CN213771840U - Device for preparing reinforced regeneration surface porous material - Google Patents
Device for preparing reinforced regeneration surface porous material Download PDFInfo
- Publication number
- CN213771840U CN213771840U CN202022576883.4U CN202022576883U CN213771840U CN 213771840 U CN213771840 U CN 213771840U CN 202022576883 U CN202022576883 U CN 202022576883U CN 213771840 U CN213771840 U CN 213771840U
- Authority
- CN
- China
- Prior art keywords
- liquid
- valve
- box body
- carbonate solution
- microorganism
- 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.)
- Active
Links
Images
Landscapes
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The utility model provides a preparation is reinforceed regeneration surface porous material's device belongs to surface porous material and utilizes technical field. The utility model provides a device for preparing reinforced regeneration surface porous material, which comprises a processing box, a carbonate solution supply and recovery system, a microorganism mixed feed liquid supply and recovery system, a vacuum system and an air blowing system; wherein, handle regeneration surface porous material in the treatment box, supply and recovery system can realize the supply and the recovery of carbonate solution for carbonate solution supply and recovery system, and the mixed feed liquid supply of microorganism and recovery system can realize the supply and the recovery of the mixed feed liquid of microorganism, and vacuum system can handle the case and provide vacuum environment, and blower system can carry out the air-blowing to the treatment box in. The device provided by the utility model simple structure, each part connection relation reasonable in design can realize regeneration surface porous material's intensification.
Description
Technical Field
The utility model relates to a regeneration surface porous material utilizes technical field, especially relates to a device of preparation strengthening regeneration surface porous material.
Background
The regenerated surface porous material, such as regenerated brick particles, regenerated ceramic tile particles, regenerated cementing material particles and the like, has the characteristics of high porosity, high water absorption, small bulk density and high crushing index, so that the impermeability, the mechanical property and the like of the cementing composite material prepared by using the regenerated surface porous material as aggregate or admixture are reduced to different degrees and the quality is unstable after hardening compared with the common cementing composite material prepared by using quartz sand and stones as aggregate, and the utilization rate of the regenerated surface porous material is low. The method is one of effective ways for improving the utilization rate and improving the quality of the gelled composite material prepared by the method.
In the prior art, although a device for reinforcing recycled aggregate, such as a preparation device for reinforcing recycled aggregate by using microbial mineralization, has a single function and does not have a function of performing synergistic reinforcement; because the pores of the regenerated surface porous material (such as regenerated aggregate) are smaller, the solution containing the microorganisms needs to enter the pores for a longer time, and the microorganisms are influenced to play a mineralization role in the pores; oxygen can not well enter pores through external oxygen supply, microorganisms are influenced to play a mineralization role in the pores, and the pore blocking effect needs to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a device for preparing reinforced regeneration surface porous material, which can realize the reinforcement of regeneration surface porous material, and the prepared reinforced regeneration surface porous material has low porosity and water absorption rate, high strength and good quality stability; the self-repairing material is used as aggregate for preparing cement-based materials and has self-repairing performance.
In order to realize the purpose of the utility model, the utility model provides a following technical scheme:
the utility model provides a device for preparing a reinforced regeneration surface porous material, which comprises a processing box, a carbonate solution supply and recovery system, a microorganism mixed feed liquid supply and recovery system, a vacuum system and an air blowing system;
the treatment box comprises a box body 1, wherein a support 1-2 is arranged at the bottom inside the box body 1, a box body cover 1-14 is arranged at the top of the box body 1, and a first liquid inlet valve 1-4, a second liquid inlet valve 1-8, a first air valve 1-13 and an exhaust valve 1-12 are arranged on the box body cover 1-14; a base 1-1 is arranged at the bottom of the outer part of the box body 1, and a second air valve 1-16, a first drain valve 1-6 and a second drain valve 1-10 are arranged at the bottom of the box body 1;
the carbonate solution supply and recovery system comprises a carbonate solution supply barrel 2 and a carbonate solution recovery barrel 3; the carbonate solution supply barrel 2 is communicated with the first liquid inlet valve 1-4 through a first liquid guide pipe 1-5, and the carbonate solution recovery barrel 3 is communicated with the first liquid discharge valve 1-6 through a first liquid discharge pipe 1-7;
the microorganism mixed liquid supply and recovery system comprises a microorganism mixed liquid supply barrel 4 and a microorganism mixed liquid recovery barrel 5; the microorganism mixed liquor supply barrel 4 is communicated with the second liquid inlet valve 1-8 through a second liquid guide pipe 1-9, and the microorganism mixed liquor recovery barrel 5 is communicated with a second liquid discharge valve 1-10 through a second liquid discharge pipe 1-11;
the vacuum system is communicated with the first air valves 1-13;
the blower system is in communication with the second gas valves 1-16.
Preferably, the vacuum system comprises a vacuum pump 6, and the vacuum pump 6 is communicated with the first gas valve 1-13 through a first gas pipe 6-1.
Preferably, the blowing system comprises a hot air blower 7, and the hot air blower 7 is communicated with the second air valves 1-16 through second air pipes 1-17.
Preferably, rubber gaskets 1-3 are arranged between the box body 1 and the box body covers 1-14.
Preferably, bolts 1-15 are provided at both ends of the case cover 1-14 for fastening the rubber gasket 1-3.
Preferably, the bottom of the carbonate solution supply barrel 2 is provided with a third liquid discharge valve 2-1, and the third liquid discharge valve 2-1 is communicated with the first liquid inlet valve 1-4 through a first liquid guide pipe 1-5.
Preferably, the bottom of the microorganism mixed liquor supply barrel 4 is provided with a fourth liquid discharge valve 4-1, and the fourth liquid discharge valve 4-1 is communicated with the second liquid inlet valve 1-8 through a second liquid guide pipe 1-9.
The utility model provides a device for preparing a reinforced regeneration surface porous material, which comprises a processing box, a carbonate solution supply and recovery system, a microorganism mixed feed liquid supply and recovery system, a vacuum system and an air blowing system; wherein, handle regeneration surface porous material in the treatment box, supply and recovery system can realize the supply and the recovery of carbonate solution for carbonate solution supply and recovery system, and the mixed feed liquid supply of microorganism and recovery system can realize the supply and the recovery of the mixed feed liquid of microorganism, and vacuum system can handle the case and provide vacuum environment, and blower system can carry out the air-blowing to the treatment box in. The device provided by the utility model has simple structure and reasonable design of connection relation of all parts, can be used for soaking carbonate solution and microorganism mixed feed liquid, and realizes the reinforcement of the porous material on the regeneration surface by adopting double synergistic treatment; simultaneously the device provided by the utility model has the evacuation function, can make the mixed feed liquid of microorganism get into inside the material hole fast to regeneration porous material must be reinforceed to the high efficiency. The reinforced regeneration surface porous material prepared by the device provided by the utility model has low porosity and water absorption, high strength and good quality stability; the self-repairing aggregate is used for preparing concrete and has self-repairing performance.
