CN111995322A - Preparation method of recycled brick-concrete aggregate pervious concrete - Google Patents
Preparation method of recycled brick-concrete aggregate pervious concrete Download PDFInfo
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- CN111995322A CN111995322A CN202010856851.1A CN202010856851A CN111995322A CN 111995322 A CN111995322 A CN 111995322A CN 202010856851 A CN202010856851 A CN 202010856851A CN 111995322 A CN111995322 A CN 111995322A
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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
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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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
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
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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
Abstract
The invention discloses a preparation method of recycled brick-concrete aggregate pervious concrete, which comprises the steps of screening recycled brick-concrete aggregate, removing impurities by a water floatation method, drying and collecting the recycled brick-concrete aggregate, preparing the recycled brick-concrete aggregate into usable recycled brick-concrete aggregate, pre-wetting the recycled brick-concrete aggregate, adding the pre-wetted recycled brick-concrete aggregate and natural stones into a stirrer, and adding 50% of weighed mixing water into the stirrer to stir for 30 seconds; then pouring the weighed medium sand and cement into the stirrer in sequence for continuously stirring for 30s, and finally pouring the weighed water reducing agent and the rest 50% of mixing water into the stirrer together for stirring for 3min to obtain the uniformly stirred recycled brick-mixed pervious concrete; the invention realizes the effective recycling of the building brick-concrete waste, reduces the loss of natural stone resources, improves the recycling rate of renewable resources and improves the mechanical property strength of later-stage formed concrete.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a preparation method of recycled brick-concrete aggregate pervious concrete.
Background
Along with the continuous promotion of urban construction in China, new problems are inevitably generated, on one hand, the construction solid wastes generated in the urban construction, transformation and demolition processes are increased day by day, wherein brick-concrete wastes are taken as the main materials, and the construction wastes occupy a large amount of land resources and cause serious environmental pollution; on the other hand, the original ground of the city is gradually covered by buildings and cement pavements, so that more and more waterlogging and urban 'heat island effect' appear in the city in rainy days. How to recycle the construction waste efficiently is important for further exploring new application of the recycled materials.
The invention patent with the application number of CN201910489496.6 discloses recycled brick aggregate pervious concrete and a preparation method thereof, the recycled brick aggregate pervious concrete prepared by the technical scheme of the invention has the advantages of good cohesiveness, low self weight, high water absorption, good water retention, good water purification effect, capability of adsorbing heavy metal ions and low cost, can be widely applied to places such as river banks, revetments, pavement of road base layers and the like, but needs to be enhanced by adding hydroxypropyl methyl cellulose, and the raw materials including lithium slag powder are easy to cause heavy metal pollution to water and soil after being brewed for a long time by rainwater and river water.
Admittedly, the construction brick-concrete waste is used as recycled aggregate, and the recycled pervious concrete is prepared, so that the problems of urban construction waste stacking pollution and natural sandstone aggregate resource shortage can be effectively solved, the urban heat island effect and urban waterlogging caused by dense population activities can be relieved, and remarkable economic, social and environmental benefits are brought to the development of building material industry.
However, in the prior art, the defects of the treatment process easily cause that the regenerated aggregate has more edges and corners, uneven surface and large amount of cement particle powder is adhered, and meanwhile, a large amount of micro cracks caused by damage accumulation exist in the particles, so that the regenerated aggregate has the characteristics of low strength and high water absorption rate, and can be widely used for pavement paving. However, waste impurities such as iron nails, broken glass, wood, sawdust, foam and the like contained in the recycled aggregate bring a plurality of difficulties to the preparation of concrete by utilizing the recycled aggregate in the actual production.
Disclosure of Invention
The invention aims to solve the technical problems and provides a preparation method of the recycled brick-concrete aggregate pervious concrete, which has simpler preparation process and better mechanical property, and the preparation method can also remove impurity and waste materials in the recycled brick-concrete aggregate to the maximum extent.
A preparation method of recycled brick-concrete aggregate pervious concrete comprises the following steps:
1. a preparation method of recycled brick-concrete aggregate pervious concrete comprises the following steps:
s1: screening the regenerated brick-concrete aggregate raw material subjected to primary crushing and screening by using a vibrating screen again to obtain regenerated brick-concrete aggregate with the particle size of 4.75-9.5 mm;
s2: removing light waste doped in the recycled brick-concrete aggregate by adopting a water floating method, then placing the recycled brick-concrete aggregate in a washing machine for treatment, removing mortar particles attached to the surface of the recycled brick-concrete aggregate, drying to obtain usable recycled brick-concrete aggregate, and collecting for later use;
s3: weighing dried recycled brick-concrete aggregate, natural stones, medium sand, cement, mixing water and a water reducing agent;
s4: firstly, adding the recycled brick-concrete aggregate weighed in the S3 and natural stones into a stirrer together, adding part of mixing water into the stirrer, and starting stirring; and successively pouring the medium sand and the cement in the step S3 into the stirrer, continuously stirring, and finally uniformly mixing the water reducing agent and the rest mixing water, and pouring the mixture into the stirrer to stir to obtain the uniformly stirred recycled brick-concrete pervious concrete.
Preferably, in S1, the recycled brick-concrete aggregate raw material is sorted while being sieved again by using the vibrating screen, so as to remove bulky iron nails, glass fragments and wood doped in the recycled brick-concrete aggregate.
Preferably, the water floatation method described in S2 includes loading the recycled brick-concrete aggregate processed in S1 into a stirrer with a stirrer at the bottom, soaking in water, starting the stirrer to stir the solid-liquid mixture, standing for 20min after stirring, removing the light waste suspended on the water surface, taking out the recycled brick-concrete aggregate, and placing in a washer to continue processing.
Preferably, the water reducing agent is polycarboxylic acid high-performance water reducing agent powder.
Preferably, the using amount of the water reducing agent is 1% -5% of that of the cement.
Preferably, in the step S4, the uniformly-stirred recycled brick-concrete pervious concrete surface slurry is uniformly wrapped, the recycled brick-concrete aggregate wrapped with the cement slurry is still granular, and the recycled brick-concrete aggregate can be agglomerated by holding the recycled brick-concrete pervious concrete surface slurry with a hand and can be slowly dispersed within 5-10S after the hand is loosened.
Preferably, the cement is one or more of portland cement, ordinary portland cement, portland slag cement or composite portland cement.
Preferably, the lid of the blender of S4 is kept closed during blending.
The invention has the following beneficial effects:
(1) the method prepares the recycled brick-concrete aggregate into the usable recycled brick-concrete aggregate after screening the recycled brick-concrete aggregate by a vibrating screen, removing light waste impurities by a water floating method and removing mortar particles attached to the surface of the recycled brick-concrete aggregate by a washing machine, maximally removes impurity waste in the recycled brick-concrete aggregate, and endows the recycled brick-concrete aggregate with the characteristics of less impurities and reasonable gradation; realizes the effective recycling of the building brick mixed waste, reduces the loss of natural stone resources and improves the recycling rate of renewable resources.
(2) According to the invention, the mixing water is added into the mixer twice, the mixing water added firstly can play a role of wetting the recycled brick-concrete aggregate in advance, the adhesive force among the aggregate particles and between the aggregate particles and cement paste is increased, the cement paste is more uniformly covered on the aggregate, the weak area on the surface of the aggregate particles is repaired and enhanced, the transition area among interfaces is strengthened, and the mechanical property of the recycled brick-concrete aggregate after the pervious concrete is formed is improved.
(3) According to the invention, the cover of the stirrer in S4 is kept closed in the stirring process, so that the water evaporation in the stirring process is reduced, and the performance of the recycled brick-concrete aggregate pervious concrete is ensured.
Drawings
FIG. 1 is a schematic view of a process for preparing pervious concrete from recycled brick-concrete aggregate.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
Example 1
FIG. 1 is a schematic view of a process for preparing pervious concrete from recycled brick-concrete aggregate. As shown in fig. 1, a preparation method of recycled brick-concrete aggregate pervious concrete comprises the following steps:
the replacement rate of the recycled aggregate in the recycled brick-concrete aggregate pervious concrete prepared in the embodiment is 20%.
S1: screening the regenerated brick-concrete aggregate raw material subjected to primary crushing and screening by using a vibrating screen again to obtain regenerated brick-concrete aggregate with the particle size of 4.75-9.5 mm; the raw materials of the recycled brick-concrete aggregate are sorted while being sieved again by using a vibrating screen, and iron nails, glass fragments and wood which are doped in the recycled brick-concrete aggregate and have large volume are removed.
S2: removing light waste doped in the recycled brick-concrete aggregate by adopting a water floating method, then placing the recycled brick-concrete aggregate in a washing machine for treatment, removing mortar particles attached to the surface of the recycled brick-concrete aggregate, drying for 24 hours to obtain usable recycled brick-concrete aggregate, and collecting for later use;
s3: weighing dried recycled brick-concrete aggregate, natural stones, medium sand, cement, mixing water and a water reducing agent;
s4: firstly, adding the recycled brick-concrete aggregate weighed in the step S3 and natural stones into a stirrer together, adding part of mixing water into the stirrer, and stirring for 30S; and successively pouring the medium sand and the cement in the step S3 into the stirrer, continuously stirring for 30S, finally uniformly mixing the certain amount of water reducing agent and the rest mixing water, pouring the mixture into the stirrer together, and stirring for 3min to obtain the uniformly-stirred recycled brick-concrete pervious concrete. The recycled brick-concrete pervious concrete surface slurry which is uniformly stirred is uniformly wrapped, and the recycled brick-concrete aggregate wrapped with the cement slurry is still granular, can be agglomerated by holding with a hand, and is slowly dispersed within 5-10 s after hand loosening. The mixer is a SJD200L type forced single horizontal shaft concrete mixer. And the lid of the blender needs to be closed during blending.
The using amount of various materials in the whole process is 211kg/m of recycled brick-concrete aggregate3844kg/m of natural aggregate3Medium sand 264kg/m3395kg/m cement3590kg/m of water3The dosage of the water reducing agent is determined according to the mixing state of the concrete; and finally forming the concrete mixture into a test block.
The water reducing agent used in the embodiment of the invention is a Basff polycarboxylic acid high-performance water reducing agent powder with a moisture-proof effect.
The cement in the embodiment of the invention adopts the conch brand 52.5 grade common portland cement produced in Hangzhou, Zhejiang, the quality of the cement meets the requirements in the national standard general portland cement (GB 175-2007), and the related technical indexes are shown in Table 1.
TABLE 1 related technical indices of cement
The medium sand used in the embodiment of the invention is river sand with the mesh number of 40-70; the natural stones are basalt stones with the grain size of 4.75-9.5 mm.
The mechanical property index of the concrete prepared by the invention is determined by preparing a laboratory test piece, wherein the compression-resistant test piece is a cube with the size of 150mm multiplied by 150mm, the test piece is molded by using a SJD200L type forced single horizontal shaft concrete mixer for mixing and tamping molding, the test piece is molded after 24 hours of demolding, and is subjected to water bath curing in a standard curing room with the temperature of 20 +/-2 ℃ and the humidity of more than 95 percent, and the compression strength test is performed after the curing is carried out for 28 days. The mechanical properties of the recycled brick-concrete pervious concrete are operated according to the relevant regulations of the standard of the test method of the mechanical properties of common concrete (GB 50081-Bush 2002) and the standard of the test and evaluation of the concrete strength (GB 50107-Bush 2010). The compressive strength of the prepared sample is 27.31 MPa.
Example 2
A preparation method of recycled brick-concrete aggregate pervious concrete is provided, wherein the replacement rate of recycled aggregate is 60%, compared with example 1Compared with the embodiment, the difference of the embodiment is that the dosage of various materials in the whole process of the embodiment is 633kg/m3 of the recycled brick-concrete aggregate, 422kg/m3 of the natural aggregate and 264kg/m of the medium sand3395kg/m cement3590kg/m of water3The dosage of the water reducing agent is determined according to the mixing state of the concrete; and finally forming the concrete mixture into a test block. The test method of the compressive strength of the prepared sample is the same as that of the example 1, and the compressive strength of the finally prepared sample is 16.43 MPa.
Example 3
A preparation method of recycled brick-concrete aggregate pervious concrete is provided, wherein the replacement rate of recycled aggregate is 100%, compared with example 1, the difference of the embodiment is that the consumption of various materials in the whole process of the embodiment is 1054kg/m of recycled brick-concrete aggregate3Medium sand 264kg/m3395kg/m cement3590kg/m3 of water, and the dosage of the water reducing agent is determined according to the mixing state of the concrete; and finally forming the concrete mixture into a test block. The test method of the compressive strength of the prepared sample is the same as that of the example 1, and the compressive strength of the finally prepared sample is 8.18 MPa.
Example 4
A method for producing a recycled brick-concrete aggregate pervious concrete, which is different from example 1 in that the operation of S2 is not performed. The test method of the compressive strength of the prepared sample is the same as that of the example 1, and the compressive strength of the finally prepared sample is 25.81 MPa.
Example 5
The preparation method of the recycled brick-concrete aggregate pervious concrete is different from that in the embodiment 1, in the stirring process in the embodiment S4, firstly, the recycled brick-concrete aggregate and the natural stones are poured into a stirrer to be stirred for 30S, then, the cement and the medium sand are poured into the stirrer to be stirred for 30S, finally, a certain amount of water reducing agent and all weighed mixing water are mixed uniformly, and the mixture is poured into the stirrer to be stirred for 3min, so that the recycled brick-concrete pervious concrete is obtained. The test method of the compressive strength of the prepared sample is the same as that of the example 1, and the compressive strength of the finally prepared sample is 23.68 MPa.
Example 6
A method for producing a recycled brick-concrete aggregate pervious concrete, which is different from example 2 in that the operation of S2 is not performed. The test method of the compressive strength of the prepared sample is the same as that of the example 1, and the compressive strength of the finally prepared sample is 15.77 MPa.
Example 7
The preparation method of the recycled brick-concrete aggregate pervious concrete is different from that of the embodiment 2 in that in the stirring process of the embodiment S4, firstly, the recycled brick-concrete aggregate and the natural stones are poured into a stirrer to be stirred for 30S, then, the cement and the medium sand are poured into the stirrer to be stirred for 30S, finally, a certain amount of water reducing agent and all weighed mixing water are mixed uniformly, and the mixture is poured into the stirrer to be stirred for 3min, so that the recycled brick-concrete pervious concrete is obtained. The test method of the compressive strength of the prepared sample is the same as that of the example 1, and the compressive strength of the finally prepared sample is 15.02 MPa.
Example 8
A method for producing a recycled brick-concrete aggregate pervious concrete, which is different from example 3 in that the operation of S2 is not performed. The test method of the compressive strength of the prepared sample is the same as that of the example 1, and the compressive strength of the finally prepared sample is 7.59 MPa.
Example 9
The preparation method of the recycled brick-concrete aggregate pervious concrete is different from that in the embodiment 3, in the stirring process of S4, firstly, the recycled brick-concrete aggregate and the natural stones are poured into a stirrer to be stirred for 30S, then, the cement and the medium sand are poured into the stirrer to be stirred for 30S, finally, a certain amount of water reducing agent and all weighed mixing water are mixed uniformly, and the mixture is poured into the stirrer to be stirred for 3min, so that the recycled brick-concrete aggregate pervious concrete is obtained. The test method of the compressive strength of the prepared sample is the same as that of the example 1, and the compressive strength of the finally prepared sample is 5.38 MPa.
As can be seen from the compressive strength data, the 28d compressive strength of the recycled brick-concrete pervious concrete prepared by the methods of the embodiments 1 to 3 of the technical scheme of the invention is obviously higher than the 28d compressive strength of the recycled brick-concrete pervious concrete prepared by the methods of the embodiments 4 to 9.
The above-described preferred embodiments of the present invention are not intended to limit the present invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the claims of the present invention.
Claims (8)
1. A preparation method of recycled brick-concrete aggregate pervious concrete comprises the following steps:
s1: screening the regenerated brick-concrete aggregate raw material subjected to primary crushing and screening by using a vibrating screen again to obtain regenerated brick-concrete aggregate with the particle size of 4.75-9.5 mm;
s2: removing light waste doped in the recycled brick-concrete aggregate by adopting a water floating method, then placing the recycled brick-concrete aggregate in a washing machine for treatment, removing mortar particles attached to the surface of the recycled brick-concrete aggregate, drying to obtain usable recycled brick-concrete aggregate, and collecting for later use;
s3: weighing dried recycled brick-concrete aggregate, natural stones, medium sand, cement, mixing water and a water reducing agent;
s4: firstly, adding the recycled brick-concrete aggregate weighed in the S3 and natural stones into a stirrer together, adding part of mixing water into the stirrer, and starting stirring; and successively pouring the medium sand and the cement in the step S3 into the stirrer, continuously stirring, and finally uniformly mixing the water reducing agent and the rest mixing water, and pouring the mixture into the stirrer to stir to obtain the uniformly stirred recycled brick-concrete pervious concrete.
2. The preparation method of the recycled brick-concrete aggregate pervious concrete according to claim 1, characterized in that: and S1, the regenerated brick-concrete aggregate raw materials are sorted while being sieved again by using a vibrating screen, and iron nails, glass fragments and wood with large volume doped in the regenerated brick-concrete aggregate are removed.
3. The preparation method of the recycled brick-concrete aggregate pervious concrete according to claim 1, characterized in that: the water floating method of S2 comprises the steps of firstly, loading the recycled brick mixed aggregate processed by S1 into a stirrer with a stirring device arranged at the bottom, adding water for soaking, starting the stirrer to stir the formed solid-liquid mixture, standing for 20min after stirring is finished, removing the light waste suspended on the water surface, fishing out the recycled brick mixed aggregate, and placing the recycled brick mixed aggregate into a washing machine for continuous processing.
4. The preparation method of the recycled brick-concrete aggregate pervious concrete according to claim 1, characterized in that: the water reducing agent is polycarboxylic acid high-performance water reducing agent powder.
5. The preparation method of the recycled brick-concrete aggregate pervious concrete according to claim 1, characterized in that: the dosage of the water reducing agent is 1% -5% of that of the cement.
6. The preparation method of the recycled brick-concrete aggregate pervious concrete according to claim 1, characterized in that: s4, uniformly coating the slurry on the surface of the uniformly-stirred recycled brick-concrete pervious concrete, and enabling the recycled brick-concrete aggregate coated with the slurry to be granular as it is, holding the aggregate by a hand, and agglomerating the aggregate into clusters, and slowly dispersing the aggregate within 5-10S after loosening the hand.
7. The preparation method of the recycled brick-concrete aggregate pervious concrete according to claim 1, characterized in that: the cement is one or more of Portland cement, ordinary Portland cement, slag Portland cement or composite Portland cement.
8. The preparation method of the recycled brick-concrete aggregate pervious concrete according to claim 1, characterized in that: s4 the lid of the blender is kept closed during blending.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112851241A (en) * | 2021-01-25 | 2021-05-28 | 盐城盛州禾润再生资源有限公司 | Construction waste regeneration brick and preparation method thereof |
| CN115010422A (en) * | 2021-12-03 | 2022-09-06 | 华北水利水电大学 | Recycled aggregate pervious concrete based on waste glass particles, preparation method and modification identification method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100058957A1 (en) * | 2008-09-09 | 2010-03-11 | Chett Boxley | Previous concrete comprising a geopolymerized pozzolanic ash binder |
| CN101857403A (en) * | 2010-05-26 | 2010-10-13 | 上海大学 | Permeable concrete and preparation method thereof |
| CN107032696A (en) * | 2017-03-28 | 2017-08-11 | 同济大学 | A kind of big particle diameter regenerated coarse aggregate concrete wave resistance block and preparation method |
| CN107721292A (en) * | 2017-11-30 | 2018-02-23 | 华北水利水电大学 | A kind of high-performance common brick regeneration light aggregate concrete and preparation method thereof |
| CN110436857A (en) * | 2019-09-17 | 2019-11-12 | 许昌金科资源再生股份有限公司 | Recycled aggregate pervious concrete formula and its production technology containing common brick |
-
2020
- 2020-08-24 CN CN202010856851.1A patent/CN111995322A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100058957A1 (en) * | 2008-09-09 | 2010-03-11 | Chett Boxley | Previous concrete comprising a geopolymerized pozzolanic ash binder |
| CN101857403A (en) * | 2010-05-26 | 2010-10-13 | 上海大学 | Permeable concrete and preparation method thereof |
| CN107032696A (en) * | 2017-03-28 | 2017-08-11 | 同济大学 | A kind of big particle diameter regenerated coarse aggregate concrete wave resistance block and preparation method |
| CN107721292A (en) * | 2017-11-30 | 2018-02-23 | 华北水利水电大学 | A kind of high-performance common brick regeneration light aggregate concrete and preparation method thereof |
| CN110436857A (en) * | 2019-09-17 | 2019-11-12 | 许昌金科资源再生股份有限公司 | Recycled aggregate pervious concrete formula and its production technology containing common brick |
Non-Patent Citations (3)
| Title |
|---|
| 武钦风: "《混凝土施工与检测关键技术》", 28 February 2015, 哈尔滨工业大学出版社 * |
| 王以贤: "《混凝土工》", 31 October 2015, 中国环境出版社 * |
| 高嵩: "《再生泵送混凝土》", 31 March 2019, 哈尔滨工业大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112851241A (en) * | 2021-01-25 | 2021-05-28 | 盐城盛州禾润再生资源有限公司 | Construction waste regeneration brick and preparation method thereof |
| CN115010422A (en) * | 2021-12-03 | 2022-09-06 | 华北水利水电大学 | Recycled aggregate pervious concrete based on waste glass particles, preparation method and modification identification method |
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