CN106699051B - A kind of concrete and its production method - Google Patents
A kind of concrete and its production method Download PDFInfo
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- CN106699051B CN106699051B CN201611110621.0A CN201611110621A CN106699051B CN 106699051 B CN106699051 B CN 106699051B CN 201611110621 A CN201611110621 A CN 201611110621A CN 106699051 B CN106699051 B CN 106699051B
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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
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/48—Metal
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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
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- 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
Abstract
The present invention provides a kind of concrete, its raw material includes following components: 20.6-25.5 parts of cement, 51.75-55 parts of quartz sand, 0.13-2.0 parts of polycarboxylate water-reducer pulvis, 6-8.32 parts of active blend, 0.06-0.07 parts of high molecular material, swelling agent 1.5-2.32 parts U-shaped, 6-8 parts of steel fibre mixture and 7.19-8.12 parts of water based on parts by weight.Mixed mud of the invention has the following characteristics that convenient for maintenance, has high compressive strength, high-durability, high tenacity, and porosity is low.The present invention also provides a kind of production methods of above-mentioned mixed mud, comprising the following steps: step 1: will obtain dry mix after cement, quartz sand, active blend, U-shaped swelling agent and steel fibre mixture according to the ratio dry mixing；Step 2: it proportionally is dissolved in the water polycarboxylate water-reducer pulvis and high molecular material to obtain mixed liquor；Dry mix and mixed liquor obtained by step 1 are stirred uniformly to get concrete.The method of the present invention integrated artistic is simplified, and technological parameter is easy to control, and obtained concrete component is convenient for maintenance.
Description
Technical field
The present invention relates to technical field of building construction, and in particular to a kind of concrete and its production method.
Background technique
Concrete, referred to as " concrete " refer to the general designation for the cementing integral engineered composite material that gathers materials by cementitious material.
One word of concrete usually said, which refers to, makees cementitious material with cement, and sand, masonry gather materials, and presses with water (can contain additive and admixture)
Certain proportion cooperation, it is agitated obtained by cement concrete.Common high-strength concrete flexural strength is poor, anti-folding and compression strength
Ratio is mostly in 1/8-1/20, and normal concrete compression strength is usually no more than 60MPa.
RPC concrete is exactly Reactive Powder Concrete (reactive powder concrete), it is the mid-90
What French Bouygues company Richard et al. was developed has superhigh intensity, height, high-durability and good volume stability
Cement-base composite material, it is obtained particular by such as under type: using fine sand as aggregate, mixing the blending of the mineral such as a large amount of silicon ashes
Material, high efficiency water reducing agent and micro steel fiber, weak interface are significantly reinforced, make energy to failure improve two orders of magnitude with
On.Although RPC concrete has high intensity and toughness, its curing condition is extremely harsh (to be needed using 100 DEG C or more
Steam is conserved), greatly limit its application range.
Concrete type is relatively more in the prior art, sees below:
Application No. is 201410555971.2 patent applications to disclose a kind of concrete, by cement, middle sand, aggregate,
Reinforcing fibre, additive and water mix, and each component mass parts are as follows: 300-450 parts of cement；Middle sand 650-800 parts；
780-900 parts of aggregate；10-20 parts of reinforcing fibre；4-8 parts of additive；180 parts -200 parts of water；The additive is by polycarboxylic-acid
35 parts of water-reducing agent, 6 parts of silane coupling agent, 3 parts of polyvinylpyrrolidone, 2 parts of silicon carbide, 8 parts of coated with silica titanium dioxide,
5 parts of jelly powder, 12 parts of bentonite, 10 parts of nano-carbon powder, 4 parts of sodium gluconate, 4 parts of acetate phenol mix.
A kind of concrete, including following raw material are disclosed application No. is 201410322447.0 patent application: cement,
Sand, rubble, waste calcining material, additive and water, the waste calcining material are made by following methods: by waste concrete and
Useless brick is mixed according to the mass ratio of 10:3, is crushed, is ground into flour less than 30mm, spare；Into the water by flour, 2-3 is steeped
It, then takes out drying；The flour of drying is calcined into 4-5h at 1000-1100 DEG C, ground, sieved after cooling, respectively
Taking partial size is the calcined product of 0.15-3mm and 5-10mm, for waste calcining material.
Application No. is 201410159369.7 patents of invention to disclose a kind of concrete, sand including conventional proportions, broken
Stone and cement, the cement are anticracking complex cement, and by weight, which includes: ordinary portland cement
100 parts；5~20 parts of iron powder；0.5~1.5 part of sulfurous acid sodium powder；10~30 parts of flyash.
The above concrete still cannot expire there are compression strength is low or not durable or low tenacity or the features such as function-specific property
The use demand of foot reality.In conclusion being badly in need of in industry a kind of convenient for maintenance and with high compressive strength, high-durability, height
The concrete of toughness and low porosity is to solve problems of the prior art.
Summary of the invention
The first object of the present invention be to provide convenient for maintenance and have high compressive strength, high-durability, high tenacity and
The concrete of low porosity, specific technical solution are as follows:
A kind of concrete, its raw material includes following components based on parts by weight:
0.13-2.0 parts of polycarboxylate water-reducer pulvis of 51.75-55 parts of quartz sand of 20.6-25.5 parts of cement
U-shaped swelling agent 1.5-2.32 parts of 0.06-0.07 parts of high molecular material of 6-8.32 parts of active blend
7.19-8.12 parts of water of 6-8 parts of steel fibre mixture.
Preferred in above technical scheme, the quartz sand is by the quartz sand of 10-20 mesh, the quartz sand of 20-40 mesh, 40-
The quartz sand of the quartz sand of 70 mesh and 70-120 mesh matching according to 17.08-20:24.5-26:3-9:3-5 based on parts by weight
Than mixing；
The active blend is by superfine silica powder, silicon powder and miberal powder based on parts by weight according to 0.93-1:4-5.12:1-
2.27 proportion mixes, wherein the superfine silica powder is the superfine silica powder that granularity is more than or equal to 1500 mesh, in the silicon powder
The content of silica is greater than 94%, the model S115 of the miberal powder；
The high molecular material is mixed according to the proportion of 0.05:0.01-0.02 based on parts by weight by defoaming agent and cellulose
It closes, wherein the model P803 of the defoaming agent；The viscosity of the cellulose ether is 400cP；
The steel fibre mixture is by end hook fashioned iron pricker peacekeeping copper facing steel fibre based on parts by weight according to 1-3:5-6.17
Proportion mix, wherein the diameter of the end hook type steel fibers be 0.6mm, the length is 30mm, tensile strength is greater than
1200MPa；The diameter of the copper facing steel fibre is 0.18-22mm, and the length is 12-13mm, tensile strength is greater than
2900MPa。
Preferred in above technical scheme, its raw material includes following components based on parts by weight:
22.28 parts of cement, 0.13 part of polycarboxylate water-reducer pulvis of 51.75 parts of quartz sand
2.32 parts of the U-shaped swelling agent of 8.32 parts of active blend, 0.06 part of high molecular material
7.75 parts of steel fibre mixture, 7.38 parts of water；
The quartz sand by the quartz sand of 10-20 mesh, the quartz sand of 20-40 mesh, 40-70 mesh quartz sand and 70-120
Purpose quartz sand is mixed according to the proportion of 17.08:24.88:6.22:3.57 based on parts by weight；
The active blend is by superfine silica powder, silicon powder and miberal powder based on parts by weight according to 0.93:5.12:2.27's
Proportion mixes；
The high molecular material by defoaming agent and cellulose based on parts by weight according to the proportion mixing of 0.05:0.01 and
At；
The steel fibre mixture is by end hook fashioned iron pricker peacekeeping copper facing steel fibre based on parts by weight according to 1.58:6.17's
Proportion mixes.
Preferred in above technical scheme, its raw material includes following components based on parts by weight:
20.6 parts of cement, 0.15 part of polycarboxylate water-reducer pulvis of 55 parts of quartz sand
2 parts of the U-shaped swelling agent of 8 parts of active blend, 0.06 part of high molecular material
8 parts of steel fibre mixture, 7.19 parts of water；
The quartz sand by the quartz sand of 10-20 mesh, the quartz sand of 20-40 mesh, 40-70 mesh quartz sand and 70-120
Purpose quartz sand is mixed according to the proportion of 18:25:9:3 based on parts by weight；
The active blend is mixed according to the proportion of 1:5:2 based on parts by weight by superfine silica powder, silicon powder and miberal powder
It forms；
The high molecular material by defoaming agent and cellulose based on parts by weight according to the proportion mixing of 0.05:0.01 and
At；
The steel fibre mixture is mixed according to the proportion of 2:5 based on parts by weight by end hook fashioned iron pricker peacekeeping copper facing steel fibre
It closes.
Preferred in above technical scheme, its raw material includes following components based on parts by weight:
25.5 parts of cement, 2.0 parts of polycarboxylate water-reducer pulvis of 53.5 parts of quartz sand
1.5 parts of the U-shaped swelling agent of 6 parts of active blend, 0.07 part of high molecular material
6 parts of steel fibre mixture, 8.12 parts of water；
The quartz sand by the quartz sand of 10-20 mesh, the quartz sand of 20-40 mesh, 40-70 mesh quartz sand and 70-120
Purpose quartz sand is mixed according to the proportion of 18:24.5:6:5 based on parts by weight；
The active blend is mixed according to the proportion of 1:5:2 based on parts by weight by superfine silica powder, silicon powder and miberal powder
It forms；
The high molecular material by defoaming agent and cellulose based on parts by weight according to the proportion mixing of 0.05:0.01 and
At；
The steel fibre mixture is mixed according to the proportion of 1:5 based on parts by weight by end hook fashioned iron pricker peacekeeping copper facing steel fibre
It closes.
Apply the technical scheme of the present invention, effect is specifically: using the cement of moderate strength class as base-material, raw material is easy
It obtains, and cost is reasonable；Using 10-20 mesh, 20-40 mesh, 40-70 mesh and 70-120 mesh quartz sand according to it is specific match into
Row blends, and forms the optimal combination of aggregate；Using polycarboxylate water-reducer pulvis, the unit dose of water-reducing agent is reduced, in minimum water
Glue improves workability than lower raising intensity and fluidity；Active blend is using superfine silica powder, silicon powder and miberal powder according to specific
Proportion combination, is sufficient filling with the gap in cement and frame material, improves the compactness of concrete to the full extent；Using by defoaming
The high molecular material that agent and cellulose are formed according to special ratios, for improving the density of concrete, changing the tough of concrete
Property and improve concrete flexural strength at normal temperature；The UEA type swelling agent using aluminum sulfate as expansion sources is used, coagulation is prevented
Microdilatancy is generated while soil cracking, to offset concrete shrinkage, so that concrete has zero to shrink, the heat of generation is avoided
Later period is the high-temperature steam curing for obtaining high breaking strength and compactness and needing；The present invention is used by end hook type steel fibers and copper facing
The steel flat flanges that steel fibre is mixed to get according to special ratios improve the flexural strength of concrete at normal temperature to the full extent.Cause
This, the present invention is formed using unique raw material and the design of unique formula, so that present invention gained concrete has following spy
Point: convenient for maintenance, there is high compressive strength, high-durability, high tenacity, porosity is low.
The second object of the present invention is to provide a kind of production method of concrete, comprising the following steps:
Step 1: cement, quartz sand, active blend, U-shaped swelling agent and steel fibre mixture are added by force according to the ratio
With the dry mix that obtains for rotation speed dry mixing 8-10 minutes of 2 seconds/circle in standard powder stirrer, dry mixing temperature is 5-35 DEG C；
Step 2: it proportionally is dissolved in the water polycarboxylate water-reducer pulvis and high molecular material to obtain mixed liquor；It will
Dry mix obtained by step 1 is transferred in horizontal-type biaxial rneader, and above-mentioned mixed liquor is added in horizontal-type biaxial rneader and is stirred
It mixes uniformly to get concrete, wherein mixing speed 1000-2000r/min, whipping temp are 20-30 DEG C.
Further include that pre-treatment step described in pre-treatment step is specifically to reach superior technique effect: the steel is fine
Dimension mixture needs to be sieved in screening machine before addition, and vibration frequency when screening is 120-150HZ, screening sieve
The size of mesh opening of son is 1.5 times of steel fibre diameter.
It further include post-processing step to reach superior technique effect, the post-processing step is specifically: by step 2
Gained concrete is vibrated in mold with the frequency of vibrating of 100HZ, up to concrete component after molding, then to concrete structure
Part carries out covering curing using plastic film or native canvas or carries out sprinkling maintenance using 5 DEG C -35 DEG C of water.
The method of the present invention integrated artistic is simplified, and technological parameter is easy to control, and obtained concrete component is answered convenient for maintenance
With in extensive range.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to specific embodiment, the present invention is described in further detail.
Specific embodiment
Technical solution of the present invention is described in detail below in conjunction with specific embodiment, but the present invention can be according to power
Benefit requires to limit and the multitude of different ways of covering is implemented.
Embodiment 1:
A kind of concrete, raw material include cement, quartz sand, polycarboxylate water-reducer pulvis, active blend, macromolecule material
Material, U-shaped swelling agent, steel fibre mixture and water, see Table 1 for details for proportion.
The cement use the ordinary portland cement moderate strength class of Zhong Cai cement Co., Ltd for 52.5 water
Mud.
The quartz sand is mixed by four kinds of 10-20 mesh, 20-40 mesh, 40-70 mesh and 70-120 purpose quartz sands,
See Table 2 for details for its specific proportion.
The polycarboxylate water-reducer pulvis is produced by Shanghai Sanrui Polymer Material Co., Ltd..
The active blend is mixed by superfine silica powder, silicon powder and miberal powder, and see Table 3 for details for proportion, in which: described
Superfine silica powder is the superfine silica powder that granularity is more than or equal to 1500 mesh, and the content of silica is described greater than 94% in the silicon powder
The model S115 of miberal powder.
The high molecular material is mixed by defoaming agent and cellulose, and proportion is shown in Table 4.Defoaming agent is by German AGITAN
Company's production, model P803；Cellulose ether is produced by Ruitai Cellulose Co Ltd, Tai'an, viscosity 400cP.
The steel fibre mixture is mixed by end hook fashioned iron pricker peacekeeping copper facing steel fibre, and see Table 5 for details for proportion,
In, the diameter of the end hook type steel fibers is 0.6mm, and the length is 30mm, tensile strength is greater than 1200MPa；The copper facing
The non-0.18-22mm of the diameter of steel fibre, the length is 12-13mm, tensile strength is greater than 2900MPa.
Its production method specifically includes the following steps:
Pre-treatment step, specifically: the steel fibre mixture needs to be sieved in screening machine before addition, sieve
The vibration frequency of timesharing is 120-150Hz, and the size of mesh opening of screening sieve is 1.5 times of steel fibre diameter；
Step 1: cement, quartz sand, active blend, U-shaped swelling agent and steel fibre mixture are added by force according to the ratio
With the dry mix that obtains for rotation speed dry mixing 8-10 minutes of 2 seconds/circle in standard powder stirrer, dry mixing temperature is 5-35 DEG C；
Step 2: it proportionally is dissolved in the water polycarboxylate water-reducer pulvis and high molecular material to obtain mixed liquor；It will
Dry mix obtained by step 1 is transferred in horizontal-type biaxial rneader, and above-mentioned mixed liquor is added in horizontal-type biaxial rneader and is stirred
It mixes uniformly to get concrete (being designated as sample 1), wherein mixing speed 1000-2000r/min, whipping temp are 20-30 DEG C.
Post-processing step, specifically: concrete obtained by step 2 is shaken in mold with the frequency of vibrating of 100Hz
It smashes, up to concrete component after molding, then covering curing is carried out or using 5 using plastic film or native canvas to concrete component
DEG C -35 DEG C of water carries out sprinkling maintenance.
See Table 6 for details for the maintenance method of the performance of sample 1 and the concrete component made of sample 1.
Embodiment 2- embodiment 5
See Table 1 for details for the raw material composition of embodiment 2- embodiment 5-table 5, the concrete of acquisition is denoted as sample 2- sample 5,
See Table 6 for details for the maintenance method of the performance of each sample and the concrete component made of each sample.
1 embodiment 1- embodiment of table, 5 raw material components and dosage statistical form
The type and dosage statistical form of the used quartz sand of 2 embodiment 1- embodiment of table 5
The composition and dosage statistical form of the used active blend of 3 embodiment 1- embodiment of table 5
The composition and dosage statistical form of the used high molecular material of 4 embodiment 1- embodiment of table 5
The composition and dosage statistical form of the used steel fibre of 5 embodiment 1- embodiment of table 5
6 sample 1- sample 5 of table, normal concrete, the performance of RPC concrete and respective members maintenance method statistical form
Using the concrete of 1- of embodiment of the present invention embodiment 5, have the effect that
(1) compression strength of concrete of the present invention reaches 94MPa-125MPa, and flexural strength reaches 26MPa-45MPa, resists
Intensity and compression strength ratio are rolled between 0.277-0.375, and toughness is apparently higher than normal concrete, and (normal concrete toughness is
0.1), also superior to RPC concrete (its toughness is about 0.19).
(2) impermeability of concrete of the present invention is strong, and impermeabilisation grade reaches S10-S14, and much higher than normal concrete, (it is anti-
Infiltration grade is S4)；Drying shrinkage is 0-0.5, is also significantly better than normal concrete, and is slightly weaker than RPC concrete.
(3) ratio and increase high molecular material (such as sample 1- sample by adjusting swelling agent of concrete of the present invention
5), ungauged regions after molding, do not crack, room temperature maintenance can be carried out, maintenance is convenient.
(4) present invention is mixed using two kinds of steel fibres according to special ratios, uses vibration frequency for 120-150HZ, sieve
Size of mesh opening is that 1.5 times of reciprocating sieve of steel fibre diameter solves the problems, such as to be easy conglomeration, mobility during concrete production
Reach 450-600mm, hence it is evident that be better than normal concrete and RPC concrete.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of concrete, which is characterized in that its raw material includes following components based on parts by weight:
The quartz sand is by the quartz sand of 10-20 mesh, the quartz sand of 20-40 mesh, the quartz sand of 40-70 mesh and 70-120 purpose
Quartz sand is mixed according to the proportion of 17.08-20:24.5-26:3-9:3-5 based on parts by weight；
The active blend is by superfine silica powder, silicon powder and miberal powder based on parts by weight according to 0.93-1:4-5.12:1-2.27
Proportion mix, wherein the superfine silica powder is the superfine silica powder that granularity is more than or equal to 1500 mesh, dioxy in the silicon powder
The content of SiClx is greater than 94%, the model S115 of the miberal powder；
The high molecular material is mixed according to the proportion of 0.05:0.01-0.02 based on parts by weight by defoaming agent and cellulose ether
It forms, wherein the model P803 of the defoaming agent；The viscosity of the cellulose ether is 400cP；
The steel fibre mixture is by end hook fashioned iron pricker peacekeeping copper facing steel fibre matching according to 1-3:5-6.17 based on parts by weight
Than mixing, wherein the diameter of the end hook type steel fibers is 0.6mm, and the length is 30mm, tensile strength is greater than
1200MPa；The diameter of the copper facing steel fibre is 0.18-22mm, and the length is 12-13mm, tensile strength is greater than
2900MPa。
2. concrete according to claim 1, which is characterized in that its raw material includes following components based on parts by weight:
The quartz sand is by the quartz sand of 10-20 mesh, the quartz sand of 20-40 mesh, the quartz sand of 40-70 mesh and 70-120 purpose
Quartz sand is mixed according to the proportion of 17.08:24.88:6.22:3.57 based on parts by weight；
The active blend is by superfine silica powder, silicon powder and miberal powder based on parts by weight according to the proportion of 0.93:5.12:2.27
It mixes；
The high molecular material is mixed according to the proportion of 0.05:0.01 based on parts by weight by defoaming agent and cellulose；
The steel fibre mixture is by end hook fashioned iron pricker peacekeeping copper facing steel fibre based on parts by weight according to the proportion of 1.58:6.17
It mixes.
3. concrete according to claim 1, which is characterized in that its raw material includes following components based on parts by weight:
The quartz sand is by the quartz sand of 10-20 mesh, the quartz sand of 20-40 mesh, the quartz sand of 40-70 mesh and 70-120 purpose
Quartz sand is mixed according to the proportion of 18:25:9:3 based on parts by weight；
The active blend is mixed according to the proportion of 1:5:2 based on parts by weight by superfine silica powder, silicon powder and miberal powder；
The high molecular material is mixed according to the proportion of 0.05:0.01 based on parts by weight by defoaming agent and cellulose；
The steel fibre mixture by end hook fashioned iron pricker peacekeeping copper facing steel fibre based on parts by weight according to 2:5 proportion mixing and
At.
4. concrete according to claim 1, which is characterized in that its raw material includes following components based on parts by weight:
The quartz sand is by the quartz sand of 10-20 mesh, the quartz sand of 20-40 mesh, the quartz sand of 40-70 mesh and 70-120 purpose
Quartz sand is mixed according to the proportion of 18:24.5:6:5 based on parts by weight；
The active blend is mixed according to the proportion of 1:5:2 based on parts by weight by superfine silica powder, silicon powder and miberal powder；
The high molecular material is mixed according to the proportion of 0.05:0.01 based on parts by weight by defoaming agent and cellulose；
The steel fibre mixture by end hook fashioned iron pricker peacekeeping copper facing steel fibre based on parts by weight according to 1:5 proportion mixing and
At.
5. a kind of production method of the concrete as described in claim 1-4 any one, which comprises the following steps:
Step 1: forced action type is added in cement, quartz sand, active blend, U-shaped swelling agent and steel fibre mixture according to the ratio
With the dry mix that obtains for rotation speed dry mixing 8-10 minutes of 2 seconds/circle in powder stirrer, dry mixing temperature is 5-35 DEG C；
Step 2: it proportionally is dissolved in the water polycarboxylate water-reducer pulvis and high molecular material to obtain mixed liquor；By step
The one dry mix of gained is transferred in horizontal-type biaxial rneader, and above-mentioned mixed liquor is added in horizontal-type biaxial rneader and is stirred
It is even to get concrete, wherein mixing speed 1000-2000r/min, whipping temp be 20-30 DEG C.
6. the production method of concrete according to claim 5, which is characterized in that further include pre-treatment step, before described
Processing step is specifically: the steel fibre mixture needs to be sieved in screening machine before addition, vibration when screening
Frequency is 120-150Hz, and the size of mesh opening of screening sieve is 1.5 times of steel fibre diameter.
7. the production method of concrete according to claim 5, which is characterized in that further include post-processing step, after described
Processing step is specifically: concrete obtained by step 2 being vibrated in mold with the frequency of vibrating of 100Hz, after molding to obtain the final product
Concrete component, then to concrete component using plastic film or native canvas carry out covering curing or using 5 DEG C -35 DEG C water into
Row sprinkling maintenance.
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| CN112624673B (en) * | 2020-12-23 | 2022-08-23 | 杭州余杭恒力混凝土有限公司 | High-substitution-rate recycled aggregate concrete and preparation process thereof |
| CN112830719A (en) * | 2021-01-19 | 2021-05-25 | 上海望实建筑工程有限公司 | Preparation method of active powder concrete slab |
| CN113860811A (en) * | 2021-10-27 | 2021-12-31 | 广东鑫隆管业有限公司 | Preparation process of high-strength composite material |
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| CN103224356A (en) * | 2013-02-07 | 2013-07-31 | 黄贺明 | Green environmentally-friendly powder reinforced concrete water delivery pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102320789A (en) * | 2011-08-29 | 2012-01-18 | 四川西南交大铁路发展有限公司 | High-strength active powder concrete and preparation method |
| CN103224356A (en) * | 2013-02-07 | 2013-07-31 | 黄贺明 | Green environmentally-friendly powder reinforced concrete water delivery pipe |
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Address after: 410200 No. 168, Second Section of Yanhe Road, Wangcheng Economic and Technological Development Zone, Changsha City, Hunan Province Co-patentee after: LOUDI CITY LOUXING URBAN CONSTRUCTION INVESTMENT DEVELOPMENT Co.,Ltd. Patentee after: Hunan Lianzhi Technology Co.,Ltd. Co-patentee after: LOUDI TRAFFIC TRANSPORT BUREAU Address before: 410200 Wangcheng Economic Development Zone, Hunan, Changsha Co-patentee before: LOUDI CITY LOUXING URBAN CONSTRUCTION INVESTMENT DEVELOPMENT Co.,Ltd. Patentee before: HUNAN LIANZHI BRIDGE AND TUNNEL TECHNOLOGY Co.,Ltd. Co-patentee before: LOUDI TRAFFIC TRANSPORT BUREAU |