CN106830773A - A kind of construction refuse regenerated concrete - Google Patents
A kind of construction refuse regenerated concrete Download PDFInfo
- Publication number
- CN106830773A CN106830773A CN201610734928.1A CN201610734928A CN106830773A CN 106830773 A CN106830773 A CN 106830773A CN 201610734928 A CN201610734928 A CN 201610734928A CN 106830773 A CN106830773 A CN 106830773A
- Authority
- CN
- China
- Prior art keywords
- coarse aggregate
- concrete
- regenerated
- aggregate
- construction refuse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
Abstract
The present invention provides a kind of construction refuse regenerated concrete, in view of the existing experiment of regeneration concrete, carries out lot of experiments, there is provided a kind of optimum mix proportion formula mixed with regenerated coarse aggregate, recycled fine aggregate, cement, running water：Regenerated coarse aggregate 24%~36.5%, recycled fine aggregate 36.5%~48%, cement 18%, water 10%；The specification of described regenerated coarse aggregate is 4.75mm~9.50mm；The specification of described recycled fine aggregate is 0.15~4.75mm；Sand coarse aggregate ratio scope is 50%~66.7%, and the construction refuse regenerated concrete prepared using this sand coarse aggregate ratio scope has higher-strength.The present invention can solve the problems, such as to face in regeneration concrete engineer applied that compression strength is low, be to solve the environmental problem that building waste causes, and promote resources, promote regeneration concrete Commercialization application.
Description
Technical field
Field is utilized the invention belongs to construction refuse resource, a kind of construction refuse regenerated concrete is especially disclosed.
Background technology
At present, China's building waste processing mode mainly has：Stack, bury, this processing mode has not met China
The strategy and policy built a resource-conserving and environment-friendly society, in the urgent need to carrying out more appropriate treatment to building waste,
Current optimal mode is and recycles construction refuse resource.
Regeneration aggregate is building waste by after the treatment such as broken, cleaning and classification, being compounded according to certain ratio and level
Conjunction is formed, and regeneration concrete can be improved by changing formulation ratio or mixing the methods such as additive by its concrete for preparing
Performance.But compared with natural aggregate, regeneration aggregate constituent is complicated, and its characteristic has：Corner angle are more, rough surface, wear-resisting
Property is poor, is prepared in particular by hand breaking mode, there is larger porosity；Density and apparent density are small；Water absorption rate is compared with day
Right aggregate is big, and rate of water absorption is fast；Intensity is relatively low；Because its surface adhesion has cement mortar, crush index is bigger than normal, is prepared with it
Recycled concrete strength is relatively low, to regeneration concrete performance impact substantially, therefore, by normal concrete method for designing and raw material
Remained to be discussed when the construction refuse regenerated concrete using range applications.
Therefore, the present invention proposes a kind of construction refuse regenerated concrete, it is the design of building refuse concrete match ratio
Technical support is provided.
The content of the invention
The invention discloses a kind of construction refuse regenerated concrete, based on following theory：Sand coarse aggregate ratio changes, and makes the summary table of aggregate
Area is significantly changed, and has considerable influence to the workability of concrete mix；Influence to mobility, in cement consumption and water
Under conditions of gray scale is certain, the mortar of sand and cement mortar composition plays lubrication and roller pearl between coarse aggregate, can reduce thick
Frictional force between aggregate, thus within the specific limits, as sand coarse aggregate ratio increases, concrete flowability increase；The specific surface area of sand
It is bigger than coarse aggregate, as sand coarse aggregate ratio increases, the summary table product increase of coarse-fine aggregate, under conditions of cement mortar consumption is certain, aggregate table
The slurry amount that bread is wrapped up in is thinning, and lubrication declines, and reduces concrete flowability, so sand coarse aggregate ratio exceedes certain limit, mobility
Increase with sand coarse aggregate ratio and decline；Influence to cohesiveness and water-retaining property, sand coarse aggregate ratio reduces, the cohesiveness and water-retaining property of concrete under
Drop, is also easy to produce bleeding, isolation and stream slurry phenomenon；Sand coarse aggregate ratio increases, and cohesiveness and water-retaining property increase；But sand coarse aggregate ratio is excessive, work as cement mortar
When being not enough to package aggregate surface, then cohesiveness declines on the contrary；The determination of Rational Sand Rate, Rational Sand Rate refers to that sand fills up stone
Simultaneously there is certain surplus capacity in space, and certain thickness screed can be formed between stone, to reduce the frictional resistance between coarse aggregate,
Concrete flowability is set to reach maximum；Or in the case where keeping mobility constant, cement mortar consumption is reached minimum value.
A kind of construction refuse regenerated concrete：In view of the existing experiment of regeneration concrete is limited, lot of experiments is carried out, there is provided one
The optimum mix proportion formula mixed with regenerated coarse aggregate, recycled fine aggregate, cement, running water is planted,
Regenerated coarse aggregate 24%~36.5%
Recycled fine aggregate 36.5%~48%
Cement 18%
Water 10%
The specification of described regenerated coarse aggregate is 4.75mm~9.50mm；The specification of described recycled fine aggregate is 0.15~
4.75mm；Sand coarse aggregate ratio scope is 50%~66.7%, and the construction refuse regenerated concrete prepared using this sand coarse aggregate ratio scope has more high-strength
Degree.
Further, the characteristic of described regenerated coarse aggregate is differential content 2%~6%；Clod content 1.1%~2.5%；Table
See the kg/m3 of density 2410 ~ 2480；Water absorption rate average value is 8.2%.
Further, the characteristic of described recycled fine aggregate is differential content 20%~30%；Clod content 3%~7%；It is apparent
The kg/m3 of density 2450 ~ 2550；Water absorption rate average value is 12%；Modulus of fineness average value 2.15 is medium-fine sand.
Beneficial effect
The construction refuse regenerated concrete prepared using this sand coarse aggregate ratio scope has higher-strength；In the equivalent situation of other conditions
Under, change construction refuse regenerated thick, fine aggregate ratio, improve the performance of construction refuse regenerated aggregate concrete.The present invention can be solved
The low problem of compression strength is certainly faced in regeneration concrete engineer applied, to solve the environmental problem that building waste causes, is promoted
Resources, promote regeneration concrete Commercialization application.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples：
Fig. 1 is construction refuse regenerated concrete 3d intensity contrast schematic diagrames；
Fig. 2 is construction refuse regenerated concrete seven d intensity contrast schematic diagrames；
Fig. 3 is construction refuse regenerated concrete 28d intensity contrast schematic diagrames.
Specific embodiment
Embodiment 1
In view of the existing experiment of regeneration concrete is limited, lot of experiments is carried out, there is provided one kind is with regenerated coarse aggregate（4.75~
9.50mm）, recycled fine aggregate（0.15~4.75mm）, the regenerated aggregate concrete profile error that mixes of cement, running water
Than formula：
Regenerated coarse aggregate 24%~36.5%
Recycled fine aggregate 36.5%~48%
Cement 18%
Water 10%
Sand coarse aggregate ratio scope is 50%~66.7%, and the construction refuse regenerated concrete prepared using this sand coarse aggregate ratio scope has higher-strength.
Further, the characteristic of described regenerated coarse aggregate is differential content 2%~6%, clod content 1.1%~2.5%, table
The kg/m3 of density 2410 ~ 2480 is seen, water absorption rate average value is 8.2%.
Further, the characteristic of described recycled fine aggregate is differential content 20%~30%, and clod content 3%~7% is apparent
The kg/m3 of density 2450 ~ 2550；Water absorption rate average value is 12%；Modulus of fineness average value 2.15 is medium-fine sand.
The present invention is described in further detail below by way of specific embodiment：
The regenerated aggregate concrete match ratio of table 3
Numbering coarse aggregate（%）Fine aggregate（%）Cement（%）Water（%）The ratio of mud
RAC1 18 54 18 10 0.55
RAC2 12 60 18 10 0.55
RAC3 24 48 18 10 0.55
RAC4 36.5 36.5 18 10 0.55
Note：RAC1, RAC2, conventional formulation；RAC3, RAC4, optimization of C/C composites.
Comparative result can be seen that under ratio of mud certain condition from the graph, and sand coarse aggregate ratio changes can influence the strong of regeneration concrete
Degree, and each age compression strength of RAC3, RAC4 is apparently higher than RAC1, RAC2.
Claims (3)
1. a kind of construction refuse regenerated concrete, it is characterized in that：A kind of optimum mix proportion formula is provided,
Regenerated coarse aggregate 24%~36.5%
Recycled fine aggregate 36.5%~48%
Cement 18%
Water 10%
The specification of described regenerated coarse aggregate is 4.75mm~9.50mm；The specification of described recycled fine aggregate is 0.15~
4.75mm；Sand coarse aggregate ratio scope is 50%~66.7%, and the construction refuse regenerated concrete prepared using this sand coarse aggregate ratio scope has more high-strength
Degree.
2. a kind of construction refuse regenerated concrete according to claim 1, it is characterized in that：Described regenerated coarse aggregate
Characteristic is differential content 2%~6%；Clod content 1.1%~2.5%；The kg/m3 of apparent density 2410 ~ 2480；Water absorption rate average value
It is 8.2%.
3. a kind of construction refuse regenerated concrete according to claim 1, it is characterized in that：Described recycled fine aggregate
Characteristic is differential content 20%~30%；Clod content 3%~7%；The kg/m3 of apparent density 2450 ~ 2550；Water absorption rate average value is
12%；Modulus of fineness average value 2.15 is medium-fine sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610734928.1A CN106830773A (en) | 2016-08-28 | 2016-08-28 | A kind of construction refuse regenerated concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610734928.1A CN106830773A (en) | 2016-08-28 | 2016-08-28 | A kind of construction refuse regenerated concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106830773A true CN106830773A (en) | 2017-06-13 |
Family
ID=59145920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610734928.1A Pending CN106830773A (en) | 2016-08-28 | 2016-08-28 | A kind of construction refuse regenerated concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106830773A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107352922A (en) * | 2017-08-23 | 2017-11-17 | 钟传新 | A kind of construction refuse regenerated concrete and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104072058A (en) * | 2014-06-10 | 2014-10-01 | 郑州大学 | Recycled concrete produced from construction wastes and production method thereof |
-
2016
- 2016-08-28 CN CN201610734928.1A patent/CN106830773A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104072058A (en) * | 2014-06-10 | 2014-10-01 | 郑州大学 | Recycled concrete produced from construction wastes and production method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107352922A (en) * | 2017-08-23 | 2017-11-17 | 钟传新 | A kind of construction refuse regenerated concrete and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103058614B (en) | Special thin anti-crack plastering mortar for autoclaved aerated concrete | |
| CN104119056B (en) | Road paving material prepared from phosphogypsum composite residues and preparation method thereof | |
| CN100375730C (en) | Environment-protective building waste-material dry-mixed sand slurry and its preparing method | |
| CN100375732C (en) | Permeable concrete using slag as aggregate | |
| CN108314375B (en) | Regenerated viscose mortar and preparation method thereof | |
| CN108147746A (en) | A kind of Machine-made Sand C120 super high strength concretes for being easy to super high-rise pumping | |
| CN104086131B (en) | Road pavements that building waste is prepared with agstone compound and preparation method thereof | |
| CN104119043A (en) | Road paving material taking building waste as main material and preparation method of road paving material | |
| CN103833242A (en) | Retarding composite limestone powder admixture | |
| CN103396158B (en) | A kind of Antibacterial molybdenum tailings air-entrained concrete building block and preparation method thereof | |
| CN105384403A (en) | Composite floor tiles having good stain resistance capacity | |
| CN103086619A (en) | Method for preparing construction waste micro-powder composite admixture | |
| CN106747090A (en) | A kind of modification dolomite powder base mineral admixture and preparation method thereof | |
| CN105366969B (en) | One kind regeneration self-hardening property cementitious material and preparation method thereof | |
| CN105347732A (en) | Antifreeze durable resin and concrete composite water-permeable floor tile | |
| CN103922686B (en) | A kind of ardealite waste plastics slag materials for wall and preparation method | |
| CN112341091A (en) | Paving brick prepared from construction waste recycled aggregate and preparation process thereof | |
| CN106746800A (en) | A kind of Binder Materials and the pervious concrete comprising Binder Materials | |
| CN107759146A (en) | It is a kind of to utilize concrete brick of waste rubber powder and preparation method thereof | |
| CN103964785A (en) | Method for producing calcium silicate board from artificial stone plate wastes and quartz stone plate wastes | |
| CN115159946A (en) | High-strength gypsum-based sand-free self-leveling mortar with high fluidity and preparation method and application thereof | |
| CN107382215A (en) | A kind of preparation method of high dense concrete road | |
| CN108147727B (en) | High-strength asphalt concrete pavement construction method | |
| CN1874971A (en) | Method of production of hydraulicity adhesive material and structure components, use of the same and device therefor | |
| CN107140907B (en) | A kind of concrete adulterating quartz artificial stone waste residue and flyash |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180118 Address after: 450000 Zhengzhou Jinshui District, Henan, North Ring Road, No. 36 Applicant after: North University of Water Resource and Electric Power Applicant after: Henan Water Conservancy Investment Group Co Ltd Address before: 450000 Zhongmu County, Zhengzhou Province, South Road, building Industrial Park Administrative Committee Applicant before: Zhengzhou Seth Industrial Technology Research Institute Co., Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170613 |