Drawings
FIG. 1 is a schematic structural diagram of an apparatus for preparing a reinforced regenerated surface porous material according to the present invention; in the figure, 1 is a box body, 1-1 is a base, 1-2 is a bracket, 1-3 is a rubber gasket, 1-4 is a first liquid inlet valve, 1-5 is a first liquid guide pipe, 1-6 is a first liquid discharge valve, 1-7 is a first liquid discharge pipe, 1-8 is a second liquid inlet valve, 1-9 is a second liquid guide pipe, 1-10 is a second liquid discharge valve, 1-11 is a second liquid discharge pipe, 1-12 is an exhaust valve, 1-13 is a first air valve, 1-14 is a box body cover, 1-15 is a bolt, 1-16 is a second air valve, 6-1 is a first air pipe, and 1-17 is a second air pipe; 2 is a carbonate solution supply barrel, 2-1 is a third drain valve, and 3 is a carbonate solution recovery barrel; 4 is a microorganism mixed liquor supply barrel, 4-1 is a fourth drain valve, and 5 is a microorganism mixed liquor recovery barrel; 6 is a vacuum air extractor; and 7 is a hot air blower.
Biological preservation Instructions
Bacillus B6(Bacillus sp.B6) is preserved in China general microbiological culture Collection center (CGMCC) at 2016, 11 and 30 days, with the address of No. 3, West Lu No.1 of Kyowa, Chaoyang, Beijing, and the biological preservation number of CGMCC No. 13360;
bacillus H4(Bacillus sp.H4) was deposited in the general microbiological center of China Committee for culture Collection of microorganisms at 9.1.2014, with the address of No. 3 Siro-1 of Beijing, Chaoyang, and the microbiological institute of Chinese academy of sciences, and the biological preservation number is CGMCC No. 9629.
Detailed Description
The utility model provides a device for preparing a reinforced regeneration surface porous material, which comprises a processing box, a carbonate solution supply and recovery system, a microorganism mixed feed liquid supply and recovery system, a vacuum system and an air blowing system;
the treatment box comprises a box body 1, wherein a support 1-2 is arranged at the bottom inside the box body 1, a box body cover 1-14 is arranged at the top of the box body 1, and a first liquid inlet valve 1-4, a second liquid inlet valve 1-8, a first air valve 1-13 and an exhaust valve 1-12 are arranged on the box body cover 1-14; a base 1-1 is arranged at the bottom of the outer part of the box body 1, and a second air valve 1-16, a first drain valve 1-6 and a second drain valve 1-10 are arranged at the bottom of the box body 1;
the carbonate solution supply and recovery system comprises a carbonate solution supply barrel 2 and a carbonate solution recovery barrel 3; the carbonate solution supply barrel 2 is communicated with the first liquid inlet valve 1-4 through a first liquid guide pipe 1-5, and the carbonate solution recovery barrel 3 is communicated with the first liquid discharge valve 1-6 through a first liquid discharge pipe 1-7;
the microorganism mixed liquid supply and recovery system comprises a microorganism mixed liquid supply barrel 4 and a microorganism mixed liquid recovery barrel 5; the microorganism mixed liquor supply barrel 4 is communicated with the second liquid inlet valve 1-8 through a second liquid guide pipe 1-9, and the microorganism mixed liquor recovery barrel 5 is communicated with a second liquid discharge valve 1-10 through a second liquid discharge pipe 1-11;
the vacuum system is communicated with the first air valves 1-13;
the blower system is in communication with the second gas valves 1-16.
The device provided by the utility model comprises a processing box, wherein the processing box comprises a box body 1 used for processing the surface porous material (specifically comprising pretreatment, drying, soaking and microorganism strengthening treatment); the bottom inside the box body 1 is provided with a support 1-2 for placing a regeneration surface porous material to be treated; the top of the box body 1 is provided with box body covers 1-14, the box body covers 1-14 are provided with first liquid inlet valves 1-4, second liquid inlet valves 1-8, first air valves 1-13 and exhaust valves 1-12, and the box body covers 1-14 are used for realizing the sealing of the box body 1 and are convenient for arranging the valves; the bottom of the outer portion of the box body 1 is provided with a base 1-1, the bottom of the box body 1 is provided with a second air valve 1-16, a first liquid discharge valve 1-6 and a second liquid discharge valve 1-10, and the base 1-1 is used for supporting the box body 1 and facilitating arrangement of the valves.
As an embodiment of the present invention, a rubber gasket 1-3 is disposed between the box body 1 and the box body cover 1-14, specifically, the rubber gasket 1-3 is disposed along the opening circumference of the box body 1; the rubber gaskets 1-3 can enable the box body 1 to have better sealing performance.
As an embodiment of the present invention, bolts 1 to 15 for fastening the rubber gaskets 1 to 3 are provided at both ends of the case cover 1 to 14.
The device provided by the utility model comprises a carbonate solution supply and recovery system, which is used for providing carbonate solution into the box body 1 and recovering the carbonate solution after the pretreatment is finished; the carbonate solution supply and recovery system comprises a carbonate solution supply barrel 2 and a carbonate solution recovery barrel 3; the carbonate solution supply barrel 2 is communicated with the first liquid inlet valve 1-4 through a first liquid guide pipe 1-5, and the carbonate solution recovery barrel 3 is communicated with the first liquid discharge valve 1-6 through a first liquid discharge pipe 1-7.
As an embodiment of the present invention, the bottom of the carbonate solution supply tank 2 is provided with a third drain valve 2-1, and the third drain valve 2-1 is communicated with the first liquid inlet valve 1-4 through a first liquid guide tube 1-5.
The device provided by the utility model comprises a microorganism mixed feed liquid supply and recovery system, which is used for providing microorganism mixed feed liquid into the box body 1 and recovering the microorganism mixed feed liquid after the strengthening treatment is finished; the microorganism mixed liquid supply and recovery system comprises a microorganism mixed liquid supply barrel 4 and a microorganism mixed liquid recovery barrel 5; the microorganism mixed liquor supply barrel 4 is communicated with the second liquid inlet valve 1-8 through a second liquid guide pipe 1-9, and the microorganism mixed liquor recovery barrel 5 is communicated with the second liquid discharge valve 1-10 through a second liquid discharge pipe 1-11.
