CN104926170A - Construction waste recycling method and subsequent hollow thermal-insulation wall construction method - Google Patents
Construction waste recycling method and subsequent hollow thermal-insulation wall construction method Download PDFInfo
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- CN104926170A CN104926170A CN201510355331.1A CN201510355331A CN104926170A CN 104926170 A CN104926170 A CN 104926170A CN 201510355331 A CN201510355331 A CN 201510355331A CN 104926170 A CN104926170 A CN 104926170A
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- 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
Abstract
The invention relates to a construction waste recycling method which can smash construction wastes and categorize the construction wastes to recycle as new construction materials. The invention further relates to a hollow thermal-insulation wall construction method which can use totally-recycled fine aggregates and slags to construct the hollow thermal-insulation wall. The construction method has the advantages that the thermal-insulation wall is poured on a construction site, a manual brick wall building method is replaced, wall body concrete mixing and building structure concrete mixing are synchronously poured on site according to the different requirements of concrete mixing materials, and seamless connection of a wall body and a building structure is achieved; the wall body is good in overall sealing performance and high in overall density, and the quality of the wall body is much better than a brick wall body; the construction method is simple in process, the building wall body and the building structure are integrally poured at one step, and the construction speed can be increased by 20-40% as compared with current construction speed.
Description
Technical field
The present invention relates to the construction process of a kind of building waste reuse method and follow-up hollow insulation body of wall, belong to resource recovery field.
Background technology
Existing building exterior wall adopts electric coal ash gas brick (to be as the arteriopathy brick of external wall after abolishment soil resource burned brick, actual is the product of inferior quality) artificial brick wall body, external wall material made by electric coal ash gas brick on the one hand, because measuring means is not in place, all again small workshop mode processing lack of standardization, the easy permeable counter tide of most gas brick brick wall bodies, and be easy to weathering.For preventing weathering speed too fast, necessary increase protective layer and cement mortar screeding frock.2, because of gas brick heat-insulating property or deficiency, the technical process of wall heat insulation material need be increased.But existing external-wall heat-insulation material is because of intensity difference, easily aging again, the outer ornament brick of body of wall is caused easily to come off and heat-insulating property weakens problem year by year, heat insulating inner wall is done if be used in, because of intensity difference again easily the moisture absorption cause indoor wall counter tide to fall ash, also unfavorable indoor hydropower installation (as mounting receptacle is difficult to find the wall eating nail).3, manually build a wall and can produce a large amount of skilled worker, and must increase Cement for walls mortar levelling technique because manually laying bricks, due to the difference of artificial state of the art, wall quality is just different separately, and total quality is difficult to be guaranteed.
Summary of the invention
The invention provides a kind of building waste reuse method, existing building stones and yellow ground can be replaced by carrying out after construction waste crushing classification, building waste being recycled, protection of the environment.
A kind of building waste reuse method, comprises the following steps,
Step 1: building waste is pulverized;
Step 2: the building waste after pulverizing is classified, is divided into high-quality aggregate, general aggregate and powder;
Step 3: shaping is carried out to powder and obtains full recycled fine aggregate;
Step 4: respectively high-quality aggregate, general aggregate and full recycled fine aggregate are stacked respectively.
Building waste in step 1 is brick and concrete, building waste after crushed, and wherein particle diameter 20-50mm's is high-quality aggregate, and particle diameter 3-20mm's is general aggregate, and what particle diameter was less than 3mm is powder.
Building waste in step 1 is gas brick, building waste after crushed, and wherein particle diameter 3-50mm's is general aggregate, and what particle diameter was less than 3mm is powder.
In described step 1, building waste is pulverized by crocodile formula pulverizer; The equipment that in step 3, shaping adopts is trimmer.
The particle diameter of described full recycled fine aggregate is less than 0.8mm.
By pulverizing and shaping building waste, obtain high-quality aggregate, general aggregate and full recycled fine aggregate, wherein high-quality aggregate and general aggregate can replace existing building stones to use under construction, the concrete intensity of high-quality aggregate is adopted to reach C40, adopt the concrete of general aggregate to reach C30, and full recycled fine aggregate can replace existing yellow ground to use under construction.Thus realize recycling existing building waste, protection of the environment, reduce building cost.
