CN109503021B - Concrete antifreezing agent and preparation method thereof - Google Patents
Concrete antifreezing agent and preparation method thereof Download PDFInfo
- Publication number
- CN109503021B CN109503021B CN201811566761.8A CN201811566761A CN109503021B CN 109503021 B CN109503021 B CN 109503021B CN 201811566761 A CN201811566761 A CN 201811566761A CN 109503021 B CN109503021 B CN 109503021B
- Authority
- CN
- China
- Prior art keywords
- parts
- concrete
- hollow glass
- mixture
- glass beads
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000011521 glass Substances 0.000 claims abstract description 82
- 239000011324 bead Substances 0.000 claims abstract description 70
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000000839 emulsion Substances 0.000 claims abstract description 40
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000003756 stirring Methods 0.000 claims abstract description 37
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 33
- 238000002156 mixing Methods 0.000 claims abstract description 24
- 241001122767 Theaceae Species 0.000 claims abstract description 18
- 239000001397 quillaja saponaria molina bark Substances 0.000 claims abstract description 18
- 229930182490 saponin Natural products 0.000 claims abstract description 18
- 150000007949 saponins Chemical class 0.000 claims abstract description 18
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 17
- -1 alkyl glycoside Chemical class 0.000 claims abstract description 15
- 229930182470 glycoside Natural products 0.000 claims abstract description 15
- JMGZBMRVDHKMKB-UHFFFAOYSA-L disodium;2-sulfobutanedioate Chemical compound [Na+].[Na+].OS(=O)(=O)C(C([O-])=O)CC([O-])=O JMGZBMRVDHKMKB-UHFFFAOYSA-L 0.000 claims abstract description 13
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 7
- 229920003063 hydroxymethyl cellulose Polymers 0.000 claims abstract description 7
- 229940031574 hydroxymethyl cellulose Drugs 0.000 claims abstract description 7
- 239000011734 sodium Substances 0.000 claims abstract description 7
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims description 50
- 230000002528 anti-freeze Effects 0.000 claims description 16
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 6
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 6
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 6
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000004005 microsphere Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 229920005552 sodium lignosulfonate Polymers 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 7
- 230000000052 comparative effect Effects 0.000 description 33
- 238000007710 freezing Methods 0.000 description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- 230000001603 reducing effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 239000007798 antifreeze agent Substances 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 229910002651 NO3 Inorganic materials 0.000 description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 238000009435 building construction Methods 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 239000011325 microbead Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- CBOCVOKPQGJKKJ-UHFFFAOYSA-L Calcium formate Chemical compound [Ca+2].[O-]C=O.[O-]C=O CBOCVOKPQGJKKJ-UHFFFAOYSA-L 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 229940044172 calcium formate Drugs 0.000 description 1
- 235000019255 calcium formate Nutrition 0.000 description 1
- 239000004281 calcium formate Substances 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- 239000002085 irritant Substances 0.000 description 1
- 231100000021 irritant Toxicity 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 235000019615 sensations Nutrition 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000007785 strong electrolyte Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/601—Agents for increasing frost resistance
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to the technical field of concrete stirring processing, in particular to a concrete antifreezing agent, which comprises the following raw material components in parts by weight: 20-35 parts of acrylic emulsion, 2-7 parts of hollow glass beads, 0.4-1 part of tea saponin, 25-40 parts of sodium hydroxymethyl cellulose, 8-15 parts of alkyl glycoside, 0.1-0.3 part of sodium sulfosuccinate, 30-50 parts of water reducing agent and 180 parts of water, wherein the weight part ratio of the acrylic emulsion to the hollow glass beads is 5-10; the concrete mixing agent is applied to concrete mixing processing, can enable the concrete to have frost resistance and antifreezing performance, is environment-friendly, and does not influence the building quality and normal use; the invention also provides a preparation method of the antifreezing agent, and the concrete antifreezing agent with good antifreezing property is prepared.
Description
Technical Field
The invention relates to the technical field of concrete stirring processing, in particular to a concrete antifreezing agent and a preparation method thereof.
