CN110526640A - A kind of ultra-high performance concrete and preparation method thereof using solid-state castoff production - Google Patents
A kind of ultra-high performance concrete and preparation method thereof using solid-state castoff production Download PDFInfo
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- CN110526640A CN110526640A CN201910723835.2A CN201910723835A CN110526640A CN 110526640 A CN110526640 A CN 110526640A CN 201910723835 A CN201910723835 A CN 201910723835A CN 110526640 A CN110526640 A CN 110526640A
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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
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
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Abstract
The present invention relates to a kind of ultra-high performance concretes and preparation method thereof using solid-state castoff production, and ultra-high performance concrete comprises the following components in parts by weight: 28~33 parts of P·O52.5 ordinary portland cement, 5~7 silicon ashes, 2~3 parts of flyash, 12~15 parts of quartz sand powders, 5~7 parts of waste stone dusts, 18~23 parts of quartz sands, 9~11 parts of barren rock fine aggregates, 6~7 parts of water, 1.4~1.7 parts of polycarboxylate water-reducers, 5~7 parts of steel fibres, it realizes chats rationally to reuse, avoids the chats pollution environment that a large amount of minings generate.
Description
Technical field
The present invention relates to a kind of ultra-high performance concretes and preparation method thereof using solid-state castoff production.
Background technique
With the development of human society, natural resources are constantly consumed, on the one hand, natural resources are constantly reduced, quartzy sand material
Material cost constantly increases, and ultra-high performance concrete holds at high price, and is not easy to promote, and on the other hand, produces a large amount of solid-state
Waste pollution environment is badly in need of digestion process.The chats that mining generates, material capability is close with quartzite, passes through
Selected processing can be used for preparing ultra-high performance concrete.
Chats is selected to replace aggregate of the quartz sand as ultra-high performance concrete, it is necessary to select parent rock intensity height, inhale
Water rate is small, just can guarantee that ultra-high performance concrete performance reaches standard requirements.The chats of selection has to pass through broken sieve
Point, suitable grade is sub-elected, product could be prepared according to the proportion of ultra-high performance concrete.
Summary of the invention
A technical problem to be solved by this invention is: providing a kind of replacement of utilization solid-state castoff part quartzy sand material
The ultra-high performance concrete for expecting production reduces production cost while not only having ensure that ultra-high performance concrete performance itself, but also real
The reasonable recycling of waste is showed.
In order to solve the above technical problems, the technical scheme is that
A kind of ultra-high performance concrete produced using solid-state castoff, the ultra-high performance concrete includes following parts by weight
Component:
Portland cement 28.0~33.0；
Silicon ash 5.0~7.0；
Flyash 2.0~3.0；
Quartz sand powder 12.0~15.0；
Waste stone dust 5.0~7.0；
Quartz sand 18.0~23.0；
Barren rock fine aggregate 9.0~11.0；
Water 6.0~7.0；
Polycarboxylate water-reducer 1.4~1.7；
Steel fibre 5.0~7.0.
The portland cement is PO52.5 ordinary portland cement as a preferred technical solution,
The flyash uses level-one flyash as a preferred technical solution, improves late strength of concrete.
As a preferred technical solution, the barren rock fine aggregate include partial size be 0.63~1.25mm barren rock fine aggregate and
Partial size is the barren rock fine aggregate of 1.25~2.5mm, the barren rock fine aggregate and the partial size that the partial size is 0.63mm~1.25mm
It is uniformly mixed for the barren rock fine aggregate of 1.25~2.5mm according to 1:1.7.
By production practices, barren rock fine aggregate of the partial size between 0.63~1.25mm and partial size 1.25~2.5mm it
Between barren rock fine aggregate mixed according to the ratio uniform of 1:1.7, intensity that ultra-high performance concrete obtained reaches is high and steady
Fixed, the intensity of obtained ultra-high performance concrete can achieve 120MPa.
Barren rock particle of the waste stone dust by partial size less than 0.63mm is ground as a preferred technical solution,.
