CN108439909A - It is a kind of to be used to repair modified mortar of drainage pipeline and preparation method thereof - Google Patents
It is a kind of to be used to repair modified mortar of drainage pipeline and preparation method thereof Download PDFInfo
- Publication number
- CN108439909A CN108439909A CN201810425011.2A CN201810425011A CN108439909A CN 108439909 A CN108439909 A CN 108439909A CN 201810425011 A CN201810425011 A CN 201810425011A CN 108439909 A CN108439909 A CN 108439909A
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- China
- Prior art keywords
- parts
- water
- modified mortar
- drainage pipeline
- dispersant
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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
- C04B28/02—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 containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland 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
- C04B2111/72—Repairing or restoring existing buildings or building materials
Abstract
Invention is related to a kind of modified mortar for repairing drainage pipeline, including following component：Aggregate, high-strength cement, reinforcing agent, stabilizer, additives；Wherein, the parts by weight difference of above-mentioned each component is as follows：20~35 parts of aggregate；10~20 parts of high-strength cement；5~20 parts of reinforcing agent；2~5 parts of stabilizer；8~16 parts of additives；The stabilizer includes accelerator, water-reducing agent, and the parts by weight of wherein accelerator and water-reducing agent are respectively：1~4 part, 1~4 part；The additives include dispersant, cellulose ether and water, and the parts by weight of wherein dispersant, cellulose ether and water are respectively：1~2 part of dispersant；1~2 part of cellulose ether；8~12 parts of water.It has the advantages that component selection rationally, mortar from heavy and light, environmental-protecting performance is excellent, easy for operation, production cost is low etc., current flowing line leakage can be effectively solved, the technical issues of leading to traffic congestion and how effectively to extend underground piping service life.
Description
Technical field
The present invention relates to drainage pipeline recovery technique field more particularly to a kind of modified mortars for repairing drainage pipeline
And preparation method thereof.The modified mortar in humidity or can have water to construct, and take the repair technology not excavated,
The impervious corrosion resistance for making up or repairing pipeline material, extends the service life of pipeline.
Background technology
In recent years, Chinese Urbanization carries out fast development, underground pipe gallery infrastructure Rapid Expansion, drainage pipeline is repaiied
Multiple and maintenance difficulty is increasing.In addition, it is increasingly tight to be completed the phenomenon that aging, destroy occur using the pipeline of a period of time
Weight, causes to seriously threaten to the safety of neighbouring buildings or structures, contaminated soil or underground water.Correlation study statistical data shows
China's Drainage System Construction in process of modernization still in the state of relatively lagging behind, every year caused by pipe leakage directly or
Indirect economic loss is up to more than one hundred million members.
Several years in past, frequently with pipe leakage restorative procedure be to excavate pipeline to carry out leak stopping, this method can destroy city
The integrality of road influences the road-ability of road, also result in urban traffic blocking, influence resident it is daily go out.Traditional
Pipe repairing method is to excavate one new pipeline of laying (old pipeline is scrapped).But urban drainage pipeline many places are in downtown prosperity
Location has not only broken up urban road according to traditional pipe repairing method, while aggravating urban transportation and blocking, to construction week
The resident living on side and retail shop's business activity impact.With the fast development of urban construction, city size and subdrainage
The difficulty of the infrastructure Rapid Expansion such as pipe network, urban drainage pipe network management and repair is also increasing.Based on this, how to provide
One kind, which can quickly repair drainage pipeline, has research significance and realistic meaning.
Invention content
It is an object of the invention to：Overcome above-mentioned deficiency existing in the prior art, provides a kind of for repairing drainpipe
The modified mortar in road and preparation method thereof, with component selection rationally, mortar from heavy and light, environmental-protecting performance is excellent, operates with
How effectively prolongedly the convenient, advantages such as production cost is low, can effectively solve current flowing line leakage, lead to traffic congestion and
The technical issues of lower pipeline service life.
