CN108439857A - A kind of concrete plug and preparation method thereof - Google Patents

A kind of concrete plug and preparation method thereof Download PDF

Info

Publication number
CN108439857A
CN108439857A CN201810447837.9A CN201810447837A CN108439857A CN 108439857 A CN108439857 A CN 108439857A CN 201810447837 A CN201810447837 A CN 201810447837A CN 108439857 A CN108439857 A CN 108439857A
Authority
CN
China
Prior art keywords
parts
concrete plug
concrete
toughener
carbon fiber
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.)
Pending
Application number
CN201810447837.9A
Other languages
Chinese (zh)
Inventor
肖吕阳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Tong Yute Structure Science And Technology Ltd
Original Assignee
Anhui Tong Yute Structure Science And Technology Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anhui Tong Yute Structure Science And Technology Ltd filed Critical Anhui Tong Yute Structure Science And Technology Ltd
Priority to CN201810447837.9A priority Critical patent/CN108439857A/en
Publication of CN108439857A publication Critical patent/CN108439857A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02Macromolecular compounds
    • C04B26/04Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A kind of concrete plug of present invention offer and preparation method thereof, is related to pipe of concrete technical field, concrete plug of the present invention is made of following raw material:The chopped material of glass microballoon, nanometer grade calcium carbonate, talcum powder, wollastonite, modified carbon fiber, level-one flyash, toughener, early strength agent, polymethyl methacrylate, water.In concrete plug raw material of the present invention, add the chopped material of glass microballoon, toughener, talcum powder level-one flyash, early strength agent and modified carbon fiber, the durability of concrete can be increased, the early strength of concrete can be improved, shorten striking time, save construction time cost and template cost of possession to a certain extent.

