CN101157537A - Rapid-hardening self-leveling mortar material - Google Patents

Rapid-hardening self-leveling mortar material Download PDF

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Publication number
CN101157537A
CN101157537A CNA2007101438117A CN200710143811A CN101157537A CN 101157537 A CN101157537 A CN 101157537A CN A2007101438117 A CNA2007101438117 A CN A2007101438117A CN 200710143811 A CN200710143811 A CN 200710143811A CN 101157537 A CN101157537 A CN 101157537A
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CN
China
Prior art keywords
hardening
mortar
cement
percent
rapid
Prior art date
Application number
CNA2007101438117A
Other languages
Chinese (zh)
Inventor
张勇
杨富民
Original Assignee
铁道科学研究院铁道建筑研究所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 铁道科学研究院铁道建筑研究所 filed Critical 铁道科学研究院铁道建筑研究所
Priority to CNA2007101438117A priority Critical patent/CN101157537A/en
Publication of CN101157537A publication Critical patent/CN101157537A/en

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Abstract

The invention relates to quick hardening smooth automatic flowing mortar grouting that is utilized in the installation of a trough type rubber support and a column surface steel support of a high-speed railroad and a railway transportation special line bridge. The formula can also be applied after the adjustment in the large-scale equipment installation and the structure patching reinforcement. The invention has various components and weight proportions that: rapid hardening cement is 20-50 percent, quartz sand is 40-60percent, retarder is 0.6-1.5percent, hardening preparation is 0.01-0.05 percent, water reducing agent is 0.4-1.2 percent, micro silica flour is 0.8-2.0 percent, Anti-crack medicinal preparation is 0.1-2.0 percent and defoamer is 0.01-0.05percent. The invention has the advantages of using conventional construction material, having widespread sources of raw materials and low cost; packed bags with on-spot mixing, the reduction of environmental pollution, easy operation, good fluidity of mortar, gravity grouting and labor cost reduction. The hydromass packing is fine, the micro inflation packing performance is well embodied in the plastic stage, and the hardening is without shrinkage; the hardened mortar has high hour intensity and the extra-long age has no phenomenon of reverse shrinking; after the full agitation and settlement of the mortar, the undesirable phenomena like weeping, lamination and settlement do not happen, and the color and the luster of the mortar at each side remain uniform with good equality; the mortar can be adaptive to the engineering under sundry circumstances (including low negative temperature and high temperature).

