CN106348690A - Masonry mortar for underwater acid environment - Google Patents
Masonry mortar for underwater acid environment Download PDFInfo
- Publication number
- CN106348690A CN106348690A CN201610736793.2A CN201610736793A CN106348690A CN 106348690 A CN106348690 A CN 106348690A CN 201610736793 A CN201610736793 A CN 201610736793A CN 106348690 A CN106348690 A CN 106348690A
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- weight portion
- weight
- masonry mortar
- agent
- under water
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
- C04B40/0042—Powdery mixtures
-
- 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
- C04B2111/74—Underwater applications
Abstract
The invention discloses masonry mortar for an underwater acid environment. The masonry mortar comprises, by weight, 180-220 parts of common cement, 30-50 parts of special cement, 695-705 parts of natural medium sand, 20-30 parts of resin adhesive powder and 30-40 parts of special additives, wherein the special additives are mixed by, by weight, 2-5 parts of thickening agent, 0.5-1 part of super plasticizer, 5-8 parts of thixotropic agent, 12-15 parts of thickening time control agent and 5-8 parts of early strength agent. The masonry mortar has the advantages that by regulating the additives special for high-performance underwater masonry mortar and adding resin materials good in acid resistance, masonry mortar components are prevented from have reaction under acid conditions, the hardening and performance of the mortar cannot be affected, and the masonry mortar is less prone to dispersing, good in constructability, resistant to acid, capable of being normally hardened under water and high in strength under water operation conditions.
Description
Technical field
The present invention relates to one kind sour environment masonry mortar under water.
Background technology
Cement mortar or concrete under having water state or high disturbance, slurry meet water after can easily isolate (cement is easy to run off,
Sand material is easily separated), some components can participate in reacting in acid condition simultaneously, thus affecting to harden and concrete or mortar
Performance.In the past underwater concrete building build or damage reparation typically using building cofferdam, drain water, then placing concrete or
Masonry panel, motar are completing.This kind of engineering have the shortcomings that time-consuming, take a lot of work and expensive.Second method is using slipping
Groove, conduit, pump, drive bottom container etc. and normal concrete or mortar are transported to underwater casting or repair position and to complete.But the
The common underwater concrete that two kinds of methods are adopted or mortar are met water and are easily isolated, thus affect to harden and concrete or mortar property
Can, not as draining the method quality height that water is watered or repaired.
Draw water for overcoming routine to build cofferdam and construct again and both underwater castings that material property is bad or method for repairing and mending
Deficiency, (non-dispersible un-derwater concrete, is abbreviated as to have been developed over non-dispersible underwater concrete
Ndc), carry out pouring or repair and can not building cofferdam of underwater concrete building with it, do not drain water, directly enter in water
OK, and quality is reliable.Non-dispersible underwater concrete is to add some additional components in common underwater concrete, thus
Concrete is made to have a certain degree of dispersion resistance before obtaining hardening under water.And having the underwater concrete thin layer of certain flow rate
Repair or build by laying bricks or stones in plastering, then need with not disperseing hard mortar (abbreviation ndm) soon under water.Do not disperse under water soon hard mortar by cement
Mortar mixes special additive and forms.
Though existing public technology lists some technology path of masonry mortar special additive, proportionings and mutually speak on somebody's behalf under water
Bright, but effect is general in actual use, and there is no clear and definite construction technology and product and construction technology explanation, result in reality
Border using effect and having little significance.
Content of the invention
It is an object of the invention to provide one kind sour environment masonry mortar under water, to solve existing cement mortar in acidity
Under the conditions of participate in reaction, impact hardening and concrete or mortar performance issue.
The technical scheme is that one kind sour environment masonry mortar under water, by with
The component of lower weight proportion is constituted: ordinary cement 180～220 weight portion；Special cement 30～50 weight portion；Nature medium sand 695
～705 weight portions；Resin rubber powder 20～30 weight portion；Special additive 30～40 weight portion；Described special additive is by thickening
Agent 2～5 weight portion；Super plasticizer 0.5～1 weight portion；Thixotropic agent 5～8 weight portion；Adjustable solidification agent 12～15 weight portion；Early strength agent 5
～8 weight portions mix.
Preferably, described special cement is made up of the component of following weight proportion: sodium acetate 3～6 weight portion；Flyash
5.5～8.5 weight portions；Sodium lignin sulfonate 0.8 weight portion；Portland cement 55～68 weight portion of intensity 42.5.
Preferably, described thickening agent is selected from one of cellulose, cellulose ether, synthetic resin and synthetic resin derivant
Or it is several.It is highly preferred that described cellulose ether is hydroxypropyl methyl cellulose ether or ethoxyl methyl cellulose ether.
Preferably, described super plasticizer is selected from one of sulfate resin and sulfonate or two kinds.
Preferably, described thixotropic agent is selected from the layer silicate mineral of modified alta-mud, montmorillonite and aluminium-magnesium silicate
One or more.
Preferably, described adjustable solidification agent is made up of the component of following weight proportion: anhydrous citric acid 13～17 weight portion, anhydrous
Sodium pyrophosphate 28～32 weight portion, sodium tripolyphosphate 2.5～3.5 weight portion, pre-gelatinized starch 2～6 weight portion, sodium bentonite
28～30 weight portions, inorganic silicic acid magnalium gel 2.2～2.8 weight portion.
Preferably, described early strength agent is made up of the component of following weight proportion: sour metal bromide 13～26 weight portion；Partially
Sodium aluminate 26～36 weight portion；Sour metal hydroxidess 25～45 weight portion；Silica 1 8～25 weight portion；Alcaminess are organic
Thing 1.8～2.5 weight portion；Described acid metal bromide is one of nabr, kbr, libr, and described acid metal hydroxidess are
Naoh or koh, described hydramine type organic is triethanolamine or triisopropanolamine.
Special additive of the present invention has following two usings method:
1st, by mortar factory according to the ratio of additive designing, produce masonry mortar special additive under water, this additive is pure
Powder body material, after automatic equipment physical mixed, scene is proportionally spiked in the masonry cement mortar designing,
Proportionally add water after stirring using.
2nd, according to actual building site situation and needs, special outer according to masonry cement mortar and under water masonry mortar by mortar factory
Plus the proportioning of agent, the premixing mortar of quality of production stable homogeneous in factory, after transporting scene, ratio as requested adds water
After stirring using.
The invention has the beneficial effects as follows:
By a kind of special additive adjustment of masonry mortar under high-performance water, it is simultaneously introduced acid resistance preferable resinae material
Material, it is to avoid masonry mortar component reacts in acid condition, the performance of impact hardening and mortar, final make to build sand by laying bricks or stones
Slurry has the advantages that to be difficult dispersion, good construction under the conditions of submersible, acidproof, normal hardening and intensity are high under water.
In special additive, thickening agent can increase the cohesiveness of mixing thing, thus giving dividing regardless of loose sand slurry is anti-under water
Scattered, education resistance energy.Super plasticizer can increase fluidity and the workability of mixing thing, thus give material preferably Self-leveling,
Self-compacting ability.Conventional super plasticizer is mainly sulfate resin and Sulfonateses, and why such material has to resist under water is divided
The performance dissipating and not isolating.By the admixture of special cement and the collective effect of adjustable solidification agent, impart such material early-strong-fast-hard
Performance.By adjusting the consumption of the type, volume and special cement and adjustable solidification agent of thickening material in additive it is ensured that mix
Good mortar, during band water transmission, will not occur segregation phenomenon；Meanwhile, submersible has preferable application property,
Having under water and state of disturbance can not be discrete, and short-term quickly forms and hardens well, and later strength conservation rate is preferable.
Specific embodiment
The embodiment that here is recorded is the specific specific embodiment of the present invention, for the design of the present invention is described, all
It is explanatory and exemplary, should not be construed as the restriction to embodiment of the present invention and the scope of the invention.Except here record
Implement exception, those skilled in the art can also be based on the application claims and description disclosure of that using aobvious
The other technical schemes being clear to, these technical schemes include any obvious using making of the embodiment that here is recorded
The technical scheme of substitutions and modifications.
Embodiment 1
Sour environment masonry mortar is made up of the present embodiment the component of following weight proportion under water: ordinary cement 200 weight portion；
Special cement 40 weight portion；Nature medium sand 700 weight portion；Resin rubber powder 25 weight portion；Special additive 35 weight portion.Described spy
Plant cement to be made up of the component of following weight proportion: sodium acetate 3 weight portion；Flyash 8.5 weight portion；Sodium lignin sulfonate 0.8
Weight portion；Portland cement 55 weight portion of intensity 42.5.
The present embodiment special additive is made up of the component of following weight proportion: thickening agent 2 weight portion；Super plasticizer 1 weight
Amount part；Thixotropic agent 5 weight portion；Adjustable solidification agent 12 weight portion；Early strength agent 8 weight portion.
Wherein: thickening agent is cellulose；Super plasticizer is sulfate resin；Thixotropic agent is modified alta-mud；
Described adjustable solidification agent is made up of the component of following weight proportion: anhydrous citric acid 13 weight portion, anhydrous sodium pyrophosphate 32 weight
Part, sodium tripolyphosphate 2.5 weight portion, pre-gelatinized starch 6 weight portion, sodium bentonite 28 weight portion, inorganic silicic acid magnalium gel
2.8 weight portion.
Described early strength agent is made up of the component of following weight proportion: nabr 13 weight portion；Sodium metaaluminate 36 weight portion；
Naoh 25 weight portion；Silicon dioxide 25 weight portion；Triethanolamine 1.8 weight portion.
By mortar factory according to the ratio of additive designing, produce masonry mortar special additive under water, this additive is
Pure powder body material, can obtain after automatic equipment physical mixed.During use, scene is proportionally spiked into the block designing
Build (ordinary cement, the mixing of special cement, nature medium sand and resin rubber powder) in cement mortar, proportionally add water and stir
Afterwards using.
Embodiment 2
Sour environment masonry mortar is made up of the present embodiment the component of following weight proportion under water: ordinary cement 180 weight portion；
Special cement 50 weight portion；Nature medium sand 705 weight portion；Resin rubber powder 18 weight portion；Special additive 30 weight portion.Described spy
Plant cement to be made up of the component of following weight proportion: sodium acetate 6 weight portion；Flyash 5.5 weight portion；Sodium lignin sulfonate 0.8
Weight portion；Portland cement 68 weight portion of intensity 42.5.
The present embodiment special additive is made up of the component of following weight proportion: thickening agent 5 weight portion；Super plasticizer 0.5
Weight portion；Thixotropic agent 8 weight portion；Adjustable solidification agent 15 weight portion；Early strength agent 5 weight portion.
Wherein: thickening agent is synthetic resin；Super plasticizer is sodium sulfonate；Thixotropic agent is montmorillonite；
Described adjustable solidification agent is made up of the component of following weight proportion: anhydrous citric acid 17 weight portion, anhydrous sodium pyrophosphate 28 weight
Part, sodium tripolyphosphate 3.5 weight portion, pre-gelatinized starch 2 weight portion, sodium bentonite 30 weight portion, inorganic silicic acid magnalium gel
2.2 weight portion.
Described early strength agent is made up of the component of following weight proportion: kbr 26 weight portion；Sodium metaaluminate 26 weight portion；koh
45 weight portions；Silica 18 weight portion；Triisopropanolamine 2.5 weight portion.
Preparation method and use are with embodiment 1.
Embodiment 3
Sour environment masonry mortar is made up of the present embodiment the component of following weight proportion under water: ordinary cement 220 weight portion；
Special cement 30 weight portion；Nature medium sand 695 weight portion；Resin rubber powder 13 weight portion；Special additive 40 weight portion.Described spy
Plant cement to be made up of the component of following weight proportion: sodium acetate 4 weight portion；Flyash 6 weight portion；Sodium lignin sulfonate 0.8 weight
Amount part；Portland cement 60 weight portion of intensity 42.5.
The present embodiment special additive is made up of the component of following weight proportion: thickening agent 3 weight portion；Super plasticizer 0.6
Weight portion；Thixotropic agent 6 weight portion；Adjustable solidification agent 12.5 weight portion；Early strength agent 6 weight portion.
Wherein: thickening agent is hydroxypropyl methyl cellulose ether；Super plasticizer is sulfate resin；Thixotropic agent is bentone
Soil；
Described adjustable solidification agent is made up of the component of following weight proportion: anhydrous citric acid 14 weight portion, anhydrous sodium pyrophosphate 29 weight
Part, sodium tripolyphosphate 2.8 weight portion, pre-gelatinized starch 3 weight portion, sodium bentonite 29 weight portion, inorganic silicic acid magnalium gel
2.4 weight portion.
Described early strength agent is made up of the component of following weight proportion: libr 15 weight portion；Sodium metaaluminate 28 weight portion；
Naoh 30 weight portion；Silicon dioxide 20 weight portion；Triethanolamine 2 weight portion.
Preparation method and use are with embodiment 1.
Embodiment 4
Sour environment masonry mortar is made up of the present embodiment the component of following weight proportion under water: ordinary cement 190 weight portion；
Special cement 36 weight portion；Nature medium sand 700 weight portion；Resin rubber powder 16 weight portion；Special additive 38 weight portion.Described spy
Plant cement to be made up of the component of following weight proportion: sodium acetate 5 weight portion；Flyash 6.5 weight portion；Sodium lignin sulfonate 0.8
Weight portion；Portland cement 62 weight portion of intensity 42.5.
The present embodiment special additive is made up of the component of following weight proportion: thickening agent 4 weight portion；Super plasticizer 0.8
Weight portion；Thixotropic agent 7 weight portion；Adjustable solidification agent 14 weight portion；Early strength agent 7 weight portion.
Wherein: thickening agent is ethoxyl methyl cellulose ether；Super plasticizer is sodium sulfonate；Thixotropic agent is the layer of aluminium-magnesium silicate
Shape silicate mineral；
Described adjustable solidification agent is made up of the component of following weight proportion: anhydrous citric acid 15 weight portion, anhydrous sodium pyrophosphate 30 weight
Part, sodium tripolyphosphate 3 weight portion, pre-gelatinized starch 4 weight portion, sodium bentonite 29.5 weight portion, inorganic silicic acid magnalium gel
2.5 weight portion.
Described early strength agent is made up of the component of following weight proportion: kbr 20 weight portion；Sodium metaaluminate 30 weight portion；koh
35 weight portions；Silicon dioxide 22 weight portion；Triisopropanolamine 2.2 weight portion.
Preparation method and use are with embodiment 1.
Embodiment 5
Sour environment masonry mortar is made up of the present embodiment the component of following weight proportion under water: ordinary cement 210 weight portion；
Special cement 32 weight portion；Nature medium sand 702 weight portion；Resin rubber powder 14 weight portion；Special additive 32 weight portion.Described spy
Plant cement to be made up of the component of following weight proportion: sodium acetate 5.5 weight portion；Flyash 8 weight portion；Sodium lignin sulfonate 0.8
Weight portion；Portland cement 65 weight portion of intensity 42.5.
The present embodiment special additive is made up of the component of following weight proportion: thickening agent 2.62 weight portion；Super plasticizer
0.65 weight portion；Thixotropic agent 6.53 weight portion；Adjustable solidification agent 13.06 weight portion；Early strength agent 6.53 weight portion.
Wherein:
Thickening agent is ethoxyl methyl cellulose ether；Super plasticizer is sodium sulfonate；Thixotropic agent is montmorillonite；
Described adjustable solidification agent is made up of the component of following weight proportion: anhydrous citric acid 16 weight portion, anhydrous sodium pyrophosphate 31 weight
Part, sodium tripolyphosphate 3.2 weight portion, pre-gelatinized starch 5 weight portion, sodium bentonite 29.8 weight portion, inorganic silicic acid magnalium coagulate
Glue 2.6 weight portion.
Described early strength agent is made up of the component of following weight proportion: nabr 22 weight portion；Sodium metaaluminate 34 weight portion；
Naoh 42 weight portion；Silicon dioxide 24 weight portion；Triisopropanolamine 2.4 weight portion.
Preparation method and use are with embodiment 1.
Comparative example 1- comparative example 5
Remove resin glue powder component in the corresponding formula of embodiment 1-5, obtain common masonry mortar.
Comparative example 6- comparative example 10
Remove special additive component in the corresponding formula of embodiment 1-5, obtain common masonry mortar.
The performance test results:
Alcohol coagulation test: when the 8th chapter condensation in jgj/t 70-2009 " building mortar basic performance tests method standard " is pressed in test
Between assay method carry out.
Comprcssive strength: test is pressed the 9th chapter in jgj/t 70-2009 " building mortar basic performance tests method standard " and stood
Cube compressive strength test assay method is carried out.
Adhesive tensile resistance intensity: test is pressed the 10th in jgj/t 70-2009 " building mortar basic performance tests method standard "
Chapter tensile bond strength test assay method is carried out.
Draw masonry mortar performance through experimental study, Main Conclusions is as follows.
1st, sour environment masonry mortar is shorter than the ordinary mortar presetting period under water, only 40～50min, and this is to having one
The underwater construction quality of constant current speed is favourable.The presetting period of ordinary mortar is 76min.
2nd, the comprcssive strength of sour environment masonry mortar is higher than to be not added with the ordinary mortar of special cement, 28d age under water
High more than 30%, 180d age high by more than 45%.
3rd, under water sour environment adhesion strength in masonry mortar 3d water up to 0.85mpa, this is with ordinary mortar 3d
The adhesion strength 1.1mpa of land natural curing is more or less the same.Can ensure not disperse under water that hard mortar will not be by circulating water soon
Wash away.
Each technical characteristic of above-mentioned disclosure is not limited to disclosed combining with further feature, and those skilled in the art are also
The other that can be carried out according to the purpose of invention between each technical characteristic combines, and is defined by the purpose realizing the present invention.
Claims (8)
1. one kind sour environment masonry mortar under water, is made up of the component of following weight proportion: ordinary cement 180～220 weight
Amount part；Special cement 30～50 weight portion；Nature medium sand 695～705 weight portion；Resin rubber powder 20～30 weight portion；Special outer
Plus agent 30～40 weight portion；Described special additive is by thickening agent 2～5 weight portion；Super plasticizer 0.5～1 weight portion；Thixotropic agent
5～8 weight portions；Adjustable solidification agent 12～15 weight portion；Early strength agent 5～8 weight portion mixes.
2. the masonry mortar of sour environment under water according to claim 1 is it is characterised in that described special cement is by following
The component of weight proportion is constituted: sodium acetate 3～6 weight portion；Flyash 5.5～8.5 weight portion；Sodium lignin sulfonate 0.8 weight
Part；Portland cement 55～68 weight portion of intensity 42.5.
3. the masonry mortar of sour environment under water according to claim 2 is it is characterised in that described thickening agent is selected from fiber
One or more of element, cellulose ether, synthetic resin and synthetic resin derivant.
4. the masonry mortar of sour environment under water according to claim 3 is it is characterised in that described cellulose ether is hydroxypropyl
Ylmethyl cellulose ether or ethoxyl methyl cellulose ether.
5. the masonry mortar of sour environment under water according to claim 4 is it is characterised in that described super plasticizer is selected from sulphur
Change one of resin and sulfonate or two kinds.
6. the masonry mortar of sour environment under water according to claim 5 is it is characterised in that described thixotropic agent is selected from modification
One or more of layer silicate mineral of bentonite, montmorillonite and aluminium-magnesium silicate.
7. the masonry mortar of sour environment under water according to any one of claim 1-6 is it is characterised in that described adjustable solidification agent
It is made up of the component of following weight proportion: anhydrous citric acid 13～17 weight portion, anhydrous sodium pyrophosphate 28～32 weight portion, trimerization
Sodium phosphate 2.5～3.5 weight portion, pre-gelatinized starch 2～6 weight portion, sodium bentonite 28～30 weight portion, inorganic silicic acid magnalium
Gel 2.2～2.8 weight portion.
8. the masonry mortar of sour environment under water according to claim 7 is it is characterised in that described early strength agent is by following heavy
The component of amount proportioning is constituted: sour metal bromide 13～26 weight portion；Sodium metaaluminate 26～36 weight portion；Sour metal hydroxidess
25～45 weight portions；Silica 1 8～25 weight portion；Hydramine type organic 1.8～2.5 weight portion；Described acid metal bromide
For one of nabr, kbr, libr, described acid metal hydroxidess are naoh or koh, and described hydramine type organic is three second
Hydramine or triisopropanolamine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610736793.2A CN106348690B (en) | 2016-08-26 | 2016-08-26 | A kind of underwater acidic environment masonry mortar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610736793.2A CN106348690B (en) | 2016-08-26 | 2016-08-26 | A kind of underwater acidic environment masonry mortar |
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| CN106348690A true CN106348690A (en) | 2017-01-25 |
| CN106348690B CN106348690B (en) | 2019-10-11 |
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| CN201610736793.2A Active CN106348690B (en) | 2016-08-26 | 2016-08-26 | A kind of underwater acidic environment masonry mortar |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108249868A (en) * | 2018-04-24 | 2018-07-06 | 王亮 | Thermal insulation mortar for building |
| CN108341629A (en) * | 2018-03-05 | 2018-07-31 | 沙焕焕 | As bottom reinforcing regardless of aproll soil and its construction method |
| CN110436848A (en) * | 2019-08-12 | 2019-11-12 | 河南城建学院 | A kind of cement composition, foamed cement slurry, foam concrete pour material and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108341629A (en) * | 2018-03-05 | 2018-07-31 | 沙焕焕 | As bottom reinforcing regardless of aproll soil and its construction method |
| CN108249868A (en) * | 2018-04-24 | 2018-07-06 | 王亮 | Thermal insulation mortar for building |
| CN110436848A (en) * | 2019-08-12 | 2019-11-12 | 河南城建学院 | A kind of cement composition, foamed cement slurry, foam concrete pour material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106348690B (en) | 2019-10-11 |
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