Background
In the building construction, a large amount of concrete is needed for foundation and pile foundation construction and building construction. In the concrete mixing process, the concrete mixing process is basically completed outdoors. When the concrete is stirred and processed in winter, because the difference between the temperature of the concrete and the outside air temperature is increased, heat exchange can be generated between the concrete and the ambient temperature, when the ambient temperature is very low, the temperature of the concrete can be quickly reduced by the heat exchange, for fresh concrete, the temperature reduction speed directly determines the hydration temperature, and the faster the temperature reduction is, the slower the concrete strength is increased. When the concrete is frozen too early, the strength of the concrete can not be increased any more, the higher the free moisture remained in the concrete is, the higher the frost heaving force after freezing is, and the more easily the concrete is damaged. The main reason for the decrease of concrete strength is that the volume of the frozen concrete increases and the frost heaving stress increases with the increase of the volume of the frozen concrete, so that cracks are generated, and the concrete structure is damaged. The first few hours of concrete placement is the most dangerous time.
In order to improve the antifreezing property of concrete, in the prior art, an antifreezing agent is added into the concrete to improve the cold freezing resistance and the antifreezing property of the concrete. At present, the antifreezing component of the concrete antifreezing agent mostly contains nitrite, nitrate, chloride, urea, ammonia water and the like. The invention patent with the publication number of CN 103496907B discloses an ultra-low temperature antifreezing concrete, which can realize the ultra-low temperature antifreezing effect by adding an antifreezing agent into the concrete, wherein the used antifreezing agent is formed by mixing nitrate, calcium formate and water; although the antifreeze of the patent can achieve the aim of low-temperature antifreezing, nitrate or nitrite has carcinogenic effect and is easy to cause concrete alkali-aggregate reaction, thereby causing bad phenomena such as alkali return and the like, and influencing the building quality and normal use. In addition, in the prior art, chloride in the antifreezing component of the concrete antifreezing agent corrodes the steel bars, so that the service life of the building is influenced; urea, ammonia, etc. release pungent odors, affecting environmental quality.
Disclosure of Invention
Aiming at the defects in the prior art, the first purpose of the invention is to provide a concrete antifreezing agent which is applied to concrete mixing processing, can enable concrete to have antifreezing and antifreezing performances, is environment-friendly, and does not influence building quality and normal use.
The first purpose of the invention is realized by the following technical scheme:
the concrete antifreezing agent comprises the following raw material components in parts by weight: 20-35 parts of acrylic emulsion, 2-7 parts of hollow glass beads, 0.4-1 part of tea saponin, 25-40 parts of sodium hydroxymethyl cellulose, 8-15 parts of alkyl glycoside, 0.1-0.3 part of sodium sulfosuccinate, 30-50 parts of water reducing agent and 180 parts of water, wherein the weight part ratio of the acrylic emulsion to the hollow glass beads is 5-10.
By adopting the technical scheme, the acrylic emulsion, the milky white (light blue) emulsion and the non-film-forming high-gloss resin have the solid content of 40 +/-1%, are non-toxic, non-irritant and harmless to human bodies, meet the requirement of environmental protection, have excellent gloss and transparency and good anti-adhesion performance, thereby reducing the adhesion of concrete aggregate and improving the dispersion performance of the aggregate. The hollow glass beads are tiny spheres, have large spherical rate and minimum specific surface area, can have good dispersibility in concrete aggregate, and are easy to compact and compact, so the hollow glass beads have high filling performance; the hollow glass micro-beads contain gas with better cold and heat shrinkage resistance, thereby enhancing the temperature resistance and the modification performance of concrete, reducing the cracking of the concrete caused by the influence of expansion caused by heat and contraction caused by cold, and improving the frost resistance of the concrete. Tea saponin, also known as tea saponin, is a glycoside compound extracted from tea seeds (tea seeds ), is a natural and environment-friendly nonionic surfactant with good performance, and because the tea saponin does not exist in an ionic state in a solution, the tea saponin has high stability, is not easily influenced by the existence of strong electrolyte, is not easily influenced by acid and alkali, has good solubility in various solvents, and does not strongly adsorb on the solid surface. The acrylic emulsion and the hollow glass beads are matched and the proportion of the acrylic emulsion and the hollow glass beads is controlled, so that the hollow glass beads are uniformly dispersed in the acrylic emulsion, the hollow glass beads surround a large amount of micro bubbles generated by stirring and processing the concrete with the tea saponin, the bubbles are extruded in net-shaped gaps among the hollow glass beads, when the use temperature of the concrete is lower than a preset value, water in the concrete is frozen and extruded into the bubbles, the influence on a concrete structure is greatly reduced, and the frost resistance of the concrete is further improved. The acrylic emulsion can improve the bonding performance among aggregates, so that the structure is more compact, the acrylic emulsion and the concrete slurry interpenetrate matrix, the aggregates are filled in a gap pore channel formed among the hollow glass beads, and the compactness of the interior of the concrete is improved. The Alkyl glycoside is Alkyl glycoside (APG for short) synthesized by glucose and fatty alcohol, and the APG serving as an air-entraining agent can meet the requirements of abundant, stable and uniform foam in concrete processing and stirring, so that the stability of the antifreezing agent is improved, and the quality stability of the antifreezing agent and the antifreezing concrete is ensured. The sodium sulfosuccinate is an environment-friendly anionic surfactant with excellent emulsifying, wetting, penetrating and other properties, and is widely used in the fields of daily chemical industry, slow material, printing and dyeing, mines, papermaking, leather, light sensation and the like.
