CN104030639A - No-shrinkage ultrahigh-strength grouting material and preparation method thereof - Google Patents
No-shrinkage ultrahigh-strength grouting material and preparation method thereof Download PDFInfo
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- CN104030639A CN104030639A CN201410283342.9A CN201410283342A CN104030639A CN 104030639 A CN104030639 A CN 104030639A CN 201410283342 A CN201410283342 A CN 201410283342A CN 104030639 A CN104030639 A CN 104030639A
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- grouting material
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Abstract
The invention provides a no-shrinkage ultrahigh-strength grouting material which is composed of the following components in percentage by mass: 30-50% of Portland cement, 5.0-10.0% of expanding agent, 44-64% of regenerated aggregate and 0.5-1.0% of cement water reducing agent. The invention also provides a preparation method of the grouting material. The 28-day compression strength of the no-shrinkage ultrahigh-strength grouting material is up to 110 MPa, the folding strength is greater than that of the secondary grouting material (25 MPa), and the vertical expansion ratio satisfies the requirement in Table 4.1.1 in GB/T50488. The no-shrinkage ultrahigh-strength grouting material can also satisfy the demands for anchor bolt anchor grouting, secondary grouting, concrete structure reconstruction and reinforcement grouting, posttensioned prestressed concrete structure pore grouting and other projects.
Description
Technical field:
The present invention relates to chemical field, relate in particular to material of construction, particularly grouting material, concrete is a kind of without shrinking superelevation strength grouting material and preparation method.
Background technology:
Along with socioeconomic development, various super-huge equipments and high-rise building are more and more, and high-speed railway mileage is more and more longer, still, ultimate compression strength and the folding strength of grouting material of the prior art are low, therefore can not meet the requirement of engineering to basic material.
Summary of the invention:
The object of the present invention is to provide a kind of without shrinking superelevation strength grouting material, described this nothing contraction superelevation strength grouting material will solve grouting material ultimate compression strength of the prior art and the low technical problem of folding strength.
Of the present invention this without shrinking superelevation strength grouting material, by silicate cement, swelling agent, regenerated aggregate and cement water reducing agent, formed, the mass percent of described silicate cement in described grouting material is 30%～50%, the mass percent of described swelling agent in described grouting material is 5.0%～10.0%, the mass percent of described regenerated aggregate in described grouting material is 44%～64%, and the mass percent of described cement water reducing agent in described grouting material is 0.5%～1.0%.
Further, described cement water reducing agent is selected from naphthalene water reducer, melamine class water reducer or polycarboxylic acid type water reducer.
Further, described swelling agent is selected from burning calcium oxide or burning calcium sulfate.
Further, described regenerated aggregate is selected from waste concrete block or dump slag, and described waste concrete block and the particle diameter of dump slag are less than 16mm.
Further, described cement water reducing agent is naphthalene system, melamine class or polycarboxylic acid type, and the chloride ion content in described cement water reducing agent is less than or equal to over 0.06% of cementation process material total mass.
The present invention also provides a kind of above-mentioned method without shrinking superelevation strength grouting material of preparing, described method comprises a step that takes silicate cement, swelling agent, regenerated aggregate and cement water reducing agent, then above-mentioned each material is added respectively in a stirred vessel to uniform stirring.
Of the present inventionly without shrinking 28 days ultimate compression strength of superelevation strength grouting material, reach the back-grouting material that 110Mpa, folding strength are greater than 25Mpa, vertical expansion ratio meets the requirement of GB/T50488 table 4.1.1.
GB/T50488 shows 4.1.1
Can select≤4.75mm of the maximum particle diameter of gathering materials, or > 4.75 and≤16mm, gathering materials has self-assembling formation, manually manufactures and regenerated aggregate; This project is selected gathers materials for regenerated aggregate; Utilize waste concrete block (discarded slag) to be crushed to≤4.75mm, or > 4.75 and≤16mm; The utilization of this grouting material to regenerated aggregate, reduces the consumption of environmental pollution and natural resources, the energy, the trade waste of dissolving to greatest extent, to realizing ecotope harmonious development, has important social effect.
Grouting material of the present invention be take that microdilatancy silicate is basis, the various particle diameters of optimum combination gather materials, be aided with cement water reducing agent, rational water cement ratio, after stirring, obtain.The present invention shows except ultimate compression strength meets GB/T50488 the main performance index that 4.1.1 stipulates, the engineering demands such as foot bolt anchor grouting contentedly, back-grouting, concrete structure transformation and reinforcing grouting, post-tensioned concrete structure duct grouting, suitable winter construction, normal temperature construction, the construction of megathermal climate environment.
