is as follows:
Water: powder is 0.35 ~ 0.60:1; Powder: yellow ground is 0.30 ~ 0.60:1; Aquation controlling elements: intensity factor is 0.01% ~ 0.30%:1; Water reducer: intensity factor is 0.1% ~ 2.0%:1.
2. high-performance shield grouting material according to claim 1, is characterized in that, described intensity factor is at least one in cement, flyash and lime.
3. high-performance shield grouting material according to claim 1, is characterized in that, described aquation controlling elements are Sunmorl N 60S.
4. high-performance shield grouting material according to claim 1, is characterized in that, described water reducer is naphthalene water reducer or polycarboxylic acids dehydragent or polyurethanes water reducer.
5. high-performance shield grouting material according to claim 1, is characterized in that, described stablizer is wilkinite or Xylo-Mucine.
6. the high-performance shield grouting material according to any one of claim 1 to 5, is characterized in that, comprise cement, flyash, wilkinite, Sunmorl N 60S, naphthalene water reducer, yellow ground and water, wherein powder comprises cement, flyash and wilkinite; The proportioning (mass ratio) of each composition is:
Water: powder is 0.60:1; Powder: yellow ground is 0.42:1; Sunmorl N 60S is mixed than being 0.04%:1; Water reducer is mixed than being 0.70%.
7. the high-performance shield grouting material according to any one of claim 1 to 5, is characterized in that, comprise cement, flyash, wilkinite, Sunmorl N 60S, naphthalene water reducer, yellow ground and water, wherein powder comprises cement, flyash and wilkinite; The proportioning (mass ratio) of each composition is:
Water: powder is 0.50:1; Powder: yellow ground is 0.50:1; Sunmorl N 60S is mixed than being 0.08%:1; Water reducer is mixed than being 1.20%.
8. the high-performance shield grouting material according to any one of claim 1 to 5, is characterized in that, comprise cement, flyash, wilkinite, Sunmorl N 60S, naphthalene water reducer, yellow ground and water, wherein powder comprises cement, flyash and wilkinite; The proportioning (mass ratio) of each composition is:
Water: powder is 0.45:1; Powder: yellow ground is 0.30:1; Sunmorl N 60S is mixed than being 0.30%:1; Water reducer is mixed than being 0.1%.
9. the high-performance shield grouting material according to any one of claim 1 to 5, is characterized in that, comprise cement, flyash, wilkinite, Sunmorl N 60S, naphthalene water reducer, yellow ground and water, wherein powder comprises cement, flyash and wilkinite; The proportioning (mass ratio) of each composition is:
Water: powder is 0.35:1; Powder: yellow ground is 0.60:1; Sunmorl N 60S is mixed than being 0.01%:1; Water reducer is mixed than being 2.0%.
10. the preparation method of the high-performance shield grouting material according to any one of claim 1 to 9, is characterized in that, comprise the steps:
Step one, for subsequent use according to each component of proportioning precise;
Step 2, intensity factor and stablizer are stirred for subsequent use;
Step 3, in water reducer, add aquation controlling elements, and it is for subsequent use to stir;
Step 4, add in stirrer 90% water, and start stirrer; Add the intensity factor and stablizer that stir in step 2, and stir 3min;
Step 5, in stirrer, add the water of yellow ground and remaining 10%, and stir 2min; Add the aquation controlling elements and water reducer that stir in step 3, and stir 5min, complete the preparation of described high-performance shield grouting material.
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| CN201511018349.9A CN105503055A (en) | 2015-12-29 | 2015-12-29 | High-performance shield grouting material and preparation method thereof |
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| CN201511018349.9A CN105503055A (en) | 2015-12-29 | 2015-12-29 | High-performance shield grouting material and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105712647A (en) * | 2016-04-22 | 2016-06-29 | 江苏苏博特新材料股份有限公司 | Cement hydration regulation material and preparation method thereof |
| CN109503089A (en) * | 2019-01-07 | 2019-03-22 | 中铁十四局集团大盾构工程有限公司 | A kind of anti-water dispersion pulp liquid and preparation method thereof for shield synchronization slip casting |
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| WO2009015520A1 (en) * | 2007-08-02 | 2009-02-05 | Basf Construction Chemicals (Shanghai) Co. Ltd | Cement-based grout composition |
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| WO2009015520A1 (en) * | 2007-08-02 | 2009-02-05 | Basf Construction Chemicals (Shanghai) Co. Ltd | Cement-based grout composition |
| CN101269938A (en) * | 2008-04-29 | 2008-09-24 | 武汉理工大学 | Tunnel backing cloth slip casting material capable of preventing duct piece float upward and preparation method thereof |
| CN101921086A (en) * | 2009-06-12 | 2010-12-22 | 中冶建筑研究总院有限公司 | Cement-based ultra-high strength contraction-free grouting concrete |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105712647A (en) * | 2016-04-22 | 2016-06-29 | 江苏苏博特新材料股份有限公司 | Cement hydration regulation material and preparation method thereof |
| CN109503089A (en) * | 2019-01-07 | 2019-03-22 | 中铁十四局集团大盾构工程有限公司 | A kind of anti-water dispersion pulp liquid and preparation method thereof for shield synchronization slip casting |
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Application publication date: 20160420 |