CN109608096A - A kind of frost thawing resistance concrete interfacial agents - Google Patents
A kind of frost thawing resistance concrete interfacial agents Download PDFInfo
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- CN109608096A CN109608096A CN201910115640.XA CN201910115640A CN109608096A CN 109608096 A CN109608096 A CN 109608096A CN 201910115640 A CN201910115640 A CN 201910115640A CN 109608096 A CN109608096 A CN 109608096A
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- interfacial agents
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- resistance concrete
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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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a kind of frost thawing resistance concrete interfacial agents, are prepared by the raw material of following parts by weight: 30~40 parts of acrylic ester aquosity Laminating adhesive, 10~20 parts of bamboo liquefied phenolic resin, 10~20 parts of organic-silicon-modified silicate, 15~20 parts of graft modified silicon dioxide, 25.5~32.5 parts of fine aggregate, 3~6 parts of diethylenetriamine pentacarboxylic acid sodium, 10~15 parts of paraffin, 5~10 parts of the tetradecane, 5~7 parts of polyalcohol, 3~10 parts of water, 1~2 part of sodium lignin sulfonate, 0.2~0.6 part of defoaming agent, 0.2~3 part of anti-settling agent, 0.5~1 part of dispersing agent.The present invention can greatly enhance the freeze-thaw resistance of concrete interface agent by the performance synergistic effect between paraffin, the tetradecane, acrylic ester aquosity Laminating adhesive and bamboo liquefied phenolic resin.
Description
Technical field
The present invention relates to the field of building materials, especially a kind of frost thawing resistance concrete interfacial agents.
Background technique
Concrete interface agent is also known as interface bonding agent, interfacial agents.Interfacial agents used in China's engineering mainly have water at present
Cement paste, expanding cement net slurry, epoxy glue, polymer-modified cement mortar etc..
To there is adhesion strength in concrete interface agent in practical engineering applications low mostly, corrosion resistance, water resistance, resistance to
Long property and low temperature flexibility are poor, easily come unglued, crack under wet environment, falling off, hollowing the problems such as, especially in -5 DEG C or less easy jellies
Knot generates demulsifying phenomenon, and freeze-thaw resistance is poor, and therefore, the application under freezing-thawing has obtained very big limitation, especially cold
Cryogenic region or freezing storehouse etc..
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of frost thawing resistance concrete interfacial agents.
In order to solve the above technical problems, the technical solution used in the present invention is as follows.
A kind of frost thawing resistance concrete interfacial agents, which is characterized in that be prepared by the raw material of following parts by weight:
30~40 parts of acrylic ester aquosity Laminating adhesive, 10~20 parts of bamboo liquefied phenolic resin, organic-silicon-modified silicate
10~20 parts, 15~20 parts of graft modified silicon dioxide, 25.5~32.5 parts of fine aggregate, diethylenetriamine pentacarboxylic acid sodium 3~6
Part, 10~15 parts of paraffin, 5~10 parts of the tetradecane, 5~7 parts of polyalcohol, 3~10 parts of water, 1~2 part of sodium lignin sulfonate, defoaming
0.2~0.6 part of agent, 0.2~3 part of anti-settling agent, 0.5~1 part of dispersing agent.
Further, the organic-silicon-modified silicate is as obtained by following steps preparation:
It disperses appropriate silicate powder in the water of 4~5 times of amounts, the hydrochloric acid solution that mass fraction is 3% is added, by it
PH value is adjusted to 5, after heating makes system temperature rise to 50 DEG C, and 15~30% second that quality is silicate powder quality is added dropwise
Alkenyl three ('beta '-methoxy ethyoxyl) silane, and with the speed of 150~200rmp stirring, stationary temperature react 2 hours, after be cooled to
The anionic surfactant of silicate powder 1%~3% is added in room temperature, and 100~150rmp stirs 30min at room temperature, i.e.,
?.
Further, the graft modified silicon dioxide is the silica modified with styrene-grafted.
Further, the anti-settling agent is selected from one of amide modifications rilanit special, polyamide wax.
Further, the dispersing agent is one of SK-5040 dispersing agent, TH-904 aqueous dispersion.
Further, the defoaming agent is one of DF849 defoaming agent, KMT-2033 defoaming agent, XHD103 defoaming agent.