Embodiment:
Embodiment 1
The present invention is a kind of without shrinking superelevation strength grouting material, by silicate cement, swelling agent, regenerated aggregate and cement water reducing agent, formed, the mass percent of described silicate cement in grouting material is 30%～50%, the mass percent of described swelling agent in grouting material is 5.0%～10.0%, the mass percent of described regenerated aggregate in grouting material is 44%～64%, and the mass percent of described cement water reducing agent in grouting material is 0.5%～1.0%.
Further, described cement water reducing agent is selected from any one in naphthalene water reducer, melamine class water reducer or polycarboxylic acid type water reducer.
Further, described swelling agent is selected from burning calcium oxide or burning calcium sulfate.
Further, described regenerated aggregate is selected from waste concrete block or dump slag, and described waste concrete block and the particle diameter of dump slag are less than 16mm.
Further, described cement water reducing agent is naphthalene system, melamine class or polycarboxylic acid type, and the chloride ion content in described cement water reducing agent is no more than 0.06% of cementation process material total mass.
The present invention also provides the above-mentioned preparation method without shrinking superelevation strength grouting material, comprises a step that takes above-mentioned each material, then above-mentioned each material is added respectively in a stirred vessel to uniform stirring.
Embodiment 2
Check: get the compound 1800g stirring, pouring start in agitator kettle into stirs, in 10s, add 12%～16% water to stir 240s, project according to GB/T50448 table 4.1.1 regulation detects respectively: intensity detection is carried out by the relevant regulations in existing national standard < < Test method for strength of hydraulic cement mortar (ISO method) > > GB/T17671, pour liquefaction grouting into 4cm*4cm*16cm die trial and put into standard curing box maintenance 24h, after form removal, put into curing pool maintenance to broken type in each length of time, can obtain:
1d:50～60Mpa; 3d:75～85Mpa; 7d:85～95Mpa; The intensity of 28d:100～110Mpa.
Embodiment 3 relatively
At present, the intensity 28d of domestic silicate cement base grouting material general 60 is to 70Mpa state of the art, external import can reach 100Mpa, every cube of price is greatly about 25000 yuan～28000 yuan; And domestic sulphoaluminate cement base grouting material has 28d to reach 100Mpa's; First, we know that aluminosulfate cement hydrated product is ettringite crystal, arranges with columnar structure; In nature, there is no natural ettringite, ettringite can with nature in carbonic acid gas and sulfurous gas react, generate calcium carbonate and calcium sulfate, calcium sulfate is met water and can be dissolved, thereby can affect concrete work-ing life; Secondly aluminosulfate cement has excessive sulphur and is discharged into atmosphere with gas form in generative process, has further polluted air, and chance rainwater reacts and gets back to ground with the form of sulfuric acid, and aggravation affects concrete work-ing life; The 3rd, aluminosulfate cement main raw material is that bauxitic clay adds calcium sulfate, and the grade of bauxitic clay determines the intensity of aluminosulfate cement, if a large amount of fine aluminum alumina is only used for producing cement, is definitely waste resource; And silicate cement is through the development in century more than one, although people recognize silicate cement and also can discharge carbonic acid gas, dust, power consumption in process of production, but on the whole for improve people living environment, improve appearance of city, as basic material, be indispensable; Silicate cement mud product good endurance, long service life, the demand that can meet various buildingss through improvement, as resisting sea water erosion, anti-carbonation properties are better than aluminosulfate cement, resistance to elevated temperatures is better than aluminosulfate cement, price is only half of external import material.
Claims (6)
1. a nothing is shunk superelevation strength grouting material, it is characterized in that: by silicate cement, swelling agent, regenerated aggregate and cement water reducing agent, formed, the mass percent of described silicate cement in described grouting material is 30% ~ 50%, the mass percent of described swelling agent in described grouting material is 5.0% ~ 10.0%, the mass percent of described regenerated aggregate in described grouting material is 44% ~ 64%, and the mass percent of described cement water reducing agent in described grouting material is 0.5% ~ 1.0%.
2. as claimed in claim 1 without shrinking superelevation strength grouting material, it is characterized in that: described cement water reducing agent is selected from naphthalene water reducer, melamine class water reducer or polycarboxylic acid type water reducer.
3. as claimed in claim 1 without shrinking superelevation strength grouting material, it is characterized in that: described swelling agent is selected from burning calcium oxide or burning calcium sulfate.
4. nothing as claimed in claim 1 is shunk superelevation strength grouting material, it is characterized in that: described regenerated aggregate is selected from waste concrete block or dump slag, and described waste concrete block and the particle diameter of dump slag are less than 16mm.
5. as claimed in claim 1 without shrinking superelevation strength grouting material, it is characterized in that: described cement water reducing agent is naphthalene system, melamine class or polycarboxylic acid type, and the chloride ion content in described cement water reducing agent is less than or equal to over 0.06% of cementation process material total mass.
6. prepare the method without shrinking superelevation strength grouting material as claimed in claim 1 for one kind, it is characterized in that: comprise a step that takes silicate cement, swelling agent, regenerated aggregate and cement water reducing agent, then above-mentioned each material is added respectively in a stirred vessel to uniform stirring.
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| CN201410283342.9A CN104030639A (en) | 2014-06-23 | 2014-06-23 | No-shrinkage ultrahigh-strength grouting material and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106495581A (en) * | 2016-10-31 | 2017-03-15 | 华北水利水电大学 | Grouting material that reinforces for road and preparation method thereof |
| CN107382203A (en) * | 2017-08-02 | 2017-11-24 | 中冶武汉冶金建筑研究院有限公司 | A kind of large dosage dry slag early-strength High Strength Non-shrinking Filling Material |
| CN112390573A (en) * | 2020-09-28 | 2021-02-23 | 重庆三峡学院 | Preparation method of novel grouting reinforced cement-based material |
| CN113968699A (en) * | 2020-07-22 | 2022-01-25 | 江苏苏博特新材料股份有限公司 | Recycling method of concrete waste residues from mixing plant |
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| CN1084837A (en) * | 1992-09-29 | 1994-04-06 | 同济大学 | High flowability, micro expanding cement grout material |
| CN1151980A (en) * | 1996-11-20 | 1997-06-18 | 长江水利委员会长江科学院 | Early-strength grouting material for rock anchoring and grout producing process |
| JP2004323294A (en) * | 2003-04-24 | 2004-11-18 | Taiheiyo Cement Corp | Concrete |
| CN101514094A (en) * | 2008-02-22 | 2009-08-26 | 中国京冶工程技术有限公司 | Steel slag and slag high-performance composite grout |
| CN101570417A (en) * | 2009-04-21 | 2009-11-04 | 同济大学 | Recycled fine aggregate building heat insulation mortar and preparation method thereof |
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2014
- 2014-06-23 CN CN201410283342.9A patent/CN104030639A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1084837A (en) * | 1992-09-29 | 1994-04-06 | 同济大学 | High flowability, micro expanding cement grout material |
| CN1151980A (en) * | 1996-11-20 | 1997-06-18 | 长江水利委员会长江科学院 | Early-strength grouting material for rock anchoring and grout producing process |
| JP2004323294A (en) * | 2003-04-24 | 2004-11-18 | Taiheiyo Cement Corp | Concrete |
| CN101514094A (en) * | 2008-02-22 | 2009-08-26 | 中国京冶工程技术有限公司 | Steel slag and slag high-performance composite grout |
| CN101570417A (en) * | 2009-04-21 | 2009-11-04 | 同济大学 | Recycled fine aggregate building heat insulation mortar and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106495581A (en) * | 2016-10-31 | 2017-03-15 | 华北水利水电大学 | Grouting material that reinforces for road and preparation method thereof |
| CN106495581B (en) * | 2016-10-31 | 2018-02-09 | 华北水利水电大学 | Grouting material reinforced for road and preparation method thereof |
| CN107382203A (en) * | 2017-08-02 | 2017-11-24 | 中冶武汉冶金建筑研究院有限公司 | A kind of large dosage dry slag early-strength High Strength Non-shrinking Filling Material |
| CN113968699A (en) * | 2020-07-22 | 2022-01-25 | 江苏苏博特新材料股份有限公司 | Recycling method of concrete waste residues from mixing plant |
| CN112390573A (en) * | 2020-09-28 | 2021-02-23 | 重庆三峡学院 | Preparation method of novel grouting reinforced cement-based material |
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Application publication date: 20140910 |