CN104773981A - Regenerated concrete small hollow building block and manufacturing method thereof - Google Patents
Regenerated concrete small hollow building block and manufacturing method thereof Download PDFInfo
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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
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The invention provides a regenerated concrete small hollow building block comprising a dry material which comprises the following components in parts by weight: 10-15 parts of cement, 50-60 parts of recycled coarse aggregate, 10-16 parts of steel slag sand and 15-22 parts of common sand. The invention further provides a manufacturing method and application of the regenerated concrete small hollow building block. The regenerated concrete small hollow building block disclosed by the invention has a good carbon dioxide absorbing property, can effectively save natural resources and effectively solve the environmental problems caused by the stacking of industrial wastes, and simultaneously has the advantages of being low in production cost, good in stress performance, capable of meeting a use requirement on bearing capacity, high in construction speed, energy-saving, emission-reducing, green and environment-friendly.
Description
Technical field
The invention belongs to building construction field of material technology, relate to a kind of regeneration concrete small-sized hollow building block and preparation method thereof, be specifically related to a kind of regeneration concrete small-sized hollow building block with good absorption carbonic acid gas and preparation method thereof.
Background technology
Along with the fast development of Building Trade in China, the consumption of natural sandstone is huge, not only causes the overexploitation of resource, and brings disadvantageous effect to the ecotope of locality.Wherein, concrete hollow block as a kind of take natural sandstone as the masonry bulk of main aggregate, its range of application is very extensive, therefore extremely huge to the consumption of natural sandstone.
In addition, the building waste that the dismounting of waste and old building produces is stacked arbitrarily, can take a large amount of place on the one hand, soil property also can be made to be worsened on the other hand.Slag is the waste residue that Steel industry produces, at present in the utilization ratio of China less than 10%, stacked arbitrarily as waste for a long time, directly polluted environment and water and soil resources.Present stage, the Greenhouse effect that the excess emissions of carbon dioxide brings day by day cause global common concern.It should be noted that China has become the highest country of global carbon dioxide quantity discharged at present, wherein the CO2 emissions of building trade also can not be ignored.Therefore, the resource utilization of building trade and environmental recovery bonds problem are badly in need of effectively being solved.
In order to enable building trade Sustainable development, integrated application building waste and industrial residue being carried out to minimizing and recycling treatment comes into one's own, and development green concrete building is also extremely urgent.Therefore, be necessary to further investigate regeneration concrete small-sized hollow building block that is green, environmental protection.
Summary of the invention
Problem in view of the above, the object of the present invention is to provide a kind of new concrete small-sized hollow building block and preparation method thereof, for overcoming the shortcoming of existing concrete holllow building block, production technique is simple, cost is low, stress performance is good, speed of application is fast, environmental protection, have the service requirementss such as good absorption carbonic acid gas performance finally to make concrete hollow block meet.
For achieving the above object and other relevant objects, the invention provides a kind of regeneration concrete small-sized hollow building block, include siccative, each component and the corresponding weight part of described siccative are:
Described siccative component carry out metering mixing after, then with water and water reducer mix and blend, carry out vibrating not extrusion forming, described regeneration concrete small-sized hollow building block can be prepared.
Preferably, described a kind of regeneration concrete small-sized hollow building block, includes siccative, and each component and the corresponding weight part of described siccative are:
Preferably, any one in the optional silicate cement of described cement or ordinary Portland cement.
Preferably, strength grade >=32.5 grade of described cement.
Preferably, described regenerated coarse aggregate is new broken waste and old concrete.
More preferably, the particle diameter of described regenerated coarse aggregate is 5-10mm.Described regenerated coarse aggregate adopts 5mm and 10mm square hole sieve to sieve, and chooses 5-10mm particle diameter as coarse aggregate; Particle diameter is less than sifting out of 5mm not use; Particle diameter is greater than sifting out of 10mm, after fragmentation, adopts 5mm and 10mm square hole sieve to sieve again.
Preferably, described Steel-slag Sand is selected from bessemer furnace slag.The bessemer furnace slag that described bessemer furnace slag selects lighter weight, pore more.
More preferably, the fineness modulus of described bessemer furnace slag is 2.0-3.2.
More preferably, the particle diameter of described bessemer furnace slag is 0.5-5mm.Described bessemer furnace slag sieve sieve gets 0.5-5mm particle diameter.
Preferably, described normal sands is middle particle diameter common river sand.Some performance of described Steel-slag Sand is slightly worse than common river sand, if fine aggregate all replaces causing the intensity of building block lower with Steel-slag Sand, so in actual applications can in an admixture part particle diameter river sand as fine aggregate.
More preferably, the fineness modulus of described middle particle diameter common river sand is 2.0-3.2.
More preferably, the particle diameter of described middle particle diameter common river sand is 0.5-5mm.
Invention further provides a kind of making method of regeneration concrete small-sized hollow building block, comprise the following steps:
1), after component each in siccative being measured by weight, put into after stirrer stirs, then add water and water reducer uniform stirring, obtain mixed material;
Preferably, in described siccative, each component puts into stirrer churning time is 1-3 minute.More preferably, in described siccative, each component puts into stirrer churning time is 2 minutes.
Preferably, described stirrer is general concrete mixer.
Preferably, described water is tap water.The add-on of described water is appropriate, can add, specifically carry out adjustment according to engineering experience in this area and water reducer consumption and add according to the amount specified in the convenient technical process of this area.
Preferably, described water reducer is ACE308 high efficiency water reducing agent.
Preferably, described water reducer add-on is 0.01-1 part (with parts by weight).
Preferably, adding the churning time after water and water reducer described in is 1-3 minute.More preferably, adding the churning time after water and water reducer described in is 2 minutes.
Preferably, described mixed material is low slump concrete, and the slump of described low slump concrete is 0, in holding agglomerating, wet and not loose state.
2) by step 1) gained mixed material vibrates not extrusion forming, shaping rear demoulding, and carry out maintenance under field conditions (factors), obtain regeneration concrete small-sized hollow building block.
Preferably, described vibration not extrusion forming refers to that use is vibrated not extrusion forming and used equipment, and mixed material can be formed steady, inner fissureless idiosome under suitable frequency shock effect.
Preferably, described vibration not extrusion forming uses equipment to be ordinary concrete hollow block forming machine.
More preferably, described vibration not extrusion forming uses the frequency of equipment to be conventional vibration frequency.
Preferably, the condition of described natural curing is, curing temperature: 20 ± 2 DEG C; Relative humidity: more than 95%; Curing time: 28 days.
Preferably, the specification of described regeneration concrete small-sized hollow building block and normal concrete small hollow block and measure-alike.Described regeneration concrete small-sized hollow building block has various different specification and size.
More preferably, the master ga(u)ge lattice of described regeneration concrete small-sized hollow building block are of a size of 390mm × 190mm × 190mm, have two square openings, and minimum outer wall thickness is not less than 30mm, and the most thick 25mm that is not less than of riblet, hollow rate is not less than 25%.Other specifications can be reached an agreement on by both sides of supply and demand according to the condition such as architectural image, practical use.
More preferably, the master ga(u)ge lattice described in the regeneration concrete small-sized hollow building block of lock tooth are of a size of 390mm × 195mm × 195mm.Other specifications can be reached an agreement on by both sides of supply and demand according to the condition such as architectural image, practical use.
The present invention still further provides a kind of using method of regeneration concrete small-sized hollow building block, comprises the following steps:
A), after component each in siccative being measured by weight, put into after stirrer stirs, then add water and water reducer uniform stirring, obtain mixed material;
B) by steps A) gained mixed material vibrates not extrusion forming, shaping rear demoulding, and carry out maintenance under field conditions (factors), obtain regeneration concrete small-sized hollow building block;
C) by step B) gained regeneration concrete small-sized hollow building block adopts the construction process masonry panel of dry wall.
The performance of the good absorption carbon dioxide that described regeneration concrete small-sized hollow building block is had promotes by the construction process of described dry wall further.
The invention discloses the purposes of a kind of regeneration concrete small-sized hollow building block in construction material.
Preferably, described purposes is the purposes of a kind of regeneration concrete small-sized hollow building block in secondary structure or non-structural element.Described secondary structure or non-structural element are enclosure wall, retaining wall and frame wall filled with masonry etc.
Preferably, described purposes is a kind of purposes of regeneration concrete small-sized hollow building block in flood control slope wall with lock tooth.When this new type block has lock tooth, can also be widely used in the body of wall of flood control bank protection, be convenient to install, dismantle and transport.It should be noted that the splicing of this lock key-wall body blockhouse combines, blockhouse can not adopt masonry mortar, and the core bore of Masonry Wall should align up and down, and pre-manufactured hole post or wooden Kong Zhu can be inserted in centre, to strengthen globality and the bearing capacity of flood control body of wall.
As mentioned above, the invention discloses a kind of regeneration concrete small-sized hollow building block and preparation method thereof, compared with normal concrete small hollow block, part fine aggregate Steel-slag Sand in this new type block replaces, natural rubble or cobble regenerated coarse aggregate replace, effectively natural resources can not only be saved like this, and the environmental problem brought due to the stacking of trade waste can be effectively solved.
Regeneration concrete small-sized hollow building block of the present invention, its cement used contains more CaO and hydrated calcium silicate, can generate CaCO in hydration process with carbon dioxide reaction
3, reach the effect of admittedly depositing carbonic acid gas; In slag, the content of CaO is also higher, and its essential mineral is tricalcium silicate and Dicalcium Phosphate (Feed Grade) mutually, and hydraulicity effect also will consume a certain amount of carbonic acid gas; Regeneration aggregate contains higher porosity because it adheres to old mortar, also has the potential of absorbing carbon dioxide.The regeneration concrete small-sized hollow building block be made by these materials has porosity high, and the basic oxide of its inside and carbonic acid gas are easy to react and form CaCO
3, thus there is stronger carbon dioxide absorption energy.And this kind of regeneration concrete small-sized hollow building block in use can also can absorb the carbonic acid gas in air, intensity can be made to increase further on the one hand, also can absorb and consume a certain amount of carbonic acid gas on the other hand, the weather resistance in its later stage also will increase.
The making of regeneration concrete small-sized hollow building block of the present invention and construction technology simply, generally without exterior plaster or ornament layer, can adapt to large-scale industrialization operating process, and can be widely used in production and life.This new type block is applicable to non-antidetonation fortified defence area and seismic fortification intensity is 6 to 8 degree areas; Be mainly used in the non-bearing wall body of tier building or the infilled wall of skeleton construction.
Regeneration concrete small-sized hollow building block of the present invention has good use properties, and its manufacture craft is the same with normal concrete small hollow block with equipment, does not therefore need other making equipment and carry out technical training, can save time like this, reduced cost.Particularly whole coarse aggregates of this regeneration concrete small-sized hollow building block can be replaced by regenerated coarse aggregate, and therefore this building block can reduce production cost further.In addition, in use when after a certain amount of carbonic acid gas of absorption, the weather resistance of such building block also will increase.In addition, it is good that regeneration concrete small-sized hollow building block of the present invention also has stress performance, the service requirementss such as satisfied expection bearing capacity, speed of application are fast, energy-saving and emission-reduction, environmental protection, environmental friendliness.
Accompanying drawing explanation
Fig. 1 is shown as each portion structure schematic diagram of regeneration concrete small-sized hollow building block of the present invention, wherein, and 1: length; 2: width; 3: highly; 4: end face; 5: rib is thick; 6: wall thickness.
Fig. 2 is shown as the specification schematic diagram of regeneration concrete small-sized hollow building block of the present invention, and wherein, master ga(u)ge lattice are of a size of 390mm × 190mm × 190mm.
Fig. 3 is shown as all size schematic diagram 3a, 3b, 3c, 3d, 3e, 3f of regeneration concrete small-sized hollow building block of the present invention.
Fig. 4 is shown as building construction structural representation 4a, 4b of regeneration concrete small-sized hollow building block of the present invention, and wherein, 4a is that exterior wall corner builds method and stem stem structural map; 4b is that T-shaped corner builds method and stem stem structural map.
Fig. 5 is shown as the specification schematic diagram with the regeneration concrete small-sized hollow building block of lock tooth of the present invention, and wherein, master ga(u)ge lattice are of a size of 390mm × 195mm × 195mm.
Fig. 6 is shown as building construction structural representation 6a, 6b, the 6c with the regeneration concrete small-sized hollow building block of lock tooth of the present invention, and wherein, 5a is the two dimensional structure schematic diagram locking tooth mode between same direction multi-row Masonry Wall; 5b is the two dimensional structure schematic diagram locking tooth mode between non-same direction multi-row Masonry Wall; 5c is the masonry way vertical planning drawing of locking tooth building block.
Embodiment
Below by way of specific specific examples, embodiments of the present invention are described, this example is only not used in for illustration of the present invention and limits the scope of the invention.Those skilled in the art the content disclosed by this specification sheets can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this specification sheets also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.
The raw material that following instance uses and mix-design as follows:
1, raw material
1.1 cement: strength grade is not less than silicate cement or the ordinary Portland cement of 32.5 grades
1.2 regenerated coarse aggregates: new broken waste concrete, particle diameter is 5-10mm.
1.3 Steel-slag Sands: bessemer furnace slag, particle diameter is 0.5-5mm, and its main chemical compositions and physicals are in shown in table 1 and table 2.
The main chemical compositions of table 1 slag
| Chemical composition | SiO 2 | Fe 2O 3 | Al 2O 3 | CaO | MgO | FeO | MnO | P 2O 5 | f-CaO |
| Content/% | 15.86 | 22.37 | 3.88 | 44.00 | 10.04 | 7.30 | 1.11 | 1.34 | 0.80 |
The Main physical performance of table 2 slag
| Performance | Apparent density/(kg/m 3) | Tap density (kg/m 3) | Fineness modulus | Water-intake rate | Crush index |
| Steel-slag Sand | 3600 | 1900 | 2.0-3.2 | 2.90 | 34％ |
1.4 normal sands: middle particle diameter river sand, fineness modulus controls at 2.0-3.2.
1.5 water reducers: ACE308 high efficiency water reducing agent.
1.6 water: tap water.
2, mix-design
The mix calculation formula that this example adopts is a set of useful calculating method of summing up out on the basis of a large amount of engineering practice and experimental formula, the examination being relatively applicable to regeneration concrete holllow building block is joined, and especially strength grade is the regeneration concrete holllow building block of MU5.0, MU7.5 and MU10.0.Different from calculation formula in the past, this applies a formula more close to true proportioning.
The determination of 2.1 concrete strengths
2.1.1 the intensity of regeneration concrete small-sized hollow building block is relevant with the concrete strength used with hollow rate, can use following formulae discovery:
In formula: f
b-prepare the concrete 28d ultimate compression strength (MPa) that this building block uses;
F
kthe design strength (MPa) of-this building block;
The hollow rate of E-this building block.
2.1.2 the intensity of regeneration concrete small-sized hollow building block is also relevant with other factors such as moulding process, curing condition, Shape Coefficient, hollow rates, also uses following formula supplement calculation:
f
h＝f
b·D·H·M·K+6.6
In formula: f
hthe preparation strength (MPa) of-this holllow building block;
(automatic gauge vibration compression type gets 1.00 to D-moulding process coefficient; Vibration compression type gets 1.10; Vibrate not compression type and get 1.20);
H-curing condition coefficient, this building block adopts curing with carbon dioxide value to be 1.3;
K-Shape Coefficient, by converting flexible λ
nP, conversion slenderness ratio β
nPcalculate, can reference table 3;
M-hollow rate is to the regulation coefficient (by table 4 value) of intensity;
The hollow rate of E-building block.
Table 3 Shape Coefficient K tables look-up
The relation of table 4 hollow rate E and intensity regulation coefficient M
| E | 0.46 | 0.47 | 0.48 | 0.49 | 0.50 | 0.51 | 0.52 | 0.53 | 0.54 | 0.55 | 0.56 | 0.57 | 0.58 | 0.59 |
| M | 1.12 | 1.14 | 1.17 | 1.21 | 1.26 | 1.32 | 1.38 | 1.47 | 1.56 | 1.66 | 1.77 | 1.83 | 1.90 | 2.00 |
2.2 determine water consumption
Regeneration concrete low slump concrete that small-sized hollow building block uses, its slump is 0.Removing is reproduced the water of aggregate and Steel-slag Sand absorption, and residue water consumption is about 135 ~ 150kg/m
3.In actual preparation, should according to the actual amount of the adjustment water such as used admixture and material moisture content.
2.3 determine water cement ratio and cement consumption
Regeneration concrete small-sized hollow building block needs to use curing with carbon dioxide, and therefore water cement ratio plays a very important role, and calculates by following formula:
In formula: the weight ratio of (W/C) '-mixture water used and cement;
F
hthe preparation strength (MPa) of-this holllow building block;
F
ce, g-strength of cement grade.
Comparatively normal concrete is low to consider the mechanical property of regeneration concrete, carries out examination timing suitably by (W/C) ' turn down 0.01 ~ 0.05, thus obtains actual water cement ratio W/C.Therefore, every m
3the cement consumption of mixture is:
In formula: the actual weight ratio of W/C-mixture water used and cement;
M
c0cement consumption (the kg/m of-mixture
3);
M
w0water consumption (the kg/m of-mixture
3).
Known by above-mentioned formulae discovery, in the present invention, the water cement ratio of regeneration concrete small-sized hollow building block is got between 0.35-0.57.In order to reduce quality risk, strength of cement generally increases 2.5MPa on its strength grade basis.
2.4 determine sand coarse aggregate ratio
The sand coarse aggregate ratio β of regeneration concrete small-sized hollow building block
s, following formulae discovery can be used:
In formula: D
mthe maximum particle diameter (mm) of-coarse aggregate
2.5 consumptions determining coarse-fine aggregate
Regeneration concrete small-sized hollow building block is 2200kg/m as worked as its volume mass
3time, adopt following formula to calculate the consumption of coarse-fine aggregate:
In formula: m
sfine aggregate consumption (the kg/m of-every cubic meter of concrete
3);
M
gcoarse aggregate consumption (the kg/m of-every cubic meter of concrete
3);
The same above regulation of other symbol.
Embodiment 1-embodiment 5
1, experimental technique
Take siccative component respectively by weight, put into stirrer stir 1-3 minute, then add water and water reducer stir be no less than 2 minutes, by the not extrusion forming of gained material vibrating, shaping rear demoulding, carries out natural curing, obtains regeneration concrete small-sized hollow building block.Wherein, described natural curing be by the test block after shaping temperature be 18-22 DEG C, relative humidity is carry out maintenance in the environment of more than 95%, curing time is 28 days, can obtain the regeneration concrete small-sized hollow building block that can be used in construction work.
The specification of described regeneration concrete small-sized hollow building block and normal concrete small hollow block and measure-alike, specifically as shown in Figure 3, wherein, the master ga(u)ge lattice of building block are as shown in Figure 3 a of a size of 390mm × 90mm × 190mm; The master ga(u)ge lattice of building block are of a size of 390mm × 140mm × 190mm as shown in Figure 3 b; The master ga(u)ge lattice of building block are of a size of 390mm × 290mm × 190mm as shown in Figure 3 c; The master ga(u)ge lattice of building block are of a size of 390mm × 240mm × 190mm as shown in Figure 3 d; The master ga(u)ge lattice of building block are of a size of 390mm × 240mm × 190mm as shown in Figure 3 e; The master ga(u)ge lattice of building block are of a size of 390mm × 190mm × 190mm as illustrated in figure 3f.
By the regeneration concrete small-sized hollow building block prepared, adopt the construction process of dry wall, build method or T-shaped corner block method masonry panel, as shown in Fig. 4 a, 4b according to exterior wall corner.Also the regeneration concrete small-sized hollow building block with lock tooth can be prepared, be applied in the body of wall of flood control bank protection, this kind of building block splicing is used to combine, masonry mortar can not be adopted, the core bore of Masonry Wall should align up and down, pre-manufactured hole post or wooden Kong Zhu can be inserted in centre, to strengthen globality and the bearing capacity of flood control body of wall, specifically as shown in Fig. 6 a, 6b, 6c.
The small-sized hollow building block of regeneration concrete described in embodiment 1-5 specification and be of a size of main specification: 390mm × 190mm × 190mm, two square openings, minimum outer wall thickness is not less than 30mm, the most thick 25mm that is not less than of riblet, hollow rate is not less than 25%, and weight is 18-20kg/ block, specifically sees Fig. 1-2.When described regeneration concrete small-sized hollow building block has lock tooth, master ga(u)ge lattice are of a size of 390mm × 195mm × 195mm, specifically see Fig. 5.
In embodiment 1-5, each component and proportioning are as illustrated in tables 5-6.Wherein, as shown in table 5, be the siccative component add-on by weight of regeneration concrete small-sized hollow building block.As shown in table 6, be the actual add-on of the siccative component of regeneration concrete small-sized hollow building block and water, water reducer.
Regeneration concrete small-sized hollow building block siccative formula table (weight part) in table 5 embodiment 1-5
Regeneration concrete small-sized hollow building block formula table (actual amount) in table 6 embodiment 1-5
2, building block specification and dimensional requirement
Limit by the specification and size of showing the regeneration concrete small-sized hollow building block that embodiment 1-5 proportioning obtains in 5-6, specific standards is in table 7.
Table 7 regeneration concrete small-sized hollow building block permissible variation in dimension and minimum thickness (mm)
| The permissible variation of size | Acceptable end product | Goods of inferior quality |
| Length | ±3 | ±3 |
| Width | ±3 | ±3 |
| Highly | ±3 | ±3 |
| Minimum outer wall thickness | 30 | 30 |
| Most riblet is thick | 25 | 25 |
| Bending≤ | 2 | 3 |
3, performance test
Carry out performance test according to relevant criterion respectively to the regeneration concrete small-sized hollow building block obtained by embodiment 1-5 proportioning in table 5-6, its result is as shown in table 8.
Table 8 embodiment 1-5 obtains block performance test result
Show 5-6 using MU7.5 as design strength, the suitable Replacement rate that have adjusted water cement ratio, sand coarse aggregate ratio and Steel-slag Sand.As shown in Table 8, the ultimate compression strength of obtained in above-described embodiment 1-5 regeneration concrete small-sized hollow building block all reaches design strength; The specific absorption of carbonic acid gas also reaches expection requirement, shows that intensity and the weather resistance of building block all improve, and wherein anti-freezing property also strengthens to some extent than general regeneration concrete holllow building block after a certain amount of carbonic acid gas of absorption.
In sum, the invention discloses a kind of regeneration concrete small-sized hollow building block, there is good absorbing carbon dioxide performance, effectively can not only save natural resources, and can effectively solve the environmental problem brought due to the stacking of trade waste, also have that production cost is low, stress performance good simultaneously, meet the service requirements of bearing capacity, speed of application is fast, energy-saving and emission-reduction, environmental protection, advantages of environment protection.So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (10)
1. a regeneration concrete small-sized hollow building block, includes siccative, and each component and the corresponding weight part of described siccative are:
2. regeneration concrete small-sized hollow building block according to claim 1, is characterized in that, any one in the optional silicate cement of described cement or ordinary Portland cement; Strength grade >=32.5 grade of described cement.
3. regeneration concrete small-sized hollow building block according to claim 1, is characterized in that, described regenerated coarse aggregate is new broken waste and old concrete; The particle diameter of described regenerated coarse aggregate is 5-10mm.
4. regeneration concrete small-sized hollow building block according to claim 1, is characterized in that, described Steel-slag Sand is selected from bessemer furnace slag; The fineness modulus of described bessemer furnace slag is 2.0-3.2; The particle diameter of described bessemer furnace slag is 0.5-5mm.
5. regeneration concrete small-sized hollow building block according to claim 1, is characterized in that, described normal sands is middle particle diameter common river sand; The fineness modulus of described middle particle diameter common river sand is 2.0-3.2; The particle diameter of described middle particle diameter common river sand is 0.5-5mm.
6., according to the making method of the arbitrary described regeneration concrete small-sized hollow building block of claim 1-5, comprise the following steps:
1), after component each in siccative being measured by weight, put into after stirrer stirs, then add water and water reducer uniform stirring, obtain mixed material;
2) by step 1) gained mixed material vibrates not extrusion forming, shaping rear demoulding, and carry out maintenance under field conditions (factors), obtain regeneration concrete small-sized hollow building block.
7. the making method of regeneration concrete small-sized hollow building block according to claim 6, is characterized in that, step 1) in, described water reducer is ACE308 high efficiency water reducing agent.
8. the making method of regeneration concrete small-sized hollow building block according to claim 6, is characterized in that, step 2) in, the condition of described natural curing is, curing temperature: 18-22 DEG C; Relative humidity: more than 95%; Curing time: 28 days.
9. according to the arbitrary described purposes of regeneration concrete small-sized hollow building block in construction material of claim 1-5.
10. purposes is the purposes of described regeneration concrete small-sized hollow building block in secondary structure or non-structural element according to claim 9.
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| CN105693151A (en) * | 2016-01-18 | 2016-06-22 | 同济大学 | Sea sand recycled concrete revetment brick and making method thereof |
| CN106316302A (en) * | 2016-08-30 | 2017-01-11 | 江苏美城建筑规划设计院有限公司 | C20-level self-compacting concrete with steel slag and recycled aggregates and preparation method of C20-level self-compacting concrete |
| CN108002790A (en) * | 2017-11-06 | 2018-05-08 | 同济大学 | A kind of method that humidity adjusting material is prepared using discarded concrete |
| CN108911596A (en) * | 2018-06-25 | 2018-11-30 | 浙江大学宁波理工学院 | Assembled regenerates small concrete block masonry and preparation method thereof entirely |
| CN109734472A (en) * | 2019-03-01 | 2019-05-10 | 南京工程学院 | A kind of basalt fibre slag concrete small-sized hollow building block and preparation method thereof |
| CN110357534A (en) * | 2019-07-31 | 2019-10-22 | 中建三局集团有限公司 | A kind of optimization regeneration concrete building-block and preparation method |
| CN112028564A (en) * | 2020-07-29 | 2020-12-04 | 同济大学 | By using CO2Recycled concrete block prepared from reinforced recycled powder |
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| CN105693151A (en) * | 2016-01-18 | 2016-06-22 | 同济大学 | Sea sand recycled concrete revetment brick and making method thereof |
| CN105693151B (en) * | 2016-01-18 | 2018-08-24 | 同济大学 | A kind of sea sand regeneration concrete revetment brick and preparation method thereof |
| CN106316302A (en) * | 2016-08-30 | 2017-01-11 | 江苏美城建筑规划设计院有限公司 | C20-level self-compacting concrete with steel slag and recycled aggregates and preparation method of C20-level self-compacting concrete |
| CN108002790A (en) * | 2017-11-06 | 2018-05-08 | 同济大学 | A kind of method that humidity adjusting material is prepared using discarded concrete |
| CN108002790B (en) * | 2017-11-06 | 2020-12-01 | 同济大学 | Method for preparing humidity-adjusting material by using waste concrete |
| CN108911596A (en) * | 2018-06-25 | 2018-11-30 | 浙江大学宁波理工学院 | Assembled regenerates small concrete block masonry and preparation method thereof entirely |
| CN109734472A (en) * | 2019-03-01 | 2019-05-10 | 南京工程学院 | A kind of basalt fibre slag concrete small-sized hollow building block and preparation method thereof |
| CN110357534A (en) * | 2019-07-31 | 2019-10-22 | 中建三局集团有限公司 | A kind of optimization regeneration concrete building-block and preparation method |
| CN112028564A (en) * | 2020-07-29 | 2020-12-04 | 同济大学 | By using CO2Recycled concrete block prepared from reinforced recycled powder |
| CN112028564B (en) * | 2020-07-29 | 2022-02-01 | 同济大学 | By using CO2Recycled concrete block prepared from reinforced recycled powder |
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