Preferably, the feed comprises the following raw material components in parts by weight: 25-30 parts of acrylic emulsion, 4-6 parts of hollow glass beads, 0.5-0.8 part of tea saponin, 30-38 parts of sodium hydroxymethyl cellulose, 10-13 parts of alkyl glycoside, 0.1-0.3 part of sodium sulfosuccinate, 35-45 parts of water reducing agent and 160 parts of water 130-containing material, wherein the weight part ratio of the acrylic emulsion to the hollow glass beads is 5-7.
Preferably, the feed comprises the following raw material components in parts by weight: 28 parts of acrylic emulsion, 5 parts of hollow glass beads, 0.7 part of tea saponin, 35 parts of sodium hydroxymethyl cellulose, 12 parts of alkyl glycoside, 0.2 part of sodium sulfosuccinate, 42 parts of water reducing agent and 147 parts of water, wherein the weight part ratio of the acrylic emulsion to the hollow glass beads is 5.6.
By adopting the technical scheme, the content of each component is optimized, so that the antifreezing agent has a better antifreezing effect.
Preferably, the water reducing agent is sodium lignosulfonate.
By adopting the technical scheme, the sodium lignin sulfonate (sodium ligninsulfonate) is a natural high molecular polymer, is environment-friendly and pollution-free, is an anionic surfactant, has strong dispersing capacity, is suitable for dispersing solids in an aqueous medium, has different degrees of dispersibility due to different molecular weights and functional groups, and can be adsorbed on the surfaces of various solid particles. After sodium lignosulfonate is added into concrete, the hydrophobic groups of the water reducing agent are directionally adsorbed on the surfaces of concrete particles, and the hydrophilic groups are directed to an aqueous solution to form a monomolecular or polymolecular adsorption membrane, so that the concrete particles are mutually repelled due to the same charges on the surfaces and are dispersed, and redundant water is released from the particles to achieve the purpose of reducing water. Meanwhile, the surface tension of water and the interfacial tension among cement particles are reduced, so that the water consumption is correspondingly reduced under the condition of keeping the same fluidity, and the water reducing effect is also realized. The water reducing agent can greatly reduce the hydration of concrete, reduce the porosity and increase the compactness of the concrete, thereby greatly improving the strength and the impermeability of the concrete.
Preferably, the diameter of the hollow glass bead is 100-250 μm.
By adopting the technical scheme, the general granularity of the hollow glass beads is 10-250 microns, the wall thickness is 1-2 microns, the compressive strength of the hollow glass beads is enhanced along with the increase of the granularity, and after the hollow glass beads with larger granularity are applied to concrete, the strength of the concrete can be relatively enhanced, and the structural stability of the concrete is improved.
The second purpose of the invention is to provide a preparation method of the concrete antifreeze agent, and the concrete antifreeze agent with good antifreeze performance is prepared.
The second purpose of the invention is realized by the following technical scheme:
a preparation method of a concrete antifreezing agent comprises the following operation steps:
mixing sodium carboxymethylcellulose, a water reducing agent and 1/4 total amount of water, and uniformly stirring to obtain a mixture A;
mixing tea saponin, alkyl glycoside, sodium sulfosuccinate and 2/4 total amount of water, and stirring to obtain mixture B;
mixing acrylic emulsion with water in the total amount of 1/4, adding hollow glass beads for three times, and stirring and mixing at the speed of 30-50r/min for 2-3min after adding the hollow glass beads each time to obtain a mixture C;
and adding the mixture A and the mixture B into the mixture C, and stirring at the speed of 30-50r/min for 5-10min to obtain the concrete antifreezing agent.
By adopting the technical scheme, the hollow glass beads are added into the acrylic emulsion for three times and are gradually added, so that the hollow glass beads can be well prevented from floating and gathering to a certain position, the dispersion can be more complete, and the hollow glass beads surround the bubbles of the acrylic emulsion in a three-dimensional network structure formed by the acrylic emulsion; when the hollow glass beads are added, the structural integrity of the hollow glass beads is ensured under the condition of mild stirring speed, so that the hollow glass beads can play the roles of strength support and hole protection. And adding the mixture A and the mixture B into the mixture C, and uniformly dispersing and filling the aggregates into the gap pore canal formed between the hollow glass beads at a mild stirring speed to finally prepare the concrete antifreezing agent with antifreezing performance.