As an embodiment of the present invention, a fourth drain valve 4-1 is disposed at the bottom of the microorganism mixed liquid supply tank 4, and the fourth drain valve 4-1 is communicated with the second liquid inlet valve 1-8 via a second liquid guide tube 1-9.
The device provided by the utility model comprises a vacuum system which is used for providing a vacuum environment for the box body 1; the vacuum system is in communication with the first gas valves 1-13.
As an embodiment of the present invention, the vacuum system comprises a vacuum air pump 6, and the vacuum air pump 6 is communicated with the first air valves 1-13 through a first air pipe 6-1.
The device provided by the utility model comprises an air blowing system which is used for blowing air to the box body 1 for drying; the blower system is in communication with the second gas valves 1-16.
As an embodiment of the present invention, the air blowing system includes a hot air blower 7, and the hot air blower 7 is communicated with the second air valves 1 to 16 through second air pipes 1 to 17.
Fig. 1 is a schematic structural diagram of an apparatus for preparing a reinforced regenerated surface porous material according to the present invention, and a method for preparing a reinforced regenerated surface porous material is described below with reference to fig. 1.
Placing a porous material with a regenerated surface on a support 1-2 in a box body 1, covering a box body cover 1-14, screwing bolts 1-15, closing a first liquid inlet valve 1-4, a first liquid discharge valve 1-6, a second liquid inlet valve 1-8, a second liquid discharge valve 1-10, an exhaust valve 1-12 and a second air valve 1-16, opening a first air valve 1-13, opening a vacuum air pump 6, vacuumizing to-0.05 to-0.1 MPa, closing a first air valve 1-13, opening a first liquid inlet valve 1-4 and a third liquid discharge valve 2-1, injecting a carbonate solution 2 in a carbonate solution supply barrel into the box body 1, closing the first liquid inlet valve 1-4, opening the first air valve 1-13, opening the vacuum air pump 6, vacuumizing to-0.05 to-0.1 MPa, closing the first air valves 1-13 and the vacuum air pump 6, and soaking the regenerated surface porous material in carbonate solution for pretreatment;
after the pretreatment is finished, opening exhaust valves 1-12, opening first liquid discharge valves 1-6, and discharging the redundant carbonate solution in the box body 1 to a carbonate solution recovery barrel 3;
after the carbonate solution is drained, removing the cover 1-14 of the box body, opening the second air valve 1-16, opening the hot air blower 7, blowing air into the box body 1 through the second air valve 1-16, and drying;
after drying, covering a box cover 1-14, screwing down screws 1-15 for sealing, keeping a first liquid inlet valve 1-4, a first liquid discharge valve 1-6, a second liquid inlet valve 1-8, a second liquid discharge valve 1-10, an exhaust valve 1-12 and a second air valve 1-16 closed, opening a first air valve 1-13, opening a vacuum air extractor 6, vacuumizing to-0.05 to-0.1 MPa, closing the first air valve 1-13 and the vacuum air extractor 6, opening a second liquid inlet valve 1-8 and a fourth liquid discharge valve 4-1, injecting microorganism mixed liquid in a microorganism supply barrel 4 into the box 1, closing the valves, the second liquid inlet valve 1-8 and the fourth liquid discharge valve 4-1, opening the first air valve 1-13, opening the vacuum air extractor 6, vacuumizing to-0.05 to-0.1 MPa, closing the first air valve 1-13, closing the vacuum air pump 6, and soaking the dried pretreatment material in the microorganism mixed liquor;
after soaking, opening the exhaust valve 1-12 and the second drain valve 1-10, draining redundant microorganism mixed liquor in the box body 1 into the microorganism mixed liquor recovery barrel 5, closing the second drain valve 1-10, performing strengthening treatment under a standing condition, and then discharging.
The utility model discloses it is right regeneration surface porous material's kind and source do not have special limitation, adopt the regeneration surface porous material of the familiar kind of technical personnel in the field and source can the utility model discloses in, regeneration surface porous material is preferred to be made through the breakage by at least one in abandonment concrete, abandonment brick, abandonment ceramic tile and the abandonment mortar, regeneration surface porous material's particle diameter is preferred 1 ~ 50 mm.
In the utility model discloses, carbonate in the carbonate solution preferably includes sodium carbonate and/or potassium carbonate, the concentration of carbonate in the carbonate solution is preferably 0.1 ~ 4.5mol/L, more preferably 0.5 ~ 2 mol/L. The utility model discloses it is right the quantity of carbonate solution does not have special restriction, can be with regeneration surface porous material complete submergence can.
In the present invention, the pretreatment is preferably carried out under a vacuum degree of-0.05 to-0.1 MPa, more preferably-0.08 to-0.09 MPa; the temperature of the pretreatment is preferably 15-35 ℃, more preferably 20-25 ℃, and in the embodiment of the invention, the pretreatment is specifically carried out at room temperature; the time for the pretreatment is preferably 10-120 min, and more preferably 30-50 min. In the utility model discloses in, among the pretreatment process, carbonate solution gets into regeneration surface porous material's the hole, to the regeneration surface porous material who contains soluble calcium salt, can react with the calcium ion in its hole and generate calcium carbonate crystal and grow up, in addition with the calcium ion (being the calcium ion in the microbial cement substrate) reaction of follow-up supplementary and generate calcium carbonate to block up the hole and reduce the water absorption and hole liquid basicity, be favorable to full play microorganism mineralize mineralization activity in the follow-up processing step; for the regenerated surface porous material which can not release calcium ions, the regenerated surface porous material is soaked in a carbonate solution in advance, and a carbonate ion environment can be formed in pores of the regenerated surface porous material and reacts with subsequently supplemented calcium ions to generate calcium carbonate.
The utility model discloses in, the temperature of stoving is preferred 45 ~ 110 ℃, and more preferred is 75 ~ 100 ℃; the time is preferably 10 to 600min, and more preferably 30 to 100 min. In the utility model discloses in, the stoving process can promote carbonate and calcium hydroxide reaction, can also realize the drying of preliminary treatment material simultaneously.
