CN106277953A - A kind of C30 regenerated aggregate concrete and preparation method thereof - Google Patents
A kind of C30 regenerated aggregate concrete and preparation method thereof Download PDFInfo
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- CN106277953A CN106277953A CN201610580759.0A CN201610580759A CN106277953A CN 106277953 A CN106277953 A CN 106277953A CN 201610580759 A CN201610580759 A CN 201610580759A CN 106277953 A CN106277953 A CN 106277953A
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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
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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
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- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
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- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of C30 regenerated aggregate concrete and preparation method thereof.In described every cube of concrete of C30 regenerated aggregate concrete, each material usage is as follows: cement 110 ~ 220kg, regenerative micro powder cement mixture 30 ~ 120kg, regenerative micro powder 30 ~ 90kg, flyash 110 ~ 220kg, Machine-made Sand 490 ~ 595kg, recycled fine aggregate 105 ~ 210kg, regenerated coarse aggregate 200 ~ 360kg, rubble 440 ~ 600kg, water 180 ~ 190kg, additive 5.8 ~ 7.4g, described regenerative micro powder cement mixture is made up of each component of following mass ratio: living construction rubbish powder: CaCl2: desulfurated plaster: clinker is 2 ~ 8:0.21 ~ 2.1:0.1 ~ 1:15 ~ 21.A kind of C30 regenerated aggregate concrete of the present invention and preparation method thereof has the advantages that on the premise of meeting concrete serviceability, endurance quality, and twice laid substantially economizes on resources, and protects environment.
Description
Technical field
The present invention relates to building material field, particularly a kind of C30 regenerated aggregate concrete and preparation method thereof.
Background technology
Along with continuing to increase of China's city reorganization and expansion scale and quickly propelling, in a large number of building Socialist New
The dismounting of old building and structures creates the building castoffs such as substantial amounts of concrete, brick, stone, mortar and tile fragment.According to firmly building
Portion is it is expected that to the year two thousand twenty China also by New Dwelling 30,000,000,000 square metres, consequent building castoff is at least up to 5,000,000,000
Ton.At present, building castoff major part uses the traditional approach such as air storage, landfill to dispose, and does not only take up a large amount of soil, and
Also environment and personal safety can be caused the biggest harm.It addition, a large amount of production of concrete needs a large amount of exploitation high-quality natural sand
Stone resource, causes the severe exacerbation of natural environment.Along with the storage level of natural sand, stone reduces, the rising of cost of winning, building is useless
It is the most more to the research replacing natural sandstone and producing in terms of concrete that gurry is processed into regeneration aggregate, but is processed by building waste
Rear replacement cement, admixture produces concrete aspect and have not been reported.
Summary of the invention
It is an object of the invention to overcome the deficiency of above-mentioned existing background technology, it is provided that a kind of regenerative micro powder lightweight aggregate is high-strength
Concrete, the present invention also provides for the preparation method of this regenerative micro powder lightweight aggregate high-strength concrete, and it is simple and feasible.
It is an object of the invention to be achieved through the following technical solutions:
A kind of C30 regenerated aggregate concrete, in every cube of concrete, each material usage is as follows: cement 110 ~ 220kg, regenerative micro powder
Cement mixture 30 ~ 120kg, regenerative micro powder 30 ~ 90kg, flyash 110 ~ 220kg, Machine-made Sand 490 ~ 595kg, recycled fine aggregate
105 ~ 210kg, regenerated coarse aggregate 200 ~ 360kg, rubble 440 ~ 600kg, water 180 ~ 190kg, additive 5.8 ~ 7.4g, described
Regenerative micro powder cement mixture is made up of each component of following mass ratio: living construction rubbish powder: CaCl2: desulfurated plaster: water
Mud grog is 2 ~ 8:0.21 ~ 2.1:0.1 ~ 1:15 ~ 21.
Preferably, described C30 regenerated aggregate concrete, in every cube of concrete, each material usage is as follows: cement 150 ~
190kg, regenerative micro powder cement mixture 50 ~ 90kg, regenerative micro powder 40 ~ 75kg, flyash 180 ~ 210kg, Machine-made Sand 550 ~
570kg, recycled fine aggregate 140 ~ 180kg, regenerated coarse aggregate 300 ~ 320kg, rubble 480 ~ 500kg, water 180 ~ 190kg, additional
Agent 6.1 ~ 6.8g, described regenerative micro powder cement mixture is made up of each component of following mass ratio: living construction rubbish powder:
CaCl2: desulfurated plaster: clinker is 3 ~ 6:0.5 ~ 1.8:0.4 ~ 1:18 ~ 21.
Preferably, described regenerative micro powder cement mixture is made up of each component of following mass ratio: living construction rubbish powder:
CaCl2: desulfurated plaster: clinker is 4:1.5:1:21.
Preferably, the one or many during described cement is P.O 42.5 Portland cement, silicate PI or PII cement
Kind.
Preferably, described regenerative micro powder is that construction waste crushing grinding is to particle diameter≤80 μm.
Preferably, described living construction rubbish powder is by being broken for less than 30mm granule by building waste, pre-at 400 DEG C
Process ball milling 4h after 3h, then be placed in 600 DEG C of calcinings 2h, 0.5h and be warmed up to 900 DEG C, be incubated 2h, after 0.5h is cooled to room temperature
Arrive, living construction rubbish powder footpath≤80 μm.
Preferably, described recycled fine aggregate be construction waste crushing grinding to modulus of fineness be 2.3 ~ 3.0.
Preferably, described regenerated coarse aggregate be construction waste crushing grinding to grain diameter be 5mm ~ 20mm.
The present invention also provides for the preparation method of described C30 regenerated aggregate concrete, comprises the steps:
1) preparation of living construction rubbish powder: described living construction rubbish powder is by being broken for less than 30mm by building waste
Grain, ball milling 4h after 400 DEG C of pretreatment 3h, then be placed in 600 DEG C calcining 2h, 0.5h be warmed up to 900 DEG C, be incubated 2h, cold at 0.5h
But obtain after room temperature, living construction rubbish powder footpath≤80 μm；
2) preparation of regenerative micro powder cement mixture: the living construction rubbish powder obtained by step 1) and CaCl2, desulfurated plaster,
Clinker forms according to mass ratio 4:1.5:1:21 ground and mixed；
3) preparation of regenerative micro powder: by construction waste crushing grinding to particle diameter less than 80 μm；
4) recycled fine aggregate and the preparation of regenerated coarse aggregate: be 2.3 ~ 3.0 by building waste powder crushing and grinding to modulus of fineness, i.e.
Obtain described recycled fine aggregate；It is 5mm ~ 20mm by building waste powder crushing and grinding to grain diameter, obtains described regenerated coarse aggregate；
The recycled fine aggregate obtained, regenerated coarse aggregate immersion are processed, it is thus achieved that the aggregate that saturation plane is dry；
5) mixing: by the regenerative micro powder cement mixture, regenerative micro powder, recycled fine aggregate and the regenerated coarse aggregate that prepare and its
He mixes by described material, i.e. obtains described C30 regenerated aggregate concrete.
Compared with prior art, the beneficial effects of the present invention is: the present invention is meeting concrete serviceability, durability
On the premise of energy, twice laid substantially, economize on resources, protect environment.
Detailed description of the invention
In order to be more fully understood that the present invention, it is further elucidated with present disclosure below in conjunction with embodiment, but the present invention
Content is not limited solely to the following examples.
Embodiment 1
The present embodiment provides a kind of C30 regenerated aggregate concrete, and in every cube of concrete, each material usage is as follows: cement 150kg,
Regenerative micro powder cement mixture 90kg, regenerative micro powder 40kg, flyash 210kg, Machine-made Sand 550kg, recycled fine aggregate 180kg,
Regenerated coarse aggregate 300kg, rubble 480kg, water 180kg, additive 6.8g.Concrete, described regenerative micro powder cement mixture by
Each component composition of following mass ratio: living construction rubbish powder: CaCl2: desulfurated plaster: clinker is 4:1.5:1:21；Institute
Stating regenerative micro powder is that construction waste crushing grinding is less than 80 μm to particle diameter；Described recycled fine aggregate be construction waste crushing grinding extremely
Modulus of fineness is 2.3 ~ 3.0；Described regenerated coarse aggregate be construction waste crushing grinding to grain diameter be 5mm ~ 20mm.
The preparation method of above-mentioned C30 regenerated aggregate concrete, comprises the steps:
1) preparation of living construction rubbish powder: by building waste by being broken for less than 30mm granule, after 400 DEG C of pretreatment 3h
Ball milling 4h, then be placed in 600 DEG C calcining 2h, 0.5h be warmed up to 900 DEG C, be incubated 2h, obtain after 0.5h is cooled to room temperature, activity is built
Building refuse powder footpath≤80 μm；
2) preparation of regenerative micro powder cement mixture: the living construction rubbish powder obtained by step 1) and CaCl2, desulfurated plaster,
Clinker forms according to mass ratio 4:1.5:1:21 ground and mixed；
3) preparation of regenerative micro powder: by construction waste crushing grinding to particle diameter≤80 μm；
4) recycled fine aggregate and the preparation of regenerated coarse aggregate: be 2.3 ~ 3.0 by building waste powder crushing and grinding to modulus of fineness, i.e.
Obtain described recycled fine aggregate；It is 5mm ~ 20mm by building waste powder crushing and grinding to grain diameter, obtains described regenerated coarse aggregate；
The recycled fine aggregate obtained, regenerated coarse aggregate immersion are processed, it is thus achieved that the aggregate that saturation plane is dry；
5) mixing: by the regenerative micro powder cement mixture, regenerative micro powder, recycled fine aggregate and the regenerated coarse aggregate that prepare and its
He mixes by described material, i.e. obtains described C30 regenerated aggregate concrete.
Embodiment 2
The present embodiment provides a kind of C30 regenerated aggregate concrete, and in every cube of concrete, each material usage is as follows: cement 190kg,
Regenerative micro powder cement mixture 50kg, regenerative micro powder 75kg, flyash 180kg, Machine-made Sand 570kg, recycled fine aggregate 140kg,
Regenerated coarse aggregate 320kg, rubble 500kg, water 190kg, additive 6.1g.Concrete, regenerative micro powder, recycled fine aggregate and regeneration
Coarse aggregate is same as in Example 1；Difference is step 2) described living construction rubbish powder and CaCl2, desulfurated plaster, cement
Grog is according to mass ratio 2:2:0.5:21 ground and mixed.
The preparation method of above-mentioned C30 regenerated aggregate concrete is same as in Example 1.
Embodiment 3
The present embodiment provides a kind of C30 regenerated aggregate concrete, and in every cube of concrete, each material usage is as follows: cement 110kg,
Regenerative micro powder cement mixture 120kg, regenerative micro powder 30kg, flyash 110kg, Machine-made Sand 490kg, recycled fine aggregate 210kg,
Regenerated coarse aggregate 200kg, rubble 440kg, water 190kg, additive 5.8g.Concrete, described regenerative micro powder, recycled fine aggregate and
Regenerated coarse aggregate is same as in Example 1；Difference is step 2) described living construction rubbish powder and CaCl2, desulfurated plaster,
Clinker is according to mass ratio 8:0.3:1:15 ground and mixed.
The preparation method of above-mentioned C30 regenerated aggregate concrete is same as in Example 1.
Embodiment 4
The present embodiment provides a kind of C30 regenerated aggregate concrete, and in every cube of concrete, each material usage is as follows: cement 220kg,
Regenerative micro powder cement mixture 30kg, regenerative micro powder 90kg, flyash 220kg, Machine-made Sand 595kg, recycled fine aggregate 105kg,
Regenerated coarse aggregate 360kg, rubble 600kg, water 180kg, additive 7.4g.Concrete, described regenerative micro powder, recycled fine aggregate and
Regenerated coarse aggregate is same as in Example 1；Difference is step 2) described living construction rubbish powder and CaCl2, desulfurated plaster,
Clinker is according to mass ratio 3:0.5:0.7:18 ground and mixed.
The preparation method of above-mentioned C30 regenerated aggregate concrete is same as in Example 1.
Comparative example 1
The present embodiment provides a kind of C30 regenerated aggregate concrete, and in every cube of concrete, each material usage is as follows: cement 265kg,
Flyash 290kg, Machine-made Sand 550kg, recycled fine aggregate 150kg, regenerated coarse aggregate 300kg, rubble 480kg, water 185kg, outward
Add agent 6g；Cement mixture without regenerative micro powder, regenerative micro powder.Concrete, described recycled fine aggregate and regenerated coarse aggregate and enforcement
Example 1 is identical.
The preparation method of above-mentioned C30 regenerated aggregate concrete is same as in Example 1.
With concrete sample for investigating object, according to GB/T 50,080 2002 " normal concrete mixture performance test
Method standard " divergence of fresh concrete mixture；According to GB/T 50081-2002 " normal concrete mechanical property test
Method standard ", with omnipotent pressure testing machine testing example, comparative example concrete crushing strength；
Through conventionally test, the indices of the concrete that described embodiment is formed sees attached list.
The performance of table 1 C30 regenerated aggregate concrete
As it can be seen from table 1 embodiments of the invention can meet the mix Design requirement of standard C30, with comparative example
Comparative descriptions regenerative micro powder cement mixture, regenerative micro powder replacing partial cement are filled as micro-aggregate and concrete strength are risen rush
Enter effect.
A kind of described C30 regenerated aggregate concrete implementing to be provided to the invention above has carried out detailed Jie
Continue, for one of ordinary skill in the art, according to the thought of the invention embodiment, at detailed description of the invention and application model
Placing and all will change, in sum, this specification content should not be construed as the restriction to the invention.
Claims (9)
1. a C30 regenerated aggregate concrete, it is characterised in that in every cube of concrete, each material usage is as follows: cement 110 ~
220kg, regenerative micro powder cement mixture 30 ~ 120kg, regenerative micro powder 30 ~ 90kg, flyash 110 ~ 220kg, Machine-made Sand 490 ~
595kg, recycled fine aggregate 105 ~ 210kg, regenerated coarse aggregate 200 ~ 360kg, rubble 440 ~ 600kg, water 180 ~ 190kg, additional
Agent 5.8 ~ 7.4g, described regenerative micro powder cement mixture is made up of each component of following mass ratio: living construction rubbish powder:
CaCl2: desulfurated plaster: clinker is 2 ~ 8:0.21 ~ 2.1:0.1 ~ 1:15 ~ 21.
A kind of C30 regenerated aggregate concrete the most according to claim 1, it is characterised in that each material in every cube of concrete
Material consumption is as follows: cement 150 ~ 190kg, regenerative micro powder cement mixture 50 ~ 90kg, regenerative micro powder 40 ~ 75kg, and flyash 180 ~
210kg, Machine-made Sand 550 ~ 570kg, recycled fine aggregate 140 ~ 180kg, regenerated coarse aggregate 300 ~ 320kg, rubble 480 ~ 500kg,
Water 180 ~ 190kg, additive 6.1 ~ 6.8g, described regenerative micro powder cement mixture is made up of each component of following mass ratio:
Living construction rubbish powder: CaCl2: desulfurated plaster: clinker is 3 ~ 6:0.5 ~ 1.8:0.4 ~ 1:18 ~ 21.
A kind of C30 regenerated aggregate concrete the most according to claim 1, it is characterised in that described regenerative micro powder cement mixes
Close material to be made up of each component of following mass ratio: living construction rubbish powder: CaCl2: desulfurated plaster: clinker is 4:1.5:1:
21。
A kind of C30 regenerated aggregate concrete the most according to claim 1, it is characterised in that described cement is P.O 42.5
One or more in Portland cement, silicate PI or PII cement.
A kind of C30 regenerated aggregate concrete the most according to claim 1, it is characterised in that described regenerative micro powder is building
Refuse breaking grinding is to particle diameter≤80 μm.
A kind of C30 regenerated aggregate concrete the most according to claim 2, it is characterised in that described living construction rubbish powder
It is by being broken for less than 30mm granule by building waste, ball milling 4h after 400 DEG C of pretreatment 3h, then it is placed in 600 DEG C of calcining 2h,
0.5h is warmed up to 900 DEG C, is incubated 2h, obtains, living construction rubbish powder footpath≤80 μm after 0.5h is cooled to room temperature.
A kind of C30 regenerated aggregate concrete the most according to claim 1, it is characterised in that described recycled fine aggregate is for building
Building refuse crushing and grinding to modulus of fineness is 2.3 ~ 3.0.
A kind of C30 regenerated aggregate concrete the most according to claim 1, it is characterised in that described regenerated coarse aggregate is for building
Building refuse crushing and grinding to grain diameter is 5mm ~ 20mm.
9. the preparation method of C30 regenerated aggregate concrete described in a claim 1, it is characterised in that comprise the steps:
1) preparation of living construction rubbish powder: described living construction rubbish powder is by being broken for less than 30mm by building waste
Grain, ball milling 4h after 400 DEG C of pretreatment 3h, then be placed in 600 DEG C calcining 2h, 0.5h be warmed up to 900 DEG C, be incubated 2h, cold at 0.5h
But obtain after room temperature, living construction rubbish powder footpath≤80 μm；
2) preparation of regenerative micro powder cement mixture: the living construction rubbish powder obtained by step 1) and CaCl2, desulfurated plaster, water
Mud grog forms according to mass ratio 4:1.5:1:21 ground and mixed；
3) preparation of regenerative micro powder: by building waste powder crushing and grinding to particle diameter less than 80 μm；
4) recycled fine aggregate and the preparation of regenerated coarse aggregate: be 2.3 ~ 3.0 by building waste powder crushing and grinding to modulus of fineness, i.e.
Obtain described recycled fine aggregate；It is 5mm ~ 20mm by building waste powder crushing and grinding to grain diameter, obtains described regenerated coarse aggregate；
The recycled fine aggregate obtained, regenerated coarse aggregate immersion are processed, it is thus achieved that the aggregate that saturation plane is dry；
5) mixing: by the regenerative micro powder cement mixture, regenerative micro powder, recycled fine aggregate and the regenerated coarse aggregate that prepare and its
He stirs at described material mixing, i.e. obtains described C30 regenerated aggregate concrete.
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| CN108298885A (en) * | 2018-04-04 | 2018-07-20 | 中国路桥工程有限责任公司 | Machine-made sand concrete and preparation method thereof |
| CN108558303A (en) * | 2018-01-17 | 2018-09-21 | 同济大学 | A kind of regeneration concrete bulk and its production method |
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| CN110723932A (en) * | 2019-11-04 | 2020-01-24 | 中铁建大桥工程局集团第四工程有限公司 | Underwater anti-dispersion concrete prepared from construction waste recycled aggregate |
| CN113072342A (en) * | 2021-04-20 | 2021-07-06 | 北京市燕通建筑构件有限公司 | Concrete containing recycled aggregate and preparation method and application thereof |
| WO2022028047A1 (en) * | 2020-08-04 | 2022-02-10 | 山东大学 | High-strength concrete and preparation method therefor |
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| CN108298885B (en) * | 2018-04-04 | 2020-09-08 | 中国路桥工程有限责任公司 | Machine-made sand concrete and preparation method thereof |
| CN109675906A (en) * | 2018-11-28 | 2019-04-26 | 东莞理工学院 | A kind of wholly-owned source recycling and reusing system of building castoff |
| CN110723932A (en) * | 2019-11-04 | 2020-01-24 | 中铁建大桥工程局集团第四工程有限公司 | Underwater anti-dispersion concrete prepared from construction waste recycled aggregate |
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