Preferably, in the preparation process of the mixture C, the hollow glass is added according to the following addition amounts: the total amount of the hollow glass microspheres of 2/4 was added for the first time, 1/4 was added for the second time, and 1/4 was added for the third time.
Through adopting above-mentioned technical scheme, the hollow glass microballon that adds for the first time is twice more after relatively, because when adding for the first time, the occupation space of treating in the misce bene is great relatively, add suitable and the hollow glass microballon that adds and can guarantee to disperse basically, the back is twice then along with the addition of hollow glass microballon, the occupation space of treating in the misce bene reduces relatively, consequently twice addition in the back is less than the addition volume for the first time, thereby can guarantee that the abundant even dispersion of hollow glass microballon is in acrylic acid emulsion, both cooperate, play the frost-proof effect of guard aperture.
Preferably, in the preparation process of the mixture A, the mixture A is obtained by continuously stirring at the speed of 300-500r/min for 5-10min at the temperature of 23-30 ℃.
Preferably, in the preparation process of the mixture B, the mixture B is obtained by continuously stirring at the speed of 300-500r/min for 25-40min at the temperature of 25-35 ℃.
By adopting the technical scheme, the mixing speed of the mixture A and the mixture B is higher, and the rapid and uniform dispersion of the auxiliary agents such as the surfactant, the water reducing agent and the like is facilitated.
In conclusion, the invention has the following beneficial effects:
(1) the hollow glass beads and the acrylic emulsion are added into the raw materials of the concrete antifreezing agent and are cooperated to play a role, so that the strength (compressive strength ratio of 7 days) of the concrete antifreezing agent during negative temperature maintenance for 7 days can reach 34 percent at most, and is 3.4 times of the specified index; the compressive strength ratio reaches 189% at the maximum in 7+28 days, and reaches 2.2 times of the specified index; the compressive strength ratio reaches 190 percent at most after 7 days and 56 days, and reaches 1.9 times of the specified index;
(2) the hollow glass microspheres are added in batches by controlling the stirring speed, so that the hollow glass microspheres can keep an integral structure, and the anti-freezing agent can play a role, and further has better anti-freezing performance;
(3) the concrete antifreezing agent disclosed by the invention has various standards better than specified indexes, and the ammonia release amount, the alkali content and the chloride ion content are far lower than the specified indexes, so that the concrete antifreezing agent is environment-friendly and has excellent performance.
Detailed Description
The present invention will be further described with reference to the following specific examples.
The acrylic emulsion is selected from Beijing Aderlan chemical technology Co., Ltd, model ADL-2108, and has a solid content of 55%. The hollow glass beads are selected from the specification size of 100-250 mu m in diameter. Tea saponin, CAS number: 8047-15-2, and density of 1.015-1.020 g/mL. Sodium carboxymethylcellulose selected from Shanghai Ji to Biochemical technology, Inc., with a product number of C83550-500 g. The invention selects the hollow glass micro-beads with the diameter of 100-250 mu m. The other raw material components are also commercial products and are not subjected to secondary processing.
Example 1
The concrete antifreezer is prepared by the following operation steps:
according to the component content in the table 1, the sodium carboxymethyl cellulose, the water reducing agent and 1/4 total amount of water are mixed, at 23 ℃,
continuously stirring for 5min at the speed of 500r/min, and uniformly stirring to obtain a mixture A;
mixing tea saponin, alkyl glycoside, sodium sulfosuccinate and 2/4 total amount of water according to the component content in Table 1, continuously stirring at 500r/min for 25min at 25 deg.C, and stirring to obtain mixture B;
mixing acrylic emulsion and 1/4 total amount of water according to the component content in the table 1, adding hollow glass beads in three times, adding 2/4 total amount of hollow glass beads for the first time, 1/4 total amount of hollow glass beads for the second time, adding 1/4 total amount of hollow glass beads for the third time, stirring and mixing at the speed of 30r/min for 3min after adding the hollow glass beads each time, and obtaining a mixture C;
and adding the mixture A and the mixture B into the mixture C, and stirring at the speed of 30r/min for 10min to obtain the concrete antifreezing agent.
