CN112062507A - Concrete containing recycled waste brick fine aggregate - Google Patents
Concrete containing recycled waste brick fine aggregate Download PDFInfo
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- CN112062507A CN112062507A CN202010962250.9A CN202010962250A CN112062507A CN 112062507 A CN112062507 A CN 112062507A CN 202010962250 A CN202010962250 A CN 202010962250A CN 112062507 A CN112062507 A CN 112062507A
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- bricks
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- 239000002699 waste material Substances 0.000 title claims abstract description 56
- 239000004567 concrete Substances 0.000 title claims abstract description 49
- 239000011449 brick Substances 0.000 title claims abstract description 48
- 239000004568 cement Substances 0.000 claims abstract description 26
- 238000010276 construction Methods 0.000 claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 17
- 239000003638 chemical reducing agent Substances 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 11
- 239000010881 fly ash Substances 0.000 claims description 9
- 239000004576 sand Substances 0.000 claims description 7
- 239000012190 activator Substances 0.000 claims description 5
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 4
- 239000000920 calcium hydroxide Substances 0.000 claims description 4
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 3
- 239000001110 calcium chloride Substances 0.000 claims description 3
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000012615 aggregate Substances 0.000 description 52
- 239000000843 powder Substances 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 239000010813 municipal solid waste Substances 0.000 description 6
- 239000000654 additive Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000012216 screening Methods 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical group [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 230000036571 hydration Effects 0.000 description 4
- 238000006703 hydration reaction Methods 0.000 description 4
- 239000004570 mortar (masonry) Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- 229910052593 corundum Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000001603 reducing effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 description 3
- 229920000142 Sodium polycarboxylate Polymers 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000011381 foam concrete Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229920005646 polycarboxylate Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000004645 aluminates Chemical group 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides a concrete containing recycled waste brick fine aggregate, which comprises the following components in percentage by weight: aggregate from raw materials including construction waste bricks, and modified cement. By using such concrete, waste bricks can be fully utilized, and the strength of the concrete can be ensured.
Description
Technical Field
The invention belongs to the technical field of building materials, and particularly relates to concrete containing recycled waste brick fine aggregate and a preparation method thereof.
Background
Along with the steady development of national economy and the acceleration of urbanization process in China, the generated construction waste is increased day by day. It is estimated that cities in China generate about 70 million tons of garbage annually, and the amount of garbage is continuously increasing, wherein the amount of construction garbage is about 33 million tons, and the total amount of garbage accounts for about 50 percent of the total amount of the urban garbage. Most of the demolished buildings are brick-concrete structure buildings, and the construction waste bricks account for a considerable proportion of the construction waste generated by demolishing the buildings. How to realize recycling of the construction waste bricks is widely researched.
CN106830792A discloses a concrete doped with waste bricks and recycled coarse aggregate, which is composed of the following raw materials in parts by weight: 1-1.6 parts of cementing material, 1-1.7 parts of fine aggregate and 1.2-2.5 parts of recycled coarse aggregate, thereby greatly reducing resource consumption in the building construction process, realizing the treatment of building garbage and reducing the environmental burden.
CN110240487A discloses a method for preparing an industrial kiln castable by using building waste bricks as raw materials, which comprises the following steps: 1) equipment selection, 2) crushing, 3) screening and 4) stirring: a. quantitative cement, fine powder and water are simultaneously added into a feed inlet of the refractory castable stirrer through a cement tank, a fine powder storage device and a water tank and are uniformly stirred; b. b, simultaneously adding quantitative fine aggregate and additives into the uniformly stirred slurry in the step a through a fine aggregate storage device and an additive storage device, and uniformly stirring again; c. b, adding coarse aggregate into the uniformly stirred slurry in the step b through a coarse aggregate storage device, and finally stirring to form a refractory castable; the casting material has the characteristics of high strength, cement consumption reduction, construction cost reduction and the like.
CN102701647A discloses a preparation method of recycled aggregate ready-mixed mortar, wherein waste concrete, waste bricks and waste sand ash construction wastes smaller than 690mm are used as raw materials, the raw materials are quantified according to the requirement, the raw materials are subjected to grade screening after being crushed, dried and the moisture content of the raw materials is smaller than or equal to 0.5%, metal, wood dust, plastics and sundries are removed in the grade screening, recycled aggregates with the particle size of 0.075-0.15mm, 0.15-0.3mm, 0.3-0.6mm, 0.6-1.18mm, 1.18-2.36mm, 2.36-4.75mm, 4.75-10mm and 10-32mm are prepared, and the total proportion of the recycled aggregates, cement, mineral powder, cellulose, short fibers, yellow glue powder and waterproof powder to water is 1:0.18, and the recycled aggregates, cement, plastering, waterproof and ground mortar are prepared respectively. Can be used as building material.
CN103553689A discloses a high-strength alkali-resistant refractory castable, which comprises aggregate, powder, a bonding agent, an additive and water, wherein the raw materials in parts by weight are as follows: 51-62 parts of aggregate, 25-30 parts of powder, 3-5 parts of binding agent, 5-6 parts of additive and 5-8 parts of water: wherein the aggregate is composed of waste electric porcelain, waste tiles and coal gangue, the powder is composed of coal gangue, waste electric porcelain, waste tiles, flint clay and silica micropowder, the binding agent is aluminate cement, and the additive is alpha-alumina fine powder.
CN102815964A discloses a construction waste recycling process, which comprises the following steps: collecting waste concrete, waste mortar and waste brick slag; crushing and screening: crushing and screening the collected waste concrete, waste mortar and waste brick slag to obtain a regenerated coarse aggregate and a regenerated fine aggregate; preparing foam concrete: preparing cement slurry: uniformly stirring cement, water, the recycled coarse aggregate and the recycled fine aggregate to obtain cement slurry; foam diluent addition: and adding the foam diluent formed by uniformly mixing the foaming agent and water into the cement slurry and uniformly stirring to obtain the foam concrete.
"influence of typical construction solid waste recycled aggregate on the performance of the environment-friendly brick", Cheng Guo Ming & lt environmental engineering academy, in 2013, regional characteristic aggregates such as construction waste recycled aggregate, bottom slag and stone powder are used for preparing the environment-friendly brick, and the influence of the aggregate on the mechanical property of the environment-friendly brick is systematically investigated. Experimental results show that the influence of the type of the recycled aggregate on the compressive strength of the environment-friendly brick is remarkable, the compressive strength of the environment-friendly brick is gradually increased due to the increase of concrete in the recycled aggregate, and the compressive strength of the environment-friendly brick is obviously reduced due to the increase of the content of clay bricks in the recycled aggregate.
However, in the prior art, when the aggregate is made of the building waste bricks, the strength of the prepared concrete is often not high enough to meet the requirements of some specific applications. Therefore, there is a need for a concrete having high compressive strength using aggregate made of construction waste bricks and a method for preparing the same.
Disclosure of Invention
In order to solve the above problems, the present inventors have conducted extensive studies and extensive experiments to provide a concrete comprising recycled waste brick fine aggregate and a method for preparing the same. The concrete has or even exceeds the compressive strength of concrete made from conventional sand aggregate.
In one aspect of the present invention, there is provided a concrete comprising recycled waste brick fine aggregate, the concrete comprising: aggregate from raw materials including construction waste bricks, and modified cement.
Preferably, the modified cement comprises fly ash.
More preferably, the fly ash is added in an amount of 10-30 wt%, preferably 10-20 wt% of the cement.
Preferably, the modified cement comprises an activator. More preferably, the amount of the activator is 0.5 wt% to 5.0 wt% based on the weight of the modified cement.
Preferably, the activator comprises at least one of calcium hydroxide and calcium chloride.
Preferably, the concrete further comprises sand aggregate.
Preferably, the concrete further comprises a water reducing agent.
The inventor researches and discovers that the crystal of the waste brick fine aggregate is in an amorphous state, has an active base and is used as a mixtureWhen the concrete aggregate is solidified, the pores can be reduced, pore water can be reduced, the capillary action force can be reduced, the microcracks of the concrete can be effectively reduced, and the early drying shrinkage of the test block can be slowed down. Al in fine aggregate of waste brick2O3And SiO2The component is mixed with lime or cement and mixed with water, and then can be chemically reacted with calcium hydroxide to produce a series of hydration products of hydrated calcium silicate, hydrated calcium aluminate and the like, and these products can be hardened in air or water and can produce strength, so that the Ca (OH) content in the hydration system can be reduced2Content, and quickens the hydration process.
The fly ash particles are mostly glass beads, play a role in lubricating in concrete mixtures, can reduce the internal friction, enable the concrete mixtures doped with fly ash to have better fluidity than standard concrete, are convenient for construction, and have the function of water reduction, and the fine particles in the fly ash can be uniformly distributed in cement paste to fill pores and capillary holes, thereby improving the pore structure of the concrete and increasing the compactness of the concrete.
Therefore, the inventor effectively combines the concrete aggregate containing the waste brick aggregate and the fly ash to play the synergistic promotion effect of the concrete aggregate and the fly ash, thereby realizing the advantage complementation.
In another aspect, there is also provided a method of preparing the aforementioned concrete, the method comprising the steps of: aggregate from raw materials including construction waste bricks is mixed with concrete and water.
Preferably, the method further comprises curing after mixing.
Preferably, the aggregate from the waste brick raw material has a particle size of 6mm or more in average.
Preferably, the curing includes 7 days, 14 days and 28 days of curing.
Preferably, the SiO of the building waste brick2The content is more than 63.6 wt%.
Preferably, Al of the construction waste brick2O3The content is more than 21.5 wt%.
Preferably, the SiO of the building waste brick2And Al2O3The sum of the amounts is greater than 89.5 wt.%, preferably greater than 90.0 wt.%. Research shows that when the SiO of the building waste brick is used2And Al2O3When the content satisfies the above requirements, a good hydration effect can be achieved.
The concrete may be for construction of buildings, roads, sport areas, etc.
Preferably, the aggregate from the construction waste bricks is mixed with 10 to 50mm of sand or coarse crushed stone (preferably graded crushed stone) in a weight ratio of 1:1 to 1:5, and used as an aggregate, for example, an aggregate for road concrete. After the two materials are mixed, a framework can be formed in concrete paving, mechanical paving is facilitated, and the embedded lock is more facilitated due to larger particle edges and corners. The large-particle waste bricks can also play a role of a gap filler of graded broken stones, and are favorable for filling and compacting. The proportioning ratio can ensure that the filler can be well compacted in the gaps of the aggregate.
In the present invention, it is particularly preferable that the water reducing agent is a water reducing agent represented by the following formula (I):
wherein, preferably, τ is 0.2 to 0.6, more preferably 0.2 to 0.4; n is preferably an integer from 2 to 4, more preferably from 3 to 4, most preferably 4. When τ is within the range, the optimum coordination of the two polymer blocks can be achieved. The value of n allows to obtain an optimal hydrophobicity and thus an optimal water reducing effect.
The weight average molecular weight of the water-reducing agent of the formula (I) is preferably 7,000-70,000, more preferably 10,000-50,000.
The water reducing agent can be prepared by polymerizing a carboxylate monomer and a polycarboxylate monomer by a simple polymerization method. The polymerization can be carried out by bulk or suspension processes.
Preferably, the water reducing agent is used in an amount of 0.2 to 5.0 wt%, preferably 0.5 to 2.0 wt%, based on the weight of the cement.
The present inventors have found that when aggregate made from raw materials of construction waste bricks and modified cement made from raw materials of construction waste bricks are used together, the strength of concrete is sometimes difficult to meet the requirements for high-standard road concrete applications, and for this reason, the present invention provides the above-mentioned targeted water reducing agent.
It was found that the polymer behaviour of cement at the cement-aggregate particle interface is significantly improved when using this water-reducing agent, and that this water-reducing agent has a positive effect on the surface potential and the rheological properties. When the concrete is used at the same amount, the compressive strength of the concrete can be improved by 18-38% compared with the common commercial polycarboxylate water reducing agent (such as sodium polycarboxylate DY-YL-330 of Nantongdaiyi chemical company).
Detailed description of the preferred embodiments
In order that the invention may be more clearly understood, reference will now be made in detail to the following examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
Taking the waste bricks of the building produced by dismantling, wherein the waste bricks are waste red bricks and SiO of the waste red bricks264.1 wt% of Al2O3The content of 22.3 wt%, the construction waste bricks were crushed with a jaw crusher and then sieved, particles having an average particle diameter of more than 6mm were collected, and the particles were mixed with sand in a weight ratio of 10 to 50mm in the range of 1:4 to be used as aggregate, which was then mixed with modified cement comprising preferably 15.2 wt% fly ash, 0.56 wt% excitant (1: 1 weight mixture of calcium hydroxide and calcium chloride), and 0.51% water reducing agent represented by formula (I) and water. After the cement (content: 7.4 wt%) was mixed with aggregate and water, the compressive strength after curing for 28 days was measured. The determination of the compressive strength is carried out by using a MATEST compressive and flexural testing machine and preparing a test piece according to the test method GB/T2542-2012. The detection proves that the compressive strength is 52.29 MPa.
Comparative example 1
Example 1 was repeated except that the water-reducing agent used was a commercial water-reducing agent (model DY-YL-330 sodium polycarboxylate from Nantongdaiyi chemical company) and the aggregate was sand alone. The compressive strength was measured to be 47.71 MPa.
As can be seen from the above examples and comparative examples, the method of the present application makes full use of the construction waste bricks. And due to the use of the water reducing agent, compared with concrete prepared from pure sandstone aggregate, the compressive strength is not reduced, but is improved.
This written description uses examples to disclose the invention, including the best mode, and also to enable any person skilled in the art to make and use the invention. The patentable scope of the invention is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal languages of the claims. All citations referred to herein are incorporated herein by reference to the extent that no inconsistency is made.
Claims (10)
1. A concrete comprising recycled waste brick fine aggregate, the concrete comprising: aggregate from raw materials including construction waste bricks, and modified cement.
2. The concrete of claim 1, wherein the modified cement comprises fly ash.
3. The concrete according to claim 1 or 2, wherein the modified cement comprises an activator.
4. The concrete of any one of claims 1-3, wherein the activator comprises at least one of calcium hydroxide and calcium chloride.
5. The concrete according to any one of the preceding claims, further comprising sand aggregate.
6. The concrete according to claim 5, further comprising a water reducing agent.
7. A method of producing concrete according to any one of the preceding claims, characterized in that it comprises the following steps: aggregate from raw materials including construction waste bricks is mixed with concrete and water.
8. The method of claim 7, further comprising curing after mixing.
9. A method according to claim 7 or 8, characterized in that the aggregates from the waste brick raw material are particles having an average particle size of 6mm or more.
10. The method of any one of claims 7-9, wherein the curing comprises 7 days, 14 days, and 28 days of curing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010962250.9A CN112062507A (en) | 2020-09-14 | 2020-09-14 | Concrete containing recycled waste brick fine aggregate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010962250.9A CN112062507A (en) | 2020-09-14 | 2020-09-14 | Concrete containing recycled waste brick fine aggregate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112062507A true CN112062507A (en) | 2020-12-11 |
Family
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| CN202010962250.9A Pending CN112062507A (en) | 2020-09-14 | 2020-09-14 | Concrete containing recycled waste brick fine aggregate |
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| Country | Link |
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| CN (1) | CN112062507A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112624693A (en) * | 2020-12-21 | 2021-04-09 | 北京联绿技术集团有限公司 | Method for preparing concrete by using waste bricks and tiles |
| CN112624674A (en) * | 2020-12-23 | 2021-04-09 | 东莞市建业混凝土有限公司 | High-strength recycled concrete and preparation method thereof |
| CN113929396A (en) * | 2021-11-03 | 2022-01-14 | 广州中创建筑科技有限公司 | Environment-friendly recycled concrete brick |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030188501A1 (en) * | 2002-04-05 | 2003-10-09 | Busch Dario Francisco | Recycled building component systems |
| CN104591573A (en) * | 2015-01-28 | 2015-05-06 | 上海市建筑科学研究院 | Waste brick superfine regenerated active micro-powder and preparation method thereof |
| CN109665778A (en) * | 2019-01-15 | 2019-04-23 | 南阳师范学院 | A kind of preparation method for the useless brick coarse aggregate regeneration concrete that strength grade is C40 |
| CN110423066A (en) * | 2019-08-12 | 2019-11-08 | 陕西省建筑科学研究院有限公司 | A kind of full brick slag regenerated aggregate concrete light cellular partition board and preparation method thereof |
| CN111253127A (en) * | 2020-02-10 | 2020-06-09 | 南阳师范学院 | C30 carbon fiber broken brick recycled concrete and preparation method thereof |
-
2020
- 2020-09-14 CN CN202010962250.9A patent/CN112062507A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030188501A1 (en) * | 2002-04-05 | 2003-10-09 | Busch Dario Francisco | Recycled building component systems |
| CN104591573A (en) * | 2015-01-28 | 2015-05-06 | 上海市建筑科学研究院 | Waste brick superfine regenerated active micro-powder and preparation method thereof |
| CN109665778A (en) * | 2019-01-15 | 2019-04-23 | 南阳师范学院 | A kind of preparation method for the useless brick coarse aggregate regeneration concrete that strength grade is C40 |
| CN110423066A (en) * | 2019-08-12 | 2019-11-08 | 陕西省建筑科学研究院有限公司 | A kind of full brick slag regenerated aggregate concrete light cellular partition board and preparation method thereof |
| CN111253127A (en) * | 2020-02-10 | 2020-06-09 | 南阳师范学院 | C30 carbon fiber broken brick recycled concrete and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 付兆岗等: "《铁路工程试验与检测 第2册 工程材料试验检测》", 31 March 2016 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112624693A (en) * | 2020-12-21 | 2021-04-09 | 北京联绿技术集团有限公司 | Method for preparing concrete by using waste bricks and tiles |
| CN112624674A (en) * | 2020-12-23 | 2021-04-09 | 东莞市建业混凝土有限公司 | High-strength recycled concrete and preparation method thereof |
| CN112624674B (en) * | 2020-12-23 | 2022-07-26 | 东莞市建业混凝土有限公司 | High-strength recycled concrete and preparation method thereof |
| CN113929396A (en) * | 2021-11-03 | 2022-01-14 | 广州中创建筑科技有限公司 | Environment-friendly recycled concrete brick |
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Application publication date: 20201211 |