The waste stone dust partial size is 0.045~0.16mm as a preferred technical solution,.
Another technical problem to be solved by this invention is: providing a kind of superelevation for being prepared by solid-state castoff production
The method of performance concrete guarantees that the performance of the ultra-high performance concrete obtained is stablized.
In order to solve the above technical problems, the technical scheme is that
A method of the ultra-high performance concrete produced using solid-state castoff is prepared, comprising steps of
1) high-strength low-absorption chats is chosen；
2) sand making machine sand；
3) barren rock fine aggregate is screened, the barren rock fine aggregate of 9.0~11.0 parts by weight is weighed；
4) barren rock particle of the partial size greater than 2.5mm of step 3) screening repeats step 2, and the partial size of screening is useless less than 0.63mm
Stone particle enters grinder grinding and waste stone dust is made, and weighs the waste stone dust of 5.0~7.0 parts by weight；
5) by the waste stone dust of 5.0~7.0 parts by weight, the barren rock fine aggregate of 9.0~11.0 parts by weight and 28.0~33.0 parts by weight
P·O52.5 ordinary portland cement, the silicon ash of 5.0~7.0 parts by weight, the level-one flyash of 2.0~3.0 parts by weight, 12.0
The quartz sand powder of~15.0 parts by weight, the quartz sand of 18.0~23.0 parts by weight, the water of 6.0~7.0 parts by weight, 1.4~1.7 weights
The steel fibre of the polycarboxylate water-reducer, 5.0~7.0 parts by weight of measuring part prepares dry-mixed ultra-high performance concrete.
Intensity is carried out to different chats using strength of cement mortar test in step 1) as a preferred technical solution,
Detection, prepares fine aggregate for different chats, is configured to sample to be tested according to the granularity of normal sand, by sample to be tested and together
A cement carries out molding cement mortar strength detection according to GB/T17671-1999, chooses the high chats of intensity and is inhaled again
The detection of water rate.
As a preferred technical solution, step 5) specifically includes the following steps:
1) by the P of 28.0~33.0 parts by weight·O52.5 ordinary portland cement, the silicon ash of 5.0~7.0 parts by weight, 2.0~3.0
The level-one flyash of parts by weight, the quartz sand powder of 12.0~15.0 parts by weight, 5.0~7.0 parts by weight waste stone dust force stir
Stirring 1min in machine is mixed to mix；
2) water of 6.0~7.0 parts by weight is added, stirs 1min；
3) polycarboxylate water-reducer that 1.4~1.7 parts by weight are added stirs 7min；
4) the barren rock fine aggregate of 9.0~11.0 parts by weight, the quartz sand of 18.0~23.0 parts by weight, 5.0~7.0 parts by weight is added
Steel fibre stir 4min；
5) mold is poured into, closely knit, receipts face is shaken；
6) it conserves, obtains ultra-high performance concrete.