Example 2
The concrete antifreezer is prepared by the following operation steps:
mixing sodium carboxymethylcellulose, a water reducing agent and 1/4 total amount of water according to the component content in the embodiment 1, continuously stirring for 8min at the speed of 400r/min at 26 ℃, and uniformly stirring to obtain a mixture A;
according to the component content in the embodiment 1, tea saponin, alkyl glycoside, sodium sulfosuccinate and 2/4 total amount of water are mixed, and are stirred for 34min at 28 ℃ and 420r/min, and after uniform stirring, a mixture B is obtained;
according to the component content in the example 1, after mixing the acrylic emulsion with 1/4 total amount of water, adding hollow glass beads in three times, adding 2/4 total amount of hollow glass beads for the first time, 1/4 total amount of hollow glass beads for the second time, adding 1/4 total amount of hollow glass beads for the third time, stirring and mixing for 4min at the speed of 40r/min after adding the hollow glass beads each time, and obtaining a mixture C;
and adding the mixture A and the mixture B into the mixture C, and stirring at the speed of 40r/min for 8min to obtain the concrete antifreezing agent.
Example 3
The concrete antifreezer is prepared by the following operation steps:
mixing sodium carboxymethylcellulose, a water reducing agent and 1/4 total amount of water according to the component content in the embodiment 1, continuously stirring at the speed of 300r/min for 10min at the temperature of 30 ℃, and uniformly stirring to obtain a mixture A;
according to the component content in the embodiment 1, tea saponin, alkyl glycoside, sodium sulfosuccinate and 2/4 total amount of water are mixed, and are stirred continuously for 40min at 35 ℃ and 300r/min, and after being stirred uniformly, a mixture B is obtained;
according to the component content in the example 1, after mixing the acrylic emulsion with 1/4 total amount of water, adding hollow glass beads in three times, adding 2/4 total amount of hollow glass beads for the first time, 1/4 total amount of hollow glass beads for the second time, adding 1/4 total amount of hollow glass beads for the third time, stirring and mixing at the speed of 50r/min for 3min after adding the hollow glass beads each time to obtain a mixture C;
and adding the mixture A and the mixture B into the mixture C, and stirring at the speed of 50r/min for 5min to obtain the concrete antifreezing agent.
Examples 4 to 10
The concrete antifreezes of examples 4 to 10 were prepared in exactly the same manner as in example 2, except that the addition amounts of the respective raw material components were different, and the specific addition amounts are shown in Table 1.
TABLE 1 addition amounts of respective raw material components for preparing concrete antifreezes in examples 1 to 10
Comparative example 1
Comparative example 1 differs from example 2 in that: the raw material of comparative example 1 was free of hollow glass beads, and the rest was identical to that of example 2.
Comparative example 2
Comparative example 2 differs from example 2 in that: the starting material in comparative example 2 was free of acrylic emulsion, and the remainder was identical to example 2.
Comparative example 3
Comparative example 3 differs from example 2 in that: the raw materials in comparative example 3 were free of acrylic emulsion and hollow glass beads, and the rest was the same as in example 2.
Comparative example 4
Comparative example 4 differs from example 2 in that: the weight part ratio of the acrylic emulsion to the hollow glass beads in the raw materials of the comparative example 4 was 4, and the rest was the same as that of the example 2.
Comparative example 5
Comparative example 5 differs from example 2 in that: the weight ratio of the acrylic emulsion to the hollow glass beads in the raw materials of the comparative example 5 was 12, and the rest was the same as that of the example 2.
Comparative example 6
Comparative example 6 differs from example 2 in that: in the preparation process of the mixture C in the comparative example 6, the hollow glass beads were added all at once and stirred at a speed of 40r/min for 4min to obtain a mixture C, and the rest was the same as in example 2.
Comparative example 7
Comparative example 7 differs from comparative example 6 in that: in the preparation process of the mixture C in the comparative example 7, after all the hollow glass beads are added at one time, the mixture C is obtained by stirring at the speed of 80r/min for 4min, and the rest is the same as that of the mixture C in the example 2.
The antifreeze obtained in example 1 in the patent application with the publication number of CN 103496907B issued to the control group.
The amounts of the respective raw material components of the concrete antifreezes of comparative examples 1 to 7 added are specifically shown in Table 2 below.
TABLE 2 addition amounts of respective raw material components for preparing concrete antifreeze in comparative examples 1 to 7
Performance detection
The performance of the antifreeze shown in examples 1 to 10, comparative examples 1 to 7 and a control group was measured according to the test standard and test method of JC475-2004, and the specific test results are shown in tables 3 and 4, respectively.