In order to achieve the above object, the present invention adopts the following technical scheme that realization：
A kind of modified mortar for repairing drainage pipeline, which is characterized in that the modified mortar includes following component：Bone
Material, high-strength cement, reinforcing agent, stabilizer, additives；Wherein, the parts by weight difference of above-mentioned each component is as follows：
20~35 parts of aggregate；10~20 parts of high-strength cement；5~20 parts of reinforcing agent；2~5 parts of stabilizer；Additives 8~16
Part；
The stabilizer includes accelerator, water-reducing agent, and the parts by weight of wherein accelerator and water-reducing agent are respectively：1~4
Part, 1~4 part；
The additives include dispersant, cellulose ether and water, the wherein parts by weight of dispersant, cellulose ether and water point
It is not：1~2 part of dispersant；1~2 part of cellulose ether；8~12 parts of water.
As advanced optimizing for said program, the fineness of the aggregate used in the aggregate is 20~60 mesh.
As advanced optimizing for said program, the high-strength cement uses strength grade for 52.5 early-strong-fast-hard silicates
Cement.
As advanced optimizing for said program, the reinforcement materials are poly- hydrogen ester, one kind in acrylate or two
The mixture of kind.
As advanced optimizing for said program, the accelerator is one kind in potassium silicate class, aluminate class；It is described to subtract
Aqua is one kind in sodium lignin sulfonate, polycarboxylate water-reducer.
As advanced optimizing for said program, the cellulose ether is hydroxyethylmethylcellulose, carboxymethyl cellulose
Two kinds of mixtures；The dispersant is polyethylene wax.
The preparation method of the above-mentioned modified mortar for repairing drainage pipeline of the invention includes the following steps：
1) count in parts by weight, first by accelerator, the water-reducing agent in stabilizer take respectively 1-4 parts, 1-4 parts give over to it is standby
With；Secondly dispersant, cellulose ether and water in additives are stirred evenly according to 1~2 part, 1~2 part, 8-12 parts give over to it is spare；
20-35 parts of aggregate selection, 10-20 parts of high-strength cement are made again spare；Poly- hydrogen ester and/or acrylate are chosen as reinforcing agent,
And selected 5-20 parts give over to it is spare；
2) each component obtained in step 1) is uniformly mixed, and adds 20-25 parts of stirring 20-30min of water, make it uniformly
Obtain modified mortar.
It is using the present invention to be had the advantages that for repairing modified mortar of drainage pipeline and preparation method thereof：
(1) material of the invention can underwater construction, since this material is insensitive to water, constructing under water still, there have to be super
By force, close cohesive force can construct under water.
(2) material antiseptic of the invention is strong, has the corrosion-resisting function of high intensity, can cope with the corrosion of seawater, sewage etc..
(3) materials ' durability of the invention is good, can resist the interaction such as dry and wet, cold and hot, freeze thawing caused by climate cycle
The durations such as effect and flow, oceanic tide, waste water, electrolysis or intermittent corrosiveness, durability are particularly good.
(4) material structure of the invention is repaired rapid, is carried out structural strengthening to tubing, is improved rigidity and the carrying of tubing
Power makes up in current trenchless technology to the vacancy of pipeline configuration reparation.
(5) material function repairing effect of the invention is good, effectively reduces the surface roughness of tubing, improves pipe
Material discharge capacity.
(6) material rapid construction of the invention, composite material can accomplish rapid construction, simplify construction method.
(7) material of the present invention can apply in moist underground piping, reduce cost, and material mechanical performance is excellent, maintenance
Period is short, extends underground piping service life, and construction is simple has very high application value.
Description of the drawings
Attached drawing 1 is the flow diagram of modified mortar preparation method of the present invention for repairing drainage pipeline.
Attached drawing 2 is the result for the intensity test that modified mortar is made in the embodiment of the present invention 1.
Specific implementation mode
Modified mortars and preparation method thereof of the 1-2 to the present invention for repairing drainage pipeline is made with detailed below in conjunction with the accompanying drawings
Explanation.
A kind of modified mortar for repairing drainage pipeline, which is characterized in that the modified mortar includes following component：Bone
Material, high-strength cement, reinforcing agent, stabilizer, additives；Wherein, the parts by weight difference of above-mentioned each component is as follows：
20~35 parts of aggregate；10~20 parts of high-strength cement；5~20 parts of reinforcing agent；2~5 parts of stabilizer；Additives 8~16
Part；
The stabilizer includes accelerator, water-reducing agent, and the parts by weight of wherein accelerator and water-reducing agent are respectively：1~4
Part, 1~4 part；
The additives include dispersant, cellulose ether and water, the wherein parts by weight of dispersant, cellulose ether and water point
It is not：1~2 part of dispersant；1~2 part of cellulose ether；8~12 parts of water.
The fineness of aggregate used in the aggregate is 20~60 mesh.
The high-strength cement uses strength grade for 52.5 early-strong-fast-hard portland cements.
The reinforcement materials are the mixture of one or both of poly- hydrogen ester, acrylate.
The accelerator is one kind in potassium silicate class, aluminate class；The water-reducing agent is sodium lignin sulfonate, polycarboxylic acids
One kind in water-reducing agent.
The cellulose ether be hydroxyethylmethylcellulose, carboxymethyl cellulose two kinds of mixtures；The dispersant is
Polyethylene wax.
The preparation method of the above-mentioned modified mortar for repairing drainage pipeline of the invention includes the following steps：
1) count in parts by weight, first by accelerator, the water-reducing agent in stabilizer take respectively 1-4 parts, 1-4 parts give over to it is standby
With；Secondly dispersant, cellulose ether and water in additives are stirred evenly according to 1~2 part, 1~2 part, 8-12 parts give over to it is spare；
20-35 parts of aggregate selection, 10-20 parts of high-strength cement are made again spare；Poly- hydrogen ester and/or acrylate are chosen as reinforcing agent,
And selected 5-20 parts give over to it is spare；
2) each component obtained in step 1) is uniformly mixed, and adds 20-25 parts of stirring 20-30min of water, make it uniformly
Obtain modified mortar.
The physicochemical property parameter of modified mortar of the present invention is further analyzed with specific embodiment below (with reinforcing agent using poly-
For hydrogen ester)：
Embodiment 1, the present invention repair the modified mortar of drainage pipeline leakage, its each raw material component is by weight ratio such as
Under：
25 parts of aggregate；10 parts of high-strength cement；2 parts of stabilizer；8 parts of additives；
The raw material of the stabilizer is as follows by weight ratio：
1 part of accelerator；1 part of water-reducing agent；
The raw material of the additives is as follows by weight ratio：
1 part of dispersant；1 part of cellulose ether；8 parts of water.
Poly- hydrogen ester addition content is respectively 0,5 parts, 10 parts, 15 parts, 20 parts, is added in mortar, the modification sand that will be prepared
Slurry is customized to 40mm*40mm*160mm test blocks according to standard gauge, is conserved under standard conditions.
The modified mortar conserved under standard conditions is subjected to compression test, the result of intensity test is shown in attached drawing 2.
As seen from Figure 1, after poly- hydrogen ester is added, the compression strength of Polymer-Modified Mortar all significantly rises, and ascensional range reaches
4-5 times, the requirement of high-strength mortar is reached, far beyond the demand of specification.With the increase of poly- hydrogen ester amount, compression strength first on
It rises, then continuously decreases, until stablizing, with the growth of age, the intensity of mortar gradually increases.
Embodiment 2, the present invention repair the modified mortar of drainage pipeline leakage, its each raw material component is by weight ratio such as
Under：
30 parts of aggregate；20 parts of high-strength cement；10 parts of reinforcing agent；4 parts of stabilizer；6 parts of additives；
The raw material of the stabilizer is as follows by weight ratio：
2 parts of accelerator；2 parts of water-reducing agent；
The raw material of the additives is as follows by weight ratio：
1 part of dispersant；1 part of cellulose ether；10 parts of water.
The modified mortar prepared is customized to 40mm*40mm*160mm test blocks according to standard gauge, is conserved under standard conditions,
One group of conventional polymeric modifier mortar is prepared using standard material simultaneously, test block is equally made and is conserved.Test for tensile strength knot
Fruit such as the following table 1.
1 modified mortar tensile strength test result of table
| Mortar classification | 3d | 7d | 28d |
| Conventional polymeric modifier mortar | 0.21 | 0.53 | 0.78 |
| The modified mortar that the present invention selects | 5.6 | 6.2 | 6.8 |
As it can be seen from table 1 the tensile strength of modified mortar compares conventional polymeric modifier mortar, there is huge promotion,
With the increase of curing age, compression strength gradually increases.
Embodiment 3, the present invention repair the modified mortar of drainage pipeline leakage, its each raw material component is by weight ratio such as
Under：
23 parts of aggregate；15 parts of high-strength cement；15 parts of reinforcing agent；2 parts of stabilizer；5 parts of additives；
The raw material of the stabilizer is as follows by weight ratio：
1 part of accelerator；1 part of water-reducing agent；
The raw material of the additives is as follows by weight ratio：
1 part of dispersant；1 part of cellulose ether；12 parts of water.
Modified mortar is made according to above-mentioned match ratio.One group of common polymer modification sand is prepared using standard sample simultaneously
Slurry.The corrosion resistance and durability of modified mortar are to verify an important part for material property.3 diameters are made in laboratory
50cm, the pipeline of length 50cm, is conserved according to normality condition.After pipeline reaches design strength, impregnated in sanitary sewage
7d.After sewage effluent, in the case that pipeline still has moisture, test pipe 1 is sprayed to poly- hydrogen ester mortar material with spraying equipment
On pipeline, test pipe 2 sprays to common Polymer-Modified Mortar on pipeline, and test pipe 3 is without any processing, after 3d
3 test pipe infiltration coefficients are measured, specific testing result see the table below 2, in addition, pipeline that 2 have been repaired and 1 are not made to locate
The pipeline of reason is placed in sewage after immersion 14d and observes its inside diameter surface situation whether there is or not loose phenomena such as peeling off pit slot, and it is resistance to observe its
Corrosivity, the result of specific corrosion-resistant detection is same to see the table below 2.
2 modified mortar anti-corrosion performance test of table
From table 2 it can be seen that adding the mortar permeability performance after poly- hydrogen ester, corrosion resistance is significantly better than that general polymer
Modified mortar.
This hair can be understood and applied the above description of the embodiments is intended to facilitate those skilled in the art
It is bright.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiment without having to go through creative labor.Therefore, the present invention is not limited to implementations here
Example, those skilled in the art's announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be
Within protection scope of the present invention.
Claims (7)
1. a kind of modified mortar for repairing drainage pipeline, which is characterized in that the modified mortar includes following component：Bone
Material, high-strength cement, reinforcing agent, stabilizer, additives；Wherein, the parts by weight difference of above-mentioned each component is as follows：
20~35 parts of aggregate；10~20 parts of high-strength cement；5~20 parts of reinforcing agent；2~5 parts of stabilizer；8~16 parts of additives；
The stabilizer includes accelerator, water-reducing agent, and the parts by weight of wherein accelerator and water-reducing agent are respectively：1~4 part, 1~
4 parts；
The additives include dispersant, cellulose ether and water, wherein the parts by weight difference of dispersant, cellulose ether and water
For：1~2 part of dispersant；1~2 part of cellulose ether；8~12 parts of water.
2. the new modified mortar according to claim 1 for repairing drainage pipeline, it is characterised in that：Used in the aggregate
The fineness of aggregate is 20~60 mesh.
3. the new modified mortar according to claim 2 for repairing drainage pipeline, it is characterised in that：The high-strength cement is adopted
It is 52.5 early-strong-fast-hard portland cements with strength grade.
4. the new modified mortar according to claim 3 for repairing drainage pipeline, it is characterised in that：The reinforcement materials
For the mixture of one or both of poly- hydrogen ester, acrylate.
5. the new modified mortar according to claim 4 for repairing drainage pipeline, it is characterised in that：The accelerator is silicon
One kind in sour potassium class, aluminate class；The water-reducing agent is one kind in sodium lignin sulfonate, polycarboxylate water-reducer.
6. the new modified mortar according to claim 5 for repairing drainage pipeline, it is characterised in that：The cellulose ether is
Two kinds of mixtures of hydroxyethylmethylcellulose, carboxymethyl cellulose；The dispersant is polyethylene wax.
7. a kind of a kind of preparation side for repairing the modified mortar of drainage pipeline according to any one of claim 1-6
Method, which is characterized in that the preparation method includes：
1) count in parts by weight, first by accelerator, the water-reducing agent in stabilizer take respectively 1-4 parts, 1-4 parts give over to it is spare；Its
It is secondary dispersant, cellulose ether and water in additives are stirred evenly according to 1~2 part, 1~2 part, 8-12 parts give over to it is spare；Again will
20-35 parts of aggregate selection, 10-20 parts of high-strength cement are made spare；Poly- hydrogen ester and/or acrylate are chosen as reinforcing agent, and will
Its 5-20 parts of selection gives over to spare；
2) each component obtained in step 1) is uniformly mixed, and adds 20-25 parts of stirring 20-30min of water, it is made uniformly to obtain
Modified mortar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810425011.2A CN108439909A (en) | 2018-05-07 | 2018-05-07 | It is a kind of to be used to repair modified mortar of drainage pipeline and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810425011.2A CN108439909A (en) | 2018-05-07 | 2018-05-07 | It is a kind of to be used to repair modified mortar of drainage pipeline and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN108439909A true CN108439909A (en) | 2018-08-24 |
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|---|---|---|---|
| CN201810425011.2A Pending CN108439909A (en) | 2018-05-07 | 2018-05-07 | It is a kind of to be used to repair modified mortar of drainage pipeline and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109305780A (en) * | 2018-09-10 | 2019-02-05 | 北京市市政工程研究院 | Pipeline sprays repair materials, preparation method and the construction technology that pipeline rehabilitation is carried out using the material |
| CN111689741A (en) * | 2020-04-22 | 2020-09-22 | 北京鼎吉建筑工程有限公司 | Novel pipeline anticorrosion high-performance cement-based composite material of anticorrosion mortar and inorganic aluminate for underground sewage pipeline |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014121736A1 (en) * | 2013-02-07 | 2014-08-14 | 江苏东浦管桩有限公司 | Pre-stress corrosion-resistant tubular pile used in special coastal geological conditions and manufacturing method thereof |
| CN107759167A (en) * | 2017-10-19 | 2018-03-06 | 北京市市政工程研究院 | A kind of sprayed on material for repairing underground piping seepage and its preparation method and application |
-
2018
- 2018-05-07 CN CN201810425011.2A patent/CN108439909A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014121736A1 (en) * | 2013-02-07 | 2014-08-14 | 江苏东浦管桩有限公司 | Pre-stress corrosion-resistant tubular pile used in special coastal geological conditions and manufacturing method thereof |
| CN107759167A (en) * | 2017-10-19 | 2018-03-06 | 北京市市政工程研究院 | A kind of sprayed on material for repairing underground piping seepage and its preparation method and application |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109305780A (en) * | 2018-09-10 | 2019-02-05 | 北京市市政工程研究院 | Pipeline sprays repair materials, preparation method and the construction technology that pipeline rehabilitation is carried out using the material |
| CN109305780B (en) * | 2018-09-10 | 2021-03-12 | 北京市市政工程研究院 | Pipeline spraying repair material, preparation method and construction process for pipeline repair by using pipeline spraying repair material |
| CN111689741A (en) * | 2020-04-22 | 2020-09-22 | 北京鼎吉建筑工程有限公司 | Novel pipeline anticorrosion high-performance cement-based composite material of anticorrosion mortar and inorganic aluminate for underground sewage pipeline |
| CN111689741B (en) * | 2020-04-22 | 2021-03-05 | 北京鼎吉建筑工程有限公司 | Anticorrosion mortar inorganic aluminate pipeline anticorrosion high-performance cement-based composite material for underground sewage pipeline |
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Application publication date: 20180824 |