CN106966616A - New road slag cement and its preparation method and application - Google Patents
New road slag cement and its preparation method and application Download PDFInfo
- Publication number
- CN106966616A CN106966616A CN201710197541.1A CN201710197541A CN106966616A CN 106966616 A CN106966616 A CN 106966616A CN 201710197541 A CN201710197541 A CN 201710197541A CN 106966616 A CN106966616 A CN 106966616A
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- slag cement
- new road
- slags
- raw material
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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
- C04B7/00—Hydraulic cements
- C04B7/14—Cements containing slag
- C04B7/147—Metallurgical slag
- C04B7/153—Mixtures thereof with other inorganic cementitious materials or other activators
- C04B7/21—Mixtures thereof with other inorganic cementitious materials or other activators with calcium sulfate containing activators
-
- 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
- C04B28/08—Slag cements
- C04B28/082—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
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Abstract
New road slag cement of the present invention and its preparation method and application, is related to a kind of new road slag cement formula development and application.Its purpose is to provide a kind of to prepare simple, new road slag cement of function admirable and its preparation method and application.The slag cement of the present invention includes according to mass fraction：68~72 parts of clinkers, 18~22 parts of slags, 4.6~5.4 parts of slags, 4.1~4.8 parts of gypsum and 0.4~0.6 part of concrete stimulator.The new road slag cement of the present invention is by recycling slag, and by slag and clinker, the raw material proportioning such as slag improves the frost resistance of cement, corrosion resistance and volume stability, reduces the change of cement drying shrinkage, reduces the heat of hydration.New road slag cement builds road, high with intensity, and wearability and skid resistance are good, and good endurance, maintenance cost is low, the features such as can extending highway service life.The present invention is used for ground surface material field.
Description
Technical field
The invention belongs to ground surface material field, it is related to a kind of new road slag cement formula development and application.
Background technology
Highway construction is the basic industry of country and the leading industry of economic development, and highway is during long-term use, meeting
It is exposed to the sun by sunlight, the immersion of rainwater is corroded, the abrasion etc. that rolls of vehicle is acted on, and road surface is produced different degrees of destruction.
Wherein, highway due to use intensity it is big, be located in bad environments, it is more serious compared to common road destructiveness.Therefore, such as
What produces high-performance, and how high intensity road cement special makes the basic more stable of concrete, so as to give full play to public at a high speed
The service efficiency on road, extends highway service life, reduces road surface roadbed and damages, will be institute face in Expressway Development process
The new problem faced.At present, to have built occupation of land more for highway, have effect on environment big, investment is big, and cost is greatly, long in time limit etc.
Shortcoming.Slag has utilization rate low at home as a kind of industrial solid wastes, the features such as wide material sources.
The content of the invention
The technical problem to be solved in the present invention is to provide it is a kind of prepare simple, the new road slag cement of function admirable and
Its preparation method and application, new road slag cement of the invention is by recycling slag, by slag and clinker, ore deposit
The raw material proportionings such as slag, improve the frost resistance of cement, corrosion resistance and volume stability, reduce the change of cement drying shrinkage, reduction
The heat of hydration.New road slag cement builds road, high with intensity, and wearability and skid resistance are good, good endurance, maintenance expense
With low, the features such as highway service life can be extended.
The present invention relates to a kind of new road slag cement, the slag cement includes according to mass fraction：68~72 parts
Clinker, 18~22 parts of slags, 4.6~5.4 parts of slags, 4.1~4.8 parts of gypsum and 0.4~0.6 part of concrete stimulator.
Preferably, the concrete stimulator is CCK-1 concrete stimulators.
Preferably, the slag cement includes according to mass fraction：69~71 parts of clinkers, 19~21 parts of slags, 4.8
~5.2 parts of slags, 4.3~4.7 parts of gypsum and 0.45~0.55 part of concrete stimulator.
Preferably, the slag cement includes according to mass fraction：70 parts of clinkers, 20 parts of slags, 5 parts of slags, 4.5
Part gypsum and 0.5 part of concrete stimulator.
Preferably, surfactant is also included in the slag cement.
Preferably, the surfactant is that AEO-9 surfactants (belong to AEO, R-O-
(CH2CH2O)nH (R=C12~18, n=15~16)), it is natural fatty alcohol and ethylene oxide adduct, is that non-ionic surface is lived
Property agent).
