CN109776014A - A kind of two-component corrosion inhibitor and its preparation and application for alkali-free quick-coagulant - Google Patents
A kind of two-component corrosion inhibitor and its preparation and application for alkali-free quick-coagulant Download PDFInfo
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- CN109776014A CN109776014A CN201910120562.2A CN201910120562A CN109776014A CN 109776014 A CN109776014 A CN 109776014A CN 201910120562 A CN201910120562 A CN 201910120562A CN 109776014 A CN109776014 A CN 109776014A
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Abstract
The present invention relates to concrete admixture fields, a kind of two-component corrosion inhibitor for alkali-free quick-coagulant of disclosure of the invention, it is made of the raw material of following mass percent: component A, soap powder 1-10%, water 90-99%, B component, stirring container is added in water 90-99% by stannous chloride 0.08-0.2%, and 10 DEG C of 1-10% soap powder, water temperature -30 DEG C of dissolutions is added, it stirs dissolution in 20 minutes and obtains the component A of the corrosion inhibitor for alkali-free quick-coagulant, spare stannous chloride pack is B component；The corrosion inhibitor for being used for alkali-free quick-coagulant is added in alkali-free quick-coagulant and is uniformly mixed, the 1-2% that gross mass is accounted for for the two-component corrosion inhibitor of alkali-free quick-coagulant.Compared with prior art; two-component corrosion inhibitor produced by the present invention for alkali-free quick-coagulant; for in alkali-free quick-coagulant; the cathodic region that steel product can be adsorbed on forms protective film; and in anode region to the Surface Creation passivating film of steel product; slow down the cathodic process of electrochemical reaction, corrosion of the alkali-free quick-coagulant to equipment, storage equipment can be reduced, and low in cost.
Description
Technical field
The present invention relates to technical field of concrete additives, especially a kind of two-component corrosion inhibitor for alkali-free quick-coagulant
And its preparation and application.
Background technique
Construction of shotcrete condition of molding is good, has the advantages that many common templates casting concretes are incomparable.Especially
It is the development of wet-mix shotcrete technology in recent years, greatly expands the engineering scope of application of gunite concrete, and injection is mixed
Coagulate lining and the protective layer of steel construction etc. of soil common-use words Tunnel, wall, diversion works or other structures.Alkali-free
Accelerator is the important composition material of gunite concrete, can significantly improve gunite concrete early strength to provide supporting in time
Drag；Just, the advantages that final setting time is short, 1d intensity is high, 98% or more 28d compressive strength rate conservation rate.
In the prior art, the main component of traditional accelerator is the inorganic salts such as aluminum oxide clinker, carbonate, sodium metasilicate, this
Although kind of an accelerator can substantially meet the requirement in engineering to setting time and early strength, this accelerator is in highly basic
Property, later strength loss is big, while accelerator alkalinity has by force very much strong corrosion harmful effect to the skin of construction personnel, and strong
The presence of alkali is easy to cause alkali unfavorable to concrete durability.
Therefore, the exploitation of alkali-free quick-coagulant is extremely urgent.However, in the prior art, being adopted in alkali-free quick-coagulant production process
With hydrofluoric acid dissolution aluminium hydroxide, the corrosion of the articles, equipment of the hydrogen ion Dui Gang ﹑ iron in accelerator is remained in after dissolution
Very big, the resting period is longer, and corrosion is bigger, in response to the above problems, undesirable to handle using the methods of adjustment pH value.
It would therefore be highly desirable to develop a kind of corrosion inhibitor for alkali-free quick-coagulant.
Summary of the invention
The first purpose of this invention is to provide for a kind of two-component corrosion inhibitor for alkali-free quick-coagulant；Second purpose
It is to provide for a kind of preparation method of corrosion inhibitor for alkali-free quick-coagulant, third purpose is to provide a kind of for alkali-free rapid hardening
The application method of the corrosion inhibitor of agent.
In order to achieve the above objectives, the present invention is implemented according to following technical scheme:
The present invention provides a kind of corrosion inhibitor for alkali-free quick-coagulant, is made of the raw material of following mass percent: soap powder 1-
10%, water 90-99% are component A, and stannous chloride 0.08-0.2% is B component.
Further, the present invention also provides a kind of preparation method of corrosion inhibitor for alkali-free quick-coagulant, water 90-99% is added
Enter stirring container, is slowly added to 1-10% soap powder, 10 DEG C of -30 DEG C of normal-temperature dissolutions of water temperature, stirring 20 minutes are to obtain to all dissolving
For the corrosion inhibitor of alkali-free quick-coagulant, spare A Zu Fen ﹑ stannous chloride pack is B component.