The maintenance of the step 6) is to be transferred to steam box, 90 DEG C of maintenances after overlay film conserves 1d as a preferred technical solution,
48h。
By adopting the above-described technical solution, a kind of ultra-high performance concrete produced using solid-state castoff, described super
High performance concrete includes following components by weight: 28.0~33.0 parts of P·O52.5 ordinary portland cement, 5.0~7.0 silicon
Ash, 2.0~3.0 parts of flyash, 12.0~15.0 parts of quartz sand powders, 5.0~7.0 parts of waste stone dusts, 18.0~23.0 parts of quartz sands,
9.0~11.0 parts of barren rock fine aggregates, 6.0~7.0 parts of water, 1.4~1.7 parts of polycarboxylate water-reducers, 5.0~7.0 parts of steel fibres；One
The preparation method for the ultra-high performance concrete that kind is produced using solid-state castoff, 1) choose high-strength low-absorption chats；
2) sand making machine sand；3) barren rock fine aggregate is screened, and is weighed by the parts by weight；4) partial size of step 3) screening is greater than 2.5mm
Barren rock particle repeat step 2, the barren rock particle of the partial size of screening less than 0.63mm enters grinder grinding and waste stone dust is made,
And it is weighed by the parts by weight；5) by load weighted waste stone dust, barren rock fine aggregate and load weighted P·O52.5 normal silicate water
Mud, silicon ash, level-one flyash, quartz sand powder, quartz sand, water, polycarboxylate water-reducer, steel fibre prepare dry-mixed very-high performance coagulation
Soil, obtained the utility model has the advantages that 1, select chats replace aggregate of the quartz sand as ultra-high performance concrete, do not consume
Natural resources has simultaneously carried out reasonable recycling to chats, avoids the chats pollution that a large amount of minings generate
Environment reduces production cost without influencing the performance of ultra-high performance concrete, so that ultra-high performance concrete price is reduced,
Be conducive to promote the use of；2, using first P·O52.5 ordinary portland cement, silicon ash, flyash, quartz sand powder, waste stone dust exist
Stirring 1min is mixed in forced stirrer, and water is added, and stirs 1min, then addition polymerization carboxylic acid water reducer stirs 7min, is eventually adding useless
Stone fine aggregate, quartz sand, steel fibre stir 4min, pour into the mold of preparation, shake closely knit, overlay film maintenance 1d behind receipts face, turn
Enter steam box, 90 DEG C of maintenance 48h, preparation method paddle body uniform abundant package aggregate after mixing, intensity index after hardening
It can achieve the intensity index of ultra-high performance concrete.
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 without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the flow diagram for the method that the embodiment of the present invention prepares very-high performance coagulation figure.
Specific embodiment
Embodiment one:
A kind of ultra-high performance concrete produced using solid-state castoff, the ultra-high performance concrete includes following parts by weight
Component:
Portland cement 28.0；
Silicon ash 5.0；
Flyash 2.0；
Quartz sand powder 12.0；
Waste stone dust 5.0；
Quartz sand 18.0；
Barren rock fine aggregate 9.0；
Water 6.0；
Polycarboxylate water-reducer 1.4；
Steel fibre 5.0.
The portland cement is PO52.5 ordinary portland cement
The flyash uses level-one flyash, improves late strength of concrete.
The barren rock fine aggregate includes the barren rock fine aggregate that partial size is 0.63~1.25mm and partial size is 1.25~2.5mm's
Barren rock fine aggregate, the barren rock that the barren rock fine aggregate and the partial size that the partial size is 0.63mm~1.25mm are 1.25~2.5mm
Fine aggregate is uniformly mixed according to 1:1.7.
By production practices, barren rock fine aggregate of the partial size between 0.63~1.25mm and partial size 1.25~2.5mm it
Between barren rock fine aggregate mixed according to the ratio uniform of 1:1.7, intensity that ultra-high performance concrete obtained reaches is high and steady
Fixed, the intensity of obtained ultra-high performance concrete can achieve 120MPa.
Barren rock particle of the waste stone dust by partial size less than 0.63mm is ground.
The waste stone dust partial size is 0.045~0.16mm.
A method of the ultra-high performance concrete produced using solid-state castoff is prepared, comprising steps of
1) high-strength low-absorption chats is chosen；
2) sand making machine sand；
3) barren rock fine aggregate is screened, the barren rock fine aggregate of 9.0 parts by weight is weighed；
4) barren rock particle of the partial size greater than 2.5mm of step 3) screening repeats step 2, and the partial size of screening is useless less than 0.63mm
Stone particle enters grinder grinding and waste stone dust is made, and weighs the waste stone dust of 5.0 parts by weight；
5) by the waste stone dust of 5.0 parts by weight, the P of the barren rock fine aggregate of 9.0 parts by weight and 28.0 parts by weight·The common silicic acid of O52.5
Salt cement, the silicon ash of 5.0 parts by weight, the level-one flyash of 2.0 parts by weight, the quartz sand powder of 12.0 parts by weight, 18.0 parts by weight
Quartz sand, the water of 6.0 parts by weight, the polycarboxylate water-reducer of 1.4 parts by weight, 5.0 parts by weight steel fibre prepare dry-mixed superelevation
Performance concrete.