The utility model mixes the microorganism, the microorganism cementing substrate and the oxygen releasing agent to obtain the microorganism mixed feed liquid. In the present invention, the microorganism preferably comprises one or more of bacillus pseudodurans DSM8715, bacillus B6 and bacillus H4. The utility model discloses preferably decompose the carbon source through the microorganism of above-mentioned kind to release carbon dioxide or carbonate ion. The utility model has no special limit to the source of the Bacillus pseudodurans DSM8715(Bacillus pseudodurans), in the utility model, the Bacillus pseudodurans DSM8715 is given and obtained by the Microlab Henk Jonkers of Dutch Delv Tech university; the Bacillus B6(Bacillus sp.B6) of the utility model is preserved in China general microbiological culture Collection center (CGMCC) in 2016 (11 months and 30 days), and the address is No. 3 of Xilu No.1 of Beijing university facing Yang district, China academy of sciences microbiological research institute, and the biological preservation number is CGMCC No. 13360; bacillus H4(Bacillus sp.h4), is preserved at china general microbiological culture collection center in 2014 9, 1, with the address being No. 3, china academy of sciences microbiological research institute, and the biological preservation number is CGMCC No. 9629.
The present invention preferably uses a microbial culture medium to culture the microorganisms to provide sufficient microorganisms for enhanced treatment. In the present invention, the microorganism culture medium preferably includes a beef extract culture medium and a 3-cyclohexylamino-1-propanesulfonic acid culture medium. In the utility model, the beef extract culture medium preferably uses water as a solvent, and preferably comprises 2.5-6.0 g/L beef extract and 8-20 g/L peptone; specifically, beef extract, peptone and water are mixed and then sterilized to obtain a beef extract culture medium; the temperature of the sterilization is preferably 121 ℃, and the time is preferably 15 min. In the utility model, the 3-cyclohexylamino-1-propanesulfonic acid culture medium preferably uses water as a solvent, and preferably comprises 120-170 g/L3-cyclohexylamino-1-propanesulfonic acid; mixing 3-cyclohexylamino-1-propanesulfonic acid with water, adjusting the pH value of the system to 10, and then sterilizing to obtain a 3-cyclohexylamino-1-propanesulfonic acid culture medium; the reagent used for adjusting the pH value is preferably sodium hydroxide solution with the concentration of 6mol/L, the temperature of the sterilization is preferably 121 ℃, and the time is preferably 15 min. In the utility model, the volume ratio of the beef extract culture medium to the 3-cyclohexylamino-1-propanesulfonic acid culture medium is preferably (70-95): (5-30), more preferably 85: 15. in the present invention, the culture conditions of the microorganism are preferably: performing shaking culture at 120-180 rpm, wherein the culture temperature is preferably 25-35 ℃, and more preferably 30 ℃; the culture time is preferably 8-48 h, and more preferably 24 h.
In the present invention, the microbial gelled substrate is obtained by mixing a carbon source, a nitrogen source, a calcium source and water. In the present invention, the carbon source preferably includes one or more of soluble lactate, soluble carbohydrate and soluble acetate, more preferably calcium acetate; the nitrogen source preferably comprises one or more of urea, sodium glutamate, peptone, ammonium salt, nitrate and hydroxylamine, and more preferably urea or calcium nitrate; the calcium source preferably comprises one or more of calcium bicarbonate, calcium chloride, calcium nitrate and calcium acetate, and more preferably at least one of calcium chloride, calcium nitrate and calcium acetate; the mass ratio of the carbon source, the nitrogen source, the calcium source and the water in the microbial cementing substrate is preferably (0.5-50): (0.5-60): (1-100): 100. In the present invention, the calcium acetate can be used as both a carbon source and a calcium source, and the calcium nitrate can be used as both a nitrogen source and a calcium source; the utility model discloses in, it is concrete, the microorganism glues the bottom can be obtained by calcium acetate, calcium nitrate and water mixture, and the mass ratio of calcium acetate, calcium nitrate and water is preferred (10 ~ 20) in the microorganism glues the bottom this moment: (10-20): 100, more preferably 15: 15: 100, respectively; the microbial caking substrate can be obtained by mixing calcium acetate, urea, calcium chloride and water, wherein the mass ratio of the calcium acetate, the urea, the calcium chloride and the water in the microbial caking substrate is preferably (4-6): (4-6): (8-12): 100, more preferably 5: 5: 10: 100. in the utility model, the carbon source is used as nutrient substances of microorganisms, carbon dioxide is discharged after decomposition, and the carbon source is dissolved in water to generate carbonate ions which react with calcium ions to generate calcium carbonate precipitates; the nitrogen source is used as nutrient substances of the microorganism and can provide energy for the microorganism; the calcium source may provide calcium ions for the formation of calcium carbonate precipitates.
In the present invention, the oxygen release agent preferably includes one or more of calcium peroxide, sodium peroxide sulfate, sodium percarbonate and magnesium peroxide. In the utility model, the oxygen releasing agent releases oxygen in the pores of the regenerated surface porous material, which is beneficial to promoting the activity of microorganism, and if calcium peroxide is used as the oxygen releasing agent, the oxygen releasing agent can be used as a calcium source to supplement calcium ions after being decomposed.
In the present invention, the concentration of the microorganism in the microorganism-containing mixed feed liquid is preferably 1 × 105～1×1010cfu/L, more preferably 1X 108～1×109cfu/L; the content of the oxygen releasing agent is preferably 1 to 20g/L, more preferably 5 to 10 g/L.
After obtaining dry pretreatment materials and the mixed feed liquid of microorganism, the utility model discloses will dry pretreatment materials soak under the vacuum condition in the mixed feed liquid of microorganism, later with the gained soak material strengthen the processing under the condition of stewing, obtain the surface porous material of strengthening regeneration. In the utility model, the soaking is preferably carried out under the condition that the vacuum degree is-0.05 to-0.1 MPa, and more preferably-0.08 to-0.1 MPa; the soaking temperature is preferably 15-50 ℃, more preferably 20-35 ℃, and in the embodiment of the utility model, the soaking is specifically carried out at room temperature; the soaking time is preferably 10-600 min, and more preferably 20-150 min.
After soaking the completion, the utility model discloses preferably carry out solid-liquid separation with the system to get rid of unnecessary microorganism and mix the feed liquid, obtain and soak the material, later will soak the material and strengthen the processing under the condition of stewing, obtain and strengthen regeneration surface porous material. In the present invention, the temperature of the strengthening treatment is preferably 15 to 50 ℃, more preferably 20 to 35 ℃, and in the embodiment of the present invention, the strengthening treatment is specifically performed at room temperature; the strengthening treatment time is preferably 1 to 10 hours, and more preferably 7 to 9 hours. In the utility model, in the strengthening treatment process, the calcium ions in the soaking material are mineralized to generate calcium carbonate crystal sediment by utilizing the mineralization of microorganisms, so as to further block the pores; and the oxygen releasing agent releases oxygen in the pores to promote the activity of microorganisms.
