CN110194630A - A kind of red mud-Phosphorus Slag-cement concrete preparation method - Google Patents
A kind of red mud-Phosphorus Slag-cement concrete preparation method Download PDFInfo
- Publication number
- CN110194630A CN110194630A CN201910637519.3A CN201910637519A CN110194630A CN 110194630 A CN110194630 A CN 110194630A CN 201910637519 A CN201910637519 A CN 201910637519A CN 110194630 A CN110194630 A CN 110194630A
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- CN
- China
- Prior art keywords
- red mud
- phosphorus slag
- cement
- concrete preparation
- cement concrete
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
- B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
- B28B1/0873—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould the mould being placed on vibrating or jolting supports, e.g. moulding tables
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
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- 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)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of red mud-Phosphorus Slag-cement concrete preparation methods, Phosphorus Slag, red mud are replaced part ordinary portland cement according to a certain percentage, and (Phosphorus Slag: red mud: ordinary portland cement blending, which is compared, prepares novel built green cement for 25:10:65), the compounding cement is stirred and evenly mixed with fine sand, rubble, high efficiency water reducing agent and mixing water, it pours into die trial and molding of vibrating, certain time is conserved under proper condition, can get stable mechanical property, cheap, environmentally protective qualified concrete.The present invention prepares concrete using the red mud harmful to environment, Phosphorus Slag substitution part high energy consumption cement, red mud can effectively be mitigated, Phosphorus Slag is largely stored up and caused stress to environment, reduce the usage amount of high energy consumption cement simultaneously, have many advantages, such as it is environmental-friendly, have a extensive future, suitable large-scale application.
Description
Technical field
The present invention relates to solid waste resource recoveries to utilize technical field, concretely relates to a kind of using electric furnace legal system
The red mud substitution part ordinary portland cement that the Phosphorus Slag and aluminum oxide industry that standby yellow phosphorus generates generate prepares the side of concrete
Method.
Background technique
Phosphorus Slag be industrial furnace method prepare yellow phosphorus generation industry byproduct, in the preparation process of yellow phosphorus, coke and
Silica is used as reducing agent and slag forming agent, so that calcium and silica in rock phosphate in powder is formed molten slag, through water quenching cooling after discharge
Phosphorus slag is formed, main chemical compositions are CaO and SiO2.Every production 1t yellow phosphorus generates 8~10t Phosphorus Slag, with yellow phosphorus industry
Continuous production, cause a large amount of yellow phosphorus tailings to be accumulated, cause environmental pollution and the wasting of resources, therefore exploitation benefit is carried out to Phosphorus Slag
With extremely important.Red mud is the byproduct that industrial production aluminium oxide generates, and it is red that every production 1t aluminium oxide discharges 1.0~1.8t
Mud, red mud is mostly delivered to stockyard by alumina producer both at home and abroad at present, is built a dam and is carried out wet process stockpiling, and another common method is
Dry method is stored up after red mud drying is dehydrated and is evaporated.These stacked arrangements not only occupy a large amount of soil, also make to be permitted in red mud
It mostly cannot rationally be utilized using composition, cause the secondary waste of resource.
Current research focuses primarily upon red mud or Phosphorus Slag and part of cement is individually replaced to prepare concrete, or with other mines
Polymer blends material replaces part of cement to prepare concrete together, and the blended amount of red mud or Phosphorus Slag is less.Therefore, one kind is researched and developed to adopt
Using Phosphorus Slag, red mud to refer and synthesize material replacing partial cement to prepare red mud-Phosphorus Slag-cement concrete as mineral simultaneously is extremely to have
Meaning.
Summary of the invention
The object of the present invention is to provide a kind of red mud-Phosphorus Slag-cement concrete preparation methods, realize and reduce solid waste
Object is stored up naturally, reduces cement consumption, mitigates environmental pollution.
Technical solution of the present invention: part ordinary portland cement is replaced to prepare according to a certain percentage Phosphorus Slag, red mud
Novel built green cement.The compounding cement is stirred and evenly mixed with fine sand, rubble, high efficiency water reducing agent and mixing water, pour to
In die trial and using shake table vibration moulding (can also using manually plug and pound, vibrating spear jolt ramming, but needs according to respective standard),
Until trying grind when vibration to have any bounce, vibration that need to continue to surface pulp, concrete test block after molding is using impermeable
The film of water covers surface, is to place 1~2 day to demould in 15~25 DEG C of environment in temperature, and then going to temperature is 18~22 DEG C,
It is conserved under the care environments that relative humidity is 95%, can get stable mechanical property, cheap, environmentally protective after maintenance 28 days
Qualified concrete.
Wherein, novel built green cement above-mentioned prepares ratio are as follows: calculates by weight, Phosphorus Slag: red mud: common silicic acid
Salt cement blending is than being 25:10:65；
In a kind of red mud-Phosphorus Slag-cement concrete preparation method above-mentioned, the fine aggregate is fine sand, and coarse aggregate is
Rubble, the ballast grain sizes are 2~10mm；
In a kind of red mud-Phosphorus Slag-cement concrete preparation method above-mentioned, the mixing water is ordinary tap water, river
It is extensive to obtain channel for water, well water.
Due to the adoption of the above technical scheme, the present invention has the advantages that being replaced using to the harmful red mud of environment, Phosphorus Slag
Concrete is prepared for part high energy consumption cement, can effectively mitigate red mud, Phosphorus Slag is largely stored up and caused stress to environment, simultaneously
The usage amount for reducing high energy consumption cement has many advantages, such as that production is simple, environmental-friendly, has a extensive future, is suitble to large-scale application.
The present invention is used as mineral to refer and synthesize material replacing partial cement simultaneously and prepares red mud-Phosphorus Slag-water using Phosphorus Slag, red mud
Cement concrete not only reduces the use to cement, and red mud and Phosphorus Slag produce synergistic effect in concrete system, and red mud swashs
Activity of the jaundice phosphorus slag in concrete, is conducive to the raising of mechanical performance of concrete.Therefore research and development have environmental-friendly, prospect
Red mud-Phosphorus Slag-cement concrete preparation method of wide, suitable large-scale application has important practical significance.
Detailed description of the invention
Process flow chart Fig. 1 of the invention；
Fig. 2 Phosphorus Slag and red mud XRD spectrum；Phosphorus Slag (a) and red mud (b)；
Fig. 3 Phosphorus Slag and red mud granularmetric composition.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.
The embodiment of the present invention: a kind of red mud-Phosphorus Slag-cement concrete preparation process flow is as shown in Figure 1, raw material yellow phosphorus
Slag and red mud X-ray diffraction analysis (XRD) map also contain as shown in Fig. 2, containing more amorphous silica in Phosphorus Slag
There are more calcium oxide and aluminium oxide；Red mud contains the substances such as quartz, calcium oxide, bloodstone and aluminium oxide in containing.Phosphorus Slag and
Shown in red mud granularmetric composition Fig. 3.By Phosphorus Slag (grain size characteristic D90=53.97 μm, D10=0.93 μm), red mud (grain size characteristic D90
=201.7 μm, D10=2.828 μm), ordinary portland cement according to 25:10:65 prepare novel built green cement.Concrete
Test block preparation method is according to GB/T50080 " Standard for test methods of properties of ordinary concrete mixture " and GB/T50081 " normal concrete
Mechanical test method " specified in concrete test block preparation method preparation molding.By the compounding cement and fine sand, broken
Stone, high efficiency water reducing agent and mixing water stir and evenly mix, and pour into die trial and use shake table vibration moulding, die trial in vibration processes
Until must not having any bounce, vibration that need to continue to surface pulp.It is also possible here to use manually plug and pound, vibrating spear jolt ramming, but
It needs to execute according to respective standard.Concrete test block after molding using fluid-tight film cover surface, temperature be 15~
It places 1~2 day and demoulds in 25 DEG C of environment, then going to temperature is 18~22 DEG C, is supported under the care environments that relative humidity is 95%
Shield can get stable mechanical property, cheap, environmentally protective qualified concrete after maintenance 28 days.
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art,
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection scope of invention.
Claims (4)
1. a kind of red mud-Phosphorus Slag-cement concrete preparation method, it is characterised in that include the following steps: Phosphorus Slag and red
Mud replaces part ordinary portland cement to prepare novel built green cement according to a certain percentage, by the novel built green
Cement is stirred evenly with coarse aggregate, fine aggregate, water-reducing agent and mixing water, is poured into die trial and molding of vibrating, under proper condition
Maintenance obtains red mud-Phosphorus Slag-cement concrete after a certain period of time.
2. red mud-Phosphorus Slag-cement concrete preparation method according to claim 1, it is characterised in that: described is certain
Ratio is by weight, Phosphorus Slag: red mud: ordinary portland cement blending is than being 25:10:65.
3. red mud-Phosphorus Slag-cement concrete preparation method according to claim 1, it is characterised in that: described appropriate
Under the conditions of maintenance certain time be in temperature be places 1~2 day to demould in 15~25 DEG C of environment, then going to temperature is 18~22
DEG C, it is conserved under the care environments that relative humidity is 95%, can get qualified red mud-Phosphorus Slag-coagulating cement after maintenance 28 days
Soil.
4. red mud-Phosphorus Slag-cement concrete preparation method according to claim 1, it is characterised in that: the thin bone
Material is fine sand, and coarse aggregate is rubble, and the ballast grain sizes are 2~10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910637519.3A CN110194630A (en) | 2019-07-15 | 2019-07-15 | A kind of red mud-Phosphorus Slag-cement concrete preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910637519.3A CN110194630A (en) | 2019-07-15 | 2019-07-15 | A kind of red mud-Phosphorus Slag-cement concrete preparation method |
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| Publication Number | Publication Date |
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| CN110194630A true CN110194630A (en) | 2019-09-03 |
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| CN201910637519.3A Pending CN110194630A (en) | 2019-07-15 | 2019-07-15 | A kind of red mud-Phosphorus Slag-cement concrete preparation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114591054A (en) * | 2022-02-07 | 2022-06-07 | 贵州长泰源节能建材股份有限公司 | Red mud aerated brick |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU796214A1 (en) * | 1979-03-26 | 1981-01-15 | институт химии | Light-weigh concrete mix |
| CN85100571A (en) * | 1985-04-01 | 1986-03-10 | 南京工学院 | Phosphoric slag cement |
| CN102167558A (en) * | 2011-01-05 | 2011-08-31 | 同济大学 | Excitant for exciting activity of industrial waste residues of phosphorite ore as well as preparation method and application thereof |
| CN108821716A (en) * | 2018-06-21 | 2018-11-16 | 同济大学 | A kind of ardealite base anticracking grout for wall insulation system |
-
2019
- 2019-07-15 CN CN201910637519.3A patent/CN110194630A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU796214A1 (en) * | 1979-03-26 | 1981-01-15 | институт химии | Light-weigh concrete mix |
| CN85100571A (en) * | 1985-04-01 | 1986-03-10 | 南京工学院 | Phosphoric slag cement |
| CN102167558A (en) * | 2011-01-05 | 2011-08-31 | 同济大学 | Excitant for exciting activity of industrial waste residues of phosphorite ore as well as preparation method and application thereof |
| CN108821716A (en) * | 2018-06-21 | 2018-11-16 | 同济大学 | A kind of ardealite base anticracking grout for wall insulation system |
Non-Patent Citations (4)
| Title |
|---|
| 冯乃谦: "《新实用混凝土大全》", 30 April 2005, 科学出版社 * |
| 刘林焱等: "黄磷尾渣超细粉粒度特性和掺量对混凝土性能的影响", 《武汉工程大学学报》 * |
| 环境保护部环境工程评估中心: "《金属矿采选业环境保护政策法规》", 31 December 2013, 中国环境出版社 * |
| 胡鹏刚等: "磷渣掺合料对水泥混凝土性能的影响及机理探讨", 《混凝土》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114591054A (en) * | 2022-02-07 | 2022-06-07 | 贵州长泰源节能建材股份有限公司 | Red mud aerated brick |
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Application publication date: 20190903 |