CN108298906A - A kind of preparation method of permanent seal cooling frost-resistant concrete - Google Patents
A kind of preparation method of permanent seal cooling frost-resistant concrete Download PDFInfo
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- CN108298906A CN108298906A CN201810137832.6A CN201810137832A CN108298906A CN 108298906 A CN108298906 A CN 108298906A CN 201810137832 A CN201810137832 A CN 201810137832A CN 108298906 A CN108298906 A CN 108298906A
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- permanent seal
- seal cooling
- resistant concrete
- fermentation
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
- C04B40/0046—Premixtures of ingredients characterised by their processing, e.g. sequence of mixing the ingredients when preparing the premixtures
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
Abstract
The present invention relates to a kind of preparation methods of permanent seal cooling frost-resistant concrete, belong to construction material preparing technical field.The present invention is first using the pomelo peel rich in plants essential oil and arene substance as raw material, extraction obtains pomelo peel oil, then with oyster shell it is again raw material, it grinds to obtain rich oyster shell powder calciferous, fermentation is blended in oyster shell part and SILICA FUME, pomelo peel oil and obtains self-control freeze thawing resistance additive, freeze thawing resistance additive and cement will finally be made by oneself, thickness river sand and other auxiliary materials are blended, permanent seal cooling frost-resistant concrete is made, the freeze-thaw resistance of permanent seal cooling frost-resistant concrete produced by the present invention is splendid, has broad application prospects.
Description
Technical field
The present invention relates to a kind of preparation methods of permanent seal cooling frost-resistant concrete, belong to construction material preparing technical field.
Background technology
Increasingly reinforce with the idea of sustainable development, people gradually recognize that concrete is not as in people's imagination
It is durable, come to realise the importance of concrete durability.Concrete durability refers to concrete may cause coagulation various
The ability of its shape, quality and applicability is still kept in the environment of the performance deterioration of soil.Common lasting hazard mainly has mixed
Solidifying soil cracking seam, carbonization, freeze-thaw damage, steel bar corrosion, water quality erosion, leakage and corrosion etc., wherein more apparent with freeze-thaw damage.
Environment residing for concrete structure is every have positive subzero temperature alternately variation and inside concrete enough full water when, Chang Hui
Cause to crack and flake off, seriously threatens the durability of concrete.For the concrete structure positioned at cold district, especially
Those are in the structure in dry wet alternating environment, such as dam, bridge pier, culvert, harbour, Wharf Engineering.Concrete often due to
Alternate Frozen-thawed cycled effect and destroy, freeze-thaw damage is serious, influences the normal operation of hydraulic structure, and shortens it and make
Use the service life.There are the holes of different-diameter for inside concrete, it is considered that this some holes has detrimental effect to the frost resistance of concrete.
The frost resistance of actually concrete is related with pore property, and pore structure is the important content of Meso-level Structure of Concrete, it is directly
Influence many performances of concrete（Frost resistance, durability）Deng.Maturing pore structure parameter includes that porosity, aperture are big
Small, pore-size distribution, hole shape and air-void spacing factor etc..Pore size determines the general aperture of the freezing point of hole solution in concrete
Smaller freezing point is lower also low to reduce the frost resistance for improving concrete to the destruction of concrete caused by icing at ice rate.
Therefore, invent that a kind of persistence is good, freeze proof new concrete has construction material preparing technical field positive
Meaning.
Invention content
Present invention mainly solves the technical issues of, it is poor for the freeze-thaw resistance of current normal concrete, be easy after freeze-thaw
Cause to crack and flake off, seriously threaten the defect of the durability of concrete, provides a kind of system of permanent seal cooling frost-resistant concrete
Preparation Method.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of preparation method of permanent seal cooling frost-resistant concrete, it is characterised in that specifically preparation process is：
（1）Fresh grapefruit skin is weighed, 10~12h is impregnated with clarification limewash, the pomelo peel after immersion is put into juice extractor and is pressed
Squeezing is handled, and is separated by filtration to obtain pressed liquor, and 20~30min, stirring knot is mixed in pressed liquor and sodium bicarbonate and sodium sulphate
Filtrate is obtained by filtration after beam, filtrate is fitted into stratification in separatory funnel, isolated upper oil phase is oily to get pomelo peel,
It is spare；
（2）It weighs and is rinsed 3~5 times with deionized water again after oyster shell is cooked with boiling water, is put into ball grinder after flushing, and press ball
Expect that mass ratio is 20:1 zirconium oxide ball milling pearl is added into ball grinder, and 1~2h of ball-milling treatment is sieved with 100 mesh sieve after ball milling, is received
Collection sieving powder is to get oyster shell powder；
（3）SILICA FUME, above-mentioned oyster shell powder and spare pomelo peel oil are uniformly mixed and obtain fermentation substrate, by fermentation substrate
It is fitted into fermentation tank, then bacillus thuringiensis bacteria suspension is added into fermentation tank, be sealed by fermentation after being stirred evenly with no bacteria stick
Tank；
（4）Above-mentioned sealed fermenter is put into greenhouse, stands and is sealed by fermentation 5~7 days, after fermentation, take out tunning,
Up to self-control freeze thawing resistance additive；
（5）It counts in parts by weight, weighs 100~200 parts of Portland cements, 50~80 parts of above-mentioned self-control freeze thawing resistance additions
Material, 50~60 parts of coarse aggregate river sands, 50~60 parts of fine aggregate river sands, 5~10 parts of sodium carboxymethylcelluloses, 3~5 parts of carbon nanometers
Pipe, 2~4 parts of sodium lignin sulfonates are mixed to get dry blend；
（6）It is fitted into blender after above-mentioned dry blend and water are mixed, insulated and stirred mixes 1~2h, discharges after stirring, i.e.,
Obtain permanent seal cooling frost-resistant concrete.
Step（1）Described in pressed liquor and the mass ratio of sodium bicarbonate and sodium sulphate be 400:20:1.
Step（2）Described in boiling water brew time be 1~2h.
Step（3）Described in SILICA FUME, oyster shell powder and pomelo peel oil mass ratio be 2:1:1, Su Yun gold gemma
The addition of bacillus bacteria suspension is the 10% of fermentation substrate quality, a concentration of the 10 of bacillus thuringiensis bacteria suspension6cfu/mL。
Step（4）Described in greenhouse temperature be 40~50 DEG C, relative air humidity is 60~70%.
Step（6）Described in dry blend and water mass ratio be 3:1, the temperature of insulated and stirred mixing is 45~50 DEG C,
The rotating speed of insulated and stirred mixing is 50~60r/min.
The beneficial effects of the invention are as follows：
（1）For the present invention first using the pomelo peel rich in plants essential oil and arene substance as raw material, extraction obtains pomelo peel oil,
Then with oyster shell it is again raw material, grinds to obtain rich oyster shell powder calciferous, by oyster shell part and SILICA FUME, shaddock
Skin oil be blended fermentation obtains self-control freeze thawing resistance additive, finally will self-control freeze thawing resistance additive and cement, thickness river sand and its
He is blended auxiliary material, permanent seal cooling frost-resistant concrete is made, self-control freeze thawing resistance additive of the invention is by made from fermentation, sending out
During ferment, pomelo peel oil is degraded and generates a large amount of free property ester groups and aryl by microorganism first, and in microorganism
These ester groups and aryl are introduced into oyster shell powder and SILICA FUME surface under self-crosslinking, in oyster shell powder and micro- silicon
Powder surface increases hydrophobic ester group and aryl quantity, these hydrophobic groups are drawn also with self-control freeze thawing resistance additive
Enter inside concrete, so that the water resistance of concrete is improved, to avoid Infiltration to inside concrete, subtracts
Few inside concrete moisture content can freeze water, thus improve the freezing tolerance of concrete；
（2）Due to the addition of self-control freeze thawing resistance additive in the frost-resistant concrete of the present invention, also introduced to inside concrete micro-
The introducing purpose of silica flour and calcium carbonate and a large amount of microorganisms, first SILICA FUME is that SILICA FUME can be with concrete water muddy water
Metaplasia at calcium hydroxide reaction form C-S-H gels, reduce concrete pore volume, improve interfacial structure and cohesive force,
To improve the intensity of concrete, the durability of concrete is improved, while SILICA FUME filling effect has refined the microcosmic of concrete
Structure, ultra-fine hole significantly increases, and the freezing point of ultra-fine Kong Zhongshui is relatively low, to improve the freezing and thawing performance of concrete, and it is micro-
The spore and oyster shell powder of biology are effectively filled in the internal void of concrete, due in air carbon dioxide, deposit in water
In free carbon dioxide and carbanion, easily react with the calcium carbonate crystal seed in oyster shell so that in oyster shell
Calcium carbonate crystal seed constantly grow up, play the role of blind, filling capillary channel, the in addition bacterial spore under drying regime
In a dormant state, until water enters crack and activates bacterial spore, bacterial spore, which makes remaining pomelo peel oleic acid lose, to be had
Machine acid, effectively bears the high alkalinity of concrete, and generate a large amount of heat, is conducive to the crystal seed growth of calcium carbonate, crystallized
Journey is activated repeatedly, and in the life cycle of concrete structure, crystalline solid is continuously grown, until inside concrete is split
Seam filling is complete, improves the consistency of concrete, achievees the purpose that enhance concrete durability and frost resistance, has wide answer
Use foreground.
Specific implementation mode
Fresh grapefruit skin is weighed, 10~12h is impregnated with clarification limewash, the pomelo peel after immersion is put into juice extractor and is pressed
Squeezing is handled, and is separated by filtration to obtain pressed liquor, is 400 in mass ratio by pressed liquor and sodium bicarbonate and sodium sulphate:20:1 mixing is stirred
20~30min is mixed, filtrate is obtained by filtration after stirring, filtrate is fitted into stratification in separatory funnel, isolated upper layer
Oil phase is spare to get pomelo peel oil；It weighs after oyster shell boiling water cooks 1~2h and is rinsed 3~5 times with deionized water again, rinsed
After be put into ball grinder, and by ball material mass ratio be 20:1 into ball grinder be added zirconium oxide ball milling pearl, 1~2h of ball-milling treatment,
It is sieved with 100 mesh sieve after ball milling, collects sieving powder to get oyster shell powder；It is 2 in mass ratio:1:1 by SILICA FUME, oyster shell
Powder and spare pomelo peel oil, which are uniformly mixed, obtains fermentation substrate, fermentation substrate is fitted into fermentation tank, then into fermentation tank
It is added a concentration of the 10 of fermentation substrate quality 10%6The bacillus thuringiensis bacteria suspension of cfu/mL, after being stirred evenly with no bacteria stick
Sealed fermenter；Sealed fermenter is put into the greenhouse that temperature is 40~50 DEG C, relative air humidity is 60~70%, is stood
It is sealed by fermentation 5~7 days, after fermentation, takes out tunning to get self-control freeze thawing resistance additive；It counts, weighs in parts by weight
100~200 parts of Portland cements, 50~80 parts of above-mentioned self-control freeze thawing resistance additives, 50~60 parts of coarse aggregate river sands, 50~
60 parts of fine aggregate river sands, 5~10 parts of sodium carboxymethylcelluloses, 3~5 parts of carbon nanotubes, 2~4 parts of sodium lignin sulfonates mix
To dry blend；It is 3 in mass ratio by dry blend and water:It being fitted into blender after 1 mixing, control whipping temp is 45~50 DEG C,
Speed of agitator is 50~60r/min, and insulated and stirred mixes 1~2h, and discharging is to get permanent seal cooling frost-resistant concrete after stirring.
Example 1
Fresh grapefruit skin is weighed, impregnates 10h with clarification limewash, the pomelo peel after immersion, which is put into squeezing in juice extractor, to be handled,
It is separated by filtration to obtain pressed liquor, is 400 in mass ratio by pressed liquor and sodium bicarbonate and sodium sulphate:20:1 is mixed 20min,
Filtrate is obtained by filtration after stirring, filtrate is fitted into stratification in separatory funnel, isolated upper oil phase is to get shaddock
Skin oil, it is spare；It weighs after oyster shell boiling water cooks 1h and is rinsed 3 times with deionized water again, is put into ball grinder after flushing, and press
Ball material mass ratio is 20:1 zirconium oxide ball milling pearl is added into ball grinder, and ball-milling treatment 1h is sieved with 100 mesh sieve after ball milling, is received
Collection sieving powder is to get oyster shell powder；It is 2 in mass ratio:1:1 mixes SILICA FUME, oyster shell powder and spare pomelo peel oil
Conjunction uniformly obtains fermentation substrate, and fermentation substrate is fitted into fermentation tank, then the dense of fermentation substrate quality 10% is added into fermentation tank
Degree is 106The bacillus thuringiensis bacteria suspension of cfu/mL stirs evenly rear sealed fermenter with no bacteria stick；By sealed fermenter
It is put into the greenhouse that temperature is 40 DEG C, relative air humidity is 60%, stands and be sealed by fermentation 5 days, after fermentation, take out fermentation
Product is to get self-control freeze thawing resistance additive；It counts in parts by weight, weighs 100 parts of Portland cements, 50 parts of above-mentioned self-controls resist
Freeze thawing additive, 50 parts of coarse aggregate river sands, 50 parts of fine aggregate river sands, 5 parts of sodium carboxymethylcelluloses, 3 parts of carbon nanotubes, 2 parts of wood
Quality sodium sulfonate is mixed to get dry blend；It is 3 in mass ratio by dry blend and water:It is fitted into blender after 1 mixing, control stirring
Temperature is 45 DEG C, speed of agitator 50r/min, and insulated and stirred mixes 1h, and discharging is to get the freeze proof coagulation of permanent seal cooling after stirring
Soil.
Example 2
Fresh grapefruit skin is weighed, impregnates 11h with clarification limewash, the pomelo peel after immersion, which is put into squeezing in juice extractor, to be handled,
It is separated by filtration to obtain pressed liquor, is 400 in mass ratio by pressed liquor and sodium bicarbonate and sodium sulphate:20:1 is mixed 25min,
Filtrate is obtained by filtration after stirring, filtrate is fitted into stratification in separatory funnel, isolated upper oil phase is to get shaddock
Skin oil, it is spare；It weighs after oyster shell boiling water cooks 1h and is rinsed 4 times with deionized water again, is put into ball grinder after flushing, and press
Ball material mass ratio is 20:1 zirconium oxide ball milling pearl is added into ball grinder, and ball-milling treatment 1h is sieved with 100 mesh sieve after ball milling, is received
Collection sieving powder is to get oyster shell powder；It is 2 in mass ratio:1:1 mixes SILICA FUME, oyster shell powder and spare pomelo peel oil
Conjunction uniformly obtains fermentation substrate, and fermentation substrate is fitted into fermentation tank, then the dense of fermentation substrate quality 10% is added into fermentation tank
Degree is 106The bacillus thuringiensis bacteria suspension of cfu/mL stirs evenly rear sealed fermenter with no bacteria stick；By sealed fermenter
It is put into the greenhouse that temperature is 45 DEG C, relative air humidity is 65%, stands and be sealed by fermentation 6 days, after fermentation, take out fermentation
Product is to get self-control freeze thawing resistance additive；It counts in parts by weight, weighs 150 parts of Portland cements, 65 parts of above-mentioned self-controls resist
Freeze thawing additive, 55 parts of coarse aggregate river sands, 55 parts of fine aggregate river sands, 8 parts of sodium carboxymethylcelluloses, 4 parts of carbon nanotubes, 3 parts of wood
Quality sodium sulfonate is mixed to get dry blend；It is 3 in mass ratio by dry blend and water:It is fitted into blender after 1 mixing, control stirring
Temperature is 46 DEG C, speed of agitator 55r/min, and insulated and stirred mixes 1h, and discharging is to get the freeze proof coagulation of permanent seal cooling after stirring
Soil.
Example 3
Fresh grapefruit skin is weighed, impregnates 12h with clarification limewash, the pomelo peel after immersion, which is put into squeezing in juice extractor, to be handled,
It is separated by filtration to obtain pressed liquor, is 400 in mass ratio by pressed liquor and sodium bicarbonate and sodium sulphate:20:1 is mixed 30min,
Filtrate is obtained by filtration after stirring, filtrate is fitted into stratification in separatory funnel, isolated upper oil phase is to get shaddock
Skin oil, it is spare；It weighs after oyster shell boiling water cooks 2h and is rinsed 5 times with deionized water again, is put into ball grinder after flushing, and press
Ball material mass ratio is 20:1 zirconium oxide ball milling pearl is added into ball grinder, and ball-milling treatment 2h is sieved with 100 mesh sieve after ball milling, is received
Collection sieving powder is to get oyster shell powder；It is 2 in mass ratio:1:1 mixes SILICA FUME, oyster shell powder and spare pomelo peel oil
Conjunction uniformly obtains fermentation substrate, and fermentation substrate is fitted into fermentation tank, then the dense of fermentation substrate quality 10% is added into fermentation tank
Degree is 106The bacillus thuringiensis bacteria suspension of cfu/mL stirs evenly rear sealed fermenter with no bacteria stick；By sealed fermenter
It is put into the greenhouse that temperature is 50 DEG C, relative air humidity is 70%, stands and be sealed by fermentation 7 days, after fermentation, take out fermentation
Product is to get self-control freeze thawing resistance additive；It counts in parts by weight, weighs 200 parts of Portland cements, 80 parts of above-mentioned self-controls resist
Freeze thawing additive, 60 parts of coarse aggregate river sands, 60 parts of fine aggregate river sands, 10 parts of sodium carboxymethylcelluloses, 5 parts of carbon nanotubes, 4 parts of wood
Quality sodium sulfonate is mixed to get dry blend；It is 3 in mass ratio by dry blend and water:It is fitted into blender after 1 mixing, control stirring
Temperature is 50 DEG C, speed of agitator 60r/min, and insulated and stirred mixes 2h, and discharging is to get the freeze proof coagulation of permanent seal cooling after stirring
Soil.
Reference examples
With normal concrete example as a contrast, to the common coagulation in permanent seal cooling frost-resistant concrete produced by the present invention and reference examples
Soil carries out performance detection, and testing result is as shown in table 1：
Detection method
Fast jelly experiment has been carried out by the 2 groups of core samples of fast jelly method pair of GBJ 82-1985（Freezing-thawing test is only that evaluation is marked with mass loss
It is accurate）
1 performance test results of table
| Detection project | Example 1 | Example 2 | Example 3 | Reference examples |
| 50 inferior quality of Frozen-thawed cycled is lost（%） | 0 | 0 | 0 | 1 |
| 80 inferior quality of Frozen-thawed cycled is lost（%） | 1 | 1 | 1 | 5 |
| 100 inferior quality of Frozen-thawed cycled is lost（%） | 1 | 1 | 1 | 20 |
| 50 hypoelasticity modulus lost of Frozen-thawed cycled（%） | 1 | 1 | 1 | 1 |
| 80 hypoelasticity modulus lost of Frozen-thawed cycled（%） | 2 | 2 | 2 | 8 |
| 100 hypoelasticity modulus lost of Frozen-thawed cycled（%） | 2 | 2 | 2 | 12 |
The freeze-thaw resistance of permanent seal cooling frost-resistant concrete produced by the present invention is splendid it can be seen from detection data in upper table, has
Wide application prospect.
Claims (6)
1. a kind of preparation method of permanent seal cooling frost-resistant concrete, it is characterised in that specifically preparation process is：
（1）Fresh grapefruit skin is weighed, 10~12h is impregnated with clarification limewash, the pomelo peel after immersion is put into juice extractor and is pressed
Squeezing is handled, and is separated by filtration to obtain pressed liquor, and 20~30min, stirring knot is mixed in pressed liquor and sodium bicarbonate and sodium sulphate
Filtrate is obtained by filtration after beam, filtrate is fitted into stratification in separatory funnel, isolated upper oil phase is oily to get pomelo peel,
It is spare；
（2）It weighs and is rinsed 3~5 times with deionized water again after oyster shell is cooked with boiling water, is put into ball grinder after flushing, and press ball
Expect that mass ratio is 20:1 zirconium oxide ball milling pearl is added into ball grinder, and 1~2h of ball-milling treatment is sieved with 100 mesh sieve after ball milling, is received
Collection sieving powder is to get oyster shell powder；
（3）SILICA FUME, above-mentioned oyster shell powder and spare pomelo peel oil are uniformly mixed and obtain fermentation substrate, by fermentation substrate
It is fitted into fermentation tank, then bacillus thuringiensis bacteria suspension is added into fermentation tank, be sealed by fermentation after being stirred evenly with no bacteria stick
Tank；
（4）Above-mentioned sealed fermenter is put into greenhouse, stands and is sealed by fermentation 5~7 days, after fermentation, take out tunning,
Up to self-control freeze thawing resistance additive；
（5）It counts in parts by weight, weighs 100~200 parts of Portland cements, 50~80 parts of above-mentioned self-control freeze thawing resistance additions
Material, 50~60 parts of coarse aggregate river sands, 50~60 parts of fine aggregate river sands, 5~10 parts of sodium carboxymethylcelluloses, 3~5 parts of carbon nanometers
Pipe, 2~4 parts of sodium lignin sulfonates are mixed to get dry blend；
（6）It is fitted into blender after above-mentioned dry blend and water are mixed, insulated and stirred mixes 1~2h, discharges after stirring, i.e.,
Obtain permanent seal cooling frost-resistant concrete.
2. a kind of preparation method of permanent seal cooling frost-resistant concrete according to claim 1, it is characterised in that：Step（1）In
The mass ratio of the pressed liquor and sodium bicarbonate and sodium sulphate is 400:20:1.
3. a kind of preparation method of permanent seal cooling frost-resistant concrete according to claim 1, it is characterised in that：Step（2）In
The boiling water brew time is 1~2h.
4. a kind of preparation method of permanent seal cooling frost-resistant concrete according to claim 1, it is characterised in that：Step（3）In
The mass ratio of the SILICA FUME, oyster shell powder and pomelo peel oil is 2:1:1, the addition of bacillus thuringiensis bacteria suspension
It is the 10% of fermentation substrate quality, a concentration of the 10 of bacillus thuringiensis bacteria suspension6cfu/mL。
5. a kind of preparation method of permanent seal cooling frost-resistant concrete according to claim 1, it is characterised in that：Step（4）In
The temperature in the greenhouse is 40~50 DEG C, relative air humidity is 60~70%.
6. a kind of preparation method of permanent seal cooling frost-resistant concrete according to claim 1, it is characterised in that：Step（6）In
The mass ratio of the dry blend and water is 3:1, the temperature of insulated and stirred mixing is 45~50 DEG C, the rotating speed of insulated and stirred mixing
For 50~60r/min.
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| CN201810137832.6A CN108298906A (en) | 2018-02-10 | 2018-02-10 | A kind of preparation method of permanent seal cooling frost-resistant concrete |
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| CN201810137832.6A CN108298906A (en) | 2018-02-10 | 2018-02-10 | A kind of preparation method of permanent seal cooling frost-resistant concrete |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112551984A (en) * | 2020-12-14 | 2021-03-26 | 成都津芦海建筑科技有限公司 | Anti-freezing concrete and preparation method thereof |
| CN116332589A (en) * | 2023-02-06 | 2023-06-27 | 中铁十五局集团有限公司 | Environment-friendly low-temperature-resistant anti-cracking concrete and preparation method thereof |
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| CN106116295A (en) * | 2016-06-27 | 2016-11-16 | 许偏奎 | A kind of frost-resistant concrete |
| CN106278058A (en) * | 2016-08-28 | 2017-01-04 | 仇颖超 | A kind of preparation method of moistureproof Salt And Alkali Tolerance building mortar |
| CN106977230A (en) * | 2017-05-14 | 2017-07-25 | 石磊 | A kind of preparation method of water conservation self-repair type curing compound |
| CN107083847A (en) * | 2017-04-21 | 2017-08-22 | 孙祎 | A kind of method that utilization oyster shell and microorganism repair masonry |
| CN107117901A (en) * | 2017-05-14 | 2017-09-01 | 汪逸凡 | A kind of preparation method of regenerative pervious concrete |
| CN107602048A (en) * | 2017-08-30 | 2018-01-19 | 常州市绿意管道有限公司 | A kind of preparation method of polymer composite water-proof mortar |
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- 2018-02-10 CN CN201810137832.6A patent/CN108298906A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106116295A (en) * | 2016-06-27 | 2016-11-16 | 许偏奎 | A kind of frost-resistant concrete |
| CN106278058A (en) * | 2016-08-28 | 2017-01-04 | 仇颖超 | A kind of preparation method of moistureproof Salt And Alkali Tolerance building mortar |
| CN107083847A (en) * | 2017-04-21 | 2017-08-22 | 孙祎 | A kind of method that utilization oyster shell and microorganism repair masonry |
| CN106977230A (en) * | 2017-05-14 | 2017-07-25 | 石磊 | A kind of preparation method of water conservation self-repair type curing compound |
| CN107117901A (en) * | 2017-05-14 | 2017-09-01 | 汪逸凡 | A kind of preparation method of regenerative pervious concrete |
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| CN112551984A (en) * | 2020-12-14 | 2021-03-26 | 成都津芦海建筑科技有限公司 | Anti-freezing concrete and preparation method thereof |
| CN116332589A (en) * | 2023-02-06 | 2023-06-27 | 中铁十五局集团有限公司 | Environment-friendly low-temperature-resistant anti-cracking concrete and preparation method thereof |
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Application publication date: 20180720 |