By the contrast to full recycled fine aggregate and river sand physicals, find that full recycled fine aggregate is better than the physicals of the fine aggregates such as river sand, have good grain composition, apparent density is higher, research finds that full recycled fine aggregate water-intake rate is higher, and for this characteristic, satisfy full recycled fine aggregate water 20h before use in advance, full recycled fine aggregate absorption speed is very fast, and it can adopt convention stir technique in mortar application.
Present invention also offers a kind of construction process of hollow insulation wall, utilize above-mentioned full recycled fine aggregate and slag ash, reduce the laid down cost of hollow insulation wall, and improve the quality of body of wall.
A construction process for hollow insulation body of wall, comprises the full recycled fine aggregate, cement, template, pvc pipe and the slag ash that are obtained by aforesaid method,
The method comprises:
Step 1: two templates are oppositely arranged side by side, two described templates are tightly locked by fixing iron member;
Step 2: insert continuous print one and arrange pvc pipe between two templates, this row's pvc pipe is positioned at the middle of two described templates;
Step 3: cement and full recycled fine aggregate are carried out stirring and obtains mortar, is poured into this mortar in the cavity between pvc pipe and template, forms body of wall;
Step 4: take out pvc pipe, makes body of wall inside form the cavity of hollow, and inject slag ash in this cavity, form heat-preserving wall;
Step 5: template is unloaded from body of wall.
As preferably, before step 1, first smear releasing liquid in the inner side of template.
As preferably, after step 3 completes, carry out step 4 in 5-10h.
As preferably, the mass ratio of cement and full recycled fine aggregate is 1:10-1:4 in step 3.
As preferably, described slag ash is that domestic refuse obtains after burning.
Construction method adopts body of wall to build mode, namely heat-preserving wall is with in building site (or building batch production), artificial fragment of brick is replaced to build a wall method, body of wall concrete mixes and to mix the different requirement scenes of mixing material by concrete respectively from building structure concrete and synchronously build, and makes construction wall part and building structure part form the seamless link of mixed so one.One is that the whole close property of body of wall is good, and whole density is high, and wall quality is much better than fragment of brick body of wall.Thorough solution existing gas brick wall body easy moisture absorption water suction problem.Two is that technique is simple, and construction wall and building structure formed by integrally casting once complete, and the more existing construction speed of construction speed can improve 20%-40%.
Slag ash makes wall heat insulation material, slag ash is filled up body of wall hollow part; Except the heat-insulating property of hollow wall own is better than laying bricks except body of wall, again because hollow has inserted slag ash material, greatly strengthen the heat-insulating property of body of wall.Really can play house desirable heat insulation effect cool in summer and warm in winter.Thoroughly eliminate existing wall heat insulation material mechanical property not enough, easily aging, cost is high, outer ornament brick can also be caused easily to come off, and interior trim is because of quality problems such as easy counter tide metope foamings.
Embodiment
The invention provides a kind of building waste reuse method, comprise the following steps,
Step 1: building waste is pulverized;
Step 2: the building waste after pulverizing is classified, is divided into high-quality aggregate, general aggregate and powder;
Step 3: shaping is carried out to powder and obtains full recycled fine aggregate;
Step 4: respectively high-quality aggregate, general aggregate and full recycled fine aggregate are stacked respectively.
The high-quality aggregate obtained and general aggregate can replace existing building stones to use, and full recycled fine aggregate replaces yellow ground to use under construction, thus reduce building cost, realize recycling building waste, protection of the environment.
It should be noted that, high-quality aggregate refers to that the concrete intensity adopting this high-quality aggregate to prepare can reach C40, and general aggregate refers to, the concrete intensity adopting this aggregate to prepare can reach C30.
That is the intensity of high-quality aggregate itself is greater than the intensity of general aggregate, is that is merely able to prepare general aggregate for the building waste that some relative intensities are more weak, and can not prepares high-quality aggregate, as: gas brick etc.
