CN106007539B - A kind of internal curing of cement-based materials agent and its preparation and application - Google Patents
A kind of internal curing of cement-based materials agent and its preparation and application Download PDFInfo
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- CN106007539B CN106007539B CN201610371566.4A CN201610371566A CN106007539B CN 106007539 B CN106007539 B CN 106007539B CN 201610371566 A CN201610371566 A CN 201610371566A CN 106007539 B CN106007539 B CN 106007539B
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- 239000004568 cement Substances 0.000 title claims abstract description 65
- 239000000463 material Substances 0.000 title claims abstract description 61
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 28
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 28
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000010457 zeolite Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 230000008602 contraction Effects 0.000 claims abstract description 23
- 239000000843 powder Substances 0.000 claims abstract description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000006004 Quartz sand Substances 0.000 claims abstract description 9
- 239000002245 particle Substances 0.000 claims abstract description 7
- 239000011148 porous material Substances 0.000 claims abstract description 5
- 230000009467 reduction Effects 0.000 claims abstract description 5
- 239000010881 fly ash Substances 0.000 claims description 7
- 239000002893 slag Substances 0.000 claims description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000002956 ash Substances 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 4
- 229920005646 polycarboxylate Polymers 0.000 claims description 3
- -1 vinal Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 claims 1
- 238000003837 high-temperature calcination Methods 0.000 abstract description 6
- 238000005336 cracking Methods 0.000 abstract description 4
- 238000012986 modification Methods 0.000 abstract description 2
- 230000004048 modification Effects 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 7
- 239000004567 concrete Substances 0.000 description 6
- 238000005259 measurement Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003467 diminishing effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 239000010754 BS 2869 Class F Substances 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000005354 coacervation Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Classifications
-
- 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
- C04B14/047—Zeolites
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention belongs to cement-based material technical field of modification, more particularly to a kind of internal curing of cement-based materials agent and its preparation and application.The interior curing agent is made of natural zeolite, and the natural zeolite particle diameter is 0.075 0.850mm, and pore volume is 0.05 0.50ml/g.Its preparation method is：It is first that natural zeolite is levigate, then through high-temperature calcination, water is added after being cooled down under dry environment and is stood, porous zeolite powder is absorbed water saturation, obtain the interior curing agent.The present invention uses the pre- water suction porous zeolite powder after high-temperature calcination to substitute the quartz sand in cement-based material in right amount, both the intensity of cement-based material had been ensure that, the reduction of contraction distortion is realized again, the comprehensive performance of cement-based material is improved, is particularly suitable for requiring the fields such as high road deck, deck paving to deformation and cracking.
Description
Technical field
The invention belongs to cement-based material technical field of modification, more particularly to a kind of internal curing of cement-based materials agent and its system
Standby and application.
Background technology
When cement-based material is shunk, due to surrounding enviroment or the effect of contraction of connector, can produce a certain amount of drawing should
Power, when the tension exceedes the tensile strength of material, crack initially forms.The contraction of cement-based material is to cause structure or structure
One of the main reason for part cracks.Component in cracking state can significantly reduce structure entire load-carrying capacity, in addition, crack
Occur so that water and other chemical mediators such as deicer salts etc., quickly pass through protective layer and directly contacted with reinforcing bar, so as to cause steel
Muscle corrosion, reinforced concrete structure deterioration.
Contraction distortion is usually proportional with the humidity decline inside cement-based material, and environmental drying and hydrated cementitious are
Two main causes for causing humidity to decline.When ambient humidity is less than material internal humidity, material internal moisture evaporation, shrinks
Increase, that is, dry contraction；Moisture loss caused by hydrated cementitious consumption cement-based material internal moisture is also self-desiccation, phase
The contraction answered is referred to as self-constriction.In order to reduce the contraction of cement-based material, compensate or slow down its internal humidity decline particularly
It is crucial.Using pre- water suction lightweight aggregate as the water storage element of inside concrete, moisture is constantly provided during concrete drying
It is a kind of effective way for reducing concrete self-shrinkage；But the particle diameter of pre- water suction lightweight aggregate is generally higher than 4mm, in high-strength cement material
In material and do not apply to.In addition, can also reduce the contraction of cement-based material using high hydroscopic resin, but additional bore can be produced again at the same time
Gap, causes concrete strength to reduce.Therefore, a kind of new interior curing agent is found to be particularly important, can be in cement-based material
Moisture is constantly provided in drying process, its self-constriction is reduced and is shunk with dry, and the obvious of cement-based material intensity will not be caused
Reduce.
The content of the invention
The present invention provides a kind of internal curing of cement-based materials agent and its preparation and application, concrete technical scheme are as follows：
A kind of internal curing of cement-based materials agent：It is made of natural zeolite, the natural zeolite particle diameter is 0.075-
0.850mm, pore volume 0.05-0.50ml/g.
A kind of preparation method of internal curing of cement-based materials agent as described above, comprises the following steps：
(1) by natural zeolite it is levigate to particle size range be 0.075-0.850mm；
(2) levigate obtained zeolite powder is calcined into more than 30min under the conditions of 400-600 DEG C；
(3) cooled down under dry environment, add water and simultaneously stand more than 3 days, zeolite powder is absorbed water saturation, obtain described interior support
Protect agent.
Application of the curing agent in terms of cement-based material contraction is reduced in as described above：By 10%- in cement-based material
30% fine aggregate with etc. the interior curing agent of quality substitute, and mix with other components, stirring shaping, obtains contraction distortion and reduce
Cement-based material.It is fine that the other components include cement, flyash, silicon ash, slag, zeolite powder, quartz sand, polyvinyl alcohol
Dimension, water, polycarboxylate water-reducer.
The present invention has the following advantages：
The present invention uses the pre- water suction porous zeolite powder after high-temperature calcination to substitute the quartz sand in cement-based material in right amount, both
It ensure that the intensity of cement-based material, and realize the reduction of contraction distortion, improve the comprehensive performance of cement-based material, effectively
Solve the problems, such as that conventional cement sill contraction distortion is big, reduce the cracking risk of structure or component, so as to improve water
The durability of cement-based material, is particularly suitable for requiring the fields such as high road deck, deck paving to deformation and cracking.
Brief description of the drawings
Fig. 1 is the contraction distortion measuring device schematic diagram of the embodiment of the present invention.
Embodiment
The present invention is further elaborated with reference to specific embodiment, but is not intended to limit protection scope of the present invention.
Cement used be 42.5 grades of sulphate aluminium cements in various embodiments of the present invention, and flyash is I grade of Class F fly ash of country, silicon ash
SiO2Content is 90%, and slag is S95 grades of granulated blast-furnace slags, quartz sand particle size 0.075-0.15mm.
Water-reducing agent used is the poly- carboxylic of I types of PCA- of Jiangsu Su Bote new materials company production in various embodiments of the present invention
Sour water-reducing agent, the water-reducing agent are light brown liquid, density 1.07g/cm3, solid content 30%, pH value 6-8, alkali content≤
0.2%, water-reducing rate 30%, has good compatibility with different cultivars cement and admixture；
Zeolite powder used is produced by Zunhua City of Hebei province Ke Daotunjin sources bentonite factory in various embodiments of the present invention, is put down
Equal particle diameter is 0.18mm, pore volume 0.26ml/g；
Vinal used is produced by Amada Co., Ltd.'s Kuraray in various embodiments of the present invention, the length of
12mm, a diameter of 39 μm, density 1.2g/cm3, tensile strength 1620MPa, elasticity modulus 42.8GPa.
In addition to above-mentioned specified otherwise, raw material used is commercially available in various embodiments of the present invention.
Fig. 1 is the contraction distortion measuring device schematic diagram that the present invention uses, and uses the related ginseng of device measurement contraction distortion
Several processes is as follows：
Free Transform and internal humiture measurement mechanism are as shown in the figure.Test specimen uses organic glass mould pouring molding, ruler
Very little is 100 × 100 × 400mm, in the adherent preset organic glass thin slice liner plate extracted of the die inside surrounding, cement matrix
After material cast before initial set, the preset liner plate of test specimen surrounding is extracted, test specimen is in unconfined free deformation, is tried after shaping
Part size is 60 × 100 × 400mm.The lateral Free Transform of cement-based material uses two branch linear deformation-sensors coaxially to surveying,
Precision is 1 μm, range 2mm.Inside humiture at test specimen center uses digital temperature-humidity sensor Simultaneous Monitoring, measurement
Precision is respectively 0.5 DEG C and 2%RH, and temperature measurement range is -10~60 DEG C, and moisture measurement scope is 0~100%.During experiment,
Temperature Humidity Sensor is positioned in the pvc pipe that internal diameter is 15mm to aid in it to be positioned at test specimen center, pvc pipe bottom sheet
Sealing with stop cement mortar poured in from tube bottom and prevent vapor from tube bottom into pipe continue coacervation.In the nearly bottom side wall of pvc pipe
The discontinuous ring-band shape rectangular opening of two sections of 3mm wide is opened, ensures the heat and water of sensor and test specimen central spot part concrete
Point exchange, other positions polymer sealant seal construction confined space, so that its internal humiture can rapid and surrounding
Humiture reaches balance in local cement-based material pore.
Embodiment 1
The cement-based material of curing agent, composed of the following components according to parts by weight in being filled in the present embodiment：Cement 808,
Flyash 115, silicon ash 115, slag 115, zeolite powder 192, quartz sand 769, vinal 24, water 231, polycarboxylic acids diminishing
Agent 37.
The cement-based material of curing agent in admixture is prepared according to following steps：
(1) by natural zeolite it is levigate to average grain diameter be 0.18mm；
(2) 500 DEG C of levigate zeolite powder 30min of high-temperature calcination；
(3) cooled down under dry environment, add water and stand more than 3 days, make zeolite powder water suction saturation；
(4) the interior curing agent of the quality such as in cement-based material 20% fine aggregate use is substituted, and is mixed with other components,
Stirring shaping, obtains the cement-based material of contraction distortion reduction.
The cement-based material each group partition rate data of curing agent is as shown in table 1 in prepared admixture.
Embodiment 2
The cement-based material of curing agent, composed of the following components according to parts by weight in being filled in the present embodiment：Cement 808,
Flyash 115, silicon ash 115, slag 115, zeolite powder 144, quartz sand 817, vinal 24, water 231, polycarboxylic acids diminishing
Agent 37.
The cement-based material of curing agent in admixture is prepared according to following steps：
(1) by natural zeolite it is levigate to average grain diameter be 0.18mm；
(2) 500 DEG C of levigate zeolite powder 30min of high-temperature calcination；
(3) cooled down under dry environment, add water and stand more than 3 days, make zeolite powder water suction saturation；
(4) the interior curing agent of the quality such as in cement-based material 15% fine aggregate use is substituted, and is mixed with other components,
Stirring shaping, obtains the cement-based material of contraction distortion reduction.
The cement-based material each group partition rate data of curing agent is as shown in table 1 in prepared admixture.
Embodiment 3 (control group)
Cement-based material in the present embodiment as a control group, is not spiked with interior curing agent, according to parts by weight by following components
Composition：Cement 808, flyash 115, silicon ash 115, slag 115, zeolite powder 0, quartz sand 961, vinal 24, water
231st, polycarboxylate water-reducer 37.
Prepared cement-based material each group partition rate data is as shown in table 1.
Each embodiment component proportion data (kg/m of table 13)
Embodiment 4
To the cement-based material prepared in embodiment 1-3, the test of specific performance index has been carried out respectively, and contraction distortion is surveyed
Trial assembly, which is put, sees Fig. 1, and the results are shown in Table 2.
2 cement-based material specific performance test index of table
The a kind of of the present invention is used to reduce interior curing agent of cement-based material contraction and preparation method thereof, solves traditional water
The problem of cement-based material contraction distortion is big, by using the method for the pre- water suction porous zeolite powder after high-temperature calcination, selection is closed
The pre- water suction zeolite powder of suitable ratio substitutes the quartz sand in cement-based material, and the cement-based material using the present invention has reached as follows
Particular technique index：
(1) it is good to go out machine workability for cement-based material；
(2) 100mm cubic compressive strengths up to 75MPa and more than；
Inside relative humidity of cement base material improves 18.4-25.4% within (3) 28 days；
Contraction distortion value reduces 46.7-54.6% within (4) 28 days.
Claims (3)
1. a kind of internal curing of cement-based materials agent, is made of, its feature exists the natural zeolite that pore volume is 0.05-0.50ml/g
In being prepared through following steps：
(1) by natural zeolite it is levigate to particle size range be 0.075-0.850mm；
(2) levigate obtained zeolite powder is calcined into more than 30min under the conditions of 400-600 DEG C；
(3) cooled down under dry environment, add water and stand more than 3 days, made zeolite powder water suction saturation, obtain the interior maintenance
Agent.
2. application of the internal curing of cement-based materials agent in terms of cement-based material contraction is reduced described in claim 1, its feature
It is, the interior curing agent of the quality such as the fine aggregate use of 10%-30% in cement-based material is substituted, and is mixed with other components,
Stirring shaping, obtains the cement-based material of contraction distortion reduction.
3. application according to claim 2, it is characterised in that the other components include cement, flyash, silicon ash, ore deposit
Slag, quartz sand, vinal, water, polycarboxylate water-reducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610371566.4A CN106007539B (en) | 2016-05-30 | 2016-05-30 | A kind of internal curing of cement-based materials agent and its preparation and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610371566.4A CN106007539B (en) | 2016-05-30 | 2016-05-30 | A kind of internal curing of cement-based materials agent and its preparation and application |
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| Publication Number | Publication Date |
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| CN106007539A CN106007539A (en) | 2016-10-12 |
| CN106007539B true CN106007539B (en) | 2018-04-20 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106542786A (en) * | 2016-10-08 | 2017-03-29 | 深圳海龙建筑科技有限公司 | Self-curing concrete and its production method |
| CN108929082A (en) * | 2018-07-05 | 2018-12-04 | 清华大学 | A kind of lower shrinkage super high strength concrete |
| CN111377653B (en) * | 2018-12-31 | 2021-12-17 | 江苏苏博特新材料股份有限公司 | Efficient anti-cracking agent for cement concrete and preparation method and application thereof |
| CN110734255A (en) * | 2019-10-31 | 2020-01-31 | 中建材料技术研究成都有限公司 | Low-self-contraction high-toughness cement-based composite material and preparation method thereof |
| CN110963737B (en) * | 2019-12-19 | 2021-12-24 | 厦门路桥翔通建材科技有限公司 | Organic modified foamed stone concrete internal curing agent and preparation method and application thereof |
| CN111187017A (en) * | 2020-01-08 | 2020-05-22 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Porous active internal curing admixture |
| CN111943547B (en) * | 2020-03-28 | 2021-10-22 | 长江大学 | Method for preparing cement-based material carbonization internal curing agent through surface hydrophobic modification |
| CN113185243B (en) * | 2021-04-15 | 2023-04-07 | 河南理工大学 | Low-viscosity low-shrinkage ultrahigh-performance concrete repairing material and using method thereof |
| CN115838267A (en) * | 2022-12-05 | 2023-03-24 | 北京建筑大学 | Preparation method and application of pervious concrete with pollution-reducing and carbon-reducing functions |
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| CN101497514A (en) * | 2008-06-05 | 2009-08-05 | 北京联合荣大工程材料有限责任公司 | Low cost cement self-leveling mortar |
| CN101508547A (en) * | 2009-04-09 | 2009-08-19 | 中国铁道科学研究院铁道建筑研究所 | Early-strong-fast-hard end capping anchorage mortar material for fragment-free railway plate |
| CN102557560A (en) * | 2010-12-09 | 2012-07-11 | 徐敏 | Low-cost self-leveling mortar |
| CN104876500A (en) * | 2015-04-17 | 2015-09-02 | 黄贺明 | Self-compacting powder concrete for ocean engineering as well as preparation method and application |
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2016
- 2016-05-30 CN CN201610371566.4A patent/CN106007539B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497514A (en) * | 2008-06-05 | 2009-08-05 | 北京联合荣大工程材料有限责任公司 | Low cost cement self-leveling mortar |
| CN101508547A (en) * | 2009-04-09 | 2009-08-19 | 中国铁道科学研究院铁道建筑研究所 | Early-strong-fast-hard end capping anchorage mortar material for fragment-free railway plate |
| CN102557560A (en) * | 2010-12-09 | 2012-07-11 | 徐敏 | Low-cost self-leveling mortar |
| CN104876500A (en) * | 2015-04-17 | 2015-09-02 | 黄贺明 | Self-compacting powder concrete for ocean engineering as well as preparation method and application |
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