The present invention also provides application methods in a kind of corrosion inhibitor for alkali-free quick-coagulant, are used for alkali-free quick-coagulant for described
Two-component corrosion inhibitor be added alkali-free quick-coagulant in be uniformly mixed, the corrosion inhibitor for alkali-free quick-coagulant accounts for the 1- of gross mass
2%。
Compared with prior art, meeting after the corrosion inhibitor produced by the present invention for alkali-free quick-coagulant is used in alkali-free quick-coagulant
The cathodic region for being adsorbed on steel product of selectivity forms protective film, and is passivated in Surface Creation of the anode region to steel product
Film can substantially reduce alkali-free quick-coagulant to equipment, packing material, storage equipment to slow down the cathodic process of electrochemical reaction
Corrosion, and cost is cheap, and raw material is easy to get, and it is convenient to promote, and can be mass produced and easy to use.
Specific embodiment
The embodiments given below are intended to further illustrate the invention, but is not to be construed as to the scope of the present invention
Limitation, some nonessential improvement and tune that person skilled in art makes the present invention according to the content of foregoing invention
It is whole, still fall within protection scope of the present invention.
Apply example 1
The present embodiment is used for the two-component corrosion inhibitor of alkali-free quick-coagulant, is made of the raw material of following mass percent: soap powder 2g, water
98g；Stirring container is added in water 98g by preparation method, is slowly added to 2g soap powder, and 10 DEG C of water temperature dissolutions stir 20 minutes to whole
Dissolution obtains the corrosion inhibitor component A for alkali-free quick-coagulant, and the pack of B component stannous chloride is spare.
Alkali-free quick-coagulant is added in the two-component corrosion inhibitor for being used for alkali-free quick-coagulant, the alkali-free quick-coagulant is by water
1.8g, the hydrofluoric acid 32g that mass fraction is 20%, aluminium hydroxide 7g, triethanolamine 1.1g, diethanol amine 1.1g, aluminum sulfate or poly-
It closes aluminum sulfate 29g, sodium sulphate 21g, the sodium hydroxide solution 7g that mass fraction is 30% to form, takes 98.9g alkali-free quick-coagulant, add
Enter component A 1g ﹑ B component 0.1g, the alkali-free quick-coagulant of corrosion inhibitor is added in the present embodiment.Then alkali-free quick-coagulant incorporation mortar is mixed
In solidifying soil, through actual test, every 98.9g alkali-free quick-coagulant adds 1.1g corrosion inhibitor, and every square metre of side of etching extent is reduced to for 24 hours
0.02g, reduced rate 99.34%, and it is not damaged to concrete, first, final setting time is not influenced, and intensity is concrete for 24 hours
11.9MPa, 28d compressive strength rate are 103.1%.
Embodiment 2
The present embodiment is used for the corrosion inhibitor of alkali-free quick-coagulant, is made of the raw material of following mass percent: component A soap powder 4.9g,
Water 95g；Water 95g is added stirring container, is slowly added to 4.9g soap powder, stannous chloride 0.1g, 30 DEG C of water temperature molten by preparation method
Solution obtains the corrosion inhibitor component A for alkali-free quick-coagulant to all dissolutions in stirring 20 minutes, and the pack of B component stannous chloride is standby
With.
Alkali-free quick-coagulant is added in the corrosion inhibitor for being used for alkali-free quick-coagulant, the alkali-free quick-coagulant is by mass fraction
20% hydrofluoric acid 33g, aluminium hydroxide 8g, triethanolamine 1g, aluminum sulfate or polyaluminium sulfate 37g, sodium sulphate 15g, mass fraction
Sodium hydroxide solution 6g, composition for 40%, take 98g alkali-free quick-coagulant,
Component A 1.8g ﹑ B component 0.2g is added, the alkali-free quick-coagulant of corrosion inhibitor is added in the present embodiment.Then alkali-free quick-coagulant is mixed
Enter in mortar concrete, through actual test, every 98g alkali-free quick-coagulant adds two-component 2g corrosion inhibitor, and every square metre of etching extent drops for 24 hours
Down to 0.018g, reduced rate 99.45%, and not damaged to concrete, do not influence just, final setting time, concrete intensity for 24 hours
For 10.3MPa, 28d compressive strength rate is 101.6%.