The invention further relates to a kind of preparation method of new road slag cement, the preparation method comprises the following steps：
(1) raw material is weighed：Weighed respectively according to mass fraction 68~72 parts of clinkers, 18~22 parts of slags, 4.6~
5.4 parts of slags, 4.1~4.8 parts of gypsum and 0.4~0.6 part of concrete stimulator；
(2) raw material is crushed：The raw material that step (1) is weighed crosses 2mm sieves, the original after being crushed respectively after crushing respectively
Material；
(3) grind：By step (2) obtain it is broken after raw material in clinker with after small mill grinding, 80 μm of sides of mistake
Hole sizer, screen over-size≤9.2 part；Raw material after broken in addition to clinker is not less than 40min with small mill grinding；It is well mixed,
Obtain the new road slag cement of the present invention；
Screen over-size refers to remaining mass fraction after material sieving in the step (3).
Preferably, clinker crosses 80 μm of square hole screens in the step (2), and screen over-size≤5.2 part, the screen over-size refers to
Remaining mass fraction after material sieving.
Preferably, each raw material includes 69~71 parts of clinkers, 19~21 parts of steel according to mass fraction in the step (1)
Slag, 4.8~5.2 parts of slags, 4.3~4.7 parts of gypsum and 0.45~0.55 part of concrete stimulator.
Preferably, each raw material includes 70 parts of clinkers, 20 parts of slags, 5 parts of ore deposits according to mass fraction in the step (1)
Slag, 4.5 parts of gypsum and 0.5 part of concrete stimulator.
Preferably, surfactant is also included in the raw material in the step (1).
The invention further relates to a kind of application of new road slag cement, the new road slag cement is mixed for preparing
Solidifying soil.
When the new road slag cement is used to prepare concrete, new road slag cement of the invention is as main
Binder materials, sand, stone are as aggregate, wherein meeting JGJ52-2006 as the sand of aggregate《Regular concrete sand, stone quality
And test method standard》In II class technical requirements, modulus of fineness is between 2.6~2.9.
Preferably, the new road slag cement comprises the following steps for preparing the method for concrete：
(1) ratio of water and cement is determined according to the actual strength of the design strength of slag cement concrete and slag cement
Example, water demand ratio normal concrete during mixing slag cement concrete is big, obtains the preliminary proportioning of slag cement concrete；
(2) in the case where keeping the constant rate of water and cement, the proportionate relationship constantly between adjustment sand and stone is seen
The workability of mixture is examined, concrete 28d intensity is determined, sand and the most suitable ratio of stone is found.
New road slag cement of the present invention and its preparation method and application difference from prior art is：
New road slag cement of the present invention improves the compression strength and rupture strength of ordinary cement, has again
The characteristic of clinker mixed ratio and reduction production cost in 42.5 grade cements proportioning is reduced, systematically perfect cement spike
Performance, is that the exploitation of road cement special or low-grade cement is laid a good foundation, illustrates novel steel slag cement of the present invention
With stronger practicality and economic benefit, cost can be reduced, is with a wide range of applications.
Embodiment
By following examples and checking test to new road slag cement of the present invention and its preparation method and application
It is further described.
Embodiment 1
The new road slag cement of the present embodiment is prepared according to the following steps：
(1) raw material is weighed：It is mixed that 68kg clinkers, 20kg slags, 5kg slags, 4.7kg gypsum and 0.45kg are weighed respectively
Solidifying soil stimulator；
(2) raw material is crushed：The raw material that step (1) is weighed crosses 2mm sieves, the original after being crushed respectively after crushing respectively
Material；
(3) grind：By step (2) obtain it is broken after raw material in clinker with after small mill grinding, 80 μm of sides of mistake
Hole sizer, screen over-size is 9.2kg；Raw material after broken in addition to clinker is with small mill grinding 40min；It is well mixed, that is, obtain
The new road slag cement of the present invention；
Screen over-size refers to remaining quality after material sieving in step (3).
Embodiment 2
The new road slag cement of the present embodiment is prepared according to the following steps：
(1) raw material is weighed：71kg clinkers, 19kg slags, 4.8kg slags, 4.3kg gypsum and 0.5kg are weighed respectively
Concrete stimulator；
(2) raw material is crushed：The raw material that step (1) is weighed crosses 2mm sieves, the original after being crushed respectively after crushing respectively
Material；
(3) grind：By step (2) obtain it is broken after raw material in clinker with after small mill grinding, 80 μm of sides of mistake
Hole sizer, screen over-size is 3.8kg；Raw material after broken in addition to clinker is with small mill grinding 50min；It is well mixed, that is, obtain
The new road slag cement of the present invention；
Screen over-size refers to remaining quality after material sieving in step (3).
Embodiment 3
The new road slag cement of the present embodiment is prepared according to the following steps：
(1) raw material is weighed：70kg clinkers, 21kg slags, 5.4kg slags, 4.1kg gypsum and 0.4kg are weighed respectively
Concrete stimulator；
(2) raw material is crushed：The raw material that step (1) is weighed crosses 2mm sieves, the original after being crushed respectively after crushing respectively
Material；
(3) grind：By step (2) obtain it is broken after raw material in clinker with after small mill grinding, 80 μm of sides of mistake
Hole sizer, screen over-size is 5kg；Raw material after broken in addition to clinker is with small mill grinding 60min；It is well mixed, that is, obtain this
The new road slag cement of invention；
Screen over-size refers to remaining quality after material sieving in step (3).
Embodiment 4
The new road slag cement of the present embodiment is prepared according to the following steps：
(1) raw material is weighed：69kg clinkers, 22kg slags, 4.6kg slags, 4.5kg gypsum and 0.55kg are weighed respectively
Concrete stimulator；
(2) raw material is crushed：The raw material that step (1) is weighed crosses 2mm sieves, the original after being crushed respectively after crushing respectively
Material；
(3) grind：By step (2) obtain it is broken after raw material in clinker with after small mill grinding, 80 μm of sides of mistake
Hole sizer, screen over-size is 6.2kg；Raw material after broken in addition to clinker is with small mill grinding 40min；It is well mixed, that is, obtain
The new road slag cement of the present invention；
Screen over-size refers to remaining quality after material sieving in step (3).
Embodiment 5
The new road slag cement of the present embodiment is prepared according to the following steps：
(1) raw material is weighed：72kg clinkers, 18kg slags, 5.2kg slags, 4.9kg gypsum and 0.6kg are weighed respectively
Concrete stimulator；
(2) raw material is crushed：The raw material that step (1) is weighed crosses 2mm sieves, the original after being crushed respectively after crushing respectively
Material；
(3) grind：By step (2) obtain it is broken after raw material in clinker with after small mill grinding, 80 μm of sides of mistake
Hole sizer, screen over-size is 8.4kg；Raw material after broken in addition to clinker is with small mill grinding 70min；It is well mixed, that is, obtain
The new road slag cement of the present invention；
Screen over-size refers to remaining quality after material sieving in step (3).
Embodiment 6
The difference of the preparation method and embodiment 5 of the new road slag cement of the present embodiment is：Step (1) is former
When material is weighed, 1017g surfactant is also weighed out.Surfactant is added in the raw material proportioning of the new road slag cement
Incorporation in 1wt% (incorporation of surfactant refers to the mass fraction that surfactant accounts for new road slag cement) most
It is good.The strength of cement formation mechenism and material character each age for adding slag are identical.But when surfactant incorporation is more than
Intensity is also in reduction after 1wt%, from the point of view of 28 days observed strengths, the cement addition surfactant incorporation of addition slag
It is optimal in 1wt%.
Embodiment 7
The application of the new road slag cement of the present embodiment, using obtained new road slag water in embodiment 1-5
Clay standby concrete.
When new road slag cement is used to prepare concrete, new road slag cement conduct made from above-described embodiment
Major gelled material, sand, stone are as aggregate, wherein meeting JGJ52-2006 as the sand of aggregate《Regular concrete sand, stone
Quality and test method standard》In II class technical requirements, modulus of fineness is between 2.6~2.9.
Specifically carry out according to the following steps：
(1) ratio of water and cement is determined according to the actual strength of the design strength of slag cement concrete and slag cement
Example, water demand ratio normal concrete during mixing slag cement concrete is big, obtains the preliminary proportioning of slag cement concrete；
(2) in the case where keeping the constant rate of water and cement, the proportionate relationship constantly between adjustment sand and stone is seen
The workability of mixture is examined, concrete 28d intensity is determined, sand and the most suitable ratio of stone is found.
The scheme of the present embodiment 5 is optimal, wherein 72kg clinkers, 18kg slags, 5.2kg slags, 4.9kg gypsum and
0.6kg concrete stimulators.
Comparative example 1
The new road slag cement of this comparative example is prepared according to the following steps：The first step, by raw material fraction meter by weight,
Raw material includes 65 parts of clinkers, 20 parts of slags, 10 parts of slags, 4 parts of gypsum, 1 part of concrete stimulator (formula 1)；Second step,
After raw material is proportioned, first by large grained material fragmentation into fine granularity, 2mm sieves, the particle that will do not crushed completely are crossed
Remove；3rd step, after small mill grinding, cement fraction meter by weight crosses 80 μm of square hole screens, and screen over-size is 13.2 parts, in addition to clinker
It is 40min that all proportionings, which grind the time, and clinker grinds the time for 60min.The performance for the novel steel slag cement that the example is obtained
(fineness (%), 28 days air shrinkage values (%), setting time (min), rupture strength (Mpa) and compression strength (Mpa)) with implementing
It is formulated obtained new road slag cement described in example 1 to be contrasted, correction data is as shown in table 1.
Comparative example 2
The new road slag cement of this comparative example is prepared according to the following steps：The first step, by raw material fraction meter by weight,
Raw material includes 70 parts of clinkers, 20 parts of slags, 5 parts of slags, 5 parts of gypsum, 0 part of concrete stimulator (formula 2)；Second step,
After raw material is proportioned, first by large grained material fragmentation into fine granularity, 2mm sieves, the particle that will do not crushed completely are crossed
Remove；3rd step, after small mill grinding, cement fraction meter by weight crosses 80 μm of square hole screens, and screen over-size is 8.4 parts, in addition to clinker
It is 40min that all proportionings, which grind the time, and clinker grinds the time for 60min.The performance for the novel steel slag cement that the example is obtained
(fineness (%), 28 days air shrinkage values (%), setting time (min), rupture strength (Mpa) and compression strength (Mpa)) with implementing
It is formulated obtained new road slag cement described in example 1 to be contrasted, correction data is as shown in table 1.
The performance of concrete made from the different formulations of table 1 obtained by cement
In summary, new road slag cement of the invention improves the compression strength and rupture strength of ordinary cement,
For the optimal proportion in same material slag cement, have again and reduce clinker mixed ratio in 42.5 grade cements proportioning, reduction life
Produce the characteristic of cost, the system perfecting performance of cement spike is that the exploitation of road cement special or low-grade cement is established
Basis, illustrates that novel steel slag cement of the present invention has stronger practicality and economic benefit, can reduce cost, tool
Have wide practical use.
Although the foregoing describing the embodiment of the present invention, it will be appreciated by those of skill in the art that these
It is merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the back
On the premise of principle and essence from the present invention, various changes or modifications can be made to these embodiments, but these are changed
Protection scope of the present invention is each fallen within modification.
Claims (10)
1. a kind of new road slag cement, it is characterised in that：The slag cement includes according to mass fraction：68~72 parts of water
Mud clinker, 18~22 parts of slags, 4.6~5.4 parts of slags, 4.1~4.8 parts of gypsum and 0.4~0.6 part of concrete stimulator.
2. new road slag cement according to claim 1, it is characterised in that：The slag cement is according to mass fraction
Including：69~71 parts of clinkers, 19~21 parts of slags, 4.8~5.2 parts of slags, 4.3~4.7 parts of gypsum and 0.45~0.55
Part concrete stimulator.
3. new road slag cement according to claim 2, it is characterised in that：The slag cement is according to mass fraction
Including：70 parts of clinkers, 20 parts of slags, 5 parts of slags, 4.5 parts of gypsum and 0.5 part of concrete stimulator.
4. the new road slag cement according to any one claim in claim 1-3, it is characterised in that：It is described
Slag cement also includes surfactant.
5. a kind of preparation method of new road slag cement, it is characterised in that：The preparation method comprises the following steps：
(1) raw material is weighed：Weighed respectively according to mass fraction 68~72 parts of clinkers, 18~22 parts of slags, 4.6~5.4 parts
Slag, 4.1~4.8 parts of gypsum and 0.4~0.6 part of concrete stimulator；
(2) raw material is crushed：The raw material that step (1) is weighed crosses 2mm sieves, the raw material after being crushed respectively after crushing respectively；
(3) grind：By step (2) obtain it is broken after raw material in clinker with after small mill grinding, 80 μm of square hole screens of mistake,
Screen over-size≤9.2 part；Raw material after broken in addition to clinker is not less than 40min with small mill grinding；It is well mixed, that is, obtain
The new road slag cement of the present invention；
Screen over-size refers to remaining mass fraction after material sieving in the step (3).
6. the preparation method of new road slag cement according to claim 5, it is characterised in that：In the step (2)
Clinker crosses 80 μm of square hole screens, screen over-size≤5.2 part, and the screen over-size refers to remaining mass fraction after material sieving.
7. the preparation method of new road slag cement according to claim 5, it is characterised in that：In the step (1)
Each raw material according to mass fraction include 69~71 parts of clinkers, 19~21 parts of slags, 4.8~5.2 parts of slags, 4.3~4.7 parts
Gypsum and 0.45~0.55 part of concrete stimulator.
8. the preparation method of new road slag cement according to claim 7, it is characterised in that：In the step (1)
Each raw material includes 70 parts of clinkers, 20 parts of slags, 5 parts of slags, 4.5 parts of gypsum and 0.5 part of concrete according to mass fraction and swashed
Agent.
9. the preparation method of the new road slag cement according to any one claim in claim 5-8, it is special
Levy and be：Also include surfactant in raw material in the step (1).
10. a kind of application of new road slag cement, it is characterised in that：The new road slag cement is used to prepare coagulation
Soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710197541.1A CN106966616A (en) | 2017-03-29 | 2017-03-29 | New road slag cement and its preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710197541.1A CN106966616A (en) | 2017-03-29 | 2017-03-29 | New road slag cement and its preparation method and application |
Publications (1)
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| CN106966616A true CN106966616A (en) | 2017-07-21 |
Family
ID=59337230
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| CN201710197541.1A Pending CN106966616A (en) | 2017-03-29 | 2017-03-29 | New road slag cement and its preparation method and application |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110330244A (en) * | 2019-08-13 | 2019-10-15 | 中国建筑材料科学研究总院有限公司 | It a kind of road surface quickly repairs with road cement and preparation method thereof |
| CN110590201A (en) * | 2019-08-13 | 2019-12-20 | 中国建筑材料科学研究总院有限公司 | Road cement with high chloride ion resistance and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1089928A (en) * | 1993-01-20 | 1994-07-27 | 马鞍山市水泥厂 | Slag cement for road |
| CN1792982A (en) * | 2005-11-25 | 2006-06-28 | 华南理工大学 | Silicate cement of precenting chlorate corrosion |
| CN101041580A (en) * | 2007-03-08 | 2007-09-26 | 武汉钢铁(集团)公司 | Complex ore slag fine powder |
| CN101492261A (en) * | 2008-12-17 | 2009-07-29 | 武汉钢铁(集团)公司 | Steel scoria tail mud composite slag micro mist agglutination material |
-
2017
- 2017-03-29 CN CN201710197541.1A patent/CN106966616A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1089928A (en) * | 1993-01-20 | 1994-07-27 | 马鞍山市水泥厂 | Slag cement for road |
| CN1792982A (en) * | 2005-11-25 | 2006-06-28 | 华南理工大学 | Silicate cement of precenting chlorate corrosion |
| CN101041580A (en) * | 2007-03-08 | 2007-09-26 | 武汉钢铁(集团)公司 | Complex ore slag fine powder |
| CN101492261A (en) * | 2008-12-17 | 2009-07-29 | 武汉钢铁(集团)公司 | Steel scoria tail mud composite slag micro mist agglutination material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110330244A (en) * | 2019-08-13 | 2019-10-15 | 中国建筑材料科学研究总院有限公司 | It a kind of road surface quickly repairs with road cement and preparation method thereof |
| CN110590201A (en) * | 2019-08-13 | 2019-12-20 | 中国建筑材料科学研究总院有限公司 | Road cement with high chloride ion resistance and preparation method thereof |
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