TABLE 3 results of performance testing of the concrete antifreezes prepared in examples 1 to 10
As can be seen from Table 3, the concrete antifreezer of the invention has various standards superior to the specified indexes, and has the advantages of far lower ammonia release amount, alkali content and chloride ion content than the specified indexes, environmental protection and excellent performance. The ratio of the compressive strength of the concrete subjected to negative temperature curing for 7 days to the compressive strength of the concrete subjected to standard curing for 28 days reaches 34% at most, which is 3.4 times of the specified index; the compressive strength ratio of 7+28 days (after being cured for 7 days at negative temperature and then being cured for 28 days) reaches 189 percent at most and reaches 2.2 times of the specified index; the compressive strength ratio reaches 190 percent at most after 7 days and 56 days, and reaches 1.9 times of the specified index; the antifreeze agent is proved to have excellent early strength and excellent frost resistance after being applied to concrete.
TABLE 4 results of performance test of concrete antifreezes in comparative examples 1 to 7 and control
The test results in Table 4 show that the concrete antifreezes prepared by the invention have various performances superior to those of the antifreezes in the patents of the control group. The formula and the preparation method of the invention have great influence on the antifreezing property of the antifreezing agent. As can be seen from comparative examples 1 to 5, the acrylic emulsion and the hollow glass beads in the invention have great influence on the freezing resistance and the compressive strength of the antifreeze of the invention, and if the hollow glass beads are removed (comparative example 1), the strength of the concrete after being cured for 7 days at negative temperature (the compressive strength ratio of 7 days) is reduced to 15 percent; the compressive strength ratio is reduced to 85% in 7+28 days; the compressive strength ratio is as low as 99% in 7+56 days, and all the performances are lower than the effect of the antifreeze agent of the control group; if the acrylic emulsion is removed (comparative example 2) or the acrylic emulsion and the hollow glass beads are removed (comparative example 3), the effects of the water reducing rate, the low-temperature condensation condition and the negative-temperature compressive strength ratio are all reduced, and are all lower than the control group and even lower than the specified index requirement. It can be known from comparative examples 4 and 5 that the proportion of the acrylic emulsion and the hollow glass beads in the invention has certain influence on the frost resistance of the finally obtained concrete, and if the proportion is not in the scope of the invention, the water reducing rate, the low-temperature condensation condition and the negative-temperature compressive strength ratio basically just meet the specified index requirements, even do not meet the requirements, and are all lower than the frost resistance of a control group. The results of the comparative example 6 and the comparative example 7 show that in the preparation method, the adding time and the stirring speed of the hollow glass beads play a key role in the action of the hollow glass beads, and if the hollow glass beads are added all at one time, the hollow glass beads are not uniformly dispersed, so that the anti-freezing performance of the final anti-freezing agent is influenced; if the stirring speed is too high after the addition, the structural integrity of the hollow glass beads can be damaged, and the support strength of the prepared antifreezing agent on concrete is reduced, so that the strength, the freezing resistance and other properties of the concrete are reduced.
The above-mentioned embodiments are merely illustrative and not restrictive, and those skilled in the art can modify the embodiments without inventive contribution as required after reading this specification, but only fall within the scope of the claims of the present invention.
Claims (9)
1. The concrete antifreezing agent is characterized by comprising the following raw material components in parts by weight: 20-35 parts of acrylic emulsion, 2-7 parts of hollow glass beads, 0.4-1 part of tea saponin, 25-40 parts of sodium hydroxymethyl cellulose, 8-15 parts of alkyl glycoside, 0.1-0.3 part of sodium sulfosuccinate, 30-50 parts of water reducing agent and 180 parts of water, wherein the weight part ratio of the acrylic emulsion to the hollow glass beads is 5-10.
2. The concrete antifreeze of claim 1, comprising the following raw materials in parts by weight: 25-30 parts of acrylic emulsion, 4-6 parts of hollow glass beads, 0.5-0.8 part of tea saponin, 30-38 parts of sodium hydroxymethyl cellulose, 10-13 parts of alkyl glycoside, 0.1-0.3 part of sodium sulfosuccinate, 35-45 parts of water reducing agent and 160 parts of water 130-containing material, wherein the weight part ratio of the acrylic emulsion to the hollow glass beads is 5-7.
3. The concrete antifreeze of claim 1, comprising the following raw materials in parts by weight: 28 parts of acrylic emulsion, 5 parts of hollow glass beads, 0.7 part of tea saponin, 35 parts of sodium hydroxymethyl cellulose, 12 parts of alkyl glycoside, 0.2 part of sodium sulfosuccinate, 42 parts of water reducing agent and 147 parts of water, wherein the weight part ratio of the acrylic emulsion to the hollow glass beads is 5.6.
