CN103951345A - Cement-based grouting material applicable to narrow-space and long-distance grouting operation - Google Patents
Cement-based grouting material applicable to narrow-space and long-distance grouting operation Download PDFInfo
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- CN103951345A CN103951345A CN201410154035.0A CN201410154035A CN103951345A CN 103951345 A CN103951345 A CN 103951345A CN 201410154035 A CN201410154035 A CN 201410154035A CN 103951345 A CN103951345 A CN 103951345A
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Abstract
The invention relates to a cement-based grouting material applicable to narrow-space and long-distance grouting operation and a preparation method thereof. The cement-based grouting material applicable to narrow-space and long-distance grouting operation comprises the following materials in parts by weight: 100 parts of sand, 60-70 parts of cement, 20-40 parts of mineral admixture, 5-10 parts of expanding agent, 0.5-1 part of compound water reducer, 0.2-0.4 part of thixotropic anti-settling agent, and 0.1-0.3 part of defoaming agent. The cement-based grouting material disclosed by the invention has continuously expanded fluid ability and low viscosity, and flowing property simultaneously satisfies fluidity not less than 380mm of fluidity requirements of grouting materials I in GB/T50448-2008 and flow time not more than 35 seconds of ASTM-C939 flow time requirements, therefore, a more effective solution can be provided for narrow-space and long-distance grouting operation.
Description
Technical field
The present invention relates to a kind of cement-based grouting material that is applicable to narrow space and long distance grouting operation, compare with Portland cement base grouting material, it has concurrently and continues dilatant flow kinetic force and low viscosity performance.The invention still further relates to the preparation method of described cement-based grouting material.
Background technology
From the beginning of the nineties in last century, the cement-based grouting material that China's independent research is produced obtains successful Application first in Tianjin Seamless Steel tube Co., Ltd, cement-based grouting material is fast-developing, domestic have YB/T9261-98 < < cement-based grouting material operating technique rules > > in succession, JC/T986-2005 < < cement-based grouting material > >, the industry standards such as GB/T50448-2008 < < cement-based grouting material utilisation technology standard > > and national standard are put into effect.
Three standards are consistent to the testing method of cement-based grouting material flowing property, all adopt the maximum spread diameter of truncated cone circle modulus method test material slurry under deadweight as degree of mobilization.GB/T50448-2008 has the most at length carried out classifying and dividing, it has divided 300mm, 340mm, 380mm Three Estate by the cement-based grouting material of fine aggregate according to degree of mobilization size, and the cement-based grouting material that degree of mobilization is greater than 340mm and is greater than 380mm is mainly positioned the grouting operation of relative narrow space.Yet in practice of construction application, although a lot of injection material has very high degree of mobilization, in filling process, there is very large viscous resistance to exist, the carrying out of the operation that is unfavorable for being in the milk.Tracing it to its cause, be to reach high fluidity because these materials mainly rely on lasting dilatant flow kinetic force, but the viscosity of slurry is very large.Therefore, the degree of mobilization that truncated cone circle modulus method records is conducive to characterize the continuous flow kinetic force of cement-based grouting material, but has ignored the requirement to slurry viscosity.
U.S. ASTM-C939-2012 has proposed flow cone method (Flow Cone Method) cement-based grouting material of high workability energy has been tested, the material slurry of measuring certain volume flows out the needed time completely in the cone of regulation, and stipulates that this elution time must not be greater than 35s.Only have material slurry can reach the elution time so fast in the situation that viscosity is very low, therefore, the flow cone testing method of ASTM-C939-2012 has reflected the requirement to slurry viscosity more.
When cement-based grouting material possesses lasting dilatant flow kinetic force and low viscosity performance simultaneously, just can be applicable to better the grouting operation of narrow space and long distance.Be combined with the detection method of domestic and international two kinds of flowing propertys, the detection exploitation that can be the cement-based grouting material of this high workability energy provides basis.
Summary of the invention
Therefore, the object of the invention is to, a kind of cement-based grouting material that is applicable to narrow space and long distance grouting operation is provided, it has concurrently and continues dilatant flow kinetic force and low viscosity performance, specifically, flowing property meets I class injection material degree of mobilization requirement >=380mm and ASTM-C939 elution time requirement≤35s in GB/T50448-2008 simultaneously.
Another object of the present invention is to provide the above-mentioned preparation method who is applicable to the cement-based grouting material of narrow space and long distance grouting operation.
According to an aspect of the present invention, described in be applicable to the cement-based grouting material of narrow space and long distance grouting operation, by mass parts, its raw material packet contains:
In the present invention, described sand is artificial sand or the natural sand of 0.1～2.36mm grating;
Described cement is silicate cement, ordinary Portland cement or aluminosulfate cement;
Described mineral admixture is the above flyash of II level or slag powders more than S95 rank;
Described swelling agent is ettringite class swelling agent;
Described composite water-reducing agent is comprised of polycarboxylic ethers water reducer and melamine water reducing agent, the gross weight based on composite water-reducing agent wherein, and polycarboxylic ethers water reducer accounts for 20～30%, and melamine water reducing agent accounts for 70～80%; Wherein polycarboxylic ethers water reducer and melamine water reducing agent all can obtain in market purchase, and for example, polycarboxylic ethers water reducer and melamine water reducing agent all can be bought and obtain from BASF AG;
Described thixotroping anti-settling agent is comprised of attapulgite and hydroxypropyl methyl cellulose ether, and wherein, described attapulgite molecular formula is (Mg, Al, Fe)
5si
8o
20(HO)
2(OH
2)
44H
2o, fineness is 200～500 orders; Described hydroxypropyl methyl cellulose ether viscosity is lower than 20000mPas; Gross weight based on thixotroping anti-settling agent, attapulgite accounts for 90～95%, and hydroxypropyl methyl cellulose ether accounts for 5～10%;
Described defoamer is silicone antifoam agent or mineral oil antifoam agent.
According to a further aspect in the invention, the preparation method who is applicable to the cement-based grouting material of narrow space and long distance grouting operation of the present invention comprises: by mass parts, by in 100 parts, sand, 60～70 parts of cement, 20～40 parts of mineral admixtures, 5～10 parts of swelling agents, 0.5～1 part of composite water-reducing agent, 0.2～0.4 part of thixotroping anti-settling agent and 0.1～0.3 part of input mixing machine of defoamer, be evenly mixed to get dry blend; In use, to the water that adds dry blend total mass 15～17% in resulting dry blend, mix is even, makes the cement-based grouting material that is applicable to narrow space and long distance grouting operation.
The invention has the beneficial effects as follows: the cement-based grouting material that the present invention makes has concurrently and continues dilatant flow kinetic force and low viscosity performance, flowing property meets elution time≤35s that the degree of mobilization >=380mm of I class injection material degree of mobilization requirement in GB/T50448-2008 and ASTM-C939 elution time require simultaneously, can be narrow space and long distance grouting operation provides more efficiently solution.
Embodiment
Below, come in conjunction with specific embodiments that the present invention is described further, following each embodiment does not only limit the scope of the invention for illustrating the present invention.
In the following embodiments, degree of mobilization is measured with reference to the regulation of GB/T50448-2008, and the elution time is measured with reference to the regulation of ASTM-C939-2012.
Embodiment 1
The cement-based grouting material proportioning raw materials that is applicable to narrow space and long distance grouting operation is as follows:
Wherein, the gross weight of composite water-reducing agent based on this composite water-reducing agent, polycarboxylic ethers water reducer accounts for 20%, and melamine water reducing agent accounts for 80%;
The gross weight of thixotroping anti-settling agent based on this thixotroping anti-settling agent, attapulgite (fineness is 325 orders) accounts for 90%, and hydroxypropyl methyl cellulose ether (viscosity 15000mPas) accounts for 10%.
Preparation: above-mentioned each component is pressed to mass parts separately and drop in mixing machine, be evenly mixed to get dry blend; In use, to the water that adds dry blend total mass 17% in resulting dry blend, mix is even, makes the cement-based grouting material that is applicable to narrow space and long distance grouting operation.
The above-mentioned cement-based grouting material making is measured to degree of mobilization and elution time: degree of mobilization 405mm, elution time 31s.
Embodiment 2
The cement-based grouting material proportioning raw materials that is applicable to narrow space and long distance grouting operation is as follows:
Wherein, the gross weight of composite water-reducing agent based on this composite water-reducing agent, polycarboxylic ethers water reducer accounts for 30%, and melamine water reducing agent accounts for 70%;
The gross weight of thixotroping anti-settling agent based on this thixotroping anti-settling agent, attapulgite (fineness is 325 orders) accounts for 95%, and hydroxypropyl methyl cellulose ether (viscosity 15000mPas) accounts for 5%.
Preparation: above-mentioned each component is pressed to mass parts separately and drop in mixing machine, be evenly mixed to get dry blend; In use, to the water that adds dry blend total mass 16% in resulting dry blend, mix is even, makes the cement-based grouting material that is applicable to narrow space and long distance grouting operation.
The above-mentioned cement-based grouting material making is measured to degree of mobilization and elution time: degree of mobilization 410mm, elution time 29s.
Embodiment 3
The cement-based grouting material proportioning raw materials that is applicable to narrow space and long distance grouting operation is as follows:
Wherein, the gross weight of composite water-reducing agent based on this composite water-reducing agent, polycarboxylic ethers water reducer accounts for 30%, and melamine water reducing agent accounts for 70%;
The gross weight of thixotroping anti-settling agent based on this thixotroping anti-settling agent, attapulgite (fineness is 325 orders) accounts for 90%, and hydroxypropyl methyl cellulose ether (viscosity 15000mPas) accounts for 10%.
Preparation: above-mentioned each component is pressed to mass parts separately and drop in mixing machine, be evenly mixed to get dry blend; In use, to the water that adds dry blend total mass 15% in resulting dry blend, mix is even, makes the cement-based grouting material that is applicable to narrow space and long distance grouting operation.
The above-mentioned cement-based grouting material making is measured to degree of mobilization and elution time: degree of mobilization 390mm, elution time 32s.
Claims (9)
1. a cement-based grouting material that is applicable to narrow space and long distance grouting operation, by mass parts, its raw material packet contains:
2. cement-based grouting material according to claim 1, it is characterized in that, described composite water-reducing agent is comprised of polycarboxylic ethers water reducer and melamine water reducing agent, wherein the gross weight based on composite water-reducing agent, polycarboxylic ethers water reducer accounts for 20～30%, and melamine water reducing agent accounts for 70～80%.
3. cement-based grouting material according to claim 1 and 2, it is characterized in that, described thixotroping anti-settling agent is comprised of attapulgite and hydroxypropyl methyl cellulose ether, wherein the gross weight based on thixotroping anti-settling agent, attapulgite accounts for 90～95%, and hydroxypropyl methyl cellulose ether accounts for 5～10%.
4. cement-based grouting material according to claim 3, is characterized in that, described attapulgite molecular formula is (Mg, Al, Fe)
5si
8o
20(HO)
2(OH
2)
44H
2o, fineness is 200～500 orders; Described hydroxypropyl methyl cellulose ether viscosity is lower than 20000mPas.
5. according to the cement-based grouting material described in any one in claim 1 to 4, it is characterized in that, described sand is artificial sand or the natural sand of 0.1～2.36mm grating.
6. according to the cement-based grouting material described in any one in claim 1 to 4, it is characterized in that, described cement is silicate cement, ordinary Portland cement or aluminosulfate cement.
7. according to the cement-based grouting material described in any one in claim 1 to 4, it is characterized in that, described mineral admixture is the above flyash of II level or slag powders more than S95 rank.
8. according to the cement-based grouting material described in any one in claim 1 to 4, it is characterized in that, described swelling agent is ettringite class swelling agent.
9. in a claim 1 to 8, the preparation method of the cement-based grouting material that is applicable to narrow space and long distance grouting operation described in any one comprises: by mass parts, by in 100 parts, sand, 60～70 parts of cement, 20～40 parts of mineral admixtures, 5～10 parts of swelling agents, 0.5～1 part of composite water-reducing agent, 0.2～0.4 part of thixotroping anti-settling agent and 0.1～0.3 part of input mixing machine of defoamer, be evenly mixed to get dry blend; In use, to the water that adds dry blend total mass 15～17% in resulting dry blend, mix is even, makes the cement-based grouting material that is applicable to narrow space and long distance grouting operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410154035.0A CN103951345B (en) | 2014-04-17 | 2014-04-17 | Be applicable to the cement-based grouting material of narrow space and long distance cementing operations |
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| CN201410154035.0A CN103951345B (en) | 2014-04-17 | 2014-04-17 | Be applicable to the cement-based grouting material of narrow space and long distance cementing operations |
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| CN103951345B CN103951345B (en) | 2015-10-28 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107352870A (en) * | 2017-07-28 | 2017-11-17 | 玉林诺赞建材有限公司 | A kind of strength cement-based grouting material |
| CN108424065A (en) * | 2017-07-13 | 2018-08-21 | 上海城建建设实业集团新型建筑材料有限公司 | A kind of slurry and its preparation method and application |
| CN109665787A (en) * | 2019-02-28 | 2019-04-23 | 陈辉 | A kind of manufacturing method of construction wall grouting material |
| CN111410494A (en) * | 2020-04-22 | 2020-07-14 | 成都理工博大工程科技有限公司 | Underwater non-dispersive rapid-hardening grouting leak-stopping composite material and preparation method thereof |
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| JP2002285152A (en) * | 2001-03-26 | 2002-10-03 | Mitsubishi Materials Corp | Premix type low viscous pc grout material |
| CN101348336A (en) * | 2008-09-03 | 2009-01-21 | 东南大学 | Composite type special cement for ready-mixed mortar |
| 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 |
| CN102690092A (en) * | 2012-06-04 | 2012-09-26 | 同济大学 | Low-temperature rice hull ash doped cement-base shrinkage-free grouting material and using method thereof |
| CN102850026A (en) * | 2012-09-24 | 2013-01-02 | 上海宝冶工程技术有限公司 | Heat-resistant high-strength shrinkage-free grouting material |
-
2014
- 2014-04-17 CN CN201410154035.0A patent/CN103951345B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002285152A (en) * | 2001-03-26 | 2002-10-03 | Mitsubishi Materials Corp | Premix type low viscous pc grout material |
| CN101348336A (en) * | 2008-09-03 | 2009-01-21 | 东南大学 | Composite type special cement for ready-mixed mortar |
| 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 |
| CN102690092A (en) * | 2012-06-04 | 2012-09-26 | 同济大学 | Low-temperature rice hull ash doped cement-base shrinkage-free grouting material and using method thereof |
| CN102850026A (en) * | 2012-09-24 | 2013-01-02 | 上海宝冶工程技术有限公司 | Heat-resistant high-strength shrinkage-free grouting material |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108424065A (en) * | 2017-07-13 | 2018-08-21 | 上海城建建设实业集团新型建筑材料有限公司 | A kind of slurry and its preparation method and application |
| CN107352870A (en) * | 2017-07-28 | 2017-11-17 | 玉林诺赞建材有限公司 | A kind of strength cement-based grouting material |
| CN109665787A (en) * | 2019-02-28 | 2019-04-23 | 陈辉 | A kind of manufacturing method of construction wall grouting material |
| CN111410494A (en) * | 2020-04-22 | 2020-07-14 | 成都理工博大工程科技有限公司 | Underwater non-dispersive rapid-hardening grouting leak-stopping composite material and preparation method thereof |
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| CN103951345B (en) | 2015-10-28 |
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Granted publication date: 20151028 |