CN108585678A - A kind of high intensity radioresistance concrete - Google Patents
A kind of high intensity radioresistance concrete Download PDFInfo
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- CN108585678A CN108585678A CN201810448041.5A CN201810448041A CN108585678A CN 108585678 A CN108585678 A CN 108585678A CN 201810448041 A CN201810448041 A CN 201810448041A CN 108585678 A CN108585678 A CN 108585678A
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- concrete
- radioresistance
- high intensity
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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
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00258—Electromagnetic wave absorbing or shielding materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of high intensity radioresistance concrete.The high intensity radioresistance concrete includes 100 parts of cement, 30 45 parts of flyash, 20 35 parts of miberal powder, 15 30 parts of sodium metasilicate, 2.0 4.0 parts of boric anhydride, 8 15 parts of barium sulfate, 10 20 parts of boron modification silicone resin particles, 50 80 parts of fine aggregate, 70 110 parts of coarse aggregate, 60 75 parts of water in parts by weight.The concrete formulation of the present invention, which avoids boric anhydride incorporation, reduces the defect of concrete strength, while having good mechanical strength and radiation resistance.
Description
Technical field
The invention belongs to field of new materials, and coagulation earth concrete material is radiated in particular to a kind of high intensity radioresistance
Material.
Background technology
Today's society, with the economic fast development with science and technology, mobile communication, broadcast, radar, computer etc. have become as people
In daily life often in contact with things, their use to people's life bring convenience with it is quick while, make electromagnetic wave
Radiation becomes a kind of new social effects of pollution.Electromagnetic radiation can influence health, and can be caused to ambient electron instrument and equipment
Severe jamming；Electromagnetic radiation simultaneously can reveal information, make the instruments such as computer without security assurance information.For this purpose, many prosperity states
Family and international organization have all formulated corresponding regulation and standard.
Concrete refers to by cementitious material by the general designation for the cementing integral engineered composite material that gathers materials.The coagulation usually said
Soil material refers to making cementitious material with cement, and sand, masonry gather materials；Coordinate by a certain percentage with water, it is agitated, molding, maintenance and
The cement concrete obtained, it is widely used in civil engineering.
Radiation shield concrete is also known as shielding concrete, radiation-shielding concrete, and unit weight is larger, to gamma-rays, X-ray or in
Son radiates the substitute for the expensive anti-ray material such as being not easy to be penetrated, therefore be commonly used for lead, steel by radioactive ray with screening ability.
Boron is a kind of effective radiation protection element, and according to the viewpoint of Callan, 1% boron element is mixed in concrete,
Can be improved by absorbing the ability of thermal neutron by 100 times.And the content of boron element need not be very high in concrete, U.S. Oak Ridge laboratory
Once it has studied and concentrates borated concrete boron content 1% or so, the feed postition and volume of boron element can be solidifying to cement
Knot hardening and the mechanical property generation of concrete seriously affect, and《Radiation-proof high performance concrete material is studied》It is public in one text
It has opened and borax (NaB is added in concrete4O7·10H2O), boric anhydride (B2O3) and boron glass powder (main component SiO2、B2O3) three kinds
The effect of boron-containing additive, wherein boric anhydride is worst, and the intensity of Behavior of Hardened Cement Paste will reduce a quantity compared to pure water mudstone after addition
Grade or so.
Invention content
The object of the present invention is to provide a kind of new high intensity radioresistance concrete formulation containing boric anhydride, which has
Good mechanical property and anti-shielding properties.
In order to achieve the object of the present invention, for the present inventor by a large number of experiments research and unremitting effort, final acquisition is as follows
Technical solution：A kind of high intensity radioresistance concrete, the concrete include 100 parts of cement, flyash 30-45 in parts by weight
Part, 20-35 parts of miberal powder, 15-30 parts of sodium metasilicate, 2.0-4.0 parts of boric anhydride, 8-15 parts of barium sulfate, boron modification silicone resin particles
10-20 parts, 50-80 parts of fine aggregate, 70-110 parts of coarse aggregate, 60-75 parts of water.
It is further preferred that high intensity radioresistance concrete, the concrete include cement in parts by weight as described above
100 parts, 37-43 parts of flyash, 25-32 parts of miberal powder, 19-28 parts of sodium metasilicate, 2.5-3.5 parts of boric anhydride, 10-13 parts of barium sulfate, boron
13-18 parts of modified organic silicone resin particle, 58-75 parts of fine aggregate, 80-100 parts of coarse aggregate, 65-72 parts of water.
It is further preferred that high intensity radioresistance concrete, the concrete include cement in parts by weight as described above
100 parts, 40 parts of flyash, 28 parts of miberal powder, 23 parts of sodium metasilicate, 3.0 parts of boric anhydride, 12 parts of barium sulfate, boron modification organic siliconresin
18 parts of grain, 65 parts of fine aggregate, 90 parts of coarse aggregate, 68 parts of water.
It is further preferred that high intensity radioresistance concrete as described above, the boron modification silicone resin particles according to
It is prepared by following process：Boric acid and silicones is taken to be used as reactant, the mass ratio of boric acid and silicones is (10-12)：1, water consumption
For the 35-45% of water consumption needed for silicones complete hydrolysis, polymerisation is carried out at 80-90 DEG C, then at 350-420 DEG C
Heated 3-5h, obtains boron modification organic siliconresin.
It is further preferred that high intensity radioresistance concrete, the cement are portland cement, aluminic acid brine as described above
Mud or phosphate cement.
It is further preferred that high intensity radioresistance concrete, the miberal powder are S95 grades of miberal powders as described above.
It is further preferred that high intensity radioresistance concrete, the flyash are the above rank powder of second-level ash as described above
Coal ash.
It is further preferred that high intensity radioresistance concrete, the coarse aggregate are grain size 8.0-20.0mm stones as described above
Diamond stone.
It is further preferred that high intensity radioresistance concrete, the fine aggregate are grain size 0.08-4.0mm stones as described above
Sand.
The present invention also provides above-mentioned high intensity radioresistance preparation method of concrete, and this method comprises the following steps：
(1) raw material is weighed, under stiring, first by cement, flyash, miberal powder, barium sulfate, boron modification organic siliconresin
Grain, coarse aggregate, fine aggregate and 65-75% water be uniformly mixed；
(2) boric anhydride, sodium metasilicate and remaining water are added, continues to be stirred until homogeneous, obtains concrete mix, through pouring,
Jolt ramming, dehydration obtain high intensity radioresistance concrete.
The present invention compared with the existing technology, has the following technical effect that：
Concrete formulation of the present invention avoids the defect that the incorporation of boric anhydride makes concrete strength drastically reduce, while having good
Good radiation resistance；A boron element part is entered in the form of boric anhydride simultaneously, and another part is added as a resin, the two collaboration
Under improve the mechanical property of concrete, after obtained concrete sample conserves 28 days, compression strength is higher than 39.8MPa, resists
Folding intensity reaches 5.7MPa or more.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described with reference to embodiment, the following example is only used for
Illustrate the present invention, and should not be regarded as limiting protection scope of the present invention.In addition, particular technique operating procedure is not specified in embodiment
Or condition person, carried out according to technology or condition described in document in the art or according to product description.Examination used
Production firm person is not specified in agent or instrument, and being can be with conventional products that are commercially available.
(1) resistance to compression, flexural strength measure：According to GBJ81-85《Normal concrete mechanical property tests method》Measure coagulation
Native intensity.
Instrument：Italian 50-COO66/SOL3000KN concrete samples strength tester.
(2) concrete shield gamma-rays performance evaluation：The positive identity distance radioactive source 40cm of concrete slab, the back side away from detection instrument 5cm,
The absorbed dose rate of concrete slab is measured, then linear absorption rate is calculated through theory.
Instrument：60Co radioactive sources (activity 25.0mCi), detection instrument are FJ-47A type X- γ dosemeters.
It is prepared by 1 high intensity radioresistance concrete of embodiment：
(1) with 100 parts of portland cement (specific surface area 357m2/ kg) based on, the ingredient according to table 1 and its measurement
Each raw material；
(2) under stiring, cement, flyash, miberal powder, barium sulfate, boron modification organic siliconresin are added into blender
Grain, coarse aggregate, fine aggregate, 70% water be uniformly mixed；
(3) boric anhydride, sodium metasilicate and remaining water are added after, continues to be stirred until homogeneous obtained concrete mix, through pouring,
Jolt ramming, dehydration, obtain high intensity radioresistance concrete sample, and specimen size is 40mm × 40mm × 40mm.
1 concrete composition table of table
Coarse aggregate is average grain diameter 15.0mm quartzs in table, and fine aggregate is average grain diameter 2.3mm quartz sands, and miberal powder is
S95 grades of miberal powders, density 2790kg/m3, specific surface area 411m2/ kg, flyash grade are second-level ash；
The boron modification silicone resin particles are prepared as follows：Take boric acid with silicones as reactant, boron
The mass ratio of acid and silicones is 10：1, water consumption is 40% of water consumption needed for silicones complete hydrolysis, is carried out at 90 DEG C
Polymerisation, reaction time 4h, be then heated at 400 DEG C 3h, obtains boron modification organic siliconresin and is crushed to it so that
The boron modification silicone resin particles grain size arrived is less than 5mm.
To 5 groups of concrete curing in the mold obtained above rear form removal for 24 hours, after standard curing to 28d, mechanical property survey is carried out
It tries, the mechanical strength of the mechanical strength after 5 groups of obtained concrete seven d is as shown in table 2.
2 concrete mechanics intensity (MPa) of table
| Project | 1st group | 2nd group | 3rd group | 4th group | 5th group |
| Compression strength | 39.8 | 45.3 | 49.7 | 46.7 | 43.6 |
| Flexural strength | 5.7 | 6.2 | 6.8 | 6.6 | 5.9 |
Concrete shield gamma-rays performance evaluation is carried out to the concrete sample of the 1st group of preparation in table 1, is calculated pair60The linear absorption coefficient that Co gamma-rays absorbs is 0.2467, and the absorption coefficient of normal silicate concrete is only 0.1376,
It can be seen that the concrete that the present invention is prepared has good radiation resistance.
Embodiment 2
According to the concrete preparation process of embodiment 1, under the premise of constituent is constant, change each component content difference
For：(1) 100 parts of cement, 25 parts of flyash, 18 parts of miberal powder, 10 parts of sodium metasilicate, 1.5 parts of boric anhydride, 5 parts of barium sulfate, boron modification are organic
8 parts of silicones, 45 parts of fine aggregate, 65 parts of coarse aggregate, 55 parts of water；(2) 100 parts of cement, 50 parts of flyash, 40 parts of miberal powder, silicic acid
35 parts of sodium, 4.5 parts of boric anhydride, 20 parts of barium sulfate, 25 parts of boron modification organic siliconresin, 85 parts of fine aggregate, 115 parts of coarse aggregate, water 80
Part；And concrete sample obtained is detected and finds that the flexural strength of sample (1) is 5.2MPa, compression strength is
32.1MPa；The flexural strength of sample (2) is 4.7MPa, compression strength 28.6MPa.
Comparative example 1
On the basis of the 3rd group of ingredient and its preparation process are constant in embodiment 1, other constituent contents are constant, are not added with
Enter boron modification organic siliconresin, the concrete sample compression strength found only has 11.8MPa, flexural strength 1.4MPa.
Comparative example 2
On the basis of the 3rd group of ingredient and its preparation process are constant in embodiment 1, other constituent contents are constant, are not added with
Enter boric anhydride, concrete sample compression strength 32.1MPa, the flexural strength 5.3MPa found.
Comparative example 3
On the basis of the 3rd group of ingredient and its preparation process are constant in embodiment 1, other constituent contents are constant, by boron
The organic siliconresin of modified organic silicone resin same amount replaces, and finds the concrete sample compression strength being prepared
30.9MPa, flexural strength 5.2MPa.
Comparative example 4
On the basis of the 3rd group of ingredient and its preparation process are constant in embodiment 1, other constituent contents are constant, by boron
Modified organic silicone resin particle and boric anhydride are replaced with boron glass sand (grain size≤5mm, boron content 15%), the amount and boron of boron glass sand
Modified organic silicone resin particle and boric anhydride total amount are equal, find concrete sample compression strength 47.9MPa, the anti-folding being prepared
Intensity 6.7MPa.
Claims (10)
1. a kind of high intensity radioresistance concrete, which is characterized in that the concrete includes 100 parts of cement, powder in parts by weight
30-45 parts of coal ash, 20-35 parts of miberal powder, 15-30 parts of sodium metasilicate, 2.0-4.0 parts of boric anhydride, 8-15 parts of barium sulfate, boron modification organosilicon
10-20 parts of resin particle, 50-80 parts of fine aggregate, 70-110 parts of coarse aggregate, 60-75 parts of water.
2. high intensity radioresistance concrete according to claim 1, which is characterized in that the concrete includes in parts by weight
100 parts of cement, 37-43 parts of flyash, 25-32 parts of miberal powder, 19-28 parts of sodium metasilicate, 2.5-3.5 parts of boric anhydride, barium sulfate 10-13
Part, 13-18 parts of boron modification silicone resin particles, 58-75 parts of fine aggregate, 80-100 parts of coarse aggregate, 65-72 parts of water.
3. high intensity radioresistance concrete according to claim 2, which is characterized in that the concrete includes in parts by weight
100 parts of cement, 40 parts of flyash, 28 parts of miberal powder, 23 parts of sodium metasilicate, 3.0 parts of boric anhydride, 12 parts of barium sulfate, boron modification organosilicon tree
18 parts of fat particle, 65 parts of fine aggregate, 90 parts of coarse aggregate, 68 parts of water.
4. according to any one of the claim 1-3 high intensity radioresistance concrete, which is characterized in that the boron modification organosilicon
Resin particle is prepared as follows：Boric acid and silicones is taken to be used as reactant, the mass ratio of boric acid and silicones is (10-
12)：1, water consumption is the 35-45% of water consumption needed for silicones complete hydrolysis, polymerisation is carried out at 80-90 DEG C, then
Be heated 3-5h at 350-420 DEG C, obtains boron modification organic siliconresin.
5. according to any one of the claim 1-3 high intensity radioresistance concrete, which is characterized in that the cement is silicate
Cement, aluminate cement or phosphate cement.
6. according to any one of the claim 1-3 high intensity radioresistance concrete, which is characterized in that the miberal powder is S95 grades
Miberal powder.
7. according to any one of the claim 1-3 high intensity radioresistance concrete, which is characterized in that the flyash is two level
The above rank flyash of ash.
8. according to any one of the claim 1-3 high intensity radioresistance concrete, which is characterized in that the coarse aggregate is grain size
8.0-20.0mm quartz.
9. according to any one of the claim 1-3 high intensity radioresistance concrete, which is characterized in that the fine aggregate is grain size
0.08-4.0mm quartz sands.
10. a kind of any one of claim 1-9 high intensity radioresistance preparation method of concrete, it is characterised in that including as follows
Step：
(1) raw material is weighed, under stiring, first by cement, flyash, miberal powder, barium sulfate, boron modification silicone resin particles, thick
The water of aggregate, fine aggregate and 65-75% is uniformly mixed；
(2) boric anhydride, sodium metasilicate and remaining water are added, continues to be stirred until homogeneous, obtains concrete mix, through pouring, jolt ramming,
Dehydration, obtains high intensity radioresistance concrete.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810448041.5A CN108585678B (en) | 2018-05-11 | 2018-05-11 | High-strength radiation-resistant concrete |
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| CN201810448041.5A CN108585678B (en) | 2018-05-11 | 2018-05-11 | High-strength radiation-resistant concrete |
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| CN108585678B CN108585678B (en) | 2021-06-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109650801A (en) * | 2019-02-26 | 2019-04-19 | 西京学院 | A kind of strong concrete |
| CN113072341A (en) * | 2021-04-15 | 2021-07-06 | 杨荣飞 | Portland cement radiation-proof concrete and production process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104212347A (en) * | 2014-09-17 | 2014-12-17 | 江苏海晟涂料有限公司 | Boron-modified organic silicon resin high-temperature-resistant coating and preparation method thereof |
| CN105131828A (en) * | 2015-06-30 | 2015-12-09 | 蓬莱市特种绝缘材料厂 | Insulation impregnating varnish for nuclear power unit and preparation method of varnish |
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2018
- 2018-05-11 CN CN201810448041.5A patent/CN108585678B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104212347A (en) * | 2014-09-17 | 2014-12-17 | 江苏海晟涂料有限公司 | Boron-modified organic silicon resin high-temperature-resistant coating and preparation method thereof |
| CN105131828A (en) * | 2015-06-30 | 2015-12-09 | 蓬莱市特种绝缘材料厂 | Insulation impregnating varnish for nuclear power unit and preparation method of varnish |
Non-Patent Citations (2)
| Title |
|---|
| 李国刚: "防辐射高性能混凝土材料研究", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
| 高恒聚等: "《建筑材料》", 31 August 2012, 西安电子科技大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109650801A (en) * | 2019-02-26 | 2019-04-19 | 西京学院 | A kind of strong concrete |
| CN113072341A (en) * | 2021-04-15 | 2021-07-06 | 杨荣飞 | Portland cement radiation-proof concrete and production process thereof |
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