Embodiment 3
The present embodiment is used for the corrosion inhibitor of alkali-free quick-coagulant, is made of the raw material of following mass percent: component A soap powder 3g, water
97g；Water 97g is added stirring container, is slowly added to 3g soap powder by preparation method, 15 DEG C of water temperature dissolutions, and stirring 20 minutes is to complete
Portion's dissolution obtains the corrosion inhibitor component A for alkali-free quick-coagulant, and the pack of B component stannous chloride is spare.
Alkali-free quick-coagulant is added in the corrosion inhibitor for being used for alkali-free quick-coagulant, the alkali-free quick-coagulant is by mass fraction
20% hydrofluoric acid 30g, aluminium hydroxide 5g, triethanolamine 0.2g, aluminum sulfate or polyaluminium sulfate 25g, sodium sulphate 25g, matter
The sodium hydroxide solution 8g, composition that score is 30% are measured, 98.2g alkali-free quick-coagulant is taken, component A 1g ﹑ B component 0.2g is added,
The alkali-free quick-coagulant of the present embodiment addition corrosion inhibitor.Then alkali-free quick-coagulant is mixed in mortar concrete, through actual test, not
In addition etching extent is 2.6g for 24 hours for every square metre of side before, and every 98.8g alkali-free quick-coagulant adds two-component 1.2g corrosion inhibitor, and etching extent is every
Square metre side is reduced to 0.018g for 24 hours, reduced rate 99.31%, and not damaged to concrete, do not influence just, final set when
Between, intensity is 11.7MPa to concrete for 24 hours, and 28d compressive strength rate is 101.3 %.
Embodiment 4
The present embodiment is used for the corrosion inhibitor of alkali-free quick-coagulant, is made of the raw material of following mass percent: component A soap powder 4g, water
96g；Water 96g is added stirring container, is slowly added to 4g soap powder by preparation method,
18 DEG C of water temperature dissolutions, stirring 20 minutes are to obtain the corrosion inhibitor component A for alkali-free quick-coagulant to all dissolving,
The pack of B component stannous chloride is spare.
Alkali-free quick-coagulant is added in the corrosion inhibitor for being used for alkali-free quick-coagulant, the alkali-free quick-coagulant is by mass fraction
20% hydrofluoric acid 35g, aluminium hydroxide 8g, triethanolamine 0.4g, aluminum sulfate or polyaluminium sulfate 28g, sodium sulphate 19g, quality point
Sodium hydroxide solution 7.2g, composition of the number for 30%, take 98.6g alkali-free quick-coagulant, component A 1g ﹑ B component 0.14g, this reality are added
Apply the alkali-free quick-coagulant that corrosion inhibitor is added in example.Then alkali-free quick-coagulant is mixed in mortar concrete, through actual test, not in addition
Etching extent is 2.8g for 24 hours for preceding every square metre of side, and every 98.86g alkali-free quick-coagulant adds two-component 1.14g corrosion inhibitor, and etching extent is often put down
Fang meter Fang is reduced to 0.016g for 24 hours, reduced rate 99.43%, and not damaged to concrete, do not influence just, final setting time, mix
Intensity is 10.8MPa to solidifying soil for 24 hours, and 28d compressive strength rate is 102.7 %.
Embodiment 5
The present embodiment is used for the corrosion inhibitor of alkali-free quick-coagulant, is made of the raw material of following mass percent: component A soap powder 4g, water
96g；Stirring container is added in water 96g by preparation method, is slowly added to 4g soap powder, and 18 DEG C of water temperature dissolutions stir 20 minutes to whole
Dissolution obtains the corrosion inhibitor component A for alkali-free quick-coagulant, and the pack of B component stannous chloride is spare.
Alkali-free quick-coagulant is added in the corrosion inhibitor for being used for alkali-free quick-coagulant, the alkali-free quick-coagulant is by mass fraction
20% hydrofluoric acid 34g, aluminium hydroxide 8g, triethanolamine 0.4g, aluminum sulfate or polyaluminium sulfate 28g, sodium sulphate 19g, quality point
Sodium hydroxide solution 7.2g, composition of the number for 30%, take 98.6g alkali-free
Accelerator, is added component A 1g ﹑ B component 0.14g, and the alkali-free quick-coagulant of corrosion inhibitor is added in the present embodiment.Then by alkali-free speed
In solidifying agent incorporation mortar concrete, through actual test, not in addition before etching extent is 2.75g for 24 hours for every square metre of side, every 98.84g without
Alkali accelerator adds two-component 1.15g corrosion inhibitor, and every square metre of side of etching extent is reduced to 0.011g for 24 hours, reduced rate 99.6%, and
And it is not damaged to concrete, first, final setting time is not influenced, and intensity is 10.1MPa to concrete for 24 hours, and 28d compressive strength rate is
101.2%。
Embodiment 6
The present embodiment is used for the corrosion inhibitor of alkali-free quick-coagulant, is made of the raw material of following mass percent: component A soap powder 5g, water
95g；Stirring container is added in water 95g by preparation method, is slowly added to 5g soap powder, and 20 DEG C of water temperature dissolutions stir 20 minutes to whole
Dissolution obtains the corrosion inhibitor component A for alkali-free quick-coagulant, and the pack of B component stannous chloride is spare.
