KR20160150136A - The composition for manufacturing pretensioned spun high strength concrete pile and method of producing the same - Google Patents
The composition for manufacturing pretensioned spun high strength concrete pile and method of producing the same Download PDFInfo
- Publication number
- KR20160150136A KR20160150136A KR1020150086341A KR20150086341A KR20160150136A KR 20160150136 A KR20160150136 A KR 20160150136A KR 1020150086341 A KR1020150086341 A KR 1020150086341A KR 20150086341 A KR20150086341 A KR 20150086341A KR 20160150136 A KR20160150136 A KR 20160150136A
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- South Korea
- Prior art keywords
- concrete pile
- composition
- cement
- high strength
- sand
- Prior art date
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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
-
- 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
- C04B14/06—Quartz; Sand
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Civil Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to a composition for use in the manufacture of concrete piles, which comprises mixing one kind of Portland cement, three kinds of crude steel cement, a slag powder and a high strength admixture in advance and adding water, sand, gravel, In order to produce a concrete pile exhibiting a compressive strength satisfying 800 kg / cm 2 after 3 days from the time of preparing the concrete pile with the above composition, water per 100 m 3 / m 2 3, at least Portland cement 120 ~ 300kg / m 3, 3 jong steel cement 140 ~ 320kg / m 3, the sand 550 ~ 850kg / m 3, gravel 1,000 ~ 1,400kg / m 3, slag powder 50 ~ 150kg / m 3, characterized by comprising in combination a high-strength honhapjae 50 ~ 110kg / m 3 and glidants 4 ~ 11kg / m 3. According to the present invention, it is possible to stably produce a high-strength concrete pile by improving the quality of the product by pre-mixing one kind of portland cement, three kinds of crude steel cement, a slag powder and a high- But also improve the quality such as stability, watertightness and durability, and can reduce the manufacturing cost.
Description
The present invention relates to a composition for manufacturing a high strength concrete (PHC) pile, which is a centrifugal molded product. In particular, when a concrete pile is manufactured, by mixing a first type Portland cement, three kinds of crude steel cement, a slag powder and a high strength mixed material, Concrete pile of the present invention can be stably produced, and quality, such as stability, watertightness and durability, can be improved and manufacturing cost can be reduced, and a manufacturing method thereof.
Generally, a concrete pile is prepared using a composition comprising water, cement, mixed materials, sand, gravel and a fluidizing agent as appropriate. At this time, in the case of the cement and the mixed material, they are separately metered and blended at a constant ratio.
In order to fabricate concrete piles which demonstrated a compressive strength which satisfies the 800kg / ㎠ in the composition, the composition 1m 3 sugar, water 140kg / m 3, the Portland cement 488 kg / m 3, honhapjae 44 kg / m 3, the sand 747 kg / m 3 , 1179 kg / m 3 of gravel and 7.95 kg / m 3 of fluidizing agent. Thus, W / B, i.e. water / bind, is 26% and S / A, i.e., water / (sand + gravel) is 39%.
However, when the above composition is used, variation in quality of the product due to W / S, that is, water / sand volatility, is large due to the fluctuation of water / sand during compounding. Therefore, There is a problem that the concrete file can not be stably produced.
On the other hand, a composition for producing a concrete pile characterized by comprising water, cement, a mixed material, sand, gravel and a fluidizing agent, which has been proposed by the present applicant as a prior art patent, and the fluidizing agent is a polycarbonate fluidizing agent (See Patent Document 1).
Further, a mixed material composition for a high strength cement characterized by comprising 70 to 90 wt.% Of an anhydrous gypsum powder of II type, 1 to 10 wt.% Of an Awane type clinker, and 5 to 20 wt. ).
Accordingly, it is an object of the present invention to solve the above problems, and it is an object of the present invention to provide a high strength concrete The present invention provides a composition for manufacturing a high-strength concrete pile and a method of manufacturing the same, which not only can stably produce a pile, but also improve quality such as stability, water tightness and durability and reduce manufacturing cost.
In order to accomplish the above object, the composition used for manufacturing the concrete pile according to the present invention is prepared by previously mixing one kind of Portland cement, three kinds of crude steel cement, a slag powder and a high strength mixing material, , Sand, gravel and a fluidizing agent are further blended.
In order to prepare a concrete pile having a compressive strength of 800 kg / cm 2 after 3 days from the preparation of the concrete pile with the above composition, water per 100 m 3 of the composition, 100-140 kg / m 3 of water, cement 120 ~ 300kg / m 3, 3 jong steel cement 140 ~ 320kg / m 3, the sand 550 ~ 850kg / m 3, gravel 1,000 ~ 1,400kg / m 3, slag powder 50 ~ 150kg / m 3, a high strength honhapjae 50 ~ 110kg / m < 3 > and the fluidizing agent 4 to 11 kg / m < 3 >.
According to another aspect of the present invention, there is provided a method for manufacturing a high strength concrete pile according to the present invention, comprising: mixing one kind of portland cement, three kinds of crude steel cement, a slag powder and a high strength mixed material; And further adding water, sand, gravel and a fluidizing agent to the blended mixture.
In order to produce a concrete pile having a compressive strength of 800 kg / cm 2 after 3 days from the preparation of the concrete pile with the above composition, the amount of water per 100 m 3 of the composition, 100 to 140 kg / m 3 of water, cement 120 ~ 300kg / m 3, 3 jong steel cement 140 ~ 320kg / m 3, the sand 550 ~ 850kg / m 3, gravel 1,000 ~ 1,400kg / m 3, slag powder 50 ~ 150kg / m 3, a high strength honhapjae 50 ~ 110kg / m < 3 > and the fluidizing agent 4 to 11 kg / m < 3 >.
According to the present invention, it is possible to stably produce a high-strength concrete pile by improving the quality of the product by mixing the first type Portland cement, the three kinds of crude steel cement, the slag powder and the high strength mixed material insensitively to the W / S variation width But also improve the quality such as stability, watertightness and durability, and can reduce the manufacturing cost.
It is a technical object of the present invention to provide a composition for preparing a high strength concrete pile by suitably blending water, one kind of portland cement, three kinds of crude steel cement, sand, gravel, slag powder, high strength mixed material and fluidizing agent.
That is, the composition for preparing a high-strength concrete pile according to the present invention improves the manner in which conventional cement (Portland cement) and mixed materials are metered separately and mixed with water, sand, gravel and fluidizing agent, Cement, three kinds of crude steel cement, slag powder and high strength mixed material are weighed and mixed together with water, sand, gravel, slag powder, high strength mixed material and fluidizing agent to change inner quality of high strength concrete pile to S / W So that it can be produced more stably, the workability can be improved, the watertightness and durability can be increased, and the manufacturing cost can be drastically reduced.
The composition of the present invention includes the Portland cement and the admixture, while the composition of the present invention includes the first type Portland cement, the three kinds of crude steel cement, the slag powder and the high strength admixture, It contains the part to blend.
For reference, portland cement 1 is the most common cement with calcium silicate as the main mineral, and the three kinds of crude steel cement have the chemical composition, calcination degree, Cement is faster because it has higher exothermic than cement.
Meanwhile, the first type Portland cement and the third type crude steel cement may be blended in a proportion of 40 to 80% by weight and 20 to 60% by weight, respectively.
The reason why the first type Portland cement and the third kind of crude steel cement are blended in the above ratio is to mix the mixed cement comprising the one kind of portland cement and the three kinds of crude steel cement together with the water, sand, gravel, slag powder, high strength mixture and fluidizing agent So that the compressive strength after 3 days is at least 800 kg / cm 2.
In particular, in the present invention, in order to produce concrete piles of vision a compressive strength which satisfies the 800kg / ㎠ After 3 days from the time of manufacture concrete piles in the composition, the composition 1m 3 sugar, water 100 ~ 140kg / m 3, 1 species Portland cement 120 ~ 300kg / m 3, 3 kinds of steel cast cement 140 ~ 320kg / m 3, the sand 550 ~ 850kg / m 3, gravel 1,000 ~ 1,400kg / m 3, slag powder 50 ~ 150kg / m 3, a high strength honhapjae 50 To 110 kg / m 3 and a fluidizing agent 4 to 11 kg / m 3 may be used in combination.
Hereinafter, the present invention will be described in more detail with reference to examples.
The following results were obtained from the following tests: (1) Water, one type of portland cement, three kinds of crude steel cement, sand, gravel, slag powder, high strength admixture and fluidizing agent. .
division
W / B
S / A
(W)
Sand (S)
Gravel (G)
1 day
3 days
7 days
28th
22 ~
33
32 ~
43
100 to 140
120-300
140 to 320
550 to 850
1,000 to 1,400
50 to 150
50 to 110
4 to 11
730-850
810 - 900
850-950
1,000 to 1,200
* Compressive strength: average of 100 times
As a result, when the concrete pile having the compressive strength satisfying 800 kg / cm 2 after 3 days is applied, the application of the one kind Portland cement and the three kinds of crude steel cement according to the present invention, It is possible to realize a high-strength concrete file more stably by insensitively changing the width of the product due to the variation of the W / S in the production of the centrifugal force product, thereby achieving innovative cost reduction.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And various alternatives, modifications, and changes may be made within the scope of the invention.
Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings . The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.
Claims (4)
A composition for preparing a high-strength concrete pile, characterized in that a mixture of one kind of portland cement, three kinds of crude steel cement, a slag powder and a high strength admixture is added in advance and then water, sand, gravel and a fluidizing agent are further added to the admixture .
In order to produce a concrete pile exhibiting a compressive strength satisfying 800 kg / cm 2 after 3 days from the preparation of the concrete pile with the above composition, water per 100 m 2 of the composition, 100-140 kg / m 3 of water, 300kg / m 3, 3 jong steel cement 140 ~ 320kg / m 3, the sand 550 ~ 850kg / m 3, gravel 1,000 ~ 1,400kg / m 3, slag powder 50 ~ 150kg / m 3, a high strength honhapjae 50 ~ 110kg / m 3 And 4 to 11 kg / m < 3 > of a fluidizing agent.
One kind of portland cement, three kinds of crude steel cement, slag powder and high strength mixed material;
Further comprising adding water, sand, gravel, and a fluidizing agent to the blended mixture to prepare a composition for making a high strength concrete pile.
In order to produce a concrete pile exhibiting a compressive strength satisfying 800 kg / cm 2 after 3 days from the preparation of the concrete pile with the above composition, water per 100 m 2 of the composition, 100-140 kg / m 3 of water, 300kg / m 3, 3 jong steel cement 140 ~ 320kg / m 3, the sand 550 ~ 850kg / m 3, gravel 1,000 ~ 1,400kg / m 3, slag powder 50 ~ 150kg / m 3, a high strength honhapjae 50 ~ 110kg / m 3 And a fluidizing agent of 4 to 11 kg / m < 3 >.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150086341A KR20160150136A (en) | 2015-06-18 | 2015-06-18 | The composition for manufacturing pretensioned spun high strength concrete pile and method of producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150086341A KR20160150136A (en) | 2015-06-18 | 2015-06-18 | The composition for manufacturing pretensioned spun high strength concrete pile and method of producing the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20160150136A true KR20160150136A (en) | 2016-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020150086341A KR20160150136A (en) | 2015-06-18 | 2015-06-18 | The composition for manufacturing pretensioned spun high strength concrete pile and method of producing the same |
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| KR (1) | KR20160150136A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2801191C1 (en) * | 2023-02-01 | 2023-08-03 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Петербургский государственный университет путей сообщения Императора Александра I" | High strength concrete |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100306227B1 (en) | 1999-05-14 | 2001-10-29 | 실뱅가르노 | Compounding composition for cement having high hardness |
| KR20130029552A (en) | 2011-09-15 | 2013-03-25 | 삼부건설공업 주식회사 | Composition for manufacturing concrete pile |
-
2015
- 2015-06-18 KR KR1020150086341A patent/KR20160150136A/en not_active Application Discontinuation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100306227B1 (en) | 1999-05-14 | 2001-10-29 | 실뱅가르노 | Compounding composition for cement having high hardness |
| KR20130029552A (en) | 2011-09-15 | 2013-03-25 | 삼부건설공업 주식회사 | Composition for manufacturing concrete pile |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2801191C1 (en) * | 2023-02-01 | 2023-08-03 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Петербургский государственный университет путей сообщения Императора Александра I" | High strength concrete |
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