CN107417209A - A kind of high-strength heat-resisting concrete - Google Patents
A kind of high-strength heat-resisting concrete Download PDFInfo
- Publication number
- CN107417209A CN107417209A CN201710738239.2A CN201710738239A CN107417209A CN 107417209 A CN107417209 A CN 107417209A CN 201710738239 A CN201710738239 A CN 201710738239A CN 107417209 A CN107417209 A CN 107417209A
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- strength
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- concrete
- heat resistance
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Classifications
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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
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/22—Glass ; Devitrified glass
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/141—Slags
- C04B18/142—Steelmaking slags, converter slags
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to building material technical field, and in particular to a kind of high-strength heat-resisting concrete, include the raw material of following parts by weight：30~40 parts of cement, 110~140 parts of stainless steel electroslag, 3~4 parts of silicon ash, 1~3 part of lead-free glass powder with low melting point.The defects of compression strength and low residual strength being present for current refractory concrete, the invention provides a kind of high high-strength heat-resisting concrete of residual flexural strength at elevated temperature, it is used as admixture, stainless steel electroslag as aggregate by mixing lead-free glass powder with low melting point, makes the high-strength heat-resisting concrete with high residual strength.Present invention process is simple, excellent performance, application easy to spread, possesses significant economic and social benefit.The present invention is remarkably improved the compression strength and residual strength of heat resistance concrete, and present invention process is simple, excellent performance, application easy to spread, possesses significant economic and social benefit.
Description
Technical field
The invention belongs to building material technical field, and in particular to a kind of high-strength heat-resisting concrete.
Background technology
Heat resistance concrete is that one kind can bear high temperature action (more than 200 DEG C) for a long time, and under high temperature action needed for holding
Physical and mechanical property special concrete.Heat resistance concrete is mainly used in Industrial Stoves basis, shell, chimney and atomic energy pressure
Force container etc., bear for a long time outside high temperature action, the temperature change repeatedly that can also bear heating cooling is made.Common tradition is mixed
Solidifying soil is the binder materials being made up of cement, and sand, masonry are aggregate, adds the artificial stone that admixture, additive etc. are formulated
Material, after environment temperature is more than 300 DEG C, its intensity drastically declines, and this is due to that hydrated product in Behavior of Hardened Cement Paste divides at high temperature
Solution dehydration, lattice structure is by broken reason., can be anxious containing quartzite and gathering materials for limestone when temperature reaches 600~800 DEG C
Play expands and produces chemical breakdown, also significantly reduces concrete strength.So general solidifying native normal use temperature is not to be exceeded
250℃.Therefore, normal concrete can not meet these engineering requirements, and must use heat resistance concrete.
Refractory concrete generally use cement or waterglass is as binder materials at present, using broken magnesia brick, magnesite clinker,
Fire resisting brickbat, chamotte etc. are aggregate, although this kind of concrete is resistant to 800 high temperature, common intensity is relatively low, usually less than
C20；Fire resisting queen closer, broken magnesia brick etc. are that coarse aggregate porosity is big, water imbibition is strong simultaneously, such as increase water consumption, can also reduce it
Intensity.Heat resistance concrete universal residual flexural strength at elevated temperature is not high at present in addition, during general 200~500 DEG C of scopes about
35~45% in 50~70% or so of design strength grade, 500~900 DEG C of scopes about in design strength grade are left
The right side, it is unfavorable for its endurance quality.Therefore at present also there are many problems in refractory concrete when in use.
The content of the invention
The defects of compression strength and low residual strength being present for current refractory concrete, the invention provides a kind of high temperature
The high-strength heat-resisting concrete of remaining High anti bending strength afterwards, to solve the above problems.
What the present invention was realized in：
The high-strength heat-resisting concrete of the present invention includes the raw material of following parts by weight：30~40 parts of cement, stainless steel electric furnace
110~140 parts of slag, 3~4 parts of silicon ash, 1~3 part of lead-free glass powder with low melting point.
Wherein cement is 42.5 or 42.5R Portland cements.
The stainless steel electroslag be EAF Steelmaking Process in byproduct, 0.075~5mm of its grain diameter, wherein
0.63m is accumulative to be tailed between 60~70%.
The specific surface area of the silicon ash is 20~28m2/ g, wherein fineness account for more than 80% less than 1 μm, and average grain diameter exists
0.1~0.3 μm.
For the fineness of the glass powder with low melting point between 1 μm~10 μm, fusing point is 400~700 DEG C.
The heat resistance concrete also includes the raw material of following parts by weight：Water 15-20 parts.
0.075~5mm stainless steel electroslag forms skeleton as fine aggregate, 1 μm~10 μm glass powder with low melting point with more
Thin silicon ash and the good powder of slightly thick cement composition grading, in the skeleton of the good powder packed fine aggregate composition of grading
Between, the compound of densification is formed, water consumption is reduced while mobility is improved, improves intensity.
Lead-free glass powder with low melting point has relatively low fusion temperature (usual fusing point can be in 400~700 DEG C of scopes) and sealing-in
Temperature, good heat resistance and chemical stability, high mechanical strength, and be widely used in vacuum and microelectric technique, swash
The various fields such as light and infrared technique, high-energy physics, the energy, aerospace, automobile.It can be achieved between glass, ceramics, metal, semiconductor
Mutual sealing-in.Stainless steel electroslag is caused waste residue in producing stainless steel process, is mostly the glass of size 2~5mm scopes
Glass spheroid, it is mingled with part filamentous glass fiber, chemical composition has higher hardness, be not easy based on silica and magnesia
Grinding.The present invention using lead-free glass powder with low melting point its bond vitrified between 400~700 DEG C the characteristics of, as admixture, utilize
Contain filamentous glass fiber, hardness height is not easy the stainless steel electroslag that grinds as aggregate, prepare the high-strength temperature-resistant of high residual strength
Concrete.
The invention has the advantages that：It is used as admixture, stainless steel electroslag as bone by mixing glass powder with low melting point
Material, makes the high-strength heat-resisting concrete with high residual strength.Present invention process is simple, excellent performance, application easy to spread,
Possesses significant economic and social benefit.The present invention is remarkably improved the compression strength after heat resistance concrete high temperature and remnants are strong
Degree, present invention process is simple, excellent performance, application easy to spread, possesses significant economic and social benefit.
Embodiment
Embodiment 1：
Take 32 kilograms of cement, 120 kilograms of stainless steel electroslags, 3.5 kilograms of silicon ashes, and 1 kilogram of glass powder with low melting point (city
Sell).Above-mentioned siccative is well mixed, 16 kilograms of water is added and stirs, just obtain heat resistance concrete of the present invention.Not
It is 52.6MPa through compression strength during high temperature, compression strength is 40.6MPa under 500 DEG C of high temperature, and compression strength is under 800 DEG C of high temperature
29.1MPa, i.e., the residual strength rate 77% at 500 DEG C, the residual strength rate 55% at 800 DEG C.
Embodiment 2：
Take 40 kilograms of cement, 130 kilograms of stainless steel electroslags, 4 kilograms of silicon ashes, and 2 kilograms of glass powder with low melting point.Will be upper
State siccative to be well mixed, add 20 kilograms of water and stir, just obtain heat resistance concrete of the present invention.During without high temperature
Compression strength is 53.8MPa, and compression strength is 44.2MPa under 500 DEG C of high temperature, and compression strength is 34.7MPa under 800 DEG C of high temperature,
Residual strength rate 82% at i.e. 500 DEG C, the residual strength rate 64% at 800 DEG C.
The present invention uses stainless steel electroslag as aggregate, the SiO containing higher proportion2And MgO, hardness is high, is stainless steel
Slag caused by production process, energy high temperature resistant, therefore heat-resisting quantity and intensity and abrasion resistance can be improved as aggregate, while with eutectic
Point glass dust is admixture, and fusing point is in 400~700 DEG C of scopes, and at normal temperatures, the small glass dust of these fineness is as calking material
Material, makes concrete more closely knit, when the temperature increases, glass powder with low melting point melting, makes concrete component in height as Binder Phase
It is combined together under temperature, while liquid phase can also flow into hole and be allowed to fine and close, improve the intensity of concrete at high temperature.
Although the foregoing describing the embodiment of the present invention, those familiar with the art should manage
Solution, the specific embodiment described by us are merely exemplary, rather than for the restriction to the scope of the present invention, are familiar with this
The equivalent modification and change that the technical staff in field is made in the spirit according to the present invention, should all cover the present invention's
In scope of the claimed protection.
Claims (6)
- A kind of 1. heat resistance concrete, it is characterised in that：Include the raw material of following parts by weight：30~40 parts of cement, stainless steel electricity 110~140 parts of clinker, 3~4 parts of silicon ash, 1~3 part of lead-free glass powder with low melting point.
- 2. heat resistance concrete according to claim 1, it is characterised in that：The cement is the common silicic acid of 42.5 or 42.5R Salt cement.
- 3. heat resistance concrete according to claim 1, it is characterised in that：The grain diameter of the stainless steel electroslag is 0.075~5mm.
- 4. heat resistance concrete according to claim 1, it is characterised in that：The specific surface area of the silicon ash is 20~28m2/ g, Wherein fineness accounts for more than 80% less than 1 μm, and average grain diameter is at 0.1~0.3 μm.
- 5. heat resistance concrete according to claim 1, it is characterised in that：The fineness of the lead-free glass powder with low melting point is in 1 μ Between m~10 μm, fusing point is 400~700 DEG C.
- 6. heat resistance concrete according to claim 1, it is characterised in that：The heat resistance concrete also includes following parts by weight Several raw materials：Water 15-20 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710738239.2A CN107417209B (en) | 2017-08-25 | 2017-08-25 | High-strength heat-resistant concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710738239.2A CN107417209B (en) | 2017-08-25 | 2017-08-25 | High-strength heat-resistant concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107417209A true CN107417209A (en) | 2017-12-01 |
| CN107417209B CN107417209B (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710738239.2A Active CN107417209B (en) | 2017-08-25 | 2017-08-25 | High-strength heat-resistant concrete |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109574596A (en) * | 2019-01-19 | 2019-04-05 | 江苏盛达飞建筑材料有限公司 | A kind of high-strength heat-resisting concrete and preparation method thereof |
| CN112608127A (en) * | 2020-12-18 | 2021-04-06 | 湖北工业大学 | Aqueous manganese carbonate slag-based liquid cementing material and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105130291A (en) * | 2015-07-21 | 2015-12-09 | 桂林理工大学 | Preparation method of active glass powder mixture material |
| CN105198303A (en) * | 2015-08-13 | 2015-12-30 | 上海中冶环境工程科技有限公司 | Heat-resistant concrete and preparation method thereof |
-
2017
- 2017-08-25 CN CN201710738239.2A patent/CN107417209B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105130291A (en) * | 2015-07-21 | 2015-12-09 | 桂林理工大学 | Preparation method of active glass powder mixture material |
| CN105198303A (en) * | 2015-08-13 | 2015-12-30 | 上海中冶环境工程科技有限公司 | Heat-resistant concrete and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109574596A (en) * | 2019-01-19 | 2019-04-05 | 江苏盛达飞建筑材料有限公司 | A kind of high-strength heat-resisting concrete and preparation method thereof |
| CN112608127A (en) * | 2020-12-18 | 2021-04-06 | 湖北工业大学 | Aqueous manganese carbonate slag-based liquid cementing material and preparation method and application thereof |
| CN112608127B (en) * | 2020-12-18 | 2022-06-21 | 湖北工业大学 | Aqueous manganese carbonate slag-based liquid cementing material and preparation method and application thereof |
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| Publication number | Publication date |
|---|---|
| CN107417209B (en) | 2020-05-05 |
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Effective date of registration: 20190228 Address after: 350100, 3rd floor 304-A47, Pioneer Building, Haixi High-tech Industrial Park, Fuzhou High-tech Zone, Fujian Province Applicant after: Fujian Academy of Architectural Sciences Co., Ltd. Address before: 350000 162 Yang Bridge Middle Road, Fuzhou, Fujian Applicant before: Fujian Academy of Building Research |
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