CN111116107A - Slag powder glutinous rice mortar for historic building restoration and preparation method thereof - Google Patents
Slag powder glutinous rice mortar for historic building restoration and preparation method thereof Download PDFInfo
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- CN111116107A CN111116107A CN201911212684.0A CN201911212684A CN111116107A CN 111116107 A CN111116107 A CN 111116107A CN 201911212684 A CN201911212684 A CN 201911212684A CN 111116107 A CN111116107 A CN 111116107A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/006—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 mineral polymers, e.g. geopolymers of the Davidovits type
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/72—Repairing or restoring existing buildings or building materials
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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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Abstract
The invention discloses a slag powder glutinous rice mortar for historic building restoration and a preparation method thereof, wherein the slag powder glutinous rice mortar for historic building restoration comprises the following components in parts by weight: 18-42 parts of glutinous rice flour; 210-336 parts of calcium hydroxide powder; 90-144 parts of slag micro powder; 38-62 parts of fly ash; 338-542 parts of sand; 7-20 parts of an excitant; 207-483 parts of water. The invention has the advantages of low price, high hardening speed, high early strength and small contractibility.
Description
Technical Field
The invention relates to the field of building materials, in particular to slag powder glutinous rice mortar for historic building restoration and a preparation method thereof.
Background
The glutinous rice mortar is commonly used for structure construction in historic buildings, and some structures are fixed and gold soup up to now, and some historic buildings are damaged to different degrees due to inefficacy, and need to be repaired. Modern researchers take calcium hydroxide and sticky rice paste as main raw materials to prepare sticky rice mortar for repairing ancient buildings, and the speed and the quality of ancient building repair are influenced due to the defects of high price, low hardening speed, long maintenance period, low early strength, easiness in cracking, poor water resistance and the like. In view of the above, there is a need to develop a slag powder glutinous rice mortar for historic building restoration, which solves the above problems.
Disclosure of Invention
Aiming at the defects in the prior art, the invention mainly aims to provide the slag powder glutinous rice mortar for historic building restoration, which has the advantages of low price, high hardening speed, high early strength and small contractibility.
To achieve the above objects and other advantages in accordance with the present invention, there is provided a powdered slag glutinous rice mortar for historic building restoration, comprising, in parts by weight:
18-42 parts of glutinous rice flour;
210-336 parts of calcium hydroxide powder;
90-144 parts of slag micro powder;
38-62 parts of fly ash;
338-542 parts of sand;
7-20 parts of an excitant;
207-483 parts of water.
Optionally, the activator is prepared by mixing 5-14 parts of sodium hydroxide and 2-16 parts of sodium metasilicate.
Optionally, the method for preparing the slag powder glutinous rice mortar for historic building restoration comprises the following steps:
step 1, adding water and glutinous rice flour in designed parts into a stirring pot, and stirring to prepare glutinous rice pulp;
step 2, stirring and cooking the glutinous rice pulp prepared in the step 1, after boiling, maintaining the temperature of the glutinous rice pulp at 80-100 ℃ for 90-160 minutes until the glutinous rice pulp is viscous, taking the glutinous rice pulp out of the stirring pot, and cooling for 180-480 minutes;
and 3, uniformly stirring and mixing the glutinous rice slurry cooled in the step 2 with calcium hydroxide powder, slag micro powder, fly ash, sand and an exciting agent in the designed parts to obtain the slag powder glutinous rice slurry for repairing the ancient architecture.
Optionally, the calcium hydroxide powder has a purity of 97.3% and an apparent density of 0.85g/cm3The specific surface area is 12.4m2/g。
Optionally, the specific surface area of the slag powder is 4.14m2The pozzolanic activity index was 97.3% in 28 days.
Optionally, the specific surface area of the fly ash is 4.32m2The pozzolanic activity index was 89.2% in 28 days.
Optionally, the sand is river sand, and the average particle size is 195 μm.
Optionally, the purity of the sodium hydroxide powder is 98%.
Optionally, the sodium metasilicate particles have a purity of 97%.