The reinforced regeneration surface porous material prepared by the device provided by the utility model can be directly used after being discharged and can also be stockpiled for standby; in the process of stockpiling and standby, carbon dioxide in the environment reacts with calcium ions remained in the reinforced regeneration surface porous material to generate calcium carbonate, and meanwhile, air in the environment continuously provides oxygen for microorganisms, so that aerobic microorganisms can continuously carry out metabolism, calcium carbonate is further generated, and the product performance is favorably improved. Adopt the utility model provides a device preparation reinforce regeneration surface porous material is multi-functional aggregate, has selfreparing medium function concurrently, can be used for preparing regeneration aggregate selfreparing cement-based material.
The utility model discloses in, according to the part by mass, the preparation raw materials of regeneration aggregate selfreparing cement-based material is preferred to include: according to the technical scheme, the reinforced regeneration surface porous material comprises 20-80 parts of reinforced regeneration surface porous material, 20-70 parts of cement, 6-35 parts of water, 0.1-0.3 part of water reducing agent, 2-10 parts of limestone powder, 3-10 parts of fly ash, 3-11 parts of mineral powder, 0.1-1.5 parts of hydroxypropyl methyl cellulose, 0.1-1.5 parts of microcrystalline cellulose and 0.05-2 parts of metakaolin; more preferably, it comprises: 30-40 parts of a reinforced regeneration surface porous material, 30-40 parts of cement, 12-16 parts of water, 0.15-0.18 part of a water reducing agent, 5-6 parts of limestone powder, 5 parts of fly ash, 5.05-6.22 parts of mineral powder, 0.2-0.3 part of hydroxypropyl methyl cellulose, 0.3-0.4 part of microcrystalline cellulose and 1-1.2 parts of metakaolin.
In the present invention, before the reinforced regenerated surface porous material is used, it is preferable that the spray concentration of the reinforced regenerated surface porous material for stock is 1 × 109The concentration of the microbial fluid is 1 × 109Soaking in cfu/L microbial solution; superior foodAnd optionally, spraying 2-30 mL of microbial liquid per minute for every 1kg of the reinforced regeneration surface porous material, spraying for 3-20 min, or soaking in the microbial liquid for 3-20 min. In the present invention, the selectable types of microorganisms in the microorganism liquid are preferably the same as the selectable types of microorganisms in the microorganism mixed liquid, and the details are not repeated herein. The utility model discloses a microorganism liquid is handled the reserve intensive regeneration surface porous material of stockpiling, can make to have more microorganisms in the hole of intensive regeneration surface porous material, prepare into cement-based material with it after, during the cement-based material fracture, the microorganism is moved about once more, makes cement-based material have the selfreparing function.
In the utility model, the cement is preferably one or more of Portland cement, sulphoaluminate cement and aluminate cement; the particle size of the limestone powder is preferably 30 nm-20 mu m; the water reducing agent is preferably a polycarboxylic acid water reducing agent; the particle size of the fly ash is preferably 1-100 mu m; the particle size of the mineral powder is preferably 1-250 mu m; the particle size of the hydroxypropyl methyl cellulose is preferably 1-180 mu m, the content of hydroxypropyl in the hydroxypropyl methyl cellulose is preferably 4.0-12.0%, and the viscosity of the hydroxypropyl methyl cellulose is preferably 100-200000 mPa.s; the grain size of the microcrystalline cellulose is preferably 1-180 mu m; the particle size of the metakaolin is preferably 0.5-10 μm.
The utility model has no special limitation on the preparation method of the recycled aggregate self-repairing cement-based material, and can be prepared by adopting a method well known by the technical personnel in the field. The utility model discloses in, the preparation method of regeneration aggregate selfreparing cement-based material preferably includes following step:
mixing the reinforced regeneration surface porous material with limestone powder, cement, fly ash and mineral powder in a stirrer in proportion, and stirring for 30 s-5 min; adding part of water into a stirrer, and stirring for 1.5-2.5 min; adding the water reducing agent and the residual water into a stirrer, and stirring for 2.5-3.5 min; adding hydroxypropyl methyl cellulose, microcrystalline cellulose and metakaolin into a stirrer, and stirring for 3.5-4.5 min to obtain a recycled aggregate self-repairing cement-based material; wherein the part of water preferably accounts for 75-85% of the total amount of water.
The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Weighing 30g of beef extract and 100g of peptone, weighing 8.5L of distilled water, mixing uniformly, sterilizing at 121 ℃ for 15min, and cooling to room temperature (25 ℃) to obtain a beef extract culture medium; weighing 223g of 3-cyclohexylamino-1-propanesulfonic acid, weighing 1.3L of distilled water, uniformly mixing, adjusting the pH value to 10 by using a 6mol/L sodium hydroxide solution, fixing the volume to 1.5L, sterilizing at 121 ℃ for 15min, and then cooling to room temperature to prepare a 3-cyclohexylamino-1-propanesulfonic acid culture medium; mixing the beef extract culture medium and a 3-cyclohexylamino-1-propanesulfonic acid culture medium according to a volume ratio of 85: 15, mixing to obtain a microbial culture medium; inoculating bacillus H4 into the microbial culture medium, performing shake culture at 30 ℃ for 24H at the oscillation frequency of 150rpm, and centrifuging and washing for 3 times after the culture is finished to obtain a microbial precipitate.
Weighing 15kg of calcium acetate, 15kg of calcium nitrate and 100kg of water, and uniformly mixing to obtain the microbial gelled substrate.
Crushing the waste mortar, screening to obtain waste mortar particles with the particle size of 1-5 mm, placing the waste mortar particles in a box body 1, covering a box body cover 1-14, sealing, and vacuumizing the box body 1 to-0.09 MPa.
Placing a sodium carbonate solution with the concentration of 1mol/L into a carbonate solution supply barrel 2, pumping the sodium carbonate solution into a box body 1, and completely immersing the waste mortar particles; vacuumizing the box body 1 to-0.09 MPa again, soaking for 30min at room temperature to obtain a pretreatment material, and discharging the residual sodium carbonate solution in the box body 1 into a carbonate solution recovery barrel 3.
And removing the box body covers 1-14, starting the hot air blower 7, and drying the pretreatment material for 50min at the temperature of 100 ℃ to obtain the dry pretreatment material.
Covering a box body cover 1-14, vacuumizing the box body 1 to-0.09 MPa, and mixing the microbial precipitate, the microbial cementing substrate and calcium peroxide to obtain a microbial mixed feed liquid, wherein the concentration of microbes in the microbial mixed feed liquid is 1 multiplied by 108cfu/L, wherein the concentration of calcium peroxide is 5g/L, the microorganism mixed liquid is filled into a microorganism mixed liquid supply barrel 4, and the microorganism mixed liquid is pumped into a box body 1 until the dry pretreatment material is completely immersed; and vacuumizing the box body 1 to-0.09 MPa again, soaking for 30min at room temperature, discharging the residual microorganism mixed liquor in the box body 1 into a microorganism mixed liquor recovery barrel 5, placing the soaked waste mortar particles in the box body 1 for 1h for strengthening treatment, and discharging to obtain strengthened waste mortar particles.
Example 2
The reinforced waste mortar particles prepared in the embodiment 1 are used as raw materials to further prepare the recycled aggregate self-repairing mortar, and the method comprises the following steps:
according to the mass percentage, the preparation raw materials of the recycled aggregate self-repairing mortar comprise: 40% of reinforced waste mortar particles, 30% of Portland cement, 12% of water, 0.18% of water reducing agent, 5% of limestone powder, 5% of fly ash, 6.22% of mineral powder, 0.3% of hydroxypropyl methyl cellulose, 0.3% of microcrystalline cellulose and 1% of metakaolin; wherein the particle size of the limestone powder is 30 nm-20 μm, the water reducing agent is a polycarboxylic acid water reducing agent, and the particle size of the fly ash is 1-100 μm; the particle size of the mineral powder is 1-250 mu m; the particle size of the hydroxypropyl methyl cellulose is 1-180 mu m, the content of hydroxypropyl in the hydroxypropyl methyl cellulose is 7.0-12.0%, and the viscosity of the hydroxypropyl methyl cellulose is 200000 mPa.s; the grain size of the microcrystalline cellulose is 1-180 mu m; the particle size of the metakaolin is 0.5-10 mu m;
weighing the raw materials of the components according to the proportion, placing the reinforced waste mortar particles, the limestone powder, the Portland cement, the fly ash and the mineral powder in a stirrer, and stirring and mixing for 3 min; adding part of water (80% of the total amount of water) into a stirrer, and stirring and mixing for 2 min; adding the water reducing agent and the residual water into a stirrer, and stirring and mixing for 3 min; and adding hydroxypropyl methyl cellulose, microcrystalline cellulose and metakaolin into a stirrer, and stirring and mixing for 4min to obtain the recycled aggregate self-repairing mortar.
Comparative example 1
The particle diameter is 1 ~ 5 mm's abandonment mortar particle, does not pass promptly the utility model provides a method carries out the abandonment mortar particle of handling.
Comparative example 2
The waste mortar particles in the comparative example 1 are used as raw materials, and the regenerated mortar is further prepared according to the method in the example 2, namely, the 'reinforced waste mortar particles' in the example 2 are replaced by the 'waste mortar particles with the particle size of 1-5 mm'.
And (3) performance testing:
the pH values of the pore liquids of the waste mortar particles in comparative example 1 and the mortar particles (i.e., the pretreatment material) obtained after being soaked in the carbonate solution in example 1 were tested;
the waste mortar particles in comparative example 1 and the reinforced waste mortar particles prepared in example 1 were tested for water absorption;
molding the recycled aggregate self-repairing mortar prepared in the example 2 to prepare a plurality of cubic test blocks with the size of 100mm multiplied by 100mm, curing for 28 days under the conditions that the relative humidity is more than or equal to 95% and the temperature is 20 +/-3 ℃, and measuring the compressive strength of part of the test blocks according to GB/T50081 and 2019 concrete physical and mechanical property test method standard; preloading the residual test blocks, applying pressure of 80% of the measured compressive strength value, keeping constant pressure for 5min to enable the test blocks to generate cracks, continuously measuring the residual compressive strength of half of the preloaded test blocks according to GB/T50081 plus-material 2019 'Standard of test method for physical and mechanical Properties of concrete', and measuring the compressive strength of the other half of the preloaded test blocks after self-repairing and maintaining for 28d under the conditions that the relative humidity is more than or equal to 95% and the temperature is 20 +/-3 ℃; the regenerated mortar prepared in comparative example 2 was used to prepare test blocks and to conduct performance tests in accordance with the above-described method.
The results of the above performance tests are specifically set forth in Table 1.
TABLE 1 results of performance testing of the materials of examples 1-2 and comparative examples 1-2
| Test items | Example 1 | Comparative example 1 |
| pH value of mortar particle pore liquid | 8.2 | 12.3 |
| Water absorption (%) of mortar particles | 3.8 | 7.4 |
| Test items | Example 2 | Comparative example 2 |
| Compressive strength (MPa) | 36.51 | 25.42 |
| Residual compressive Strength after preloading (MPa) | 23.76 | 16.63 |
| Self-repairing post-curing compressive strength (MPa) | 30.18 | 19.79 |
As can be seen from table 1, adopt the utility model provides a during abandonment mortar granule is reinforceed in device preparation, after carbonate soaks the preliminary treatment, the pH value of mortar granule pore liquid reduces to some extent, simultaneously through the microorganism coprocessing back, the water absorption rate greatly reduced of mortar granule, and the regeneration mortar compressive strength who makes risees, and has good selfreparing function.
Example 3
Weighing 30g of beef extract and 100g of peptone, weighing 8.5L of distilled water, mixing uniformly, sterilizing at 121 ℃ for 15min, and cooling to room temperature (25 ℃) to obtain a beef extract culture medium; weighing 223g of 3-cyclohexylamino-1-propanesulfonic acid, weighing 1.3L of distilled water, uniformly mixing, adjusting the pH value to 10 by using a 6mol/L sodium hydroxide solution, fixing the volume to 1.5L, sterilizing at 121 ℃ for 15min, and then cooling to room temperature to prepare a 3-cyclohexylamino-1-propanesulfonic acid culture medium; mixing the beef extract culture medium and a 3-cyclohexylamino-1-propanesulfonic acid culture medium according to a volume ratio of 85: 15, mixing to obtain a microbial culture medium; inoculating bacillus B6 and bacillus pseudofirmus DSM8715 into the microorganism culture medium, performing shake culture at 30 ℃ for 24h at the oscillation frequency of 150rpm, centrifuging and washing for 3 times after the culture is finished to obtain a microorganism precipitate.
Weighing 5kg of calcium acetate, 5kg of urea, 10kg of calcium chloride and 100kg of water, and uniformly mixing to obtain the microbial gelled substrate.
Crushing waste concrete, screening to obtain waste concrete particles with the particle size of 1-25 mm, placing the waste concrete particles in a box body 1, covering a box body cover 1-14, sealing, and vacuumizing the box body 1 to-0.08 MPa.
Placing a sodium carbonate solution with the concentration of 1.5mol/L into a carbonate solution supply barrel 2, pumping the sodium carbonate solution into a box body 1, and completely immersing the waste concrete particles; vacuumizing the box body 1 to-0.08 MPa again, soaking for 40min at room temperature to obtain a pretreatment material, and discharging the residual sodium carbonate solution in the box body 1 into a carbonate solution recovery barrel 3.
And removing the box body covers 1-14, starting the hot air blower 7, and drying the pretreatment material for 60min at the temperature of 90 ℃ to obtain the dry pretreatment material.
Covering a box body cover 1-14, vacuumizing the box body 1 to-0.08 MPa, and mixing the microbial precipitate, the microbial cementing substrate and sodium percarbonate to obtain a microbial mixed feed liquid, wherein the concentration of microbes in the microbial mixed feed liquid is 1 x 109cfu/L, wherein the concentration of the sodium carbonate peroxide is 7g/L, the microorganism mixed liquid is filled into a microorganism mixed liquid supply barrel 4, and the microorganism mixed liquid is pumped into a box body 1 until the dry pretreatment material is completely immersed; vacuumizing the box body 1 to-0.08 MPa again, soaking for 50min at room temperature, discharging the residual microorganism mixed liquor in the box body 1 into a microorganism mixed liquor recovery barrel 5, placing the soaked waste concrete particles in the box body 1 for 10h for strengthening treatment, discharging to obtain strengthened waste concrete particles, and stacking for later use.
Example 4
The reinforced waste concrete particles prepared in the embodiment 3 are used as raw materials to further prepare the recycled aggregate self-repairing concrete, and the method comprises the following steps: placing the reinforced waste concrete particles prepared in the example 3 in a box body 1, covering a box body cover 1-14, sealing, and vacuumizing the box body 1 to-0.08 MPa; the microbial pellet from example 3 was diluted to 1X 109cfu/L to obtain a microbial liquid; and (2) filling the microorganism liquid into a microorganism mixed liquid supply barrel 4, pumping the microorganism liquid into the box body 1 until the reinforced waste concrete particles are completely immersed, vacuumizing the box body 1 to-0.08 MPa again, soaking for 20min at room temperature, discharging the residual microorganism liquid in the box body 1 into a microorganism mixed liquid recovery barrel 5, and discharging the soaked reinforced waste concrete particles for preparing the recycled aggregate self-repairing concrete.
According to the mass percentage, the preparation raw materials of the recycled aggregate self-repairing concrete comprise: 30% of soaked reinforced waste concrete particles, 35% of Portland cement, 5% of sulphoaluminate cement, 16% of water, 0.15% of water reducing agent, 6% of limestone powder, 1% of fly ash, 5.05% of mineral powder, 0.2% of hydroxypropyl methyl cellulose, 0.4% of microcrystalline cellulose and 1.2% of metakaolin; wherein the particle size of the limestone powder is 30 nm-20 μm, the water reducing agent is a polycarboxylic acid water reducing agent, and the particle size of the fly ash is 1-100 μm; the particle size of the mineral powder is 1-250 mu m; the particle size of the hydroxypropyl methyl cellulose is 1-180 mu m, the content of hydroxypropyl in the hydroxypropyl methyl cellulose is 7.0-12.0%, and the viscosity of the hydroxypropyl methyl cellulose is 100000 mPa.s; the grain size of the microcrystalline cellulose is 1-180 mu m; the particle size of the metakaolin is 0.5-10 mu m;
weighing the raw materials of the components according to the proportion, placing the soaked reinforced waste concrete particles, limestone powder, Portland cement, sulphoaluminate cement, fly ash and mineral powder in a stirrer, and stirring and mixing for 3 min; adding part of water (80% of the total amount of water) into a stirrer, and stirring and mixing for 2 min; adding the water reducing agent and the residual water into a stirrer, and stirring and mixing for 3 min; and adding hydroxypropyl methyl cellulose, microcrystalline cellulose and metakaolin into a stirrer, and stirring and mixing for 4min to obtain the recycled aggregate self-repairing concrete.
Comparative example 3
The particle diameter is 1 ~ 25 mm's abandonment concrete granule, does not pass promptly the utility model provides a method carries out the abandonment concrete granule of handling.
Comparative example 4
The waste concrete particles in comparative example 3 were used as a raw material, and the recycled concrete was further prepared by the method of example 4, that is, the "reinforced waste concrete particles after soaking" in example 4 was replaced with "waste concrete particles having a particle size of 1 to 25 mm".
And (3) performance testing:
the pH values of the pore liquid of the waste concrete particles in comparative example 3 and the concrete particles (i.e., pretreated material) obtained after being soaked in the carbonate solution in example 3 were tested;
the waste concrete particles of comparative example 3 and the reinforced waste concrete particles prepared in example 3 were tested for water absorption;
molding the recycled aggregate self-repairing concrete prepared in the example 4 to prepare a plurality of cubic test blocks with the size of 100mm multiplied by 100mm, curing for 28 days under the conditions that the relative humidity is more than or equal to 95% and the temperature is 20 +/-3 ℃, and measuring the compressive strength of part of the test blocks according to GB/T50081-2019 concrete physical and mechanical property test method standard; preloading the residual test blocks, applying pressure of 80% of the measured compressive strength value, keeping constant pressure for 5min to enable the test blocks to generate cracks, continuously measuring the residual compressive strength of half of the preloaded test blocks according to GB/T50081 plus-material 2019 'Standard of test method for physical and mechanical Properties of concrete', and measuring the compressive strength of the other half of the preloaded test blocks after self-repairing and maintaining for 28d under the conditions that the relative humidity is more than or equal to 95% and the temperature is 20 +/-3 ℃; the recycled concrete prepared in comparative example 4 was used to prepare test blocks and to conduct performance tests in accordance with the above-described method.
The results of the above performance tests are specifically set forth in Table 2.
Table 2 Performance test results of the materials of examples 3 to 4 and the materials of comparative examples 3 to 4
According to table 2, adopt the utility model provides a during abandonment concrete granule is reinforceed in device preparation, after carbonate soaks the preliminary treatment, the pH value of concrete granule pore liquid reduces, simultaneously through the microorganism coprocessing back, the water absorption rate greatly reduced of concrete granule, and the recycled concrete compressive strength who makes risees, and has good selfreparing function.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The device for preparing the reinforced regeneration surface porous material is characterized by comprising a treatment box, a carbonate solution supply and recovery system, a microorganism mixed feed liquid supply and recovery system, a vacuum system and an air blowing system;
the treatment box comprises a box body (1), a support (1-2) is arranged at the bottom inside the box body (1), a box body cover (1-14) is arranged at the top of the box body (1), and a first liquid inlet valve (1-4), a second liquid inlet valve (1-8), a first air valve (1-13) and an exhaust valve (1-12) are arranged on the box body cover (1-14); a base (1-1) is arranged at the bottom of the outer part of the box body (1), and a second air valve (1-16), a first drain valve (1-6) and a second drain valve (1-10) are arranged at the bottom of the box body (1);
the carbonate solution supply and recovery system comprises a carbonate solution supply barrel (2) and a carbonate solution recovery barrel (3); the carbonate solution supply barrel (2) is communicated with the first liquid inlet valve (1-4) through a first liquid guide pipe (1-5), and the carbonate solution recovery barrel (3) is communicated with the first liquid discharge valve (1-6) through a first liquid discharge pipe (1-7);
the microorganism mixed liquid supply and recovery system comprises a microorganism mixed liquid supply barrel (4) and a microorganism mixed liquid recovery barrel (5); the microorganism mixed liquor supply barrel (4) is communicated with the second liquid inlet valve (1-8) through a second liquid guide pipe (1-9), and the microorganism mixed liquor recovery barrel (5) is communicated with the second liquid discharge valve (1-10) through a second liquid discharge pipe (1-11);
the vacuum system is communicated with the first air valve (1-13);
the blower system is communicated with the second air valves (1-16).
2. Device according to claim 1, characterized in that the vacuum system comprises a vacuum pump (6), the vacuum pump (6) being in communication with the first gas valve (1-13) via a first gas pipe (6-1).
3. Device according to claim 1, characterized in that the blowing system comprises a hot blower (7), which hot blower (7) communicates with the second gas valve (1-16) via a second gas pipe (1-17).
4. Device according to claim 1, characterized in that a rubber gasket (1-3) is arranged between the tank (1) and the tank cover (1-14).
5. Device according to claim 4, characterized in that the box cover (1-14) is provided at both ends with bolts (1-15) for fastening the rubber gaskets (1-3).
6. The apparatus according to claim 1, characterized in that the bottom of the carbonate solution supply tank (2) is provided with a third drain valve (2-1), which third drain valve (2-1) is in communication with the first inlet valve (1-4) via a first liquid conduit (1-5).
7. The apparatus according to claim 1, wherein the bottom of the microorganism mixed liquor supply tank (4) is provided with a fourth drain valve (4-1), and the fourth drain valve (4-1) is communicated with the second liquid inlet valve (1-8) through a second liquid guide pipe (1-9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022576883.4U CN213771840U (en) | 2020-11-09 | 2020-11-09 | Device for preparing reinforced regeneration surface porous material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022576883.4U CN213771840U (en) | 2020-11-09 | 2020-11-09 | Device for preparing reinforced regeneration surface porous material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213771840U true CN213771840U (en) | 2021-07-23 |
Family
ID=76915921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022576883.4U Active CN213771840U (en) | 2020-11-09 | 2020-11-09 | Device for preparing reinforced regeneration surface porous material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213771840U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112225480A (en) * | 2020-11-09 | 2021-01-15 | 深圳信息职业技术学院 | Reinforced regeneration surface porous material, preparation method and application thereof, and device for preparing reinforced regeneration surface porous material |
| CN113683330A (en) * | 2021-08-04 | 2021-11-23 | 深圳大学 | Preparation method and preparation system of reinforced recycled aggregate |
-
2020
- 2020-11-09 CN CN202022576883.4U patent/CN213771840U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112225480A (en) * | 2020-11-09 | 2021-01-15 | 深圳信息职业技术学院 | Reinforced regeneration surface porous material, preparation method and application thereof, and device for preparing reinforced regeneration surface porous material |
| CN113683330A (en) * | 2021-08-04 | 2021-11-23 | 深圳大学 | Preparation method and preparation system of reinforced recycled aggregate |
| CN113683330B (en) * | 2021-08-04 | 2022-06-10 | 深圳大学 | Preparation method and preparation system of reinforced recycled aggregate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20240270649A1 (en) | Fly ash-based foam geopolymer, preparation method therefor, and use thereof | |
| CN213771840U (en) | Device for preparing reinforced regeneration surface porous material | |
| CN112125550B (en) | Method for reinforcing recycled aggregate of waste concrete through open carbonization | |
| CN112225480B (en) | Reinforced regenerated surface porous material, preparation method and application thereof, and device for preparing reinforced regenerated surface porous material | |
| CN114163176B (en) | Sintering-free raw material ball filler for rural sewage treatment system, and preparation and maintenance methods thereof | |
| CN110871050A (en) | Application of lanthanum modified ecological filler adsorbent and preparation method thereof | |
| CN112225481A (en) | Self-healing concrete and preparation method thereof | |
| CN110813979A (en) | Method for realizing harmless treatment of cyanide tailings by utilizing microbial technology | |
| CN113307527B (en) | Preparation method of chitosan immobilized microorganism urease in-situ reinforced recycled aggregate | |
| CN111393060A (en) | Cement-based material carbonization internal curing agent and preparation and use methods thereof | |
| CN114164202A (en) | Multifunctional carrier with microbial activity and preparation method thereof | |
| CN117125915A (en) | Regenerated coarse aggregate modification method based on urease mineralization deposition | |
| CN213913133U (en) | Regenerated gel composite particle and carbon dioxide-containing industrial waste gas co-processing device | |
| CN114950119B (en) | Method for decarbonizing industrial flue gas and preparing steel slag concrete cooperatively and obtained product | |
| CN115626790B (en) | Biological material for rapidly repairing concrete microcracks and preparation method thereof | |
| CN116903302A (en) | Gold tailing baking-free ceramsite and preparation method thereof | |
| CN110467381A (en) | A kind of method that sludge collaboration processing mixing plant waste prepares building material | |
| CN114014689B (en) | Low-temperature pore-forming water-storage ceramsite prepared from solid waste and preparation method of ceramsite | |
| CN112237836A (en) | Synergistic treatment method and device for regenerated gel composite particles and carbon dioxide-containing industrial waste gas | |
| CN112047654B (en) | Method for reinforcing recycled fine aggregate by using bacillus pasteurii DSM33 | |
| CN113929397A (en) | High-impermeability freeze-thaw-resistance microbial concrete and preparation method thereof | |
| CN112408732A (en) | Sludge curing agent and application thereof | |
| CN116217112B (en) | Inorganic solid waste-microorganism composite curing agent and preparation method and application thereof | |
| CN113860793B (en) | Bacteria-based harmless strengthening treatment method for solid waste incinerator residues | |
| CN118529986A (en) | Water purification concrete and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |