CN106522456A - Green and environmentally-friendly concrete hollow block and production method thereof - Google Patents
Green and environmentally-friendly concrete hollow block and production method thereof Download PDFInfo
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- CN106522456A CN106522456A CN201611094924.8A CN201611094924A CN106522456A CN 106522456 A CN106522456 A CN 106522456A CN 201611094924 A CN201611094924 A CN 201611094924A CN 106522456 A CN106522456 A CN 106522456A
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- Prior art keywords
- coarse aggregate
- concrete hollow
- hollow block
- environmental protection
- aggregate
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C1/00—Building elements of block or other shape for the construction of parts of buildings
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a green and environmentally-friendly concrete hollow block. The green and environmentally-friendly concrete hollow block comprises, by weight, 14 parts of water, 31-35 parts of cement, 65-70 parts of fine aggregates and 120-180 parts of coarse aggregates, wherein the coarse aggregates are regenerated coarse aggregates or a regenerated coarse aggregate and a natural coarse aggregate mixture, and the proportion of the regenerated coarse aggregates in the whole coarse aggregates is 0-100%. The invention also discloses a production method of the green and environmentally-friendly concrete hollow block. The method comprehensively takes the good mechanical performances of N-type concrete hollow blocks into consideration, and adopts the regenerated coarse aggregates to partially or completely substitute the natural coarse aggregates in the N-type concrete hollow blocks, so the application range of regenerated concrete is enlarged, and solving of the problems of land occupation and environment pollution of waste concrete is facilitated.
Description
Technical field
The invention belongs to building material field, specifically, is related to a kind of environmental protection concrete hollow block and its system
Preparation Method.
Background technology
In urbanization process, the building waste produced by the dismounting of waste and old building is arbitrarily stacked, and can both take a large amount of soil
Ground, again can pollution of ecological environment.Most of in building waste is discarded concrete, if after passing through to process by discarded concrete
Recycle, then can be with effectively solving the problems referred to above.
Discarded concrete is crushed, regenerated aggregate can be obtained, during concrete batching, using regenerated aggregate
(predominantly regenerated coarse aggregate) concrete that partly or entirely replacement natural aggregate is obtained is referred to as regeneration concrete.Every research table
Bright, the mechanical property of regeneration concrete is little with normal concrete difference, and the outstanding advantages with energy-saving and environment friendly.Mesh
Before, the recycling of regeneration concrete has not yet been formed a perfect production chain, and popularization and application are restricted, and hinders again in turn
Regeneration concrete produces the perfect of chain, and such vicious cycle limits the development of regeneration concrete, therefore, expand regeneration concrete
Range of application be current problem demanding prompt solution.
Concrete small size hollow building block not only have the advantages that to draw materials extensively, it is easy construction, cheap, and built by which
The reinforced masonry structure made has excellent mechanical performances, therefore is used widely.But, the concrete that the country commonly uses is empty
Heart building block (section closed at both ends formula, as shown in Figure 1) exist " wall is thin, rib not to and lifting surface area it is few " the shortcomings of, force path
Complexity, not enough clearly.
Environmental protection concrete hollow block of the present invention can be fabricated to the building block of two kinds of specifications, the new type block profile by
Originally the closed at both ends formula of ordinary concrete hollow block is changed to open type, and section is the I-shaped cross-sections of two connections, rib, wall
Thickness be intended to be thicker than ordinary concrete hollow block, hole ratio is 40%.One kind is master ga(u)ge lattice N formulas concrete hollow block 1
(390 × 190 × 190mm), centre have the cuboid hole of a closing, as shown in Figure 2；Another kind is that auxiliary specification N formula is mixed
Solidifying soil building-block 2 (190 × 190 × 190mm), is I shape, as shown in Figure 3.Due to unique geometric cross section shape of N formula building blocks
Shape, in building process, either fissure of displacement mode is built by laying bricks or stones or straight joint mode is built by laying bricks or stones, and hole, rib can ensure good to body of wall from top to bottom
Good aligned condition, as the reinforced wall (as shown in Figure 4) of building, is capable of achieving the high compact of its glues pouring machine, it is to avoid
The stem stem abrupt change of cross-section within the walls so as to which mechanical property is protected, and easy construction, moreover it is possible to efficiently solve common building block building
The problems such as easy to crack, heat preservation and heat insulation performance is poor, barrier performance difference, it is seen that the combination property of N formula building blocks is better than common building block.
In sum, with discarded concrete as main raw material(s), develop a kind of environmental protection wall of new stress form
Body material, can promote the sustainable development of building trade.
The content of the invention
In view of this, the present invention is directed to above-mentioned problem, there is provided a kind of environmental protection concrete hollow block and its system
The regenerated coarse aggregate produced in smashing waste Concrete can be reclaimed by Preparation Method, the environmental protection concrete hollow block
Utilize, the natural coarse aggregate for replacing to part or all replacing the production of N formulas concrete hollow block used is on the one hand available
The excellent mechanical performances of N formula concrete hollow blocks, on the other hand can expand the range of application of regeneration concrete, contribute to solution
The problems such as certainly discarded concrete accounts for soil and pollution environment.
In order to solve above-mentioned technical problem, the invention discloses a kind of environmental protection concrete hollow block, according to weight
Part includes following components：14 parts of water, 31-35 part cement, 65-70 part fine aggregates, 120-128 part coarse aggregates, wherein, the thick bone
Expect the mixture for regenerated coarse aggregate or regenerated coarse aggregate and natural coarse aggregate, regenerated coarse aggregate accounts for the ratio of whole coarse aggregate weight
Example (recycled coarse aggregate contents) is 0～100%.
Further, natural coarse aggregate is the conventional coarse aggregate of normal concrete, is crushed, is sieved by natural rock or cobble Jing
Rubble or crushed gravel obtained by point, particle size range is 5-10mm.
Further, regenerated coarse aggregate is, by broken, sieving technology, to remove timber, glass, steel by discarded concrete
Deng debris, and then by improving aggregate made by the hardened cement stone accompanying by aggregate particle shape, removing aggregate surface, particle size range
For 5-10mm.
Further, Portland cement of the cement selection strength grade for 42.5MPa.
Further, water directly adopts tap water.
The invention also discloses a kind of preparation method of environmental protection concrete hollow block, comprises the following steps：
S1, weighing：Include 14 parts of water of following components, 31-35 part cement, 65-70 part fine aggregates, 120- according to weight portion
128 parts of coarse aggregates, wherein, the coarse aggregate is the mixture of regenerated coarse aggregate or regenerated coarse aggregate and natural coarse aggregate, is regenerated
It is 0～100% that coarse aggregate accounts for the ratio (recycled coarse aggregate contents) of whole coarse aggregate weight；
S2, mixing, load weighted each component are put in blender and are stirred, and add water and water reducer is uniform
Stirring, obtains mix；
It is S3, compressing, gained mix is poured into into mould, carries out vibrating compressing, the demoulding after molding, that is, N is obtained
Formula concrete hollow block semi-finished product；
Prepared N formulas concrete hollow block semi-finished product are delivered to curing kilns, are periodically watered within curing period by S4, maintenance, protect
Card concrete has suitable curing condition, is burnt out with preventing hydropenia from causing, dry and cracked.
Further, the condition of the curing kilns in step S4：Temperature is 12-16 DEG C, and relative humidity is more than 96%, maintenance
Time is 28 days.
Compared with prior art, the present invention can be obtained including following technique effect：
The present invention has considered the excellent mechanical performances of common N formulas concrete hollow block, and common N formulas concrete is empty
Natural coarse aggregate in heart building block raw material is partly or entirely substituted for regenerated coarse aggregate, so as to expand the application model of regeneration concrete
Enclose, contribute to the problems such as solving discarded concrete land occupation and pollution environment.
Certainly, the arbitrary product for implementing the present invention is it is not absolutely required to while reaching all the above technique effect.
Description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the present invention, this
Bright schematic description and description does not constitute inappropriate limitation of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is ordinary concrete hollow block schematic diagram of the prior art；
Fig. 2 is the environmental protection concrete hollow block schematic diagram of master ga(u)ge lattice of the present invention；
Fig. 3 is the environmental protection concrete hollow block schematic diagram of present invention auxiliary specification；
Fig. 4 is the body of wall that the present invention is built into using environmental protection concrete hollow block.
Specific embodiment
Describe embodiments of the present invention below in conjunction with embodiment in detail, thereby to the present invention how application technology handss
Section come solve technical problem and reach technology effect realize that process can fully understand and implement according to this.
The present invention provides a kind of environmental protection concrete hollow block, includes following components according to weight portion：14 parts of water,
31-35 part cement, 65-70 part fine aggregates, 120-128 part coarse aggregates, wherein, the coarse aggregate is that regenerated coarse aggregate or regeneration are thick
The mixture of aggregate and natural coarse aggregate, regenerated coarse aggregate account for the ratio (recycled coarse aggregate contents) of whole coarse aggregate weight and are
0～100%, wherein recycled coarse aggregate contents are preferably 0%, 30%, 50%, 70%, 100%.
Wherein, described natural coarse aggregate is the conventional coarse aggregate of normal concrete, crushed by natural rock or cobble Jing,
Rubble obtained by screening or crushed gravel, particle size range are 5-10mm；Described regenerated coarse aggregate is passed through by discarded concrete
Broken, sieving technology, removes the debris such as timber, glass, steel, and then by improving aggregate particle shape, removing appended by aggregate surface
Aggregate made by the hardened cement stone, particle size range is 5-10mm；Fine aggregate is from the middle sand that modulus of fineness is 2.3-3.0；
Portland cement of the cement selection strength grade for 42.5MPa；Water adopts tap water, meets JGJ63-2006《Concrete
Water supply standard》.
The present invention provides a kind of preparation method of environmental protection concrete hollow block, specifically implements according to following steps：
S1, weighing：14 parts of water, 31-35 part cement, 65-70 part fine aggregates, 120-128 part coarse aggregates, wherein, it is described thick
Aggregate is regenerated coarse aggregate or the mixture of regenerated coarse aggregate and natural coarse aggregate, and regenerated coarse aggregate accounts for whole coarse aggregate weight
Ratio (recycled coarse aggregate contents) is 0～100%, wherein recycled coarse aggregate contents be preferably 0%, 30%, 50%,
70%th, 100%；
S2, mixing, load weighted each component are put in blender and are stirred, and add water and water reducer is uniform
Stirring, obtains mix；
It is S3, compressing, gained mix is poured into into mould, carries out vibrating compressing, the demoulding after molding, that is, N is obtained
Formula concrete hollow block semi-finished product；
Prepared N formulas concrete hollow block semi-finished product are delivered to curing kilns, the condition of curing kilns by S4, maintenance：Temperature is
12-16 DEG C, relative humidity is more than 96%, and curing time is 28 days；Periodically water within curing period, it is ensured that concrete has suitably
Curing condition, burnt out with preventing hydropenia from causing, dry and cracked.
Embodiment 1
MU7.5 environmental protection concrete hollow blocks, specific component (so that recycled coarse aggregate contents are 50% as an example)
It is as follows：14 parts of water, 31 parts of cement, 65 parts of fine aggregates, 64 parts of natural coarse aggregates, 64 parts of regenerated coarse aggregates.Through preparation process：It is mixed
The detection of environmental protection concrete hollow block sample presentation, strength grade MU7.5 are made after closing stirring → compressing → maintenance 28 days
It is respectively with the detection foundation of unit weight, water absorption rate《Normal concrete small hollow block》GB/T 8239-2014 and《Building knot
Structure load code》GB50009-2012.Assay see the table below 1.It is worth explanation：Found by result of the test, for adopting which
The strength grade of the environmental protection concrete hollow block that his recycled coarse aggregate contents (0%, 30%, 70%, 100%) are prepared
MU7.5 is can reach.
1 environmental protection concrete hollow block the performance test results (MU7.5) of table
Embodiment 2
The material that the present embodiment is selected is same as Example 1, MU10 environmental protection concrete hollow blocks, specific component
(so that recycled coarse aggregate contents are 70% as an example) is as follows：14 parts of water, 35 parts of cement, 70 parts of fine aggregates, 36 parts of natural coarse aggregates,
84 parts of regenerated coarse aggregates.Through preparation process：Environmental protection concrete is made after mixing → compressing → maintenance 28 days
Building-block sample presentation detects that strength grade MU10 and unit weight, the detection foundation of water absorption rate are respectively《Small-sized ordinary concrete is hollow
Building block》GB/T 8239-2014 and《Loading code for design of building structures》GB50009-2012.Assay see the table below 2.It is worth explanation：
Found by result of the test, for the green prepared using other recycled coarse aggregate contents (0%, 30%, 50%, 100%)
The strength grade of environment-friendly concrete building-block can reach MU10.
2 environmental protection concrete hollow block the performance test results (MU10) of table
Described above illustrates and describes some preferred embodiments of invention, but as previously mentioned, it should be understood that invention is not
Form disclosed herein is confined to, the exclusion to other embodiment is not to be taken as, and be can be used for various other combinations, modification
And environment, and can be carried out by the technology or knowledge of above-mentioned teaching or association area in invention contemplated scope described herein
Change.And change that those skilled in the art are carried out and change be without departing from the spirit and scope of invention, then all should be in the appended power of invention
In the protection domain that profit is required.
Claims (9)
1. a kind of environmental protection concrete hollow block, it is characterised in that include following components according to weight portion：14 parts of water, 31-
35 parts of cement, 65-70 part fine aggregates, 120-128 part coarse aggregates, wherein, the coarse aggregate is regenerated coarse aggregate or regenerates thick bone
The mixture of material and natural coarse aggregate, it is 0～100% that regenerated coarse aggregate accounts for the ratio of whole coarse aggregate weight.
2. the preparation method of environmental protection concrete hollow block according to claim 1, it is characterised in that described day
So coarse aggregate is the coarse aggregate that normal concrete is commonly used, the rubble or broken by obtained by natural rock or cobble Jing are crushed, sieved
Cobble, particle size range are 5-10mm.
3. the preparation method of environmental protection concrete hollow block according to claim 1, it is characterised in that it is described again
Raw coarse aggregate removes the debris such as timber, glass, steel by discarded concrete by broken, sieving technology, and then by improving bone
Aggregate made by hardened cement stone accompanying by material particle shape, removing aggregate surface, particle size range is 5-10mm.
4. a kind of environmental protection concrete hollow block according to claim 1, it is characterised in that：Described fine aggregate choosing
With the middle sand that modulus of fineness is 2.3-3.0.
5. the preparation method of environmental protection concrete hollow block according to claim 1, it is characterised in that described water
Mud is from the Portland cement that strength grade is 42.5MPa.
6. the preparation method of environmental protection concrete hollow block according to claim 1, it is characterised in that described water
Tap water is adopted directly.
7. the preparation method of environmental protection concrete hollow block according to claim 1, it is characterised in that it is described again
Raw coarse aggregate accounts for the ratio of whole coarse aggregate weight and is preferably 0%, 30%, 50%, 70%, 100%.
8. a kind of preparation method of environmental protection concrete hollow block, it is characterised in that comprise the following steps：
S1, weighing：Include following components according to weight portion：14 parts of water, 31-35 part cement, 65-70 part fine aggregates, 120-128 parts
Coarse aggregate, wherein, the coarse aggregate is regenerated coarse aggregate or the mixture of regenerated coarse aggregate and natural coarse aggregate, regenerated coarse aggregate
The ratio for accounting for whole coarse aggregate weight is 0～100%；
S2, mixing, load weighted each component are put in blender and are stirred, and add water and water reducer is uniformly stirred
Mix, obtain mix；
It is S3, compressing, gained mix is poured into into mould, carries out vibrating compressing, the demoulding after molding, that is, N formulas are obtained and mix
Solidifying soil building-block semi-finished product；
Prepared N formulas concrete hollow block semi-finished product are delivered to curing kilns, are periodically watered within curing period by S4, maintenance, it is ensured that mixed
Solidifying soil has suitable curing condition, is burnt out with preventing hydropenia from causing, dry and cracked.
9. the preparation method of environmental protection concrete hollow block according to claim 8, it is characterised in that the step
The condition of the curing kilns in S4：Temperature is 12-16 DEG C, and relative humidity is more than 96%, and curing time is 28 days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611094924.8A CN106522456A (en) | 2016-12-02 | 2016-12-02 | Green and environmentally-friendly concrete hollow block and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611094924.8A CN106522456A (en) | 2016-12-02 | 2016-12-02 | Green and environmentally-friendly concrete hollow block and production method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108033735A (en) * | 2017-12-14 | 2018-05-15 | 凉山瑞京环保资源开发有限公司 | Light high strength concrete building-block and preparation method thereof |
| CN110128074A (en) * | 2019-05-30 | 2019-08-16 | 扬州惠民再生资源有限公司 | A kind of regeneration concrete hexagonal block and preparation method thereof |
| CN112279593A (en) * | 2020-11-02 | 2021-01-29 | 江苏绿和环境科技有限公司 | Method for preparing recycled concrete small hollow building block by using waste red brick grinding powder |
| CN112482652A (en) * | 2020-11-19 | 2021-03-12 | 西南大学 | Manufacturing method of full-regeneration steel pipe concrete frame system of filling wall internally filled with regenerative hollow building blocks |
| CN113060990A (en) * | 2021-03-25 | 2021-07-02 | 沈阳理工大学 | Recycled concrete composite self-insulation building block and preparation method and application thereof |
| CN114751680A (en) * | 2022-01-18 | 2022-07-15 | 北京工业大学 | Preparation method of recycled aggregate and recycled concrete load-bearing building block |
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| CN101545299A (en) * | 2009-04-28 | 2009-09-30 | 西安建筑科技大学 | Recycled concrete single-row hole load-bearing block and preparation method thereof |
| CN101603347A (en) * | 2009-07-03 | 2009-12-16 | 北京工业大学 | Be with light heat-insulation mortar bed yi word pattern recycled concrete block and preparation method thereof |
| CN205502353U (en) * | 2016-03-25 | 2016-08-24 | 浙江省围海建设集团股份有限公司 | Building block of regeneration aggregate concrete |
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| CN1384078A (en) * | 2002-06-25 | 2002-12-11 | 许福生 | Method of producing building material with building sludge |
| CN101302086A (en) * | 2007-05-08 | 2008-11-12 | 顾佳勋 | Building block and preparing process thereof |
| CN101545299A (en) * | 2009-04-28 | 2009-09-30 | 西安建筑科技大学 | Recycled concrete single-row hole load-bearing block and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108033735A (en) * | 2017-12-14 | 2018-05-15 | 凉山瑞京环保资源开发有限公司 | Light high strength concrete building-block and preparation method thereof |
| CN110128074A (en) * | 2019-05-30 | 2019-08-16 | 扬州惠民再生资源有限公司 | A kind of regeneration concrete hexagonal block and preparation method thereof |
| CN112279593A (en) * | 2020-11-02 | 2021-01-29 | 江苏绿和环境科技有限公司 | Method for preparing recycled concrete small hollow building block by using waste red brick grinding powder |
| CN112482652A (en) * | 2020-11-19 | 2021-03-12 | 西南大学 | Manufacturing method of full-regeneration steel pipe concrete frame system of filling wall internally filled with regenerative hollow building blocks |
| CN113060990A (en) * | 2021-03-25 | 2021-07-02 | 沈阳理工大学 | Recycled concrete composite self-insulation building block and preparation method and application thereof |
| CN114751680A (en) * | 2022-01-18 | 2022-07-15 | 北京工业大学 | Preparation method of recycled aggregate and recycled concrete load-bearing building block |
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