Preferably, it is prepared by the raw material of following parts by weight:
30 parts of acrylic ester aquosity Laminating adhesive, 10 parts of bamboo liquefied phenolic resin, 10 parts of organic-silicon-modified silicate, grafting
15 parts of improved silica, 25.5 parts of fine aggregate, 3 parts of diethylenetriamine pentacarboxylic acid sodium, 10 parts of paraffin, 5 parts of the tetradecane, polyalcohol
5 parts, 3 parts of water, 1 part of sodium lignin sulfonate, 0.2 part of defoaming agent, 0.2 part of anti-settling agent, 0.5 part of dispersing agent.
Preferably, it is prepared by the raw material of following parts by weight:
40 parts of acrylic ester aquosity Laminating adhesive, 20 parts of bamboo liquefied phenolic resin, 20 parts of organic-silicon-modified silicate, grafting
It is 20 parts of improved silica, 32.5 parts of fine aggregate, 6 parts of diethylenetriamine pentacarboxylic acid sodium, 15 parts of paraffin, 10 parts of the tetradecane, polynary
7 parts of alcohol, 10 parts of water, 2 parts of sodium lignin sulfonate, 0.6 part of defoaming agent, 3 parts of anti-settling agent, 1 part of dispersing agent.
Preferably, it is prepared by the raw material of following parts by weight:
35 parts of acrylic ester aquosity Laminating adhesive, 15 parts of bamboo liquefied phenolic resin, 15 parts of organic-silicon-modified silicate, grafting
17.5 parts of improved silica, 29 parts of fine aggregate, 4.5 parts of diethylenetriamine pentacarboxylic acid sodium, 12.5 parts of paraffin, 7.5 parts of the tetradecane,
6 parts of polyalcohol, 6.5 parts of water, 1.5 parts of sodium lignin sulfonate, 0.4 part of defoaming agent, 1.6 parts of anti-settling agent, 0.75 part of dispersing agent.
The invention has the following advantages:
By the organic-silicon-modified processing to silicate, its weatherability and wear-resisting property are substantially increased, in conjunction with acrylic acid
The addition of ester aqueous laminating adhesive and bamboo liquefied phenolic resin, can form Silica hydrogel druse layer, adhesion strength with higher,
When temperature is reduced close to the transformation temperature of phase-change material, phase-change material can discharge a large amount of heat, prevent or prolong using this heat
Slow interfacial agents freeze, to improve its freeze-thaw resistance；Sodium lignin sulfonate has both diminishing, slow setting, bleed triple function, Ke Yiqi
The effect of performance is wrapped up to interfacial agents are improved, while the anti-thawing ability and durability of interfacial agents can be improved；Diethylenetriamine
After pentacarboxylic acid sodium, polyalcohol meet water, a large amount of carboxyl and hydroxyl will form, since these polar groups of intermolecular force adsorb
To fine aggregate and organic-silicon-modified silicate granules surface, the Si-O-Si key that non-active material surface is smooth, fine and close can be destroyed
With Si-O-Al key and its network structure, crystal structure is made to generate defect, accelerates its dissociation and aquation, so as to greatest extent
Improve the intensity of concrete interface agent.
Specific embodiment
In order to which objects and advantages of the present invention are more clearly understood, the present invention is carried out with reference to embodiments further
It is described in detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit this hair
It is bright.
In following embodiment, the organic-silicon-modified silicate is as obtained by following steps preparation:
It disperses appropriate silicate powder in the water of 4~5 times of amounts, the hydrochloric acid solution that mass fraction is 3% is added, by it
PH value is adjusted to 5, after heating makes system temperature rise to 50 DEG C, and 15~30% second that quality is silicate powder quality is added dropwise
Alkenyl three ('beta '-methoxy ethyoxyl) silane, and with the speed of 150~200rmp stirring, stationary temperature react 2 hours, after be cooled to
The anionic surfactant of silicate powder 1%~3% is added in room temperature, and 100~150rmp stirs 30min at room temperature, i.e.,
?.
The graft modified silicon dioxide is the silica modified with styrene-grafted；The anti-settling agent changes selected from amide
One of property rilanit special, polyamide wax；The dispersing agent is SK-5040 dispersing agent, in TH-904 aqueous dispersion
It is a kind of；The defoaming agent is one of DF849 defoaming agent, KMT-2033 defoaming agent, XHD103 defoaming agent；The fine aggregate is
Quartz sand；The acrylic ester aquosity Laminating adhesive is ethylene-acrylic acid lotion (EAA lotion) and acrylic acid ester emulsion is in mass ratio
After the compound emulsion 93~95% that 40~50%:50~60% is made into, with 5~7% mixture of crosslinking agent polyimide mass ratio
Gained；Remaining raw material is commercially available.
