CN110282920A - A kind of C25 grades of regeneration concrete - Google Patents
A kind of C25 grades of regeneration concrete Download PDFInfo
- Publication number
- CN110282920A CN110282920A CN201910409435.4A CN201910409435A CN110282920A CN 110282920 A CN110282920 A CN 110282920A CN 201910409435 A CN201910409435 A CN 201910409435A CN 110282920 A CN110282920 A CN 110282920A
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- CN
- China
- Prior art keywords
- regeneration concrete
- grades
- coarse aggregate
- concrete
- aggregate
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- 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.)
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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
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/29—Frost-thaw resistance
-
- 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 discloses a kind of C25 grades of regeneration concrete, the component and proportion that contain in regeneration concrete are as follows: cement: regenerated coarse aggregate: fine aggregate: water: water-reducing agent；310~350:555:1147~1245:186~210:1.40~2.17；On the basis of ensure that the mechanical property of C25 strength grade, using the coarse aggregate in regenerated coarse aggregate replacing whole concrete composition made of discarded building castoff, building waste resource utilization is improved to obtain, reduce the exploitation to natural resources, pushes the effect of the sustainable development of resource.
Description
Technical field
The present invention relates to the Concrete technical field of civil engineering more particularly to a kind of C25 grades of regeneration concretes.
Background technique
Concrete, referred to as " concrete " refer to the general designation that cementing integral engineering of gathering materials is met to material by cementitious material.
Regeneration concrete refers to discarded concrete block after broken, cleaning, classification, mixes, substitutes with gradation by a certain percentage
The natural aggregates such as sandstone, regeneration concrete can have following several situations by the combining form gathered materials, and gather materials all regeneration collection
Material；Coarse aggregate is regenerated aggregate, fine aggregate is natural sand；Coarse aggregate is natural rubble or natural pebble, fine aggregate are regeneration collection
Material；Regenerated aggregate substitutes part coarse aggregate or fine aggregate.Component ratio shared by regenerated aggregate is higher, the utilization to building waste resource
Rate is higher, but corresponding mechanical property will reduce, and the concrete of existing C25 strength grade is all to use natural stone for original
Material is made, and there are problems that accelerating depletion of non-renewable resources speed.
Summary of the invention
The purpose of the present invention is to provide a kind of C25 grades of regeneration concretes, it is intended to it is strong to solve existing C25 in the prior art
The concrete for spending grade is all made of to use natural stone for raw material, exists and accelerates asking for depletion of non-renewable resources speed
Topic.
To achieve the above object, a kind of C25 regeneration concrete that the present invention uses, the group contained in the regeneration concrete
Part are as follows: cement: regenerated coarse aggregate: fine aggregate: water: the match ratio of water-reducing agent, the regeneration concrete is 310~350:555:
1147~1245:186~210:1.40~2.17；
Wherein, the recycled coarse aggregate contents are 100%.
Wherein, the partial size of the regenerated coarse aggregate is 5~10mm.
Wherein, match between the regenerated coarse aggregate and the fine aggregate for single-stage.
Wherein, the low alkali portland cement of the cement selection.
Wherein, the fine aggregate uses natural river sand, is middle sand.
Wherein, the sand coarse aggregate ratio of the natural river sand is 67~69.
Wherein, the density of the natural river sand is 2500~2680kg/m3。
Wherein, the regeneration concrete ratio of mud is 0.6.
Wherein, the water-reducing agent uses poly carboxylic acid series water reducer.
A kind of C25 grades of regeneration concretes of the invention, the component contained in the regeneration concrete and proportion are as follows: cement:
Regenerated coarse aggregate: fine aggregate: water: water-reducing agent；310~350:555:1147~1245:186~210:1.40~2.17；It is protecting
It is mixed using regenerated coarse aggregate replacing whole made of discarded building castoff on the basis of the mechanical property for having demonstrate,proved C25 strength grade
Coarse aggregate in solidifying soil ingredient, improves building waste resource utilization to obtain, reduces the exploitation to natural resources, push away
The effect of the sustainable development of resource is moved.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the experimental data tabular drawing of the embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Embodiment 1, referring to Fig. 1, the component in the regeneration concrete matches are as follows: cement: regenerated coarse aggregate: thin collection
Material: water: water-reducing agent, the match ratio of the regeneration concrete are 310:555:1245:186:2.17；Wherein, the thick bone of regeneration
Expect that Replacement rate is 100%；The cement selection PO32.5 portland cement, the regenerated coarse aggregate select airport bridge to remove
Discarded concrete is crushed, and obtained regenerated coarse aggregate is sieved, and the fine aggregate uses river sand, and the water uses tap water,
Obtained characteristic value of cubic concrete compressive strength after agitated, casting, solidification is 29.98MPa, match ratio production
The regeneration concrete, through testing its durability, frost resistance and impermeability are preferable, meet code requirement, are guaranteeing
On the basis of the mechanical property of C25 strength grade, using regenerated coarse aggregate replacing whole coagulation made of discarded building castoff
Coarse aggregate in native ingredient, meets workability, and mechanical property improves building waste resource utilization to obtain, reduces
Exploitation to natural resources has pushed the effect of the sustainable development of resource.
Embodiment 2, referring to Fig. 1, the component in the regeneration concrete matches are as follows: cement: regenerated coarse aggregate: thin collection
Material: water: water-reducing agent, the match ratio of the regeneration concrete are 320:555:1220:192:1.60；Wherein, the thick bone of regeneration
Expect that Replacement rate is 100%；The cement selection PO32.5 portland cement, the regenerated coarse aggregate select explosion residents ready to move with their houses to be dismantled building
Obtained discarded concrete is through broken, screening, washing, the recycled aggregate obtained after dehydration, and the fine aggregate selects the wind of accumulation
Sand, the water use river water, and the characteristic value of cubic concrete compressive strength obtained after agitated, casting, solidification is
31.42MPa, the regeneration concrete of match ratio production, through testing its durability, frost resistance and it is impervious compared with
It is good, meet code requirement, on the basis of ensure that the mechanical property of C25 strength grade, using made of discarded building castoff
Coarse aggregate in regenerated coarse aggregate replacing whole concrete composition improves building waste resource utilization to obtain, reduces
Exploitation to natural resources, has pushed the effect of the sustainable development of resource.
Embodiment 3, referring to Fig. 1, the component in the regeneration concrete matches are as follows: cement: regenerated coarse aggregate: thin collection
Material: water: water-reducing agent, the match ratio of the regeneration concrete are 320:555:1220:192:1.60；Wherein, the thick bone of regeneration
Expect that Replacement rate is 100%；The cement selection PO32.5 portland cement, the regenerated coarse aggregate select concrete to select road
The discarded concrete that hardened face renovates, through broken, screening, washing, the recycled aggregate obtained after dehydration, the fine aggregate choosing
With the fine sand obtained after natural stone artificial pulverizing, the water uses rainwater, well stirring, casting, the concrete obtained after solidification
Cubic compressive strength standard value is 31.53MPa, the regeneration concrete of match ratio production, through carrying out to its durability
Test, frost resistance and impermeability are preferable, meet code requirement, on the basis of ensure that the mechanical property of C25 strength grade, adopt
Coarse aggregate in the regenerated coarse aggregate replacing whole concrete composition made of discarded building castoff is built to obtain to improve
Building refuse resource utilization reduces the exploitation to natural resources, has pushed the effect of the sustainable development of resource.
Further, the partial size of the regenerated coarse aggregate is 5~10mm.In the embodiment of present embodiment, it is described again
The average grain diameter of raw coarse aggregate is suitble to production small-sized prefabricated member in this numberical range, for example high-speed railway slope protection is with hollow
Building block, crack caused by not finding surface by any contraction due to mixed mud, realizes the value added applications to building waste,
Rather than simply it is used for paved roads base.
Further, match between the regenerated coarse aggregate and the fine aggregate for single-stage.In the embodiment of present embodiment
In, the gap between the regenerated coarse aggregate and the fine aggregate is bigger, can be improved water penetration when it is used outdoors
Effect.
Further, the low alkali portland cement of the cement selection.In the embodiment of present embodiment, low alkali silicate
Cement, which can be avoided, induces the regenerated coarse aggregate generation extruding reaction.
Further, the fine aggregate uses natural river sand, is middle sand.In the embodiment of present embodiment, the day
Right river sand has appearance mellow and full, and the poor property of bur, the contact area between the regenerated coarse aggregate is bigger, energy
It is enough improved and bonding force between whole aggregate again.
Further, the sand coarse aggregate ratio of the natural river sand is 67~69.In the embodiment of present embodiment, the natural river
The content of the soil and other sundries that contain in sand is less, can obtain the regeneration concrete slump in the effect of 180-200mm range
Fruit, and cohesiveness and good water-retaining property have good workability, suitable for the regeneration concrete more demanding to workability.
Further, the density of the natural river sand is 2500~2680kg/m3.In the embodiment of present embodiment,
The density of the natural river sand is 2680kg/m3, the effect for keeping concrete proportioning water consumption more stable can be obtained.
Further, the regeneration concrete ratio of mud is 0.6.Referring to Fig. 1, in the embodiment of present embodiment,
Cement consumption is saved.
Further, the water-reducing agent uses poly carboxylic acid series water reducer.In the embodiment of present embodiment, the poly- carboxylic
The volume of sour series high-efficiency water-reducing agent is between 0.4~0.7%, to obtain preferable guarantor's plasticity.
Above disclosed is only a preferred embodiment of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and weighs according to the present invention
Benefit requires made equivalent variations, still belongs to the scope covered by the invention.
Claims (9)
1. a kind of C25 grades of regeneration concrete, which is characterized in that the component contained in the regeneration concrete are as follows: cement: regeneration is thick
Aggregate: fine aggregate: water: water-reducing agent, the match ratio of the regeneration concrete be 310~350:555:1147~1245:186~
210:1.40~2.17；
Wherein, the recycled coarse aggregate contents are 100%.
2. C25 grades of regeneration concrete as described in claim 1, which is characterized in that the partial size of the regenerated coarse aggregate be 5~
10mm。
3. C25 grades of regeneration concrete as claimed in claim 2, which is characterized in that the regenerated coarse aggregate and the fine aggregate
Between match for single-stage.
4. C25 grades of regeneration concrete as described in claim 1, which is characterized in that the low alkali portland cement of the cement selection.
5. C25 grades of regeneration concrete as claimed in claim 2, which is characterized in that the fine aggregate uses natural river sand, is
Sand.
6. C25 grades of regeneration concrete as claimed in claim 5, which is characterized in that the sand coarse aggregate ratio of the natural river sand is 67~69.
7. C25 grades of regeneration concrete as claimed in claim 6, which is characterized in that the density of the natural river sand be 2500~
2680kg/m3。
8. C25 grades of regeneration concrete as described in claim 1, which is characterized in that the regeneration concrete ratio of mud is 0.6.
9. C25 grades of regeneration concrete as described in claim 1, which is characterized in that the water-reducing agent uses polycarboxylic-acid diminishing
Agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910409435.4A CN110282920A (en) | 2019-05-16 | 2019-05-16 | A kind of C25 grades of regeneration concrete |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910409435.4A CN110282920A (en) | 2019-05-16 | 2019-05-16 | A kind of C25 grades of regeneration concrete |
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| CN110282920A true CN110282920A (en) | 2019-09-27 |
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| CN201910409435.4A Pending CN110282920A (en) | 2019-05-16 | 2019-05-16 | A kind of C25 grades of regeneration concrete |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112608089A (en) * | 2021-01-07 | 2021-04-06 | 宜宾双三商品混凝土有限公司 | Concrete material applied to civil engineering and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390963A (en) * | 2011-08-19 | 2012-03-28 | 云南华威废弃物资源化有限公司 | Recycled aggregate medium-dry hard concrete prepared by using building waste and preparation method of recycled aggregate medium-dry hard concrete |
| CN104628344A (en) * | 2015-02-13 | 2015-05-20 | 福建江夏学院 | Low-autogenous shrinkage and high-performance recycled concrete |
| CN104860612A (en) * | 2015-05-20 | 2015-08-26 | 广厦建设集团有限责任公司 | C25 green high-performance concrete prepared from all recycled coarse aggregate |
-
2019
- 2019-05-16 CN CN201910409435.4A patent/CN110282920A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390963A (en) * | 2011-08-19 | 2012-03-28 | 云南华威废弃物资源化有限公司 | Recycled aggregate medium-dry hard concrete prepared by using building waste and preparation method of recycled aggregate medium-dry hard concrete |
| CN104628344A (en) * | 2015-02-13 | 2015-05-20 | 福建江夏学院 | Low-autogenous shrinkage and high-performance recycled concrete |
| CN104860612A (en) * | 2015-05-20 | 2015-08-26 | 广厦建设集团有限责任公司 | C25 green high-performance concrete prepared from all recycled coarse aggregate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112608089A (en) * | 2021-01-07 | 2021-04-06 | 宜宾双三商品混凝土有限公司 | Concrete material applied to civil engineering and preparation method thereof |
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Application publication date: 20190927 |
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