One of the above technical solutions has the following advantages or beneficial effects: the sodium hydroxide can promote hydration reaction and improve hydration rate, so that the setting time is shortened, the coal ash and the slag powder generate geopolymer reaction in the sodium hydroxide solution environment, the generated high-strength geopolymer is favorable for improving the flexural strength and the compressive strength, and the generated geopolymer is filled in gaps of the calcium hydroxide powder to reduce the shrinkage rate of the sticky rice mortar.
Another technical scheme in the above technical scheme has the following advantages or beneficial effects: the addition of the sand can improve the strength of the sticky rice mortar, and the sodium metasilicate reacts with the calcium hydroxide powder to generate the tricalcium silicate with quick hardening and early strength, so that the curing time of the sticky rice mortar can be shortened, and the early strength of the sticky rice mortar can be improved.
Drawings
Fig. 1 is a flow chart illustrating a process for preparing a powdered slag-glutinous rice mortar for historic building restoration according to one embodiment of the present invention.
Detailed Description
The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, which will enable those skilled in the art to practice the present invention with reference to the accompanying specification.
It is stated that the following examples are carried out on a procurement or preparation basis of the following materials:
1) chemical pure Ca (OH) produced by Beichen Fangzheng chemical reagent factory2(calcium hydroxide, Ca (OH) thereof)2The content is more than 95 percent, and the purchase price is 300-;
2) glutinous rice produced by Living agricultural product development Limited company of Living being in Heilongjiang province is prepared by baking at 100-150 deg.C for 0.5-1.5h, taking out, grinding in a ball mill for 20-40min, and sieving with 200 mesh sieve to obtain the required glutinous rice powder;
3) the specific surface area of the first-grade fly ash produced by the third power plant in Nanchang city is more than 4.24m2The activity index is more than 84% in 28 days, and the purchase price is 180-;
4) s95 slag powder provided by Hanzhonghan steel novel building material limited company with specific surface area larger than 4.00m2The activity index of 28 days is more than 95 percent, and the purchase price is 240-;
5) chemical pure sodium silicate nonahydrate solid (Na) produced by Fochen chemical reagent factory in Tianjin2SiO3·9H2O), the content of sodium silicate in sodium silicate nonahydrate is more than 96 percent;
6) chemical pure NaOH solid (mass fraction is more than 96%) produced by Xilongsu science corporation.
Example 1
A ground slag glutinous rice mortar for historic building restoration, comprising:
18kg of glutinous rice flour;
calcium hydroxide powder, 210 kg;
90kg of slag micro powder;
38kg of fly ash;
338kg of sand;
7kg of excitant;
207kg of water.
Further, the activator is formed by mixing 5kg of sodium hydroxide and 2kg of sodium metasilicate.
Further, the present embodiment provides a method for preparing the slag powder glutinous rice mortar for historic building restoration, comprising the steps of:
step 1, adding water and glutinous rice flour in designed parts into a stirring pot, and stirring to prepare glutinous rice pulp;
step 2, stirring and cooking the glutinous rice paste prepared in the step 1, keeping the temperature of the glutinous rice paste at 80 ℃ for 160 minutes after the glutinous rice paste is boiled until the glutinous rice paste is viscous, taking out the glutinous rice paste from the stirring pot at the moment, and cooling for 480 minutes;
and 3, uniformly stirring and mixing the glutinous rice slurry cooled in the step 2 with calcium hydroxide powder, slag micro powder, fly ash, sand and an exciting agent in the designed parts to obtain the slag powder glutinous rice slurry for repairing the ancient architecture.
Further, the purity of the calcium hydroxide powder was 97.3%, and the apparent density was 0.85g/cm3The specific surface area is 12.4m2/g。
Further, the specific surface area of the slag powder is 4.14m2The pozzolanic activity index was 97.3% in 28 days.
Further, the specific surface area of the fly ash was 4.32m2The pozzolanic activity index was 89.2% in 28 days.
Further, the sand is river sand, and the average particle size is 195 microns.
Further, the purity of the sodium hydroxide powder was 98%.
Further, the purity of the sodium metasilicate particles was 97%.
Example 2
A ground slag glutinous rice mortar for historic building restoration, comprising:
24kg of glutinous rice flour;
250kg of calcium hydroxide powder;
102kg of slag micro powder;
45kg of fly ash;
385kg of sand;
activator, 11 kg;
267kg of water.
Further, the activator is prepared by mixing 7.7kg of sodium hydroxide and 3.3kg of sodium metasilicate.
Further, the present embodiment provides a method for preparing the slag powder glutinous rice mortar for historic building restoration, comprising the steps of:
step 1, adding water and glutinous rice flour in designed parts into a stirring pot, and stirring to prepare glutinous rice pulp;
step 2, stirring and cooking the glutinous rice pulp prepared in the step 1, after the glutinous rice pulp is boiled, maintaining the temperature of the glutinous rice pulp at 90 ℃ for 120 minutes until the glutinous rice pulp is viscous, taking the glutinous rice pulp out of the stirring pot at the moment, and cooling for 180 minutes;
and 3, uniformly stirring and mixing the glutinous rice slurry cooled in the step 2 with calcium hydroxide powder, slag micro powder, fly ash, sand and an exciting agent in the designed parts to obtain the slag powder glutinous rice slurry for repairing the ancient architecture.
Further, the purity of the calcium hydroxide powder was 97.3%, and the apparent density was 0.85g/cm3The specific surface area is 12.4m2/g。
Further, the specific surface area of the slag powder is 4.14m2The pozzolanic activity index was 97.3% in 28 days.
Further, the specific surface area of the fly ash was 4.32m2The pozzolanic activity index was 89.2% in 28 days.
Further, the sand is river sand, and the average particle size is 195 microns.
Further, the purity of the sodium hydroxide powder was 98%.
Further, the purity of the sodium metasilicate particles was 97%.
Example 3
A ground slag glutinous rice mortar for historic building restoration, comprising:
32kg of glutinous rice flour;
290kg of calcium hydroxide powder;
118kg of slag micro powder;
52kg of fly ash;
434kg of sand;
15kg of excitant;
329kg of water.
Further, the activator is formed by mixing 10.5kg of sodium hydroxide and 4.5kg of sodium metasilicate.
Further, the present embodiment provides a method for preparing the slag powder glutinous rice mortar for historic building restoration, comprising the steps of:
step 1, adding water and glutinous rice flour in designed parts into a stirring pot, and stirring to prepare glutinous rice pulp;
step 2, stirring and cooking the glutinous rice paste prepared in the step 1, keeping the temperature of the glutinous rice paste at 100 ℃ for 90 minutes after the glutinous rice paste is boiled until the glutinous rice paste is viscous, taking out the glutinous rice paste from the stirring pot at the moment, and cooling for 240 minutes;
and 3, uniformly stirring and mixing the glutinous rice slurry cooled in the step 2 with calcium hydroxide powder, slag micro powder, fly ash, sand and an exciting agent in the designed parts to obtain the slag powder glutinous rice slurry for repairing the ancient architecture.
Further, the purity of the calcium hydroxide powder was 97.3%, and the apparent density was 0.85g/cm3The specific surface area is 12.4m2/g。
Further, the specific surface area of the slag powder is 4.14m2The pozzolanic activity index was 97.3% in 28 days.
Further, the specific surface area of the fly ash was 4.32m2The pozzolanic activity index was 89.2% in 28 days.
Further, the sand is river sand, and the average particle size is 195 microns.
Further, the purity of the sodium hydroxide powder was 98%.
Further, the purity of the sodium metasilicate particles was 97%.
Example 4
A ground slag glutinous rice mortar for historic building restoration, comprising:
38kg of glutinous rice flour;
320kg of calcium hydroxide powder;
132kg of slag micro powder;
59kg of fly ash;
489kg of sand;
18kg of excitant;
398kg of water.
Further, the activator is formed by mixing 12.6kg of sodium hydroxide and 5.4kg of sodium metasilicate.
Further, the present embodiment provides a method for preparing the slag powder glutinous rice mortar for historic building restoration, comprising the steps of:
step 1, adding water and glutinous rice flour in designed parts into a stirring pot, and stirring to prepare glutinous rice pulp;
step 2, stirring and cooking the glutinous rice paste prepared in the step 1, after the glutinous rice paste is boiled, maintaining the temperature of the glutinous rice paste at 95 ℃ for 150 minutes until the glutinous rice paste is viscous, taking the glutinous rice paste out of the stirring pot at the moment, and cooling for 190 minutes;
and 3, uniformly stirring and mixing the glutinous rice slurry cooled in the step 2 with calcium hydroxide powder, slag micro powder, fly ash, sand and an exciting agent in the designed parts to obtain the slag powder glutinous rice slurry for repairing the ancient architecture.
Further, the purity of the calcium hydroxide powder was 97.3%, and the apparent density was 0.85g/cm3The specific surface area is 12.4m2/g。
Further, the specific surface area of the slag powder is 4.14m2The pozzolanic activity index was 97.3% in 28 days.
Further, the specific surface area of the fly ash was 4.32m2The pozzolanic activity index was 89.2% in 28 days.
Further, the sand is river sand, and the average particle size is 195 microns.
Further, the purity of the sodium hydroxide powder was 98%.
Further, the purity of the sodium metasilicate particles was 97%.
Example 5
A ground slag glutinous rice mortar for historic building restoration, comprising:
42kg of glutinous rice flour;
336kg of calcium hydroxide powder;
144kg of slag micro powder;
62kg of fly ash;
542kg of sand;
20kg of excitant;
483kg of water.
Further, the activator is formed by mixing 14.0kg of sodium hydroxide and 6.0kg of sodium metasilicate.
Further, the present embodiment provides a method for preparing the slag powder glutinous rice mortar for historic building restoration, comprising the steps of:
step 1, adding water and glutinous rice flour in designed parts into a stirring pot, and stirring to prepare glutinous rice pulp;
step 2, stirring and cooking the glutinous rice paste prepared in the step 1, keeping the temperature of the glutinous rice paste at 100 ℃ for 90 minutes after the glutinous rice paste is boiled until the glutinous rice paste is viscous, taking out the glutinous rice paste from the stirring pot at the moment, and cooling for 240 minutes;
and 3, uniformly stirring and mixing the glutinous rice slurry cooled in the step 2 with calcium hydroxide powder, slag micro powder, fly ash, sand and an exciting agent in the designed parts to obtain the slag powder glutinous rice slurry for repairing the ancient architecture.
Further, the purity of the calcium hydroxide powder was 97.3%, and the apparent density was 0.85g/cm3The specific surface area is 12.4m2/g。
Further, the specific surface area of the slag powder is 4.14m2The pozzolanic activity index was 97.3% in 28 days.
Further, the specific surface area of the fly ash was 4.32m2The pozzolanic activity index was 89.2% in 28 days.
Further, the sand is river sand, and the average particle size is 195 microns.
Further, the purity of the sodium hydroxide powder was 98%.
Further, the purity of the sodium metasilicate particles was 97%.
Next, some comparative examples are provided to compare with the above examples to further highlight the beneficial effects that can be achieved by the present invention.
Comparative example
Comparative example 1: a slag powder glutinous rice mortar, which is different from example 1 in that sodium hydroxide is not added to the slag powder glutinous rice mortar.
Comparative example 2: a slag powder glutinous rice mortar, which is different from example 1 in that sodium metasilicate is not added to the slag powder glutinous rice mortar.
Comparative example 3: a slag powder glutinous rice mortar, which is different from example 1 in that no fly ash is added to the slag powder glutinous rice mortar.
Comparative example 4: a slag powder glutinous rice mortar, which is different from example 1 in that sodium hydroxide and sodium metasilicate are not added to the slag powder glutinous rice mortar.
Comparative example 5: taking example 1 in the Chinese invention patent document with the application number of 201410584348.X and the invention name of modified glutinous rice mortar for masonry and the preparation method thereof as a contrast, firstly, the preparation of the glutinous rice mortar: weighing 100 parts of calcium hydroxide with the purity of 95%, the apparent density of 0.72g/cm3 and the specific surface area of 10.68m2/g, 75 parts of calcium carbonate with the particle size of 0.6-1 mm, 225 parts of calcium carbonate with the particle size of 0.3-0.6 mm, 225 parts of calcium carbonate with the particle size of 0.18-0.3 mm, 5 parts of pregelatinized glutinous rice flour with the amylopectin content of 92% and the apparent density of 0.17g/cm3, 1 part of France Aisen C-SP polycarboxylic acid water reducer and 1 part of hydroxypropyl methyl cellulose with the viscosity of 150000mPa & s, mixing the dry materials at the stirring speed of 500rpm for 5min, adding 95 parts of water, stirring at the speed of 1500rpm for 8min until the mortar is uniformly mixed to obtain the glutinous rice mortar.
Performance test of examples and comparative examples
Performance test the slag powder glutinous rice mortar was prepared in the same manner as in examples 1 to 5 and comparative examples 1 to 5, and various performances of the slag powder glutinous rice mortar were tested in the following manner, and the test results are shown in table 1: 1. setting time: testing according to JGJ/T70-2009 Standard test method for basic performance of building mortar;
2. shrinkage rate: testing according to JGJ/T70-2009 Standard test method for basic performance of building mortar;
3. compressive strength and flexural strength: testing according to GB/T50081-2002 standard of common concrete mechanical property test method;
TABLE 1 results of measuring properties of the sticky rice mortars prepared in examples and comparative examples
And (3) knotting: as can be seen from the data in Table 1, the slag powder-glutinous rice mortar prepared according to examples 1 to 5 has an initial setting time of within 1.43 hours, a short setting time, a rapid curing, a small shrinkage rate, a compressive strength of 3.21MPa or more at 3 days, a compressive strength of 23.56MPa or more at 90 days, a high compressive strength, and good properties.
Comparative example 1 since sodium hydroxide was not added to the slag powder glutinous rice mortar, the initial setting time of the slag powder glutinous rice mortar prepared in comparative example 1 was 2.75 hours, the curing was slow, and the shrinkage rate was large, and the 28-day compressive strength was reduced by 13.52MPa and the 28-day flexural strength was reduced by 0.90MPa compared to example 1, which shows that sodium hydroxide can accelerate the curing speed of the slag powder glutinous rice mortar, improve the strength of the slag powder glutinous rice mortar, and reduce the shrinkage rate.
Comparative example 2 since sodium metasilicate was not added to the slag powder glutinous rice mortar, the initial setting time of the glutinous rice mortar prepared in comparative example 2 was 2.23 hours, the setting time was long, the curing was slow, the 28-day compressive strength was reduced by 6.99MPa compared to example 1, and the 28-day flexural strength was reduced by 0.52MPa, indicating that sodium metasilicate can shorten the curing time of the slag powder glutinous rice mortar, accelerate the curing, reduce the shrinkage rate, and improve the strength.
Comparative example 3 since no fly ash is added to the slag powder glutinous rice mortar, the glutinous rice mortar prepared by the comparative example 3 has a longer curing time, a smaller flexural strength and compressive strength, and a larger shrinkage rate, which indicates that the fly ash can accelerate the curing of the slag powder glutinous rice mortar, reduce the shrinkage rate of the slag powder glutinous rice mortar, and improve the compressive strength and flexural strength.
Comparative example 4 because sodium hydroxide and sodium metasilicate were not added to the slag powder glutinous rice mortar, the glutinous rice mortar was cured for as long as 21.88 hours, the curing speed was slow, the compressive strength and the flexural strength were low, and the shrinkage rate was large, indicating that the compounding of sodium hydroxide and sodium silicate can accelerate the curing of the slag powder glutinous rice mortar, reduce the shrinkage rate of the slag powder glutinous rice mortar, and improve the strength of the slag powder glutinous rice mortar.
Comparative example 5 is a prior art prepared glutinous rice mortar, which has a slower curing time, lower strength and a larger shrinkage rate than the powdered slag glutinous rice mortar prepared in examples 1 to 5, showing that the powdered slag glutinous rice mortar prepared in the present invention has a fast curing speed, high strength and a small shrinkage rate.
The number of apparatuses and the scale of the process described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (9)
1. A slag powder glutinous rice mortar for historic building restoration, which is characterized by comprising the following components in parts by weight:
18-42 parts of glutinous rice flour;
210-336 parts of calcium hydroxide powder;
90-144 parts of slag micro powder;
38-62 parts of fly ash;
338-542 parts of sand;
7-20 parts of an excitant;
207-483 parts of water.
2. The slag powder glutinous rice mortar for antique construction restoration according to claim 1, wherein said excitant is a mixture of 5 to 14 parts by weight of sodium hydroxide and 2 to 16 parts by weight of sodium metasilicate.
3. The slag powder glutinous rice mortar for historic building restoration according to claim 1 or 2, wherein the method for preparing the slag powder glutinous rice mortar for historic building restoration comprises the steps of:
step 1, adding water and glutinous rice flour in designed parts into a stirring pot, and stirring to prepare glutinous rice pulp;
step 2, stirring and cooking the glutinous rice pulp prepared in the step 1, after boiling, maintaining the temperature of the glutinous rice pulp at 80-100 ℃ for 90-160 minutes until the glutinous rice pulp is viscous, taking the glutinous rice pulp out of the stirring pot, and cooling for 180-480 minutes;
and 3, uniformly stirring and mixing the glutinous rice slurry cooled in the step 2 with calcium hydroxide powder, slag micro powder, fly ash, sand and an exciting agent in the designed parts to obtain the slag powder glutinous rice slurry for repairing the ancient architecture.
4. The slag powder glutinous rice mortar for antique construction renovation according to claim 1, wherein the calcium hydroxide powder has a purity of 97.3% and an apparent density of 0.85g/cm3The specific surface area is 12.4m2/g。
5. The slag powder glutinous rice mortar for antique construction restoration according to claim 1, wherein the specific surface area of the slag powder is 4.14m2The pozzolanic activity index was 97.3% in 28 days.
6. The slag powder glutinous rice mortar for antique construction restoration according to claim 1, wherein the fly ash has a specific surface area of 4.32m2The pozzolanic activity index was 89.2% in 28 days.
7. The slag powder glutinous rice mortar for historic building repair of claim 1 wherein the sand is river sand having an average particle size of 195 μm.
8. The slag powder glutinous rice mortar for antique construction renovation according to claim 1, wherein the sodium hydroxide powder has a purity of 98%.
9. The slag powder glutinous rice mortar for historic building restoration according to claim 2, wherein the sodium metasilicate particles have a purity of 97%.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113785778A (en) * | 2021-09-14 | 2021-12-14 | 广西壮族自治区畜牧研究所 | Application of composite mud ground in buffalo fermentation bed cultivation |
| CN114105528A (en) * | 2021-12-28 | 2022-03-01 | 浙江特圣建材有限公司 | Novel energy-saving environment-friendly high-impermeability waterproof mortar and production process thereof |
| CN115849844A (en) * | 2022-11-30 | 2023-03-28 | 国文科保(北京)新材料科技开发有限公司 | Mortar material for filling joint of cultural relics building and preparation method and use method thereof |
| CN116924708A (en) * | 2023-09-18 | 2023-10-24 | 常熟理工学院 | Method for preparing silicate cement by utilizing waste incineration fly ash and nano material and product thereof |
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2019
- 2019-12-02 CN CN201911212684.0A patent/CN111116107A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113785778A (en) * | 2021-09-14 | 2021-12-14 | 广西壮族自治区畜牧研究所 | Application of composite mud ground in buffalo fermentation bed cultivation |
| CN114105528A (en) * | 2021-12-28 | 2022-03-01 | 浙江特圣建材有限公司 | Novel energy-saving environment-friendly high-impermeability waterproof mortar and production process thereof |
| CN114105528B (en) * | 2021-12-28 | 2022-12-02 | 浙江特圣建材有限公司 | Energy-saving environment-friendly high-impermeability waterproof mortar and production process thereof |
| CN115849844A (en) * | 2022-11-30 | 2023-03-28 | 国文科保(北京)新材料科技开发有限公司 | Mortar material for filling joint of cultural relics building and preparation method and use method thereof |
| CN116924708A (en) * | 2023-09-18 | 2023-10-24 | 常熟理工学院 | Method for preparing silicate cement by utilizing waste incineration fly ash and nano material and product thereof |
| CN116924708B (en) * | 2023-09-18 | 2024-01-23 | 常熟理工学院 | Method for preparing silicate cement by utilizing waste incineration fly ash and nano material and product thereof |
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Application publication date: 20200508 |