Contriver considers above situation, and classify before need carrying out fragmentation again to building waste, a class is the building waste that brick and concrete relative intensity are higher, and another kind of is the building waste that gas brick etc. is relatively soft.
For above situation, be brick and concrete situation for building waste, after pulverizing, wherein particle diameter 20-50mm's is high-quality aggregate, and particle diameter 3-20mm's is general aggregate, and what particle diameter was less than 3mm is powder.
Be gas brick for building waste, after crushed, wherein particle diameter 3-50mm's is general aggregate, and what particle diameter was less than 3mm is powder.
In described step 1, building waste is pulverized by crocodile formula pulverizer; The equipment that in step 3, shaping adopts is trimmer, and the particle diameter of described full recycled fine aggregate is less than 0.8mm.
It is emphasized that, when using full recycled fine aggregate to prepare the mortar of identical denseness with proportioning 4:1-10:1 (can the adjust proportioning arbitrarily as required) regulating capacity of cement, the impact that its mortar performance produces shows: mortar performance, mechanical property prepared by full recycled fine aggregate are better than river sand mortar; Full recycled fine aggregate mortar all can meet the requirements of " premixing mortar " (GB/T25181-2010), can replace mortar prepared by river sand and Machine-made Sand.By " premixing mortar " grating, the application that river sand Pre-mixed Concrete can be replaced to be mixed in high building structure build.
The invention still further relates to a kind of construction process of hollow insulation body of wall, comprise the full recycled fine aggregate, cement, template, pvc pipe and the slag ash that are obtained by aforesaid method,
The method comprises:
Step 1: two templates are oppositely arranged side by side, two described templates are tightly locked by fixing iron member;
Step 2: insert continuous print one and arrange pvc pipe between two templates, this row's pvc pipe is positioned at the middle of two described templates;
Step 3: cement and full recycled fine aggregate are carried out stirring and obtains mortar, is poured into this mortar in the cavity between pvc pipe and template, forms body of wall;
Step 4: take out pvc pipe, makes body of wall inside form the cavity of hollow, and inject slag ash in this cavity, form heat-preserving wall;
Step 5: template is unloaded from body of wall.
It should be noted that, in step 4, when taking out pvc pipe, half curdled appearance need be at mortar, normally carry out in 5-10h after mortar building, thus ensure the firm of body of wall.
Conveniently step 5, needs to smear releasing liquid in the inner side of template before step 1, thus facilitates follow-up demoulding step.
Domestic refuse is all directly burned or burning electricity generation process by current each city, but the slag ash after 10% minimizing has directly made landfill disposal, causes the secondary pollution of land resources and water resources or some process having made gas brick.Domestic refuse is originally under the high temperature burned in fact, has carried out the full disaggregating treatment of aseptically process and objectionable impurities, can make it have the naturally Lightness and not replaceable natural insulation feature of Industrial products.
Slag ash is used in body of wall as lagging material by the present invention, improves the heat-insulating property of hollow wall, also protects environment simultaneously.
Slag ash makes wall heat insulation material, slag ash is filled up body of wall hollow part; Except the heat-insulating property of hollow wall own is better than laying bricks except body of wall, again because hollow has inserted slag ash material, greatly strengthen the heat-insulating property of body of wall.Really can play house desirable heat insulation effect cool in summer and warm in winter.Thoroughly eliminate existing wall heat insulation material mechanical property not enough, easily aging, cost is high, outer ornament brick can also be caused easily to come off, and interior trim is because of quality problems such as easy counter tide metope foamings.
It is emphasized that above step just builds the method for a bit of hollow insulation body of wall, and during the higher floor of built on-site, only need to continue upwards to build on the basis that this section of construction completes body of wall.
The template unloaded down and pvc pipe can be to build in next section of hollow wall and continue to use, and economize on resources, reduce costs.
