CN1278520A - Cement, flyash and steel slag pile and its production process - Google Patents
Cement, flyash and steel slag pile and its production process Download PDFInfo
- Publication number
- CN1278520A CN1278520A CN00115934A CN00115934A CN1278520A CN 1278520 A CN1278520 A CN 1278520A CN 00115934 A CN00115934 A CN 00115934A CN 00115934 A CN00115934 A CN 00115934A CN 1278520 A CN1278520 A CN 1278520A
- Authority
- CN
- China
- Prior art keywords
- flyash
- pile
- cement
- slag
- steel slag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002893 slag Substances 0.000 title claims abstract description 43
- 239000010881 fly ash Substances 0.000 title claims abstract description 38
- 239000004568 cement Substances 0.000 title claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 title claims description 17
- 239000010959 steel Substances 0.000 title claims description 17
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000000203 mixture Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 24
- 239000000945 filler Substances 0.000 claims description 14
- 238000013461 design Methods 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 6
- 239000004567 concrete Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 230000032683 aging Effects 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 206010044565 Tremor Diseases 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 10
- 239000002689 soil Substances 0.000 description 19
- 238000010276 construction Methods 0.000 description 8
- 238000012545 processing Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- 238000007906 compression Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 239000002440 industrial waste Substances 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- 239000010883 coal ash Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000003469 silicate cement Substances 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Images
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
- 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
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The present invention relates to a cement flyash slag pile and its pile-forming process. It uses cement, flyash and slag as raw material, adds water according to a certain proportion, and its water demand is controlled in that the slump of its mixture 7 is equal to 1-3cm.. Its pile-forming process includes the following steps: measuring and setting out, setting pile position and checking, pile machine levelling, aligning pile position, pipe sinking to designed level, checking raw materials, preparing mixture, synchronously hammering internal and external pipes to pile bottom designed level, synchronously drawing out internal and external pipes to a certain height, pouring pile body, sectionally drawing pipe, filling in layer and compacting in layer to obtain the invented cement flyash slag pile.
Description
The present invention relates to usefulness material and manufacture craft thereof that a kind of ground is handled, particularly a kind of cement, flyash and steel slag pile and manufacture craft thereof.It is mainly used in the ground process field of the geotechnical engineering specialty of civil engineering work subject, and process object is generally weak foundation soils such as collapsible loess, plain fill and mud, mucky soil.
Chinese patent CN1113985A disclosed " a kind of filler formulation of making pile by grouting into and pile-formation process thereof ", its basic technology is, in grout, mix the flyash of 7%-70% or screening, ground slag ashes, in pile-formation process, adopt long tube formula vibrator to vibrate, and propose stratum not of the same race slip casting, mend the suitable pressure of slurry, can make material cost decline 30%-50% thus, thereby reach the construction costs that descends significantly.The utilization again of flyash, slag ashes both can be turned waste into wealth, and had reduced environmental pollution again.Pile strength, the Bearing Capacity of Composite Foundation of relevant CFG (CFG stake) studied in the article of " CFG stake pile shaft material Test Study on Strength " that " geologic hazard and environment protection " magazine (in March, 1998) is published; proposing big parameter III a level flyash plain concrete is pile shaft material; under the condition that breaks through conventional limited flyash replacement cement rate, still can reach the imagination of the ultimate compression strength of design requirements.In addition, " application of lime pile-pulverized-coal-ash pile in Deep Thick Soft Ground ground " article of delivering of " building structure " magazine (1997 the 4th phases) has been done introduction to the situation of lime, pulverized-coal-ash pile or slag lime pile Ground Treatment soil.Existing method all do not consider flyash, slag waste material used simultaneously and cost slightly higher.According to the knowledge of the applicant, existing industrial waste, pile up like a mountain in some power plant, steel mill as flyash, slag, is difficult to handle, and both taken a large amount of soils, contaminate environment, the resident's productive life around giving is again brought inconvenience.And some foundation soils such as non-self weight collapse loess have Q because self characteristics can not satisfy the requirement of large scale industry building foundation to foundation soil far away as peace steel area, Chinese Henan widespread distribution
4 2a1And Q
4 1a1I-non-self weight collapse loess of II level, full depth is in 9 meters of the below grounds, water content w=18%-24%, void ratio e=0.75-1.10, compression factor standard value (a
100-200) greater than 0.5MPa
-1, collapse initial compression standard value P
Sh, kBetween 100kPa-145kPa, both all can not satisfy the requirement of large scale industry buildings or structures basis to foundation soil its intensity and modification, need handle it.Foundation soil is handled, and method in common is the piling compacting at present, with bearing capacity and the modulus of compression that increases processed foundation soil.
The objective of the invention is; the practical problems of foundation soil being handled at the existing building requirement of engineering; and the big steel slag that produces of blast furnace steel-making, a large amount of flyash that thermal power generation produces need be handled the difficulty that is faced; a kind of cement, flyash and steel slag pile and manufacture craft thereof are proposed; guaranteeing to satisfy under the prerequisite of standard and design requirements; gather materials on the spot; make full use of power plant, the existing industrial waste flyash of steel mill and slag; turn waste into wealth; both reduced investment outlay; reduce construction costs, protect environment again.
Technical solution of the present invention is, with cement, flyash, slag is raw material, add entry behind the mix in proportion, it is characterized in that, in 1 cubic metre of mixed material, the weight ratio of cement, flyash, slag is 220 kilograms: 450 kilograms: 1800 kilograms, the consumption of water is controlled at slump T=1-3 centimetre of mixed material.
It is characterized in that slag is made up of coarse fodder and fines, the coarse fodder of slag, the weight ratio of fines are 7: 3.
It is characterized in that the particle diameter of coarse fodder is greater than 20 millimeters, less than 100 millimeters.
It is characterized in that the fill factor of mixed material is 1.6-1.8.
It is characterized in that slag system is through the slag of open-air ageing at least three months or a year.
It is characterized in that flyash is defined as the III level by " being used for cement and concrete flyash " GB1596-91.
Manufacture craft of the present invention is, measure unwrapping wire, put stake position and check, the leveling of stake machine, the align piles position, immersed tube is to designed elevation, it is characterized in that, to making raw material-cement, flyash, slag is tested, and according to the preparation of design mix part by weight, water filling is stirred, stir, the qualified mixed material of preparation is used to pour into pile body, the segmentation tube drawing, the layering filler, tamping in layers, the step of its pile is, stake pipe vertical centering is in place, in the hammering synchronously, outer tube is to stake end designed elevation, in synchronization onwards is pulled out, outer tube is to certain altitude, stopped pulling out outer tube only pull out in pipe expose up to the filler window, and from the window filler, pipe overlaps until the inner and outer pipes top in the hammering, repeats above pile step, until a pile beaten and material filling to design more than the top mark height 0.5 meter.
Advantage of the present invention is, satisfies under the prerequisite of standard and design requirements guaranteeing, gathers materials on the spot, and makes full use of power plant, the existing industrial waste flyash of steel mill and slag, turns waste into wealth, and both reduces investment outlay, and reduces construction costs, protects environment again.Ground through the present invention's processing, its bearing capacity can reach more than the 300kPa, modulus of deformation can reach more than the 10Mpa, about doubling than natural foundation bearing capacity, modulus of deformation, the long 9 meters bearing capacity of single pile standard value of stake can reach about 200kN, eliminated the collapsibility of inter-pile soil simultaneously, ground is handled and is reduced investment outlay about 30%.
Fig. 1, process flow sheet of the present invention
Below, describe embodiments of the invention with reference to the accompanying drawings in detail.
Making material category of the present invention is mainly cement, flyash, slag, also has water.To the requirement of making material be: hydromining is with ordinary tap water or process water; Cement adopts common No. 425 silicate cements; Flyash is defined as the III level by " being used for cement and concrete flyash " GB1596-91; Slag adopts the slag of the natural grading of steelworks production, by coarse fodder m
gFines m
sForm coarse fodder m
gParticle diameter d＞20 millimeter, but should not be above 100 millimeters.Fines m
sParticle diameter d≤20 millimeter.Slag need perhaps be washed vexedization more than 10 hours through open-air ageing 1 year or more than at least three months, guarantees wherein active calcium oxide f
CaOContent ≯ 5%, or between 3-5%.The proportioning of making material is that in 1 cubic metre the mixed material, the weight ratio of cement, flyash and slag is followed successively by 220 kilograms: 450 kilograms: 1800 kilograms, wherein, slag is by coarse fodder m
gWith fines m
sForm coarse fodder m
gWith fines m
sWeight ratio be 7: 3.The consumption of water is controlled at slump T=1-3 centimetre of mixed material and is advisable.Control Indexes in Construction, the layering filler, the fill factor of mixed material is 1.6-1.8, guarantees it by compacted, and fully glued.The pile making equipment adopts DDJ-25 type or the construction of DDJ-30 type diesel oil hammer hidden pipe caisson pile machine, is made up of interior pipe (core pipe) two parts that seal the outer tube (sleeve pipe) and the bottom of bottom end opening.Outer tube wall (is generally 1.5 meters) at a certain distance opening filler.As shown in Figure 1, manufacture craft of the present invention is, measure unwrapping wire, put stake position and check, the leveling of stake machine, the align piles position, immersed tube is to designed elevation, to making raw material-cement, flyash, slag is tested, according to the preparation of design mix part by weight, water filling is stirred, and stirs, the qualified mixed material of preparation is used to pour into pile body, adopt the segmentation tube drawing, the layering filler, the tamping in layers mode is carried out, in synchronization onwards is pulled out, the outer tube certain altitude, stopped pulling out outer tube only pull out in pipe expose until the filler window, and from the window filler, pipe overlaps until the inner and outer pipes top in the hammering.Need particularly point out the step of pile: 1, stake pipe vertical centering is in place.2, synchronous hammering inner and outer pipe is to a stake end designed elevation.3, synchronization onwards is pulled out inner and outer pipe to certain altitude (being generally 1.0 meters), stopped pulling out outer tube only pull out in pipe expose up to the filler window, and from the window filler.4, pipe overlaps until the inner and outer pipes top in the hammering.5, repeat the 1-4 operation, until a pile beaten and material filling to design more than the top mark height 0.5 meter.Subject range of the present invention: the 1) processing of steel mill, power plant or its surrounding area foundation soil.2) processing of foundation soil under industrial buildings or structures or the covil construction basis.3) processing of weak foundation soils such as collapsible loess, plain fill and mud, mucky soil.4) processing of above, the following regional foundation soil of ground water table, but its pH value slightly equals 7, is neutral substantially.
In the application of the present invention's processing of foundation soil under the covil construction basis, the work of should doing experiment is earlier collected bearing capacity of single pile, material mixture ratio and stress test data.In the application of the processing of weak foundation soils such as mud, mucky soil, should strengthen the collection of test work and testing data, comprising compiling of bearing capacity of single pile, material mixture ratio and stress test data.So that instruct large-area construction.Guarantee the quality of engineering.
Claims (7)
1, a kind of cement, flyash and steel slag pile, with cement, flyash, slag is raw material, add entry behind the mix in proportion, it is characterized in that, in 1 cubic metre of mixed material, the weight ratio of cement, flyash, slag is 220 kilograms: 450 kilograms: 1800 kilograms, the consumption of water is controlled at trembles slump T=1-3 centimetre that closes material.
2, a kind of cement, flyash and steel slag pile according to claim 1 is characterized in that, slag is made up of coarse fodder and fines, and the coarse fodder of slag, the weight ratio of fines are 7: 3.
3, a kind of cement, flyash and steel slag pile according to claim 1 is characterized in that, the particle diameter of coarse fodder is greater than 20 millimeters, less than 100 millimeters.
4, a kind of cement, flyash and steel slag pile according to claim 1 is characterized in that, the fill factor of mixed material is 1.6-1.8.
5, a kind of cement, flyash and steel slag pile according to claim 1 is characterized in that, slag system is through the slag of open-air ageing at least three months or a year.
6, a kind of cement, flyash and steel slag pile according to claim 1 is characterized in that, flyash is defined as the III level by " being used for cement and concrete flyash " GB1596-91.
7, the manufacture craft of a kind of cement, flyash and steel slag pile according to claim 1, measure unwrapping wire, put stake position and check, the leveling of stake machine, the align piles position, immersed tube is to designed elevation, it is characterized in that, to making raw material-cement, flyash, slag is tested, and according to the preparation of design mix part by weight, water filling is stirred, stir, the qualified mixed material of preparation is used to pour into pile body, the segmentation tube drawing, the layering filler, tamping in layers, the step of its pile is, stake pipe vertical centering is in place, in the hammering synchronously, outer tube is to stake end designed elevation, in synchronization onwards is pulled out, outer tube is to certain altitude, stopped pulling out outer tube only pull out in pipe expose up to the filler window, and from the window filler, pipe overlaps until the inner and outer pipes top in the hammering, repeats above pile step, until a pile beaten and material filling to design more than the top mark height 0.5 meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00115934A CN1102550C (en) | 2000-08-02 | 2000-08-02 | Cement, flyash and steel slag pile and its production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00115934A CN1102550C (en) | 2000-08-02 | 2000-08-02 | Cement, flyash and steel slag pile and its production process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1278520A true CN1278520A (en) | 2001-01-03 |
| CN1102550C CN1102550C (en) | 2003-03-05 |
Family
ID=4585374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00115934A Expired - Fee Related CN1102550C (en) | 2000-08-02 | 2000-08-02 | Cement, flyash and steel slag pile and its production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1102550C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104591643A (en) * | 2014-12-25 | 2015-05-06 | 安徽工业大学 | Preparation method of expansion rate-controllable steel pipe and steel-slag concrete column |
-
2000
- 2000-08-02 CN CN00115934A patent/CN1102550C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104591643A (en) * | 2014-12-25 | 2015-05-06 | 安徽工业大学 | Preparation method of expansion rate-controllable steel pipe and steel-slag concrete column |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1102550C (en) | 2003-03-05 |
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| C06 | Publication | ||
| C10 | Entry into substantive examination | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030305 Termination date: 20160802 |
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| CF01 | Termination of patent right due to non-payment of annual fee |