Intensity detection is carried out to different chats using strength of cement mortar test in step 1), different mines is given up
Detailed information aggregate made of stones, is configured to sample to be tested according to the granularity of normal sand, by sample to be tested and same a cement according to GB/
T17671-1999 carries out molding cement mortar strength detection, chooses the high chats of intensity and carries out water absorption rate detection again.
Step 5) specifically includes the following steps:
1) by the P of 28.0 parts by weight·The level-one fine coal of O52.5 ordinary portland cement, the silicon ash of 5.0 parts by weight, 2.0 parts by weight
Ash, the quartz sand powder of 12.0 parts by weight, 5.0 parts by weight waste stone dust stirred in forced stirrer 1min mixing；
2) water of 6.0 parts by weight is added, stirs 1min；
3) polycarboxylate water-reducer that 1.4 parts by weight are added stirs 7min；
4) be added the barren rock fine aggregate of 9.0 parts by weight, the quartz sand of 18.0 parts by weight, 5.0 parts by weight steel fibre stir 4min；
5) mold is poured into, closely knit, receipts face is shaken；
6) it conserves, obtains ultra-high performance concrete.
The maintenance of the step 6) is to be transferred to steam box, 90 DEG C of maintenance 48h after overlay film conserves 1d.
Embodiment two:
A kind of ultra-high performance concrete produced using solid-state castoff, the ultra-high performance concrete includes following parts by weight
Component:
Portland cement 30.0；
Silicon ash 6.0；
Flyash 2.5；
Quartz sand powder 13.5；
Waste stone dust 6.0；
Quartz sand 20.0；
Barren rock fine aggregate 10.0；
Water 6.5；
Polycarboxylate water-reducer 1.5；
Steel fibre 6.0.
The portland cement is P·O52.5 ordinary portland cement
The flyash uses level-one flyash, improves late strength of concrete.
The barren rock fine aggregate includes the barren rock fine aggregate that partial size is 0.63~1.25mm and partial size is 1.25~2.5mm's
Barren rock fine aggregate, the barren rock that the barren rock fine aggregate and the partial size that the partial size is 0.63mm~1.25mm are 1.25~2.5mm
Fine aggregate is uniformly mixed according to 1:1.7.
By production practices, barren rock fine aggregate of the partial size between 0.63~1.25mm and partial size 1.25~2.5mm it
Between barren rock fine aggregate mixed according to the ratio uniform of 1:1.7, intensity that ultra-high performance concrete obtained reaches is high and steady
Fixed, the intensity of obtained ultra-high performance concrete can achieve 120MPa.
Barren rock particle of the waste stone dust by partial size less than 0.63mm is ground.
The waste stone dust partial size is 0.045~0.16mm.
A method of the ultra-high performance concrete produced using solid-state castoff is prepared, comprising steps of
1) high-strength low-absorption chats is chosen；
2) sand making machine sand；
3) barren rock fine aggregate is screened, the barren rock fine aggregate of 10.0 parts by weight is weighed；
4) barren rock particle of the partial size greater than 2.5mm of step 3) screening repeats step 2, and the partial size of screening is useless less than 0.63mm
Stone particle enters grinder grinding and waste stone dust is made, and weighs the waste stone dust of 6.0 parts by weight；
5) by the waste stone dust of 6.0 amount parts, the P of the barren rock fine aggregate of 10.0 parts by weight and 30.0 parts by weight·O52.5 normal silicate
Cement, the silicon ash of 6.0 parts by weight, the level-one flyash of 2.5 parts by weight, the quartz sand powders of 13.5 parts by weight, 20.0 parts by weight
Quartz sand, the water of 6.5 parts by weight, the polycarboxylate water-reducer of 1.5 parts by weight, 6.0 parts by weight steel fibre prepare dry-mixed superelevation
It can concrete.