Claims (10)
1. a building waste reuse method, is characterized in that: comprise the following steps,
Step 1: building waste is pulverized;
Step 2: the building waste after pulverizing is classified, is divided into high-quality aggregate, general aggregate and powder;
Step 3: shaping is carried out to powder and obtains full recycled fine aggregate;
Step 4: respectively high-quality aggregate, general aggregate and full recycled fine aggregate are stacked respectively.
2. building waste reuse method according to claim 1, it is characterized in that: the building waste in step 1 is brick and concrete, building waste after crushed, wherein particle diameter 20-50mm's is high-quality aggregate, particle diameter 3-20mm's is general aggregate, and what particle diameter was less than 3mm is powder.
3. building waste reuse method according to claim 1, is characterized in that: the building waste in step 1 is gas brick, building waste after crushed, and wherein particle diameter 3-50mm's is general aggregate, and what particle diameter was less than 3mm is powder.
4. building waste reuse method according to claim 1, is characterized in that: in described step 1, building waste is pulverized by crocodile formula pulverizer; The equipment that in step 3, shaping adopts is trimmer.
5. building waste reuse method according to claim 1, is characterized in that: the particle diameter of described full recycled fine aggregate is less than 0.8mm.
6. a construction process for hollow insulation body of wall, is characterized in that: comprise method obtains according to any one of claim 1-5 full recycled fine aggregate, cement, template, pvc pipe and slag ash,
The method comprises:
Step 1: two templates are oppositely arranged side by side, two described templates are tightly locked by fixing iron member;
Step 2: insert continuous print one and arrange pvc pipe between two templates, this row's pvc pipe is positioned at the middle of two described templates;
Step 3: cement and full recycled fine aggregate are carried out stirring and obtains mortar, is poured into this mortar in the cavity between pvc pipe and template, forms body of wall;
Step 4: take out pvc pipe, makes body of wall inside form the cavity of hollow, and inject slag ash in this cavity, form heat-preserving wall;
Step 5: template is unloaded from body of wall.
7. the construction process of hollow insulation body of wall according to claim 6, is characterized in that: before step 1, first smears releasing liquid in the inner side of template.
8. the construction process of hollow insulation body of wall according to claim 6, is characterized in that: after step 3 completes, carry out step 4 in 5-10h.
9. the construction process of hollow insulation body of wall according to claim 6, is characterized in that: the mass ratio of cement and full recycled fine aggregate is 1:10-1:4 in step 3.
10. the construction process of hollow insulation body of wall according to claim 6, is characterized in that: described slag ash is that domestic refuse obtains after burning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510355331.1A CN104926170A (en) | 2015-06-24 | 2015-06-24 | Construction waste recycling method and subsequent hollow thermal-insulation wall construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510355331.1A CN104926170A (en) | 2015-06-24 | 2015-06-24 | Construction waste recycling method and subsequent hollow thermal-insulation wall construction method |
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| CN104926170A true CN104926170A (en) | 2015-09-23 |
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| CN201510355331.1A Pending CN104926170A (en) | 2015-06-24 | 2015-06-24 | Construction waste recycling method and subsequent hollow thermal-insulation wall construction method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105272116A (en) * | 2015-09-25 | 2016-01-27 | 南昌理工学院 | Brick made from building wastes, and making method thereof |
| CN109057101A (en) * | 2018-08-17 | 2018-12-21 | 罗守训 | The method of construction and exterior wall of support construction and exterior wall |
| CN109834805A (en) * | 2019-03-19 | 2019-06-04 | 华南理工大学 | Non-evaporating full recycled fine aggregate concrete panel of pressure of one kind and preparation method thereof |
-
2015
- 2015-06-24 CN CN201510355331.1A patent/CN104926170A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105272116A (en) * | 2015-09-25 | 2016-01-27 | 南昌理工学院 | Brick made from building wastes, and making method thereof |
| CN109057101A (en) * | 2018-08-17 | 2018-12-21 | 罗守训 | The method of construction and exterior wall of support construction and exterior wall |
| CN109834805A (en) * | 2019-03-19 | 2019-06-04 | 华南理工大学 | Non-evaporating full recycled fine aggregate concrete panel of pressure of one kind and preparation method thereof |
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Application publication date: 20150923 |
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