Alkali-free quick-coagulant is added in the corrosion inhibitor for being used for alkali-free quick-coagulant, the alkali-free quick-coagulant is by mass fraction
20% hydrofluoric acid 40g, aluminium hydroxide 11g, triethanolamine 1.5g, aluminum sulfate or polyaluminium sulfate 19.5g, sodium sulphate 19g,
Sodium hydroxide solution 7g, composition of the mass fraction for 30%, take 98.4g alkali-free quick-coagulant, component A 1g ﹑ B component 0.16g are added,
The alkali-free quick-coagulant of the present embodiment addition corrosion inhibitor.Then alkali-free quick-coagulant is mixed in mortar concrete, through actual test, not
In addition etching extent is 3.1g for 24 hours for every square metre of side before, and every 98.86g alkali-free quick-coagulant adds two-component 1.16g corrosion inhibitor, etching extent
It is 99.49% that every square metre of side is reduced to 0.016g reduced rate for 24 hours, and not damaged to concrete, at the beginning of not influencing, when final set
Between, intensity is 9.8MPa to concrete for 24 hours, and 28d compressive strength rate is 103.4%.
Embodiment 7
The present embodiment is used for the corrosion inhibitor of alkali-free quick-coagulant, is made of the raw material of following mass percent: component A soap powder 6g, water
94g ；Water 94 is added stirring container, is slowly added to 6g soap powder by preparation method,
20 DEG C of water temperature dissolutions, stirring 20 minutes are to obtain the corrosion inhibitor component A for alkali-free quick-coagulant, B component to all dissolving
Stannous chloride pack is spare.
Alkali-free quick-coagulant is added in the corrosion inhibitor for being used for alkali-free quick-coagulant, the alkali-free quick-coagulant is by mass fraction
20% hydrofluoric acid 44g, aluminium hydroxide 14g, triethanolamine 1g, aluminum sulfate or polyaluminium sulfate
16g, sodium sulphate 16g, the sodium hydroxide solution 8.5g that mass fraction is 40%, composition, take 98g alkali-free fast
Solidifying agent, is added component A 1.8g ﹑ B component 0.2g, and the alkali-free quick-coagulant of corrosion inhibitor is added in the present embodiment.Then by alkali-free speed
In solidifying agent incorporation mortar concrete, through actual test, etching extent is not 3.2g for 24 hours for preceding every square metre of side in addition, every 98g alkali-free speed
Solidifying agent adds two-component 2g corrosion inhibitor, and it is 99.63% that every square metre of side of etching extent is reduced to 0.012g reduced rate for 24 hours, and to coagulation
Soil is not damaged, does not influence first, final setting time, intensity is 9.4MPa, 28d compressive strength rate 103.6% to concrete for 24 hours.
Embodiment 8
The present embodiment is used for the corrosion inhibitor of alkali-free quick-coagulant, is made of the raw material of following mass percent: component A soap powder 8g, water
92g；Stirring container is added in water 92g by preparation method, is slowly added to 8g soap powder, and 20 DEG C of water temperature dissolutions stir 20 minutes to whole
Dissolution obtains the corrosion inhibitor component A for alkali-free quick-coagulant, and the pack of B component stannous chloride is spare.
Alkali-free quick-coagulant is added in the corrosion inhibitor for being used for alkali-free quick-coagulant, the alkali-free quick-coagulant is by mass fraction
20% hydrofluoric acid 45g, aluminium hydroxide 15g, triethanolamine 1.5g, aluminum sulfate or polyaluminium sulfate 14g, sodium sulphate 18g mass
Sodium hydroxide solution 6g, composition of the score for 40%, take 98g alkali-free quick-coagulant, component A 1.8g ﹑ B component 0.2g, this implementation are added
The alkali-free quick-coagulant of corrosion inhibitor is added in example.Then by alkali-free quick-coagulant mix mortar concrete in, through actual test, not in addition before
Etching extent is 3.3g for 24 hours for every square metre of side, and every 98g alkali-free quick-coagulant adds two-component 2g corrosion inhibitor, and every square metre of etching extent drops for 24 hours
Down to 0.063g, reduced rate 98.1%, and not damaged to concrete, do not influence just, final setting time, intensity is concrete for 24 hours
9.6MPa, 28d compressive strength rate are 102.1%.
Embodiment 9
The corrosion inhibitor for alkali-free quick-coagulant of the present embodiment, is made of: A the raw material of following mass percent
Component soap powder 9g, water 91g；Water 96g is added stirring container, is slowly added to 9g soap powder by preparation method,
30 DEG C of water temperature dissolutions, stirring 20 minutes are to obtain the corrosion inhibitor component A for alkali-free quick-coagulant to all dissolving,
The pack of B component stannous chloride is spare.
Alkali-free quick-coagulant is added in the corrosion inhibitor for being used for alkali-free quick-coagulant, the alkali-free quick-coagulant is by mass fraction
20% hydrofluoric acid 45g, aluminium hydroxide 14g, triethanolamine 1g, aluminum sulfate or polyaluminium sulfate 13g, sodium sulphate 20.5g, quality
The sodium hydroxide solution 6g that score is 40% is formed, and takes 98g alkali-free quick-coagulant, and component A 0.9g ﹑ B component 0.2g, this implementation is added
The alkali-free quick-coagulant of corrosion inhibitor is added in example.Then by alkali-free quick-coagulant mix mortar concrete in, through actual test, not in addition before
Etching extent is 3.3g for 24 hours for every square metre of side, and every 98.9g alkali-free quick-coagulant adds two-component 1.1g corrosion inhibitor, every square metre of etching extent
It is 99.4% that side is reduced to 0.02g reduced rate for 24 hours, and not damaged to concrete, does not influence first, final setting time, concrete is for 24 hours
Intensity is 9.42 MPa, and 28d compressive strength rate is 102.8%.
The present embodiment test data after field sampling mixes alkali-free quick-coagulant corrosion inhibitor is as follows:
Subordinate list:
Limitation that technical solution of the present invention is not limited to the above specific embodiments, it is all to make according to the technique and scheme of the present invention
Technology deformation is still fallen within protection scope of the present invention.
In above-described embodiment: used each raw material is commercial product.
In above-described embodiment: it is not specifically specified in used percentage, be quality (weight) percentage or
Well known to a person skilled in the art percentages；Described quality (weight) part can be gram or kilogram.
In above-described embodiment: in the ranges such as technological parameter (temperature, time etc.) and dosage of each component numerical value in each step,
Any point is applicable.
The technology contents being not specifically delineated in the content of present invention and above-described embodiment are compared with technology.
The present invention is not limited to the above embodiments, can be implemented described in the content of present invention and has the good result.
Claims (3)
1. a kind of two-component corrosion inhibitor for alkali-free quick-coagulant, is made of the raw material of following mass percent: component A:, soap powder
1-10%, water 90-99%, B component, stannous chloride 0.08-0.2%.
2. a kind of preparation method for the two-component corrosion inhibitor of alkali-free quick-coagulant as described in claim 1, it is characterised in that:
Stirring container is added in water 90-99%, is slowly added to soap powder 1-10%, 10 DEG C of -30 DEG C of normal-temperature dissolutions of water temperature, stirring 20 minutes is to complete
Portion's dissolution obtains the two-component corrosion inhibitor for alkali-free quick-coagulant, and A group part ﹑ B component is that the packing of stannous chloride dry powder is spare, system
The two-component corrosion inhibitor obtained.
3. a kind of application method for the corrosion inhibitor of alkali-free quick-coagulant as described in claim 1, it is characterised in that: will be described
Corrosion inhibitor A ﹑ B component for alkali-free quick-coagulant is proportionally added into alkali-free quick-coagulant and is uniformly mixed, described to be used for alkali-free rapid hardening
The corrosion inhibitor of agent accounts for the 1-2% of gross mass.
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| CN201910120562.2A CN109776014B (en) | 2019-02-18 | 2019-02-18 | Double-component rust inhibitor for alkali-free accelerator and preparation and use methods thereof |
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| CN201910120562.2A CN109776014B (en) | 2019-02-18 | 2019-02-18 | Double-component rust inhibitor for alkali-free accelerator and preparation and use methods thereof |
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| CN109776014B CN109776014B (en) | 2022-03-18 |
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