4. The concrete antifreezer of claim 1, wherein: the water reducing agent is sodium lignosulphonate.
5. The concrete antifreezer of claim 1, wherein: the diameter of the hollow glass bead is 100-250 mu m.
6. A method for preparing the concrete antifreeze of any one of claims 1 to 5, which comprises the following steps:
mixing sodium carboxymethylcellulose, a water reducing agent and 1/4 total amount of water, and uniformly stirring to obtain a mixture A;
mixing tea saponin, alkyl glycoside, sodium sulfosuccinate and 2/4 total amount of water, and stirring to obtain mixture B;
mixing acrylic emulsion with water in the total amount of 1/4, adding hollow glass beads for three times, and stirring and mixing at the speed of 30-50r/min for 2-3min after adding the hollow glass beads each time to obtain a mixture C;
and adding the mixture A and the mixture B into the mixture C, and stirring at the speed of 30-50r/min for 5-10min to obtain the concrete antifreezing agent.
7. The preparation method according to claim 6, wherein in the preparation process of the mixture C, the hollow glass is added according to the following addition amounts: the total amount of the hollow glass microspheres of 2/4 was added for the first time, 1/4 was added for the second time, and 1/4 was added for the third time.
8. The method of claim 6, wherein: in the preparation process of the mixture A, the mixture A is obtained by continuously stirring at the speed of 300-500r/min for 5-10min at the temperature of 23-30 ℃.
9. The method of claim 6, wherein: in the preparation process of the mixture B, the mixture B is obtained by continuously stirring at the speed of 300-500r/min for 25-40min at the temperature of 25-35 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811566761.8A CN109503021B (en) | 2018-12-20 | 2018-12-20 | Concrete antifreezing agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811566761.8A CN109503021B (en) | 2018-12-20 | 2018-12-20 | Concrete antifreezing agent and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109503021A CN109503021A (en) | 2019-03-22 |
| CN109503021B true CN109503021B (en) | 2021-03-05 |
Family
ID=65753985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811566761.8A Expired - Fee Related CN109503021B (en) | 2018-12-20 | 2018-12-20 | Concrete antifreezing agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109503021B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112409865A (en) * | 2020-10-17 | 2021-02-26 | 广东中科壹家科技有限公司 | High-viscosity building waterproof material and preparation method thereof |
| CN113233857B (en) * | 2021-05-27 | 2022-11-29 | 广州市贤达建材有限公司 | Anti-freezing autoclaved aerated building block and preparation method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100914048B1 (en) * | 2008-07-01 | 2009-08-28 | 김흠 | Elastic pavement containing thermoplastic and elastic particle for road of walker and bicycle, and paving method thereof |
| CN102225855A (en) * | 2011-04-13 | 2011-10-26 | 东莞市东物合成材料有限公司 | Wear-resistant noise-reducing thermal-insulating modified emulsified asphalt mortar paint |
| CN102887675A (en) * | 2012-09-03 | 2013-01-23 | 蚌埠爱民汽车服务有限公司五河新型环保建材厂 | Air-added brick taking hollow glass beads as filler and method for processing air-added brick |
| CN105271931A (en) * | 2015-11-16 | 2016-01-27 | 苏州大乘环保建材有限公司 | Light heat insulation facing mortar and preparation method thereof |
| CN105731867A (en) * | 2016-02-03 | 2016-07-06 | 陈翔 | Concrete antifreezer and preparing method thereof |
| CN106116300A (en) * | 2016-06-28 | 2016-11-16 | 郭迎庆 | A kind of preparation method of antifreeze premixing mortar |
| CN106116232A (en) * | 2016-06-24 | 2016-11-16 | 桂林华越环保科技有限公司 | A kind of anti-freezing concrete water reducer |
| CN107235652A (en) * | 2017-06-30 | 2017-10-10 | 徐州市耐力高分子科技有限公司 | A kind of concrete antifreezer |
| CN107935451A (en) * | 2017-12-04 | 2018-04-20 | 江苏永宸建材科技有限公司 | A kind of lacquer and preparation method thereof |
| CN108975796A (en) * | 2016-12-27 | 2018-12-11 | 刘曲波 | A kind of manufacturing method of anti-freezing and heat-insulating mortar |
-
2018
- 2018-12-20 CN CN201811566761.8A patent/CN109503021B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100914048B1 (en) * | 2008-07-01 | 2009-08-28 | 김흠 | Elastic pavement containing thermoplastic and elastic particle for road of walker and bicycle, and paving method thereof |