Description

A kind of rapid-hardening self-leveling mortar material
Technical field
What the present invention relates to is a kind of material of construction engineering technical field, specifically, relate to a kind of railroad bridge pot rubber bearing and cylindrical surface bridle iron installation rapid-hardening self-leveling mortar material of being used for, prescription can be used for main equipment and install and fix and the building structure repairing and reinforcing after improving.
Background technology
High-speed railway and special line for passenger trains have proposed higher requirement to the stability of bridge and the safe operating life of structure, and in design, taken into full account the train passenger that is in operation and taken advantage of the comfort level of seat, in order to reach above-mentioned requirements, change traditional box girder erection support anchoring construction technology, adopted rapid-hardening self-leveling mortar to carry out the bearing anchoring.When building a bridge, the case beam is placed on the screw block of levelling in advance, the mean value that guarantees every reaction of supports and four reactions of supports differs and is no more than ± and 5%, can not surpass 2mm, make model, the perfusion rapid-hardening self-leveling mortar.
Rapid-hardening self-leveling mortar material should have degree of mobilization and suitable operable time preferably, higher hour intensity, the not retraction of long-age intensity, volume stability preferably.The requirement that the present invention installs material at high-speed railway and railway passenger dedicated line bridge support proposes.By retrieval, the at present domestic relevant patent that does not also have bridge pad to use material with rapid-hardening self-leveling mortar.
Summary of the invention
Purpose of the present invention just provides a kind of rapid-hardening self-leveling mortar material, can be applied to railroad bridge pot rubber bearing, the installation of cylindrical surface bridle iron, suitable adjusting process and production formula also can be applied to main equipment and install and fix and the building structure repairing and reinforcing.
The present invention is achieved by the following technical solutions, and each component of the present invention and weight percent thereof are:
Short-term strength cement 20~50
Quartz sand 40~60
Retardant 0.6~1.5
Accelerator for hardening 0.01~0.05
Water reducer 0.4~1.2
SILICA FUME 0.8~2.0
Anti-fissuring agent 0.1~2.0
Defoamer 0.01~0.05
The present invention mixes packed forming according to a certain percentage by short-term strength cement, quartz sand, retardant, accelerator for hardening, water reducer, SILICA FUME, anti-fissuring agent and defoamer.Adopt commercially available material of construction to realize the rapid-hardening self-leveling performance:
1. the employing short-term strength cement improves the early strength of slurry and the microdilatancy performance in later stage.Short-term strength cement has been successfully applied to construction work, cement products, rush repair, seepage control project etc. in China.Short-term strength cement is made up of in high-alumina cement, aluminosulfate cement, the silicate cement one or several.
Quick hardening Portland cement is the portland cement clinker based on suitable composition, adds that proper amount of gypsum is levigate to form, and has fast rigid energy.
Aluminosulfate cement is that Wingdale, alumina, the gypsum with proper composition is raw material, through low temperature (1300~1350 ℃) calcining form with anhydrous calcium sulphoaluminate (C 1A 3S), Dicalcium Phosphate (Feed Grade) (β-C 2S) grog of forming for essential mineral, by the method for mixing gypsum and an amount of blended material outward obtain high-early-strength, microdilatancy, expansion, from the hydraulic cementing materials of a series of excellent properties such as stress and low basicity.
High-alumina cement is to be raw material with vanadine and Wingdale, and what make through fusion or sintering is main constituent grog mutually with aluminic acid-calcium and two calcium aluminates, is forming through grinding.
Short-term strength cement has following characteristics: the cement early strength development is fast, and later strength still follows up simultaneously, and has advantages of higher tensile strength; Microdilatancy effect preferably; After the sclerosis, the density height of sand-cement slurry has impervious preferably, resistance to air loss.
2. adopt the quartz sand clean, that grade is good, improve the flowability of slurry.The quartz sand of rapid-hardening self-leveling mortar material of the present invention should satisfy following grade and grating requires:
0.315~1.25mm 15~45% (weight ratio)
0.63~0.315mm 20~50% (weight ratio)
<0.315mm 5~15% (weight ratio)
3. described retardant is one or several in citric acid, calcium gluconate, borax and the phosphoric acid salt, and the admixture retardant can be controlled operable time effectively.
4. described accelerator for hardening is one or several in Tai-Ace S 150, lime carbonate, Quilonum Retard, Sodium Nitrite, calcium formiate and the lime acetate, and the admixture accelerator for hardening can improve hour intensity of mortar effectively.2 hours intensity of mortar can reach more than the 20MPa.
5. described water reducer is one or several in powdered naphthalenesulfonate water reducer, sulfamate water reducer and the polycarboxylate water-reducer, and addition content is 0.5~1.5% of a gelling material, can significantly improve the flowability of mortar, and mortar is realized from levelling.
6. SILICA FUME can improve the water retention property of mortar, and increases the density and the intensity of sclerosis back slurry.
7. defoamer can be removed the bubble that mortar produces in mixing the system process, improves the mechanical property of hardened paste.
Preparation method of the present invention is: take by weighing required short-term strength cement, quartz sand, retardant, accelerator for hardening, water reducer, SILICA FUME, anti-fissuring agent and defoamer by formula rate, stir in stirrer, form finished product, pack stand-by.During on-the-spot the use, directly be suitable for behind the blunge, ratio of water to material is 0.13~0.16.
The invention has the advantages that: use the routine building material, it is extensive to have raw material sources, the advantage that cost is low; Packed bags with on-spot is mixed and stirred, and reduces environmental pollution, and is easy and simple to handle, and good fluidity of mortar can realize not having the gravity grouting under the external force condition, reduces cost of labor; The fillibility of slurry is good, has the microdilatancy filling properties in the plastic stage, and the sclerosis back does not have contraction substantially; Hour intensity height after the slurry sclerosis, long-age intensity does not have the retraction phenomenon; Slurry fully stirs bad phenomenon such as leaving standstill the no bleeding in back, layering, depression, and all circles starch adhesive body colour pool is consistent, good uniformity; Slurry can adapt to and (comprise under low subzero temperature and the hot conditions) construction under the various envrionment conditionss.
Embodiment
Provide following examples in conjunction with content of the present invention:
Rapid-hardening self-leveling mortar material mixes packed forming according to a certain percentage by short-term strength cement, quartz sand, retardant, accelerator for hardening, water reducer, SILICA FUME, anti-fissuring agent and defoamer.According to the engineering application need, the envrionment conditions characteristics by adjusting the invention prescription, can obtain needed performance.
Embodiment
Short-term strength cement 35
Quartz sand 60
Retardant 0.5
Accelerator for hardening 0.05
Water reducer 0.4
SILICA FUME 2.0
Anti-fissuring agent 2.0
Defoamer 0.05
Said components is according to the rapid-hardening self-leveling mortar dry powder material of aforementioned prepared, and dry powder material and the water ratio according to 1: 0.14 (weight ratio) is stirred, and it is as follows to record its performance:
Degree of mobilization: 330mm (initially), 280mm (30min) bleeding rate: 0;
Ultimate compression strength: 32MPa (2h), 65MPa (24h), 78MPa (28d), 83MPa (56d), 92MPa (90d)
Folding strength: 6.2MPa (2h), 10.8MPa (24h), 11.4MPa (28d), 11.4MPa (56d);
Young's modulus: 37.2GPa (28d); Degree of free swelling under the normal curing condition: 0.03% (28d).

Claims (7)

1. mortar material is used in rapid-hardening self-leveling grouting, and it is characterized in that adopting short-term strength cement, quartz sand is main raw material, and in addition accelerator for hardening, retardant prepare, and the prescription of its compositions in weight percentage is as follows:
Short-term strength cement 20~50
Quartz sand 40~60
Retardant 0.6~1.5
Accelerator for hardening 0.01~0.05
Water reducer 0.4~1.2
SILICA FUME 0.8~2.0
Anti-fissuring agent 0.1~2.0
Defoamer 0.01~0.05
2. short-term strength cement as claimed in claim 1 is made up of in high-alumina cement, aluminosulfate cement, the silicate cement one or several.
3. water reducer as claimed in claim 1 is one or several in powdered naphthalenesulfonate water reducer, sulfamate water reducer and the polycarboxylate water-reducer.
4. retardant as claimed in claim 1 is one or several in citric acid, calcium gluconate, borax and the phosphoric acid salt.
5. accelerator for hardening as claimed in claim 1 is one or several in Tai-Ace S 150, lime carbonate, Quilonum Retard, Sodium Nitrite, calcium formiate and the lime acetate.
6. anti-fissuring agent as claimed in claim 1 is a kind of in vinyl acetate-ethylene copolymer and the mineral fibre or two kinds.
7. the rapid-hardening self-leveling grouting as claimed in claim 1 preparation method of mortar material, it is characterized in that: mark takes by weighing short-term strength cement, quartz sand, retardant, accelerator for hardening, water reducer, SILICA FUME, anti-fissuring agent and defoamer by weight respectively, pours in the stirrer to stir.The material that stirs and water are mixed and made into mortar material according to a certain percentage are used for the gravity grouting construction.
CNA2007101438117A 2007-08-02 2007-08-02 Rapid-hardening self-leveling mortar material CN101157537A (en)

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CNA2007101438117A CN101157537A (en) 2007-08-02 2007-08-02 Rapid-hardening self-leveling mortar material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2007101438117A CN101157537A (en) 2007-08-02 2007-08-02 Rapid-hardening self-leveling mortar material

Publications (1)

Publication Number Publication Date
CN101157537A true CN101157537A (en) 2008-04-09

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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102276185A (en) * 2011-06-28 2011-12-14 上海三瑞高分子材料有限公司 Early strength type water reducing agent for precast concrete
CN102320793A (en) * 2011-08-23 2012-01-18 大连建科北方化学有限公司 Quick-hardening self-compacting anti-cracking high-performance grouting material
CN102351492A (en) * 2011-07-15 2012-02-15 郑州大学 Machine-made sand light-expansion high early strength grouting material and preparation method thereof
CN102358693A (en) * 2011-08-22 2012-02-22 天津市贝乐建筑材料有限公司 Levelling mortar and ground construction process based on the same
CN102115320B (en) * 2009-12-31 2013-05-01 北京市建筑工程研究院有限责任公司 Super early strength mortar
CN103833288A (en) * 2014-03-14 2014-06-04 福州皇家地坪有限公司 Polymer mortar for rapid repair
CN101555106B (en) * 2009-04-03 2014-06-25 广东龙湖科技股份有限公司 Composite cementitious material and ground self-leveling mortar using same
CN105523745A (en) * 2016-01-08 2016-04-27 甘肃省交通规划勘察设计院有限责任公司 Bridge expansion joint fast reparation material
CN105622029A (en) * 2015-12-25 2016-06-01 江苏蓝圈新材料有限公司 Cement-based self-leveling mortar
CN105800977A (en) * 2014-12-31 2016-07-27 嘉华特种水泥股份有限公司 Method for improving early strength of sulfoaluminate clinker
CN105837137A (en) * 2016-04-08 2016-08-10 武汉理工大学 Composite reinforcing type mortar for rapid repairing
CN106082883A (en) * 2016-05-16 2016-11-09 甘肃路桥建设集团养护科技有限责任公司 A kind of polymer material for quickly repairing repaired for bridge expanssion joint
CN106278079A (en) * 2015-05-18 2017-01-04 刘旭臻 A kind of macromolecular material base material and preparation technology thereof
CN106479460A (en) * 2016-10-17 2017-03-08 西南石油大学 Steam soak turns steam flooding layer transformation and is starched with permeable cement
CN107459327A (en) * 2017-08-03 2017-12-12 长安大学 Suitable for low temperature or the fast repairing concrete material of construction in minus-temperature environment
CN108002780A (en) * 2017-12-14 2018-05-08 许昌金欧特沥青股份有限公司 A kind of colored fast hard self-inflow type semi-flexible road surface mortar
CN108585713A (en) * 2018-06-05 2018-09-28 长安大学 A kind of injecting paste material of cement mortar
CN108609972A (en) * 2018-06-05 2018-10-02 长安大学 A kind of high-strength fast hard bolt grouting material
CN108863262A (en) * 2018-07-06 2018-11-23 青岛理工大学 The preparation method of high-strength quick anchoring agent and its slurries
CN109133782A (en) * 2018-08-29 2019-01-04 河海大学 A kind of eco-cement base concrete enhancing coating and preparation method thereof
CN109231936A (en) * 2018-10-18 2019-01-18 中国铁道科学研究院集团有限公司金属及化学研究所 A kind of Self-leveling waterproof mortar and its preparation method and application
CN109626944A (en) * 2019-01-25 2019-04-16 国网山西省电力公司经济技术研究院 A kind of high-tension line disc type ground perfusion materia and its preparation method and application
CN109721316A (en) * 2019-03-18 2019-05-07 湖南固特邦土木技术发展有限公司 A kind of wide material of bridge spelling of uninterrupted traffic

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101555106B (en) * 2009-04-03 2014-06-25 广东龙湖科技股份有限公司 Composite cementitious material and ground self-leveling mortar using same
CN102115320B (en) * 2009-12-31 2013-05-01 北京市建筑工程研究院有限责任公司 Super early strength mortar
CN102276185A (en) * 2011-06-28 2011-12-14 上海三瑞高分子材料有限公司 Early strength type water reducing agent for precast concrete
CN102351492B (en) * 2011-07-15 2013-07-31 郑州大学 Machine-made sand light-expansion high early strength grouting material and preparation method thereof
CN102351492A (en) * 2011-07-15 2012-02-15 郑州大学 Machine-made sand light-expansion high early strength grouting material and preparation method thereof
CN102358693B (en) * 2011-08-22 2013-03-27 天津市贝乐建筑材料有限公司 Levelling mortar and ground construction process based on the same
CN102358693A (en) * 2011-08-22 2012-02-22 天津市贝乐建筑材料有限公司 Levelling mortar and ground construction process based on the same
CN102320793A (en) * 2011-08-23 2012-01-18 大连建科北方化学有限公司 Quick-hardening self-compacting anti-cracking high-performance grouting material
CN103833288A (en) * 2014-03-14 2014-06-04 福州皇家地坪有限公司 Polymer mortar for rapid repair
CN105800977A (en) * 2014-12-31 2016-07-27 嘉华特种水泥股份有限公司 Method for improving early strength of sulfoaluminate clinker
CN106278079A (en) * 2015-05-18 2017-01-04 刘旭臻 A kind of macromolecular material base material and preparation technology thereof
CN105622029A (en) * 2015-12-25 2016-06-01 江苏蓝圈新材料有限公司 Cement-based self-leveling mortar
CN105523745A (en) * 2016-01-08 2016-04-27 甘肃省交通规划勘察设计院有限责任公司 Bridge expansion joint fast reparation material
CN105837137B (en) * 2016-04-08 2018-01-12 武汉理工大学 A kind of composite enhanced rapid-patching motar
CN105837137A (en) * 2016-04-08 2016-08-10 武汉理工大学 Composite reinforcing type mortar for rapid repairing
CN106082883A (en) * 2016-05-16 2016-11-09 甘肃路桥建设集团养护科技有限责任公司 A kind of polymer material for quickly repairing repaired for bridge expanssion joint
CN106082883B (en) * 2016-05-16 2018-06-08 甘肃路桥建设集团养护科技有限责任公司 A kind of polymer material for quickly repairing for bridge expanssion joint reparation
CN106479460A (en) * 2016-10-17 2017-03-08 西南石油大学 Steam soak turns steam flooding layer transformation and is starched with permeable cement
CN107459327A (en) * 2017-08-03 2017-12-12 长安大学 Suitable for low temperature or the fast repairing concrete material of construction in minus-temperature environment
CN108002780A (en) * 2017-12-14 2018-05-08 许昌金欧特沥青股份有限公司 A kind of colored fast hard self-inflow type semi-flexible road surface mortar
CN108609972A (en) * 2018-06-05 2018-10-02 长安大学 A kind of high-strength fast hard bolt grouting material
CN108585713A (en) * 2018-06-05 2018-09-28 长安大学 A kind of injecting paste material of cement mortar
CN108609972B (en) * 2018-06-05 2021-01-19 长安大学 High-strength quick-hardening anchor rod grouting material
CN108863262B (en) * 2018-07-06 2019-12-17 青岛理工大学 High-strength quick anchoring agent and preparation method of slurry thereof
CN108863262A (en) * 2018-07-06 2018-11-23 青岛理工大学 The preparation method of high-strength quick anchoring agent and its slurries
CN109133782A (en) * 2018-08-29 2019-01-04 河海大学 A kind of eco-cement base concrete enhancing coating and preparation method thereof
CN109231936A (en) * 2018-10-18 2019-01-18 中国铁道科学研究院集团有限公司金属及化学研究所 A kind of Self-leveling waterproof mortar and its preparation method and application
CN109626944A (en) * 2019-01-25 2019-04-16 国网山西省电力公司经济技术研究院 A kind of high-tension line disc type ground perfusion materia and its preparation method and application
CN109721316A (en) * 2019-03-18 2019-05-07 湖南固特邦土木技术发展有限公司 A kind of wide material of bridge spelling of uninterrupted traffic

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