Embodiment 1
A kind of frost thawing resistance concrete interfacial agents, are prepared by the raw material of following parts by weight:
30 parts of acrylic ester aquosity Laminating adhesive, 10 parts of bamboo liquefied phenolic resin, 10 parts of organic-silicon-modified silicate, grafting
15 parts of improved silica, 25.5 parts of fine aggregate, 3 parts of diethylenetriamine pentacarboxylic acid sodium, 10 parts of paraffin, 5 parts of the tetradecane, polyalcohol
5 parts, 3 parts of water, 1 part of sodium lignin sulfonate, 0.2 part of defoaming agent, 0.2 part of anti-settling agent, 0.5 part of dispersing agent.
Embodiment 2
A kind of frost thawing resistance concrete interfacial agents, are prepared by the raw material of following parts by weight:
40 parts of acrylic ester aquosity Laminating adhesive, 20 parts of bamboo liquefied phenolic resin, 20 parts of organic-silicon-modified silicate, grafting
It is 20 parts of improved silica, 32.5 parts of fine aggregate, 6 parts of diethylenetriamine pentacarboxylic acid sodium, 15 parts of paraffin, 10 parts of the tetradecane, polynary
7 parts of alcohol, 10 parts of water, 2 parts of sodium lignin sulfonate, 0.6 part of defoaming agent, 3 parts of anti-settling agent, 1 part of dispersing agent.
Embodiment 3
A kind of frost thawing resistance concrete interfacial agents, are prepared by the raw material of following parts by weight:
35 parts of acrylic ester aquosity Laminating adhesive, 15 parts of bamboo liquefied phenolic resin, 15 parts of organic-silicon-modified silicate, grafting
17.5 parts of improved silica, 29 parts of fine aggregate, 4.5 parts of diethylenetriamine pentacarboxylic acid sodium, 12.5 parts of paraffin, 7.5 parts of the tetradecane,
6 parts of polyalcohol, 6.5 parts of water, 1.5 parts of sodium lignin sulfonate, 0.4 part of defoaming agent, 1.6 parts of anti-settling agent, 0.75 part of dispersing agent.
Performance detection:
Referring to JC/T 907-2002 " concrete interface agent " standard method production standard specimen and conserve to 7d, detection warp
Frozen-thawed cycled treated tensile bond strength, test method are as follows:
Frozen-thawed cycled processing: after test specimen standard curing 7d, 1d in 23 ± 2 DEG C of water is immersed, test specimen is taken out, carried out 25 times
Frozen-thawed cycled.Each Frozen-thawed cycled step are as follows: take out test specimen from water, it is water stain to dry with a cloth surface, keeps at -20 ± 3 DEG C
2h±20min.Test specimen is placed on 4h under standard test conditions after last time circulation, is connect with suitable high strength bond drawing
Head detects tensile bond strength afterwards for 24 hours.
Through detecting, 3 kinds of obtained concrete interface agent freeze-thaw resistances are good in the embodiment of the present invention 1~3, adhesion strength
Height does not freeze at -20 DEG C, and 7d shear bonding strength is 2.81~3.12Mpa or so, and tensile bond strength is 2.48~
2.52Mpa or so (in the case of test specimen does not process).Frozen-thawed cycled treated test specimen tensile bond strength 2.24~
2.31MPa left and right.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of the present invention, it can also make several improvements and retouch, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of frost thawing resistance concrete interfacial agents, which is characterized in that be prepared by the raw material of following parts by weight:
30~40 parts of acrylic ester aquosity Laminating adhesive, 10~20 parts of bamboo liquefied phenolic resin, organic-silicon-modified silicate 10~
20 parts, 15~20 parts of graft modified silicon dioxide, 25.5~32.5 parts of fine aggregate, 3~6 parts of diethylenetriamine pentacarboxylic acid sodium, stone
10~15 parts of wax, 5~10 parts of the tetradecane, 5~7 parts of polyalcohol, 3~10 parts of water, 1~2 part of sodium lignin sulfonate, defoaming agent 0.2
~0.6 part, 0.2~3 part of anti-settling agent, 0.5~1 part of dispersing agent.