Intensity detection is carried out to different chats using strength of cement mortar test in step 1), different mines is given up
Detailed information aggregate made of stones, is configured to sample to be tested according to the granularity of normal sand, by sample to be tested and same a cement according to GB/
T17671-1999 carries out molding cement mortar strength detection, chooses the high chats of intensity and carries out water absorption rate detection again.
Step 5) specifically includes the following steps:
1) by the P of 30.0 parts by weight·The level-one fine coal of O52.5 ordinary portland cement, the silicon ash of 6.0 parts by weight, 2.5 parts by weight
Ash, the quartz sand powder of 13.5 parts by weight, 6.0 parts by weight waste stone dust stirred in forced stirrer 1min mixing；
2) water of 6.5 parts by weight is added, stirs 1min；
3) polycarboxylate water-reducer that 1.5 parts by weight are added stirs 7min；
4) the steel fibre stirring of the barren rock fine aggregate of 10.0 parts by weight, the quartz sand of 20.0 parts by weight, 6.0 parts by weight is added
4min；
5) mold is poured into, closely knit, receipts face is shaken；
6) it conserves, obtains ultra-high performance concrete.
The maintenance of the step 6) is to be transferred to steam box, 90 DEG C of maintenance 48h after overlay film conserves 1d.
Embodiment three:
A kind of ultra-high performance concrete produced using solid-state castoff, the ultra-high performance concrete includes following parts by weight
Component:
Portland cement 33.0；
Silicon ash 7.0；
Flyash 3.0；
Quartz sand powder 15.0；
Waste stone dust 7.0；
Quartz sand 23.0；
Barren rock fine aggregate 11.0；
Water 7.0；
Polycarboxylate water-reducer 1.7；
Steel fibre 7.0.
The portland cement is P·O52.5 ordinary portland cement
The flyash uses level-one flyash, improves late strength of concrete.
The barren rock fine aggregate includes the barren rock fine aggregate that partial size is 0.63~1.25mm and partial size is 1.25~2.5mm's
Barren rock fine aggregate, the barren rock that the barren rock fine aggregate and the partial size that the partial size is 0.63mm~1.25mm are 1.25~2.5mm
Fine aggregate is uniformly mixed according to 1:1.7.
By production practices, barren rock fine aggregate of the partial size between 0.63~1.25mm and partial size 1.25~2.5mm it
Between barren rock fine aggregate mixed according to the ratio uniform of 1:1.7, intensity that ultra-high performance concrete obtained reaches is high and steady
Fixed, the intensity of obtained ultra-high performance concrete can achieve 120MPa.
Barren rock particle of the waste stone dust by partial size less than 0.63mm is ground.
The waste stone dust partial size is 0.045~0.16mm.
A method of the ultra-high performance concrete produced using solid-state castoff is prepared, comprising steps of
1) high-strength low-absorption chats is chosen；
2) sand making machine sand；
3) barren rock fine aggregate is screened, the barren rock fine aggregate of 11.0 parts by weight is weighed；
4) barren rock particle of the partial size greater than 2.5mm of step 3) screening repeats step 2, and the partial size of screening is useless less than 0.63mm
Stone particle enters grinder grinding and waste stone dust is made, and weighs the waste stone dust of 7.0 parts by weight；
5) by the waste stone dust of 7.0 parts by weight, the P of the barren rock fine aggregate of 11.0 parts by weight and 33.0 parts by weight·The common silicic acid of O52.5
Salt cement, the silicon ash of 7.0 parts by weight, the level-one flyash of 3.0 parts by weight, the quartz sand powder of 15.0 parts by weight, 23.0 parts by weight
Quartz sand, the water of 7.0 parts by weight, the polycarboxylate water-reducer of 1.7 parts by weight, 7.0 parts by weight steel fibre prepare dry-mixed superelevation
Performance concrete.