| CN102225855A (en) * | 2011-04-13 | 2011-10-26 | 东莞市东物合成材料有限公司 | Wear-resistant noise-reducing thermal-insulating modified emulsified asphalt mortar paint |
| CN102887675A (en) * | 2012-09-03 | 2013-01-23 | 蚌埠爱民汽车服务有限公司五河新型环保建材厂 | Air-added brick taking hollow glass beads as filler and method for processing air-added brick |
| CN105271931A (en) * | 2015-11-16 | 2016-01-27 | 苏州大乘环保建材有限公司 | Light heat insulation facing mortar and preparation method thereof |
| CN105731867A (en) * | 2016-02-03 | 2016-07-06 | 陈翔 | Concrete antifreezer and preparing method thereof |
| CN106116232A (en) * | 2016-06-24 | 2016-11-16 | 桂林华越环保科技有限公司 | A kind of anti-freezing concrete water reducer |
| CN106116300A (en) * | 2016-06-28 | 2016-11-16 | 郭迎庆 | A kind of preparation method of antifreeze premixing mortar |
| CN108975796A (en) * | 2016-12-27 | 2018-12-11 | 刘曲波 | A kind of manufacturing method of anti-freezing and heat-insulating mortar |
| CN107235652A (en) * | 2017-06-30 | 2017-10-10 | 徐州市耐力高分子科技有限公司 | A kind of concrete antifreezer |
| CN107935451A (en) * | 2017-12-04 | 2018-04-20 | 江苏永宸建材科技有限公司 | A kind of lacquer and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 掺合料对引气混凝土抗冻性的影响研究;徐长伟 等;《混凝土》;20131231(第12期);97-99 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109503021A (en) | 2019-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109437721B (en) | Anti-freezing concrete and processing technology thereof | |
| CN108840608B (en) | Anti-freezing concrete and preparation method thereof | |
| CN110272244B (en) | Crack-resistant concrete and preparation process thereof | |
| CN112851250A (en) | High-strength recycled concrete and preparation method and application thereof | |
| CN109354463B (en) | Anti-seepage and anti-freezing C30 concrete and preparation method thereof | |
| CN115286286B (en) | Efficient water reducing agent for concrete and preparation method thereof | |
| CN111099860A (en) | High-performance anti-freezing concrete and preparation method thereof | |
| CN110372290B (en) | High-content volcanic ash foamed concrete material and preparation method thereof | |
| CN108585927A (en) | A kind of nano-cellulose aerogel thermal insulation board and preparation method thereof | |
| CN109503021B (en) | Concrete antifreezing agent and preparation method thereof | |
| CN111689790A (en) | Light high-strength cement-based foam thermal insulation material and preparation method thereof | |
| CN111875316A (en) | Water-absorbent resin plastic concrete and preparation method thereof | |
| CN109574583B (en) | High-strength concrete and preparation method thereof | |
| CN109485299B (en) | Multi-effect concrete structure self-waterproof additive with self-repairing capability | |
| CN114213063A (en) | Moisturizing self-curing concrete and preparation method thereof | |
| CN112723914B (en) | Concrete surface reinforcing agent and preparation method thereof | |
| CN101580351B (en) | Method for preparing air entraining agent for concrete | |
| KR101885673B1 (en) | Cement or non-cement-based solidifier containing novel-shape admixture and preparation method thereof | |
| CN116730680A (en) | High-crack-resistance concrete and preparation method thereof | |
| CN110590282A (en) | High-strength freeze-thaw-preventing concrete | |
| CN116375402A (en) | Steel slag base polymer energy-absorbing material and preparation method thereof | |
| CN113603387B (en) | Waterproof concrete synergist and preparation method thereof | |
| CN108975758A (en) | Foam concrete special additive | |
| CN113135717B (en) | LC30 light-weight high-strength pumping ceramsite concrete and preparation method thereof | |
| CN108623231A (en) | A kind of lightweight aggregate concrete and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220210 Address after: 050000 north of xinwangshe village, Jingxing mining area, Shijiazhuang City, Hebei Province Patentee after: SHIJIAZHUANG MINING AREA HONGYUAN CONCRETE MIXING Co.,Ltd. Address before: 050100 Jiazhuang Village North (Pingshe Road East), Jingxing mining area, Shijiazhuang City, Hebei Province Patentee before: SHIJIAZHUANG ZHUXIN CONCRETE Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210305 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |