CN108264290A - A kind of C25 misfires pea gravel concreten - Google Patents
A kind of C25 misfires pea gravel concreten Download PDFInfo
- Publication number
- CN108264290A CN108264290A CN201710001696.3A CN201710001696A CN108264290A CN 108264290 A CN108264290 A CN 108264290A CN 201710001696 A CN201710001696 A CN 201710001696A CN 108264290 A CN108264290 A CN 108264290A
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- CN
- China
- Prior art keywords
- misfires
- water
- pea gravel
- gravel concreten
- reducing agent
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- 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.)
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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
- C04B14/26—Carbonates
-
- 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
- C04B14/26—Carbonates
- C04B14/28—Carbonates of calcium
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- 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)
- Road Paving Structures (AREA)
Abstract
A kind of C25 misfires pea gravel concreten, which is characterized in that every cubic metre of C25 misfires percentage in pea gravel concreten, and component includes：Cement 12~14%, water 7~8%, coarse aggregate 44~45%, fine aggregate 32~34%, water-reducing agent 0.1~0.3%, wherein：The cement is with 42.5 grades of Portland cements, and the coarse aggregate is 5~16mm of grain size lime stones or dolomite；The fine aggregate is 2.8 limestone sand of fineness modulus or is 2.9 dolomite sand of fineness modulus, and the water-reducing agent is high-performance polycarboxylic acids water reducing agent.The C25 of the present invention misfires pea gravel concreten with convenient, less investment of drawing materials, easy to operate, effect is high, the construction material of Vietnam locality is made full use of to construct, construction quality is safe and reliable, it has saved a large amount of fee of material, duration, has reduced engineering cost, the advantages of saving expense adds up to 2.47 ten thousand yuan.
Description
Technical field
Misfire pea gravel concreten the present invention relates to one kind, specifically, being that a kind of concrete strength is misfired carefully for C25
Stone concrete.
Background technology
Normal concrete and common building material in the case where meeting with collision impact and rubbing action it is possible that generate spark, if
The building is inflammable and explosive place, such as oil depot, Gas Plant, it is possible to explosion, burning etc. occur and seriously endanger life security
Accident.GB 50016—2012《Code for fire protection design of buildings》Regulation " distributes the fuel gas compared with air weight, combustible gas
Class A workshop and have dust, Fibre Explosion danger Class B workshop, non-arcing ground should be used ".Existing national standards
GB 50209—2010《Building ground engineering construction quality acceptance specification》In also specially set up explosion-proof acceptance criteria of misfiring.
Concrete of misfiring is that one kind is amenable to impact friction without producing pyrophoric special concrete, as a kind of special type
Concrete, due to the particularity of its requirement, using not being very universal in commerical ready-mixed concrete, in China, fire protection rule increasingly will
In the case of asking stringent, it will be widely used, and be gradually taken seriously.
Chinese patent CN104211345B was disclosed on 01 06th, 2016 a kind of to be misfired using what normal sands were prepared
Concrete is mixed is formulated in proportion including cement, normal sands, coarse aggregate of misfiring, water, additive.Although
The concrete of misfiring of the invention can meet the misfiring property of concrete, and physical property and mechanical property meet specification mark
Alignment request has the advantages of preparation method is simple and practicable, at low cost, but people use it is not difficult to find that having recorded and having worked as in the invention
Normal sands are 1000r/min in grinding wheel speed, and when grain fineness number modulus is 2.7 and 10N applied forces, result of the test shows " to be under fire ".
Thus prove that the concrete of misfiring of the invention there are problems that " being under fire ".
Present invention applicant using in production river sand, dolomite/sand, lime stone/sand be separately formed glue sand test specimen with
The concrete sample of C30 grades is conserved to taking out after 7 days, is put into（105±5）After DEG C drying box is dried, in dark room
Test of misfiring inside is carried out to common stone, dolomite, lime stone, aggregate glue sand test specimen of the same race and concrete sample respectively, is tested
It is 1000r/min with grinding wheel speed, result of the test is shown in Table 1.
1 aggregate misfiring property result of the test of table
| Aggregate type | Common sandstone | Dali sandstone | Lime sandstone | White clouds sandstone |
| There is no-spark | Have | Have | Nothing | Nothing |
From result of the test it is found that common stone, normal sands and marble cannot be used for preparing concrete of misfiring, lime stone/sand and
Dolomite/sand is misfired test result qualification, is misfired concrete available for preparing.
The above-mentioned experiment of present invention applicant is reconfirmed to be existed " ignition " with the concrete of misfiring that normal sands are prepared
Problem, safety cause anxiety.
Therefore the known concrete of misfiring prepared using normal sands there are problems that it is above-mentioned various inconvenient and.
Invention content
The purpose of the present invention is to propose that a kind of safe and reliable C25 misfires pea gravel concreten.
To achieve the above object, technical solution of the invention is：
A kind of C25 misfires pea gravel concreten, is mixed and matches in proportion including cement, water, coarse aggregate, fine aggregate, water-reducing agent
It makes, which is characterized in that every cubic metre of C25 misfires percentage in pea gravel concreten, and component includes：
Cement 12~14%,
Water 7~8%,
Coarse aggregate 44~45%,
Fine aggregate 32~34%,
Water-reducing agent 0.1~0.3%,
Wherein：The cement be with 42.5 grades of Portland cements, the coarse aggregate for 5~16mm of grain size lime stones or
Dolomite；The fine aggregate is 2.8 limestone sand of fineness modulus or is 2.9 dolomite sand of fineness modulus, and the water-reducing agent is
High-performance polycarboxylic acids water reducing agent.
The C25 pea gravel concretens of misfiring of the present invention can also be further achieved by the following technical measures.
Aforementioned method, wherein the apparent density of the lime stone is 2700kg/m3, tight packing density 1450kg/
m3, clay content 1.2%, clod content is 0.3/%, crush index 16%, elongated particles 1.1%.
Aforementioned method, wherein the apparent density of the dolomite is 2790kg/m3, tight packing density 1470kg/
m3, clay content 0.6%, clod content is 0.2/%, crush index 15%, elongated particles 1.2%.
Aforementioned method, wherein the dolomite sand system is white using the mechanism that coarse aggregate dolomite described in bulk crushes
Marble sand.
Aforementioned method, wherein the limestone sand system uses the mechanism stone that coarse aggregate limestone crushing described in bulk forms
Grey stone sand.
Aforementioned method, wherein the water-reducing agent is high-performance polycarboxylic acids water reducing agent.
After adopting the above technical scheme, the C25 of the present invention misfires, pea gravel concreten has the following advantages：
1st, convenient, the less investment of materials, easy to operate, effect is high, and site operation is flexible；
2nd, concrete road surface construction process of misfiring linking is close, and the construction material of Vietnam locality is made full use of to be applied
Work, construction quality are safe and reliable；
3rd, it has saved a large amount of fee of material, duration, has reduced engineering cost, saving expense adds up to 2.47 ten thousand yuan.
Description of the drawings
Fig. 1 is the structure diagram of the concrete of misfiring of the embodiment of the present invention；
Fig. 2 is P positions enlarged drawing in Fig. 1.
In figure：1 misfires cement concrete road, and 2 misfire cement concrete terrace, 3 curbs, 4 element soil, 515cm
Thick rubble, 625cm thickness 0 × 4mm graded broken stones, 721cm thickness C30 Portland Cement Concrete Surface Courses, 84cm thickness C25 colored microliths of misfiring mix
Solidifying soil.
Specific embodiment
With reference to embodiments and its attached drawing illustrates further the present invention.
Embodiment 1
The C25 of the present invention misfires pea gravel concreten applied to Vietnam's treasured steel can（Hue）Engineering project, wherein road branch
Engineering creates the pea gravel concreten path area 8400m that misfires2, wherein newly-built misfire pea gravel concreten road and terrace area
For 1075 m2.Newly-built misfire pea gravel concreten road and terrace, surface structure are ground rammed earth, are laid on element soil
15cm thickness 5 × 7mm rubbles then spread 0 × 4 graded broken stone of 25cm thickness, repave 21cm thickness C30 Portland Cement Concrete Surface Courses, add cement
Slurry together, mixes building adhesive in cement mortar, the colored pea gravel concreten in addition 4cm thickness C25 misfires, lime of the stone without sundries
The aggregates such as stone, dolomite.The engineering mainly builds tank production line processed, and the fuel of production line is stored in CNG station, CNG station area
Domain is the fuel gas region distributed compared with air weight, belongs to inflammable and explosive region, accordingly all roads in design requirement CNG station
Road, terrace surface floor must use colored pea gravel concreten of misfiring.
Referring now to Fig. 1 and Fig. 2, the structure diagrams that pours misfire concrete of the Fig. 1 for the embodiment of the present invention, Fig. 2
For P positions enlarged drawing in Fig. 1.
The C25 of the present invention misfires pea gravel concreten, is mixed in proportion including cement, water, coarse aggregate, fine aggregate, water-reducing agent
It closes stirring to be formulated, which is characterized in that every cubic metre of C25 misfires in pea gravel concreten, and component includes：
Cement 380kg,
Water 200kg,
Coarse aggregate 1194kg,
Fine aggregate 858kg,
Water-reducing agent 7.6kg,
Wherein：The cement is with 42.5 grades of Portland cements, and the coarse aggregate is grain size 5~16mm lime stones, described
Fine aggregate is 2.8 limestone sand of fineness modulus, and the water-reducing agent is high-performance polycarboxylic acids water reducing agent.The lime stone it is apparent close
It spends for 2700kg/m3, tight packing density 1450kg/m3, clay content 1.2%, clod content is 0.3/%, and crush index is
16%, elongated particles 1.1%.The limestone sand system uses the mechanism lime that coarse aggregate limestone crushing described in bulk forms
Stone sand.The water-reducing agent is high-performance polycarboxylic acids water reducing agent.
The present invention has substantive distinguishing features and significant technological progress, and C25 of the invention pea gravel concreten of misfiring is directed to
Misfire road and terrace surface layer the characteristics of, appropriately have chosen suitable for this project construction material, be located at more to this project construction
Nan Shunhuasheng, the procurement price of dolomite/dolomitic sand is costly, poor as production concrete economic benefit of misfiring, comprehensive
Close experimental result and economic benefit, the misfire aggregates of pea gravel concreten of this item purpose C25 use lime stone/sand.The present invention's
Concrete pouring construction method of misfiring is technologically advanced, and construction is orderly, reliable in quality, and saves cost of construction materials, and reduction is applied
The work duration achieves good effect.
Vietnam's treasured steel can（Hue）The construction of engineering project, the not still elder generation of Vietnam's hue locality industrial project construction
It leads, and the practical technical barrier for solving local concrete company and can not producing pea gravel concreten of misfiring.
Above example is used for illustrative purposes only rather than limitation of the present invention, the technology people in relation to technical field
Member, without departing from the spirit and scope of the present invention, can also make various transformation or variation.Therefore, it is all equivalent
Technical solution should also belong to scope of the invention, should be limited by each claim.
Claims (6)
- The pea gravel concreten 1. a kind of C25 misfires, is mixed in proportion including cement, water, coarse aggregate, fine aggregate, water-reducing agent It is formulated, which is characterized in that every cubic metre of C25 misfires percentage in pea gravel concreten, and component includes：Cement 12~14%,Water 7~8%,Coarse aggregate 44~45%,Fine aggregate 32~34%,Water-reducing agent 0.1~0.3%,Wherein：The cement be with 42.5 grades of Portland cements, the coarse aggregate for 5~16mm of grain size lime stones or Dolomite；The fine aggregate is 2.8 limestone sand of fineness modulus or is 2.9 dolomite sand of fineness modulus, and the water-reducing agent is High-performance polycarboxylic acids water reducing agent.
- The pea gravel concreten 2. C25 as described in claim 1 misfires, which is characterized in that the apparent density of the lime stone is 2700kg/m3, tight packing density 1450kg/m3, clay content 1.2%, clod content is 0.3/%, crush index 16%, Elongated particles are 1.1%.
- The pea gravel concreten 3. C25 as described in claim 1 misfires, which is characterized in that the apparent density of the dolomite is 2790kg/m3, tight packing density 1470kg/m3, clay content 0.6%, clod content is 0.2/%, crush index 15%, Elongated particles are 1.2%.
- The pea gravel concreten 4. C25 as described in claim 1 misfires, which is characterized in that the dolomite sand system uses bulk The mechanism dolomite sand that the coarse aggregate dolomite crushes.
- The pea gravel concreten 5. C25 as described in claim 1 misfires, which is characterized in that the limestone sand system uses bulk The mechanism limestone sand that the coarse aggregate limestone crushing forms.
- The pea gravel concreten 6. C25 as described in claim 1 misfires, which is characterized in that the water-reducing agent is the poly- carboxylic of high-performance Sour water-reducing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710001696.3A CN108264290A (en) | 2017-01-03 | 2017-01-03 | A kind of C25 misfires pea gravel concreten |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710001696.3A CN108264290A (en) | 2017-01-03 | 2017-01-03 | A kind of C25 misfires pea gravel concreten |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108264290A true CN108264290A (en) | 2018-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710001696.3A Pending CN108264290A (en) | 2017-01-03 | 2017-01-03 | A kind of C25 misfires pea gravel concreten |
Country Status (1)
| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114276058A (en) * | 2021-12-23 | 2022-04-05 | 北京城建亚泰金砼混凝土有限公司 | Non-ignition concrete and preparation method thereof |
| CN115806410A (en) * | 2021-09-15 | 2023-03-17 | 南通市建设混凝土有限公司 | Anti-bending, anti-impact, anti-explosion and shockproof steel fiber concrete and preparation process thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100615674B1 (en) * | 2005-05-30 | 2006-08-25 | 김천수 | High strength concrete |
| CN105948618A (en) * | 2016-04-28 | 2016-09-21 | 十九冶成都建设有限公司 | Non-sparking concrete prepared by utilizing machine-made sand and preparation method thereof |
| CN105948616A (en) * | 2016-04-28 | 2016-09-21 | 十九冶成都建设有限公司 | Non-sparking concrete and preparation method therefor |
| CN106082796A (en) * | 2016-06-06 | 2016-11-09 | 北京中德新亚建筑技术有限公司 | One is misfired pea gravel concreten and preparation method thereof |
-
2017
- 2017-01-03 CN CN201710001696.3A patent/CN108264290A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100615674B1 (en) * | 2005-05-30 | 2006-08-25 | 김천수 | High strength concrete |
| CN105948618A (en) * | 2016-04-28 | 2016-09-21 | 十九冶成都建设有限公司 | Non-sparking concrete prepared by utilizing machine-made sand and preparation method thereof |
| CN105948616A (en) * | 2016-04-28 | 2016-09-21 | 十九冶成都建设有限公司 | Non-sparking concrete and preparation method therefor |
| CN106082796A (en) * | 2016-06-06 | 2016-11-09 | 北京中德新亚建筑技术有限公司 | One is misfired pea gravel concreten and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115806410A (en) * | 2021-09-15 | 2023-03-17 | 南通市建设混凝土有限公司 | Anti-bending, anti-impact, anti-explosion and shockproof steel fiber concrete and preparation process thereof |
| CN114276058A (en) * | 2021-12-23 | 2022-04-05 | 北京城建亚泰金砼混凝土有限公司 | Non-ignition concrete and preparation method thereof |
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Application publication date: 20180710 |