Intensity detection is carried out to different chats using strength of cement mortar test in step 1), different mines is given up
Detailed information aggregate made of stones, is configured to sample to be tested according to the granularity of normal sand, by sample to be tested and same a cement according to GB/
T17671-1999 carries out molding cement mortar strength detection, chooses the high chats of intensity and carries out water absorption rate detection again.
Step 5) specifically includes the following steps:
1) by the P of 33.0 parts by weight·The level-one fine coal of O52.5 ordinary portland cement, the silicon ash of 7.0 parts by weight, 3.0 parts by weight
Ash, the quartz sand powder of 15.0 parts by weight, 7.0 parts by weight waste stone dust stirred in forced stirrer 1min mixing；
2) water of 7.0 parts by weight is added, stirs 1min；
3) polycarboxylate water-reducer that 1.7 parts by weight are added stirs 7min；
4) the steel fibre stirring of the barren rock fine aggregate of 11.0 parts by weight, the quartz sand of 23.0 parts by weight, 7.0 parts by weight is added
4min；
5) mold is poured into, closely knit, receipts face is shaken；
6) it conserves, obtains ultra-high performance concrete.
The maintenance of the step 6) is to be transferred to steam box, 90 DEG C of maintenance 48h after overlay film conserves 1d.
The above shows and describes the basic principle, main features and advantages of the invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. a kind of ultra-high performance concrete produced using solid-state castoff, which is characterized in that the ultra-high performance concrete packet
Include the component of following parts by weight:
Portland cement 28.0~33.0；
Silicon ash 5.0~7.0；
Flyash 2.0~3.0；
Quartz sand powder 12.0~15.0；
Waste stone dust 5.0~7.0；
Quartz sand 18.0~23.0；
Barren rock fine aggregate 9.0~11.0；
Water 6.0~7.0；
Polycarboxylate water-reducer 1.4~1.7；
Steel fibre 5.0~7.0.
2. a kind of ultra-high performance concrete produced using solid-state castoff as described in claim 1, it is characterised in that: described
Portland cement is P·O52.5 ordinary portland cement.
3. a kind of ultra-high performance concrete produced using solid-state castoff as described in claim 1, it is characterised in that: described
Flyash is level-one flyash.
4. a kind of ultra-high performance concrete produced using solid-state castoff as described in claim 1, it is characterised in that: described
The barren rock fine aggregate that barren rock fine aggregate includes the barren rock fine aggregate that partial size is 0.63~1.25mm and partial size is 1.25~2.5mm,
The barren rock fine aggregate that the barren rock fine aggregate and the partial size that the partial size is 0.63mm~1.25mm are 1.25~2.5mm is according to 1:
1.7 uniformly mixing.
5. a kind of ultra-high performance concrete produced using solid-state castoff as described in claim 1, it is characterised in that: described
Barren rock particle of the waste stone dust by partial size less than 0.63mm is ground.
6. a kind of ultra-high performance concrete produced using solid-state castoff as described in claim 1, it is characterised in that: described
Waste stone dust partial size is 0.045~0.16mm.
7. a kind of superelevation produced using solid-state castoff prepared as described in claim 1 to 6 any one claim
The method of energy concrete, which is characterized in that comprising steps of
Choose high-strength low-absorption chats；
Sand making machine sand；
Screen two particle size ranges of 0.63~1.25mm and 1.25~2.5mm barren rock fine aggregate, partial size for 0.63mm~
The barren rock fine aggregate of 1.25mm and partial size are that the barren rock fine aggregate of 1.25~2.5mm is uniformly mixed according to 1:1.7, weigh 9.0~
The mixed barren rock fine aggregate of 11.0 parts by weight；
Barren rock particle of the partial size greater than 2.5mm of step 3) screening repeats step 2, and the partial size of screening is less than the barren rock of 0.63mm
Particle enters grinder grinding and waste stone dust is made, and weighs the waste stone dust of 5.0~7.0 parts by weight；
By the waste stone dust of 5.0~7.0 parts by weight, the barren rock fine aggregate of 9.0~11.0 parts by weight and 28.0~33.0 parts by weight
P·O52.5 ordinary portland cement, the silicon ash of 5.0~7.0 parts by weight, the level-one flyash of 2.0~3.0 parts by weight, 12.0~
The quartz sand powder of 15.0 parts by weight, the quartz sand of 18.0~23.0 parts by weight, the water of 6.0~7.0 parts by weight, 1.4~1.7 weight
The polycarboxylate water-reducer of part, the steel fibre of 5.0~7.0 parts by weight prepare dry-mixed ultra-high performance concrete.
8. such as the preparation method for the ultra-high performance concrete using solid-state castoff production that claim 6 is stated, it is characterised in that:
Intensity detection is carried out to different chats using strength of cement mortar test in step 1).
9. such as the preparation method for the ultra-high performance concrete using solid-state castoff production that claim 6 is stated, which is characterized in that
Step 5) specifically includes the following steps:
By the P of 28.0~33.0 parts by weight·O52.5 ordinary portland cement, the silicon ash of 5.0~7.0 parts by weight, 2.0~3.0 weights
Measure the level-one flyash of part, the quartz sand powder of 12.0~15.0 parts by weight, 5.0~7.0 parts by weight waste stone dust in action of forced stirring
Stirring 1min is mixed in machine；
The water of 6.0~7.0 parts by weight is added, stirs 1min；
The polycarboxylate water-reducer that 1.4~1.7 parts by weight are added stirs 7min；
Be added the barren rock fine aggregates of 9.0~11.0 parts by weight, 18.0~23.0 parts by weight quartz sands, 5.0~7.0 parts by weight steel
Fiber stirs 4min；
Mold is poured into, closely knit, receipts face is shaken；
Maintenance, obtains ultra-high performance concrete.
10. as claimed in claim 8 using the preparation method of the ultra-high performance concrete of solid-state castoff production, feature exists
In: the maintenance of the step 6) is to be transferred to steam box, 90 DEG C of maintenance 48h after overlay film conserves 1d.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111892311A (en) * | 2020-07-01 | 2020-11-06 | 广东建设职业技术学院 | Composite cementing material for ecological high-performance concrete and use method thereof |
| CN114315285A (en) * | 2022-01-25 | 2022-04-12 | 山东大元实业股份有限公司 | Method for producing dry-mixed mortar by using industrial solid wastes |
| CN114438841A (en) * | 2022-01-29 | 2022-05-06 | 中国矿业大学 | Prefabricated slab structure laid on mine pavement and construction method thereof |
| CN114716199A (en) * | 2022-01-26 | 2022-07-08 | 山东大元实业股份有限公司 | Method for preparing ultra-high performance concrete by utilizing industrial solid wastes |
| CN114804776A (en) * | 2022-05-18 | 2022-07-29 | 广州大学 | Method for preparing ultra-high performance concrete by using waste common fibers |
-
2019
- 2019-08-07 CN CN201910723835.2A patent/CN110526640A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111892311A (en) * | 2020-07-01 | 2020-11-06 | 广东建设职业技术学院 | Composite cementing material for ecological high-performance concrete and use method thereof |
| CN114315285A (en) * | 2022-01-25 | 2022-04-12 | 山东大元实业股份有限公司 | Method for producing dry-mixed mortar by using industrial solid wastes |
| CN114716199A (en) * | 2022-01-26 | 2022-07-08 | 山东大元实业股份有限公司 | Method for preparing ultra-high performance concrete by utilizing industrial solid wastes |
| CN114438841A (en) * | 2022-01-29 | 2022-05-06 | 中国矿业大学 | Prefabricated slab structure laid on mine pavement and construction method thereof |
| CN114804776A (en) * | 2022-05-18 | 2022-07-29 | 广州大学 | Method for preparing ultra-high performance concrete by using waste common fibers |
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Application publication date: 20191203 |