CN107010905A - A kind of floatability cement base vegetation base material and preparation method - Google Patents

A kind of floatability cement base vegetation base material and preparation method Download PDF

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Publication number
CN107010905A
CN107010905A CN201710215258.7A CN201710215258A CN107010905A CN 107010905 A CN107010905 A CN 107010905A CN 201710215258 A CN201710215258 A CN 201710215258A CN 107010905 A CN107010905 A CN 107010905A
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cement
floatability
base material
water
vegetation base
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Inventor
张建业
陈旭
王毅
王建伟
董浩
曲艳召
栗涛
黎春海
林瑞
王鹤錕
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TIANJIN RESEARCH INSTITUTE OF BUILDING SCIENCE Co Ltd
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TIANJIN RESEARCH INSTITUTE OF BUILDING SCIENCE Co Ltd
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Priority to CN201710215258.7A priority Critical patent/CN107010905A/en
Publication of CN107010905A publication Critical patent/CN107010905A/en
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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
    • 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
    • C04B28/06—Aluminous cements
    • C04B28/065—Calcium aluminosulfate cements, e.g. cements hydrating into ettringite
    • 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
    • C04B28/06—Aluminous 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
    • 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
    • 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
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • 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
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • 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
    • C04B2111/40—Porous or lightweight materials
    • C04B2111/42—Floating materials
    • 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
    • C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
    • 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

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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)
  • Revetment (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The invention discloses a kind of floatability cement base vegetation base material and preparation method, a kind of floatability cement base vegetation base material is made of following raw materials：The flyash of quick-hardening cement, general-purpose cement, three-level and ratings above, S95 grades and ratings above miberal powder, fineness are the floating bead of the mesh of 200 mesh 500, and volumetric concentration is 30% hydrogen peroxide, water, adjustable solidification agent, water reducer, exciting agent, waterproofing agent.The floatability cement base vegetation base material of the present invention is a kind of cement based foam material of inside full of a certain proportion of connection and sealed porosity, with lightweight, insulation, sound insulation, do not burn, low-elasticity-modulus, high resistance to advantage of waiting so long, with good volume stability, higher intensity and preferable ageing-resistant performance, simultaneously, material has substantial amounts of space in itself, larger specific surface area, is conducive to the formation of microbial film, with certain water body purification function.Normal temperature is only needed to prepare, technique is simple, is easy to mass produce and applies.

Description

A kind of floatability cement base vegetation base material and preparation method
Technical field
The invention belongs to water body purification, reparation, landscape engineering field, and in particular to a kind of floatability cement base vegetation base material And preparation method.
Background technology
Fast development and urbanization process with China's economy accelerate, and the river pollution problem in China urban area becomes In serious.At present, the urban waters in the whole nation 90% are by severe contamination, and 50% cities and towns water source does not meet drinking water standard, 40% water source can not be drunk.Long-term urbanization causes serious shadow with industrialization to urban river ecosystem health situation Ring, river ecosystem reparation gradually causes the attention of people.
Ecological floating island is a kind of water quality for eutrophication, using ecological engineering principle, COD, nitrogen, phosphorus in degradation water Content artificial floating island.It can increase substantially water transparency, while water quality index is also improved, especially It is to have good inhibition to algae.Ecological floating island is the Root Absorption water using plant to the topmost effect of purification of water quality In Eutrophication materials, such as total phosphorus, ammonia nitrogen, organic matter so that the nutrition of water body is shifted, mitigate water body due to envelope Close or water body that self-loopa deficiency is brought is stench, eutrophication.
At present, artificial floating island carrier material is more based on foam, foam composition metal and high-molecular organic material, although this A little materials have the advantages that low cost, manufacturing process are simple, but there is also poor durability, not environmentally, the protrusion such as unsustainable asks Topic.With deepening continuously that inorganic lightweight material is studied, inorganic chinampa carrier material largely occurs, and University Of Tianjin uses foam glass Glass is prepared for inorganic floating body material, but its production process is related to high temperature preparation, adds preparation difficulty.Chinese patent 201210121177.8 are prepared for water storage type vegetation base material using lightweight cellular concrete material, with excellent water suction retaining energy Power, can meet vegetation growth demand, but its water absorption rate is higher, is not particularly suited for chinampa carrier material.Also many researchers adopt Chinampa carrier is made as packing material with light granular materials such as haydite, vermiculite, expanded perlite, zeolite, float stones, to chinampa Resistance to overturning and practicality carried out substantial amounts of experimental study, it is seen then that inorganic material in the future be chinampa carrier material hair Open up one of direction.
Goal of the invention
The purpose of the present invention is to overcome the shortcoming and defect of prior art there is provided a kind of low-density, high intensity, specific surface area Greatly, nontoxic, ageing-resistant, the inexpensive floatability cement base vegetation base material suitable for ecological floating island carrier.
Second object of the present invention is to provide a kind of preparation method of floatability cement base vegetation base material.
Technical scheme is summarized as follows：
A kind of floatability cement base vegetation base material, is made by quality of following raw materials：Quick-hardening cement 10%-45%, it is general 0%-8%, S95 grades of the flyash of cement 10%-40%, three-level and ratings above and ratings above miberal powder 0%-8%, fineness is The floating bead 0%-8% of the mesh of 200 mesh -500, volumetric concentration is 30% hydrogen peroxide 2%-4%, water 22%-29%, adjustable solidification agent 0.3%- 1.0%, water reducer 0.06%-0.65%, exciting agent 0.05%-0.33%, waterproofing agent 0.37%-1.4%.
The preferred 3%-7% of flyash of three-level and ratings above, S95 grades and the preferred 3%-7% of ratings above miberal powder, fineness For the preferred 3%-6% of floating bead of the mesh of 200 mesh -500.
Quick-hardening cement be quick hardening sulphoaluminate cement or fast hard iron aluminate cement, the quick hardening sulphoaluminate cement it is strong It is 42.5,52.5,62.5 or 72.5 to spend grade；The strength grade of the fast hard iron aluminate cement be 42.5,52.5,62.5 or 72.5。
It is preferred that, general-purpose cement is that strength grade is 42.5,42.5R, 52.5,52.5R, 62.5,62.5R silicate cement Mud, strength grade be 42.5,42.5R, 52.5,52.5R Portland cements, strength grade be 42.5,42.5R, 52.5, 52.5R portland slag cements, strength grade are 42.5,42.5R, 52.5,52.5R volcanoes grey matter silicate cement, strength grade For 42.5,42.5R, 52.5,52.5R Portland fly ash cements or strength grade be 42.5,42.5R, 52.5,52.5R be combined Portland cement.
Adjustable solidification agent is preferably lithium carbonate or sodium carbonate.
Water reducer is preferably UNF-5A naphthalene water reducers, UNF-5B naphthalene water reducers, UF sulfamate water reducers, MPC- A polycarboxylate water-reducers or PCA-I polycarboxylate water-reducers.
Exciting agent is preferably manganese dioxide, potassium permanganate or iron chloride.
Waterproofing agent is preferably calcium stearate powder or KY-1 organosilicon powders.
The preparation method of above-mentioned floatability cement base vegetation base material, comprises the following steps：Raw material is weighed, will be therein fast hard The flyash of cement, general-purpose cement, three-level and ratings above, S95 grades and ratings above miberal powder, fineness are the purpose of 200 mesh -500 Floating bead, adjustable solidification agent, exciting agent, waterproofing agent is put into agitated kettle, and 1min-2min is stirred under the conditions of 130-150 turns/min, is added Water and water reducer, stir 2min-3min under conditions of 130-150 turns/min of rotating speed, then under conditions of 260-290 turns/min 1min-2min is stirred, hydrogen peroxide is added, 20-30s is stirred under conditions of 130-150 turns/min of rotating speed, pours into mould, film Form removal after covering curing, 2h-3h, continues film covering curing 14-28d, cuts into required shape.
The floatability cement base vegetation base material of the present invention is a kind of inside full of a certain proportion of connection and sealed porosity Cement based foam material, pore volume accounts for 75%-90%, wherein blind hole more than 50%, and pore opening 0.1mm-5mm has Lightweight, insulation, sound insulation, do not burn, low-elasticity-modulus, high resistance to advantage of waiting so long be in the novel inorganic light material of one, material of the invention Material only needs normal temperature to prepare, and technique is simple, is easy to mass produce and applies.Compared with current material, with good body Product stability, higher intensity and preferable ageing-resistant performance.Meanwhile, material has substantial amounts of space, larger ratio table in itself Area, is conducive to the formation of microbial film, with certain water body purification function.
Embodiment
Naphthalene water reducer such as UNF-5A, UNF-5B naphthalene water reducer is that Co., Ltd of Tianjin Institute of Building Research goes out Sell.
Sulfamate water reducer such as UF sulfamate water reducers are that Co., Ltd of Tianjin Institute of Building Research goes out Sell.
Polycarboxylate water-reducer such as MPC-A polycarboxylate water-reducers are the limited sale of Tianjin Institute of Building Research；PCA-I gathers Carboxylic acid water reducer is sold for Jiangsu Subotexin Material Co., Ltd.
With reference to specific embodiment, the present invention is further illustrated.
Embodiment 1- embodiments 8 are shown in Table 1.
Table 1 (unit of each material is quality, by gram exemplified by or kilogram or other mass units)
In table 1：
The strength grade of each quick hardening sulphoaluminate cement is 42.5, is 52.5,62.5 or 72.5 replacements with strength grade The quick hardening sulphoaluminate cement strength grade 42.5 of embodiment 1, respectively the other the same as in Example 1, floatability cement base vegetation base The raw material of material.
The strength grade of each fast hard iron aluminate cement is 42.5, is 52.5,62.5 or 72.5 replacements with strength grade The hard iron aluminate cement strength grade 42.5 of embodiment 2, respectively the other the same as in Example 2, floatability cement base vegetation base material Raw material.
The strength grade of each portland cement is 42.5, with strength grade 42.5R, 52.5,52.5R, 62.5 or 62.5R The strength grade 42.5 of the portland cement of alternate embodiment 1, respectively the other the same as in Example 1, floatability cement base vegetation base The raw material of material.
The strength grade of each Portland cement is 42.5, is substituted and implemented with strength grade 42.5R, 52.5,52.5R The strength grade 42.5 of the Portland cement of example 2, the other the same as in Example 2, respectively floatability cement base vegetation base material Raw material.
The strength grade of portland slag cement is 42.5, with strength grade 42.5R, 52.5,52.5R alternate embodiments 3 Portland slag cement strength grade 42.5, the original of the other the same as in Example 3, respectively floatability cement base vegetation base material Material.
The strength grade of volcano grey matter silicate cement is 42.5, with strength grade 42.5R, 52.5,52.5R alternate embodiments The strength grade 42.5 of 4 volcano grey matter silicate cement, the other the same as in Example 4, respectively floatability cement base vegetation base material Raw material.
The strength grade of Portland fly ash cement is 42.5, with strength grade 42.5R, 52.5,52.5R alternate embodiments The strength grade 42.5 of 5 Portland fly ash cement, the other the same as in Example 5, respectively floatability cement base vegetation base material Raw material.
Composite Portland cement strength grade is 42.5, with strength grade 42.5R, 52.5,52.5R alternate embodiments 6 The strength grade 42.5 of composite Portland cement, the raw material of other be the same as Examples 6, respectively floatability cement base vegetation base material.
Embodiment 9
The preparation method of floatability cement base vegetation base material, comprises the following steps：
Raw material is weighed by embodiment 1, by quick-hardening cement therein, general-purpose cement, flyash, miberal powder, floating bead, adjustable solidification agent, Exciting agent, waterproofing agent is put into agitated kettle, and 1.5min is stirred under the conditions of 140 turns/min, water and water reducer is added, in rotating speed 2.5min is stirred under conditions of 140 turns/min, then 1.5min is stirred under conditions of 280 turns/min, hydrogen peroxide is added, in rotating speed 25s is stirred under conditions of 140 turns/min, form removal after mould, film covering curing, 2.5h is poured into, continues film covering curing 20d, cuts into required shape.The floatability cement base vegetation matrix density and intensity prepared is shown in Table 2.
Embodiment 10
The preparation method of floatability cement base vegetation base material, comprises the following steps：
With the raw material of the raw material alternate embodiment 1 of embodiment 2, remaining be the same as Example 9.The floatability cement base prepared Vegetation matrix density and intensity are shown in Table 2.
Embodiment 11
The preparation method of floatability cement base vegetation base material, comprises the following steps：
With the raw material of the raw material alternate embodiment 1 of embodiment 3, remaining be the same as Example 9.The floatability cement base prepared Vegetation matrix density and intensity are shown in Table 2.
Embodiment 12
The preparation method of floatability cement base vegetation base material, comprises the following steps：
Raw material is weighed by embodiment 4, by quick-hardening cement therein, general-purpose cement, flyash, miberal powder, floating bead, adjustable solidification agent, Exciting agent, waterproofing agent is put into agitated kettle, and 1min is stirred under the conditions of 130 turns/min, water and water reducer is added, in rotating speed 130 Turn/min under conditions of stir 2min, then stir under conditions of 260 turns/min 1min, add hydrogen peroxide, 130 turns of rotating speed/ 20s is stirred under conditions of min, form removal after mould, film covering curing, 2h is poured into, continues film covering curing 14d, cuts into Required shape.The floatability cement base vegetation matrix density and intensity prepared is shown in Table 2.
Embodiment 13
The preparation method of floatability cement base vegetation base material, comprises the following steps：
With the raw material of the raw material alternate embodiment 4 of embodiment 5, remaining be the same as Example 12.The floatability cement prepared Base vegetation matrix density and intensity are shown in Table 2.
Embodiment 14
The preparation method of floatability cement base vegetation base material, comprises the following steps：
With the raw material of the raw material alternate embodiment 4 of embodiment 6, remaining be the same as Example 12.The floatability cement prepared Base vegetation matrix density and intensity are shown in Table 2.
Embodiment 15
The preparation method of floatability cement base vegetation base material, comprises the following steps：
Raw material is weighed by embodiment 7, by quick-hardening cement therein, general-purpose cement, flyash, miberal powder, floating bead, adjustable solidification agent, Exciting agent, waterproofing agent is put into agitated kettle, and 2min is stirred under the conditions of 150 turns/min, water and water reducer is added, in rotating speed 150 Turn/min under conditions of stir 3min, then stir under conditions of 290 turns/min 2min, add hydrogen peroxide, 150 turns of rotating speed/ 30s is stirred under conditions of min, form removal after mould, film covering curing, 3h is poured into, continues film covering curing 28d, cuts into Required shape.The floatability cement base vegetation matrix density and intensity prepared is shown in Table 2.
Embodiment 16
The preparation method of floatability cement base vegetation base material, comprises the following steps：
With the raw material of the raw material alternate embodiment 7 of embodiment 8, remaining be the same as Example 15.The floatability cement prepared Base vegetation matrix density and intensity are shown in Table 2.
Table 2
Density (kg/m3) Intensity (MPa)
Embodiment 9 560 1.55
Embodiment 10 560 1.70
Embodiment 11 600 1.85
Embodiment 12 540 1.5
Embodiment 13 650 2.2
Embodiment 14 650 2.7
Embodiment 15 500 2.0
Embodiment 16 560 2.2

Claims (9)

1. a kind of floatability cement base vegetation base material, it is characterized in that being made by quality of following raw materials：Quick-hardening cement 10%- 0%-8%, S95 grades of the flyash of 45%, general-purpose cement 10%-40%, three-level and ratings above and ratings above miberal powder 0%- 8%, fineness is the floating bead 0%-8% of the mesh of 200 mesh -500, and volumetric concentration is 30% hydrogen peroxide 2%-4%, water 22%-29%, is adjusted Solidifying agent 0.3%-1.0%, water reducer 0.06%-0.65%, exciting agent 0.05%-0.33%, waterproofing agent 0.37%-1.4%.
2. a kind of floatability cement base vegetation base material according to claim 1, it is characterized in that the three-level and ratings above Flyash be 3%-7%, S95 grade and ratings above miberal powder are 3%-7%, and fineness is that the floating bead of the mesh of 200 mesh -500 is 3%- 6%.
3. a kind of floatability cement base vegetation base material according to claim 1 or 2, it is characterized in that the quick-hardening cement is fast Hardening sulphoaluminate cement or fast hard iron aluminate cement, the strength grade of the quick hardening sulphoaluminate cement is 42.5,52.5, 62.5 or 72.5；The strength grade of the fast hard iron aluminate cement is 42.5,52.5,62.5 or 72.5.
4. a kind of floatability cement base vegetation base material according to claim 1 or 2, it is characterized in that the general-purpose cement is strong Degree grade be 42.5,42.5R, 52.5,52.5R, 62.5,62.5R portland cement, strength grade be 42.5,42.5R, 52.5th, 52.5R Portland cements, strength grade are 42.5,42.5R, 52.5,52.5R portland slag cements, intensity etc. Level be 42.5,42.5R, 52.5,52.5R volcanoes grey matter silicate cement, strength grade be 42.5,42.5R, 52.5,52.5R fine coal Grey portland cement or strength grade are 42.5,42.5R, 52.5,52.5R composite Portland cements.
5. a kind of floatability cement base vegetation base material according to claim 1 or 2, it is characterized in that the adjustable solidification agent is carbonic acid Lithium or sodium carbonate.
6. a kind of floatability cement base vegetation base material according to claim 1 or 2, it is characterized in that the water reducer is UNF- 5A naphthalene water reducers, UNF-5B naphthalene water reducers, UF sulfamate water reducers, MPC-A polycarboxylate water-reducers or the poly- carboxylics of PCA-I Sour water reducer.
7. a kind of floatability cement base vegetation base material according to claim 1 or 2, it is characterized in that the exciting agent is dioxy Change manganese, potassium permanganate or iron chloride.
8. a kind of floatability cement base vegetation base material according to claim 1 or 2, it is characterized in that the waterproofing agent is tristearin Sour calcium powder or KY-1 organosilicon powder.
9. the preparation method of one of claim 1-8 floatability cement base vegetation base material, it is characterized in that comprising the following steps：Claim Raw material is taken, by quick-hardening cement therein, general-purpose cement, the flyash of three-level and ratings above, S95 grades and ratings above miberal powder, Fineness is the floating bead of the mesh of 200 mesh -500, and adjustable solidification agent, exciting agent, waterproofing agent is put into agitated kettle, and/min conditions are turned in 130-150 Lower stirring 1min-2min, adds water and water reducer, turn in rotating speed 130-150/min under conditions of stir 2min-3min, then 1min-2min is stirred under conditions of 260-290 turns/min, hydrogen peroxide is added, stirred under conditions of 130-150 turns/min of rotating speed 20-30s, pours into form removal after mould, film covering curing, 2h-3h, continues film covering curing 14-28d, cuts into required shape Shape.
CN201710215258.7A 2017-04-02 2017-04-02 A kind of floatability cement base vegetation base material and preparation method Pending CN107010905A (en)

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CN108793903A (en) * 2018-07-04 2018-11-13 黄明红 A kind of preparation method of ultralight foamed concrete compound insulating material
CN108821710A (en) * 2018-07-04 2018-11-16 傅璐桦 A kind of expansion type energy-saving heat preserving fire proofing material and its preparation process
CN109626586A (en) * 2019-01-25 2019-04-16 天津市城市新海绵环保科技有限公司 A kind of multifunctional ecological chinampa and preparation method thereof
CN113443870A (en) * 2021-06-01 2021-09-28 武汉理工大学 Floating plate capable of purifying dye wastewater and preparation method thereof

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CN113443870B (en) * 2021-06-01 2022-12-09 武汉理工大学 Floating plate capable of purifying dye wastewater and preparation method thereof

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Application publication date: 20170804