CN106316291A - Ballastless track bed concrete defect repairing material - Google Patents

Ballastless track bed concrete defect repairing material Download PDF

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Publication number
CN106316291A
CN106316291A CN201610704886.7A CN201610704886A CN106316291A CN 106316291 A CN106316291 A CN 106316291A CN 201610704886 A CN201610704886 A CN 201610704886A CN 106316291 A CN106316291 A CN 106316291A
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CN
China
Prior art keywords
parts
agent
water
concrete defect
bed concrete
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201610704886.7A
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Chinese (zh)
Inventor
王学振
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Beijing Zhongdexinya Architecture Technology Co Ltd
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Beijing Zhongdexinya Architecture Technology Co Ltd
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Publication date
Application filed by Beijing Zhongdexinya Architecture Technology Co Ltd filed Critical Beijing Zhongdexinya Architecture Technology Co Ltd
Priority to CN201610704886.7A priority Critical patent/CN106316291A/en
Publication of CN106316291A publication Critical patent/CN106316291A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/04Portland cements
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/72Repairing or restoring existing buildings or building materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

Abstract

The invention discloses a ballastless track bed concrete defect repairing material, comprising the following materials in parts by weight: 200-600 parts of cement, 300-700 parts of quartz sand, 10-50 parts of silica fume, 50-150 parts of floating beads, 15-40 parts of re-dispersible latex powder, 1-5 parts of a water retention agent, 1-5 parts of a water reducer, 1-3 parts of an early strength agent, 0.5-1.5 parts of polypropylene fiber, and 1-5 parts of a thixotropic agent. The ballastless track bed concrete defect repairing material is a polymer modified cement based composite material which not only gives full play to the advantages of easy availability, good durability, environmental friendliness and relatively low price of an organic material, but also highlights the advantage of high flexibility of a polymer.

Description

A kind of non-fragment orbit bed concrete defect patching material
Technical field
The invention belongs to engineering material technical field, relate to a kind of non-fragment orbit bed concrete defect patching material.
Background technology
There are the following problems for current material: 1 and old concrete cohesive force deficiency, affects service life;2, receive due to material , easily there is crackle (even coming off), affects repairing effect in contracting problem.3, can not occur after thin layer construction or thin layer construction Hollowing or cracking;3, the material open hour are not enough, or workability is the best.
Summary of the invention
In order to solve the problem that prior art exists, the invention provides a kind of non-fragment orbit bed concrete defect repairing material Material.
The purpose of the present invention is achieved through the following technical solutions: a kind of non-fragment orbit bed concrete defect patching material, Including cementQuartz sandSilicon ashFloating bead Redispersible Latex powderWater-retaining agentWater reducerEarly strength agentPolypropylene fibreThixotropic agent
Preferably, described redispersable latex powder is that Germany watt gram 5010 and 5044N is compounded by quality 1: 1, described water conservation Agent is hydroxypropyl methyl cellulose, and described water reducer is polycarboxylic acid salt's water reducer, and described early strength agent is calcium formate.
The most described cement 300 parts, quartz sand 650 parts, silicon ash 20 parts, floating bead 100 parts, redispersable latex powder 30 Part, water-retaining agent 3 parts, water reducer 1.3 parts, early strength agent 1.0 parts, polypropylene fibre 1.0 parts, thixotropic agent 1.5 parts.
Preferably, described cement 270 parts, quartz sand 650 parts, silicon ash 20 parts, floating bead 130 parts, redispersable latex powder 27 Part, water-retaining agent 3 parts, water reducer 1.2 parts, early strength agent 0.8 part, polypropylene fibre 1.0 parts, thixotropic agent 1.5 parts.
Preferably, described cement 330 parts, quartz sand 650 parts, silicon ash 20 parts, floating bead 70 parts, redispersable latex powder 33 Part, water-retaining agent 3 parts, water reducer 1.4 parts, early strength agent 1.2 parts, polypropylene fibre 1.0 parts, thixotropic agent 1.5 parts.
Preferably, described cement 350 parts, quartz sand 650 parts, silicon ash 20 parts, floating bead 50 parts, redispersable latex powder 35 Part, water-retaining agent 3 parts, water reducer 1.5 parts, early strength agent 1.4 parts, polypropylene fibre 1.0 parts, thixotropic agent 1.5 parts.
The medicine have the advantages that
1, this non-fragment orbit bed concrete defect patching material, is the cement-base composite material of a kind of polymer modification. Both played inorganic material be easy to get, good endurance, environmental friendliness, price is want, to cheap advantage, to highlight again polymer Gao Rou The advantage of toughness.
2, this non-fragment orbit bed concrete defect patching material, can form polymer water muddy water at damaged part Change the cross-linked network structure of product, produce chemistry and the cohesiveness of mechanical bond and adhesive force, with old concrete strong bonded, shape Become organic whole.Meanwhile, thin layer reparation can be carried out to without miscellaneous track bed concrete defect.
Detailed description of the invention
The present invention is described further in conjunction with the embodiments.
A kind of non-fragment orbit bed concrete defect patching material, it is the cement based premixing dry blend of polymer modification, makes Used time is added into water and uniformly stirred use, is exclusively used in the quick reparation that ballastless track of high-speed railway bed concrete is damaged.
Its composition and mass fraction are as follows: cementQuartz sandSilicon ashFloating beadPolymeric materialWater-retaining agentWater reducerEarly agentPolypropylene fibreThixotropic agent
Wherein, described cement is 42.5 grades of lumnite cements, and described quartz sand is quartziferous mechanism medium sand, described can Redispersion latex powder is that import Germany watt gram 5010 and 5044N compounds by 1: 1, and described water-retaining agent is hydroxypropyl methyl cellulose (HPMC), described water reducer is polycarboxylic acid salt's water reducer, and described early strength agent is calcium formate, and described thixotropic agent is Germany's import The 602 special thixotropic agent of type dry-mixed mortar.
This non-fragment orbit bed concrete defect patching material, has the distinguishing feature of early-strong-fast-hard, and both can be thin Layer construction, can also mix outward about 20% blinding if desired and make concrete use.
The preferred lumnite cement of the present invention is as main Binder Materials so that this machine non-fragment orbit bed concrete defect Patching material has the feature of early-strong-fast-hard.
This non-fragment orbit bed concrete defect patching material, adds Germany's import and is resistant to dispersed latex powder, and polymer cement ratio is high ReachMaking hardening repairing body pore structure form the thin film of closing continuously and have hydrophobicity, steam can freely be arranged Go out, but can resist the erosion to repairing body of aqueous medium, acid-alkali medium and grease medium, and become with the cohesive force of old concrete Times strengthen, do not have hollowing phenomenon, can " slitless connection " realize the use functional dimension of non-fragment orbit bed concrete and complete Whole property.
Polymer solidify to form thread film layer and is distributed in whole hardening of cement body, and these thread polymer films are horizontal Defect in hardening of cement body and micro-crack, and because of its higher cohesiveness and bigger tensile strength and deformability, inhale Receive the work to break needed for micro-crack extension, thus effectively delay the spreading rate of micro-crack.The polymer of solidification also may be used Pore in filling hardening of cement body, the adhesion of polymer can also strengthen the bonding of cement slurry and aggregate Interface.Therefore, poly- Compound is conducive to improving cement mortar and the impervious and corrosion resistance of concrete.
Water-retaining agent (HPMC), has the good water-retaining property material high tenacity feature with the modification of high polymer cement ratio, is carrying out nothing When tiny fragments of stone, coal, etc. track bed concrete membrane is repaired, also ensure that the unlikely dehydration of slurry is too fast and cement and the intrinsic rigidity of material, and Affect the hydration and hardening of cement-based gelling material and the normal use of patching material.
Early strength agent calcium formate makes this machine non-fragment orbit bed concrete defect patching material hydration and hardening process accelerate.
The incorporation of polypropylene fibre, just as being configured with in repair sheets hardenite " mild steel muscle ", improves the toughness of repairing body And splitting resistance.
Thixotropic agent (602) makes this airfield pavement Rapid-Repair rubber cement body cohesiveness, and workability is greatly improved, The pore structure of non-fragment orbit bed concrete defect patching material hardenite is optimised.
Silicon ash and floating bead all have higher Pozzolanic feature, actual in non-fragment orbit bed concrete defect patching material Participate in the hydration and hardening process of main body gelling material, the particularly hydrated product of silicon ash and can also penetrate into defect non-fragment orbit bed coagulation In the pore of soil, not only improving the pore structure of this patching material hydration and hardening body, the most this patching material aquation is hard Change body to be connected with the mutual of basic unit.
The spherical structure of floating bead is also advantageous to this material workability and the density of hardenite.
Preferably example one
A kind of non-fragment orbit bed concrete defect patching material, it is by the cement based premixing dry blend of polymer modification, It is added into water and uniformly stirred use during use, is exclusively used in the quick reparation of ballastless track of high-speed railway bed concrete defect.Its group Become and mass fraction be shown in Table one:
Table one
Implementation result is shown in Table five.
Preferably example two:
A kind of non-fragment orbit bed concrete defect patching material, it is by the cement based premixing dry blend of polymer modification, It is added into water and uniformly stirred use during use, is exclusively used in the quick reparation of ballastless track of high-speed railway bed concrete defect.Its group Become and mass fraction be shown in Table two:
Table two
Implementation result is shown in Table five.
Preferably example three:
A kind of non-fragment orbit bed concrete defect patching material, it is by the cement based premixing dry blend of polymer modification, It is added into water and uniformly stirred use during use, is exclusively used in the quick reparation of ballastless track of high-speed railway bed concrete defect.Its group Become and mass fraction be shown in Table three:
Table three
Implementation result is shown in Table five.
Preferably example four:
A kind of airfield pavement Rapid-Repair glue, it is the cement based premixing dry blend of polymer modification, adds water and stir during use Mix and uniformly can use, be exclusively used in the quick reparation that airfield pavement is damaged.Its composition and mass fraction are shown in Table four:
Table four
Implementation result is shown in Table five.
Result of implementation summary sheet table five
The foregoing is only four kinds of specific embodiments of the present invention, but embodiments of the invention are not limited thereto, any Those skilled in the art in the field of the invention, the change made or modify all contain protection scope of the present invention it In.

Claims (6)

1. a non-fragment orbit bed concrete defect patching material, it is characterised in that include cementQuartz sandSilicon ashFloating beadRedispersable latex powderWater-retaining agentWater reducerEarly strength agentPolypropylene fibreThixotropic agent
Non-fragment orbit bed concrete defect patching material the most according to claim 1, it is characterised in that described redispersible Latex powder is that Germany watt grams 5010 and 5044N is compounding by quality 1: 1, and described water-retaining agent is hydroxypropyl methyl cellulose, described in subtract Water preparation is polycarboxylic acid salt's water reducer, and described early strength agent is calcium formate.
Non-fragment orbit bed concrete defect patching material the most according to claim 1 and 2, it is characterised in that described cement 300 parts, quartz sand 650 parts, silicon ash 20 parts, floating bead 100 parts, redispersable latex powder 30 parts, water-retaining agent 3 parts, water reducer 1.3 Part, early strength agent 1.0 parts, polypropylene fibre 1.0 parts, thixotropic agent 1.5 parts.
Non-fragment orbit bed concrete defect patching material the most according to claim 1 and 2, it is characterised in that described cement 270 parts, quartz sand 650 parts, silicon ash 20 parts, floating bead 130 parts, redispersable latex powder 27 parts, water-retaining agent 3 parts, water reducer 1.2 Part, early strength agent 0.8 part, polypropylene fibre 1.0 parts, thixotropic agent 1.5 parts.
Non-fragment orbit bed concrete defect patching material the most according to claim 1 and 2, it is characterised in that described cement 330 parts, quartz sand 650 parts, silicon ash 20 parts, floating bead 70 parts, redispersable latex powder 33 parts, water-retaining agent 3 parts, water reducer 1.4 parts, Early strength agent 1.2 parts, polypropylene fibre 1.0 parts, thixotropic agent 1.5 parts.
Non-fragment orbit bed concrete defect patching material the most according to claim 1 and 2, it is characterised in that described cement 350 parts, quartz sand 650 parts, silicon ash 20 parts, floating bead 50 parts, redispersable latex powder 35 parts, water-retaining agent 3 parts, water reducer 1.5 parts, Early strength agent 1.4 parts, polypropylene fibre 1.0 parts, thixotropic agent 1.5 parts.
CN201610704886.7A 2016-08-22 2016-08-22 Ballastless track bed concrete defect repairing material Pending CN106316291A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610704886.7A CN106316291A (en) 2016-08-22 2016-08-22 Ballastless track bed concrete defect repairing material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610704886.7A CN106316291A (en) 2016-08-22 2016-08-22 Ballastless track bed concrete defect repairing material

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109734389A (en) * 2019-02-25 2019-05-10 中铁第四勘察设计院集团有限公司 A kind of unballasted track bed plate dew muscle repair materials and its application
CN110330259A (en) * 2019-07-09 2019-10-15 武汉铁路桥梁职业学院 A kind of complex accelerator of concrete and prepare super high-early concrete method
CN111018453A (en) * 2019-12-02 2020-04-17 中国公路工程咨询集团有限公司 Preparation method and application of composite modified cement repair material
CN111320450A (en) * 2020-04-02 2020-06-23 北京眷诚铁道工程技术有限公司 Self-compacting material for repairing railway concrete sleeper and preparation method and application thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102924021A (en) * 2012-10-30 2013-02-13 中铁二十三局集团轨道交通工程有限公司 Composite cement-based quick-setting dry material and mortar for maintaining ballastless tracks and method for preparing same
CN104402337A (en) * 2014-11-20 2015-03-11 中国铁道科学研究院铁道建筑研究所 Preparation and application of dry-mixed mortar for plate-type ballastless track self-compacting concrete
KR101579290B1 (en) * 2015-07-08 2015-12-21 주식회사 드림인테크 Concrete repair mortar, and method for constructing concrete structure using this same
CN105645886A (en) * 2015-12-30 2016-06-08 中国铁道科学研究院铁道建筑研究所 Rapid repairing material of seam between CRTS II shaping plate ballastless track boards

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102924021A (en) * 2012-10-30 2013-02-13 中铁二十三局集团轨道交通工程有限公司 Composite cement-based quick-setting dry material and mortar for maintaining ballastless tracks and method for preparing same
CN104402337A (en) * 2014-11-20 2015-03-11 中国铁道科学研究院铁道建筑研究所 Preparation and application of dry-mixed mortar for plate-type ballastless track self-compacting concrete
KR101579290B1 (en) * 2015-07-08 2015-12-21 주식회사 드림인테크 Concrete repair mortar, and method for constructing concrete structure using this same
CN105645886A (en) * 2015-12-30 2016-06-08 中国铁道科学研究院铁道建筑研究所 Rapid repairing material of seam between CRTS II shaping plate ballastless track boards

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109734389A (en) * 2019-02-25 2019-05-10 中铁第四勘察设计院集团有限公司 A kind of unballasted track bed plate dew muscle repair materials and its application
CN110330259A (en) * 2019-07-09 2019-10-15 武汉铁路桥梁职业学院 A kind of complex accelerator of concrete and prepare super high-early concrete method
CN111018453A (en) * 2019-12-02 2020-04-17 中国公路工程咨询集团有限公司 Preparation method and application of composite modified cement repair material
CN111320450A (en) * 2020-04-02 2020-06-23 北京眷诚铁道工程技术有限公司 Self-compacting material for repairing railway concrete sleeper and preparation method and application thereof

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Application publication date: 20170111