2. a kind of frost thawing resistance concrete interfacial agents as described in claim 1, which is characterized in that the organic-silicon-modified silicate
As obtained by following steps preparation:
It disperses appropriate silicate powder in the water of 4~5 times of amounts, the hydrochloric acid solution that mass fraction is 3% is added, by its pH value
5, after heating makes system temperature rise to 50 DEG C are adjusted to, 15~30% vinyl that quality is silicate powder quality is added dropwise
Three ('beta '-methoxy ethyoxyl) silane, and with the speed of 150~200rmp stirring, stationary temperature react 2 hours, after be cooled to room
The anionic surfactant of silicate powder 1%~3% is added in temperature, and 100~150rmp stirs 30min at room temperature, i.e.,
?.
3. a kind of frost thawing resistance concrete interfacial agents as described in claim 1, which is characterized in that the graft modified silicon dioxide
For the silica modified with styrene-grafted.
4. a kind of frost thawing resistance concrete interfacial agents as described in claim 1, which is characterized in that the anti-settling agent changes selected from amide
One of property rilanit special, polyamide wax.
5. a kind of frost thawing resistance concrete interfacial agents as described in claim 1, which is characterized in that the dispersing agent is SK-5040
One of dispersing agent, TH-904 aqueous dispersion.
6. a kind of frost thawing resistance concrete interfacial agents as described in claim 1, which is characterized in that the defoaming agent disappears for DF849
One of infusion, KMT-2033 defoaming agent, XHD103 defoaming agent.
7. a kind of frost thawing resistance concrete interfacial agents as described in claim 1, which is characterized in that by the raw material system of following parts by weight
It is standby to form:
30 parts of acrylic ester aquosity Laminating adhesive, 10 parts of bamboo liquefied phenolic resin, 10 parts of organic-silicon-modified silicate, graft modification
5 parts of silica 1,25.5 parts of fine aggregate, 3 parts of diethylenetriamine pentacarboxylic acid sodium, 10 parts of paraffin, 5 parts of the tetradecane, 5 parts of polyalcohol,
3 parts of water, 1 part of sodium lignin sulfonate, 0.2 part of defoaming agent, 0.2 part of anti-settling agent, 0.5 part of dispersing agent.
8. a kind of frost thawing resistance concrete interfacial agents as described in claim 1, which is characterized in that by the raw material system of following parts by weight
It is standby to form:
40 parts of acrylic ester aquosity Laminating adhesive, 20 parts of bamboo liquefied phenolic resin, 20 parts of organic-silicon-modified silicate, graft modification
20 parts of silica, 32.5 parts of fine aggregate, 6 parts of diethylenetriamine pentacarboxylic acid sodium, 15 parts of paraffin, 10 parts of the tetradecane, polyalcohol 7
Part, 10 parts of water, 2 parts of sodium lignin sulfonate, 0.6 part of defoaming agent, 3 parts of anti-settling agent, 1 part of dispersing agent.
9. a kind of frost thawing resistance concrete interfacial agents as described in claim 1, which is characterized in that by the raw material system of following parts by weight
It is standby to form:
35 parts of acrylic ester aquosity Laminating adhesive, 15 parts of bamboo liquefied phenolic resin, 15 parts of organic-silicon-modified silicate, graft modification
It is 7.5 parts of silica 1,29 parts of fine aggregate, 4.5 parts of diethylenetriamine pentacarboxylic acid sodium, 12.5 parts of paraffin, 7.5 parts of the tetradecane, polynary
6 parts of alcohol, 6.5 parts of water, 1.5 parts of sodium lignin sulfonate, 0.4 part of defoaming agent, 1.6 parts of anti-settling agent, 0.75 part of dispersing agent.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110482969A (en) * | 2019-09-30 | 2019-11-22 | 西京学院 | A kind of permeable concrete and preparation method thereof |
| CN112159198A (en) * | 2020-09-18 | 2021-01-01 | 沪宝新材料科技（上海）股份有限公司 | Freeze-thaw resistant type air-permeable concrete interface agent |
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| CN112159198A (en) * | 2020-09-18 | 2021-01-01 | 沪宝新材料科技（上海）股份有限公司 | Freeze-thaw resistant type air-permeable concrete interface agent |
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