Description

A kind of concrete plug and preparation method thereof
Technical field
The present invention relates to pipe of concrete technical fields, and in particular to a kind of concrete plug and preparation method thereof.
Background technology
With the fast development of national economy, the quickening of urbanization process, tubing demand is increasing.Relative to metal Tubing, plastic pipe, it is deep to be favored by design department and using department due to the low cost of concrete plug.Existing market Upper general pipe of concrete is mainly prestressed concrete pipe, pipe of concrete and concrete reinforced pipe, and it is steel that dosage is maximum Reinforced concrete pipe.According to tube-making process difference, pipe-making method can be divided into the methods such as centrifugation, overhang roll, vertical extrusion and vertical vibrating.With Other tube-making processes are compared, and roller-suspending is high with pipe external pressure strength, outer load is great, running pulp, concrete density be not good, impervious The features such as property is good, excellent durability, and be widely adopted.
In the prior art, traditional reinforced concrete pipiline there are poor corrosion resistance, difficult to install, conveyance power of water is poor, close The problem do not grown of the poor, service life of envelope property, and that there are integral strengths is poor, impact strength is poor, high cost is asked for plastic pipe Topic.
Therefore, it is particularly important to develop a kind of concrete plug at low cost, that performance is good.
Invention content
For technical problem in the prior art, a kind of concrete plug of present invention offer and preparation method thereof.
In order to achieve the above object, technical scheme of the present invention is achieved by the following technical programs:
A kind of concrete plug is made of the raw material of following parts by weight:15-25 parts of glass microballoon, nanometer grade calcium carbonate 20- 35 parts, 25-40 parts of talcum powder, 25-40 parts of wollastonite, modified carbon fiber be chopped 15-25 parts of material, 35-65 parts of level-one flyash, 1-2 parts of toughener, 1-3 parts of early strength agent, 1-3 parts of polymethyl methacrylate, 100-180 parts of water.
Preferably, a kind of concrete plug is made of the raw material of following parts by weight:17-23 parts of glass microballoon, nanometer Chopped 18-22 parts of the material of 24-31 parts of calcium carbonate of grade, 29-36 parts of talcum powder, 30-37 parts of wollastonite, modified carbon fiber, first level flour 45-60 parts of coal ash, 1.2-1.8 parts of toughener, 1.5-2.5 parts of early strength agent, 1.5-2.5 parts of polymethyl methacrylate, water 120- 160 parts.
Preferably, a kind of concrete plug is made of the raw material of following parts by weight:20 parts of glass microballoon, nano-scale carbon Chopped 20 parts of the material of 28 parts of sour calcium, 33 parts of talcum powder, 33 parts of wollastonite, modified carbon fiber, 50 parts of level-one flyash, toughener 1.5 parts, 2 parts of early strength agent, 2 parts of polymethyl methacrylate, 140 parts of water.
Preferably, the density of the chopped material of the modified carbon fiber is 1.71-1.78g/cm3
Preferably, the glass microballoon is hollow glass microbead.
Preferably, the toughener is Methyl Methacrylate-Butadiene-Styrene Copolymer, methyl methacrylate- At least one of Organosiliconcopolymere, high glue powder class, phenylethylene toughener.
Preferably, the melt index of the polymethyl methacrylate is 10-20g/10min.
Preferably, the nanometer grade calcium carbonate is the powdered whiting that particle diameter distribution is D50 < 200nm.
Preferably, the early strength agent is one kind in calcium formate, calcium acetate, lithium carbonate.
A kind of preparation method of concrete plug, includes the following steps:Each raw material is weighed according to parts by weight;Glass is micro- Blender is added in the chopped material of pearl, nanometer grade calcium carbonate, talcum powder, wollastonite, modified carbon fiber, level-one flyash, toughener Middle stirring after stirring 10-15min, is added water, early strength agent, polymethyl methacrylate, stirs evenly, obtain mixture;It will mix It closes object to be put into mold, carries out cloth tensioning, apply prestressing force, be prepared into concrete plug;Under normal pressure, by concrete plug Crude product is placed in steam-cured pond, it is quiet stop 1-2h after, be warming up to 60-70 DEG C with 20-23 DEG C/h, constant temperature 3-5h, then in 1.5h It is cooled to room temperature, form removal, you can.
A kind of concrete plug of present invention offer and preparation method thereof, advantage is compared with prior art:
In concrete plug raw material of the present invention, addition glass microballoon, toughener and the chopped material of modified carbon fiber, glass are micro- Pearl forms " core-shell structure copolymer " structure, is dispersed in concrete preferentially by toughener intercalation and package, and modified carbon fiber is chopped material, cunning The addition of mountain flour improves the rigidity, impact resistance, corrosion resistance of material;Level-one flyash has certain pozzolanic activity, The durability of concrete can be increased;Early strength agent is introduced, the early strength of concrete can be improved, shorten striking time, to a certain degree On save construction time cost and template cost of possession.
Concrete plug preparation method of the present invention is at low cost, and concrete plug performance obtained is good, and compactness is good, impervious Good, excellent durability.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, with reference to the embodiment of the present invention pair Technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is a part of the invention Embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making wound The every other embodiment obtained under the premise of the property made labour, shall fall within the protection scope of the present invention.
Embodiment 1:
A kind of concrete plug of the present embodiment is made of the raw material of following parts by weight:15 parts of glass microballoon, nanoscale carbonic acid 20 parts of calcium, 25 parts of talcum powder, 25 parts of wollastonite, modified carbon fiber be chopped 15 parts of material, 35 parts of level-one flyash, 1 part of toughener, 1 part of early strength agent, 1 part of polymethyl methacrylate, 100 parts of water;
Wherein, the density of the chopped material of modified carbon fiber is 1.71g/cm3;Glass microballoon is hollow glass microbead;Toughening Agent is Methyl Methacrylate-Butadiene-Styrene Copolymer;The melt index of polymethyl methacrylate is 10g/10min; Nanometer grade calcium carbonate is the powdered whiting that particle diameter distribution is D50 < 200nm;Early strength agent is calcium formate;
A kind of preparation method of concrete plug of the present embodiment, includes the following steps:Each raw material is weighed according to parts by weight; Glass microballoon, nanometer grade calcium carbonate, talcum powder, wollastonite, the chopped material of modified carbon fiber, level-one flyash, toughener are added Enter in blender and stir, after stirring 10min, water, early strength agent, polymethyl methacrylate is added, stirs evenly, is mixed Object;Mixture is put into mold, cloth tensioning is carried out, applies prestressing force, is prepared into concrete plug;Under normal pressure, it will mix Solidifying soil tubing crude product is placed in steam-cured pond, it is quiet stop 1h after, be warming up to 60 DEG C with 20 DEG C/h, then constant temperature 3h drops in 1.5h It warms to room temperature, form removal, you can.
Embodiment 2:
A kind of concrete plug of the present embodiment is made of the raw material of following parts by weight:25 parts of glass microballoon, nanoscale carbonic acid 35 parts of calcium, 40 parts of talcum powder, 40 parts of wollastonite, modified carbon fiber be chopped 25 parts of material, 65 parts of level-one flyash, 2 parts of toughener, 3 parts of early strength agent, 3 parts of polymethyl methacrylate, 180 parts of water;
Wherein, the density of the chopped material of modified carbon fiber is 1.78g/cm3;Glass microballoon is hollow glass microbead;Toughening Agent is methyl methacrylate-Organosiliconcopolymere, high glue powder class, phenylethylene toughener mix;Polymethylacrylic acid The melt index of methyl esters is 20g/10min;Nanometer grade calcium carbonate is the powdered whiting that particle diameter distribution is D50 < 200nm;It is early strong Agent is calcium acetate;
A kind of preparation method of concrete plug of the present embodiment, includes the following steps:Each raw material is weighed according to parts by weight; Glass microballoon, nanometer grade calcium carbonate, talcum powder, wollastonite, the chopped material of modified carbon fiber, level-one flyash, toughener are added Enter in blender and stir, after stirring 15min, water, early strength agent, polymethyl methacrylate is added, stirs evenly, is mixed Object;Mixture is put into mold, cloth tensioning is carried out, applies prestressing force, is prepared into concrete plug;Under normal pressure, it will mix Solidifying soil tubing crude product is placed in steam-cured pond, it is quiet stop 2h after, be warming up to 70 DEG C with 23 DEG C/h, then constant temperature 5h drops in 1.5h It warms to room temperature, form removal, you can.
Embodiment 3:
A kind of concrete plug of the present embodiment is made of the raw material of following parts by weight:20 parts of glass microballoon, nanoscale carbonic acid Chopped 20 parts of the material of 28 parts of calcium, 33 parts of talcum powder, 33 parts of wollastonite, modified carbon fiber, 50 parts of level-one flyash, toughener 1.5 Part, 2 parts of early strength agent, 2 parts of polymethyl methacrylate, 140 parts of water;
Wherein, the density of the chopped material of modified carbon fiber is 1.74g/cm3;Glass microballoon is hollow glass microbead;Toughening Agent be Methyl Methacrylate-Butadiene-Styrene Copolymer, methyl methacrylate-Organosiliconcopolymere, high glue powder class, Phenylethylene toughener mixes;The melt index of polymethyl methacrylate is 15g/10min;Nanometer grade calcium carbonate is grain Diameter is distributed as the powdered whiting of D50 < 200nm;Early strength agent is lithium carbonate;
A kind of preparation method of concrete plug of the present embodiment, includes the following steps:Each raw material is weighed according to parts by weight; Glass microballoon, nanometer grade calcium carbonate, talcum powder, wollastonite, the chopped material of modified carbon fiber, level-one flyash, toughener are added Enter in blender and stir, after stirring 13min, water, early strength agent, polymethyl methacrylate is added, stirs evenly, is mixed Object;Mixture is put into mold, cloth tensioning is carried out, applies prestressing force, is prepared into concrete plug;Under normal pressure, it will mix Solidifying soil tubing crude product is placed in steam-cured pond, it is quiet stop 1.5h after, be warming up to 65 DEG C with 22 DEG C/h, constant temperature 4h, then in 1.5h It is cooled to room temperature, form removal, you can.
Embodiment 4:
A kind of concrete plug of the present embodiment is made of the raw material of following parts by weight:17 parts of glass microballoon, nanoscale carbonic acid Chopped 18 parts of the material of 24 parts of calcium, 29 parts of talcum powder, 30 parts of wollastonite, modified carbon fiber, 45 parts of level-one flyash, toughener 1.2 Part, 1.5 parts of early strength agent, 1.5 parts of polymethyl methacrylate, 120 parts of water;
Wherein, the density of the chopped material of modified carbon fiber is 1.72g/cm3;Glass microballoon is hollow glass microbead;Toughening Agent is Methyl Methacrylate-Butadiene-Styrene Copolymer, high glue powder class, phenylethylene toughener mix;Poly- methyl The melt index of methyl acrylate is 12g/10min;Nanometer grade calcium carbonate is the heavy carbonic acid that particle diameter distribution is D50 < 200nm Calcium;Early strength agent is calcium formate;
A kind of preparation method of concrete plug of the present embodiment, includes the following steps:Each raw material is weighed according to parts by weight; Glass microballoon, nanometer grade calcium carbonate, talcum powder, wollastonite, the chopped material of modified carbon fiber, level-one flyash, toughener are added Enter in blender and stir, after stirring 11min, water, early strength agent, polymethyl methacrylate is added, stirs evenly, is mixed Object;Mixture is put into mold, cloth tensioning is carried out, applies prestressing force, is prepared into concrete plug;Under normal pressure, it will mix Solidifying soil tubing crude product is placed in steam-cured pond, it is quiet stop 1.2h after, be warming up to 62 DEG C with 21 DEG C/h, constant temperature 3.5h, then in 1.5h Inside it is cooled to room temperature, form removal, you can.
Embodiment 5:
A kind of concrete plug of the present embodiment is made of the raw material of following parts by weight:23 parts of glass microballoon, nanoscale carbonic acid Chopped 22 parts of the material of 31 parts of calcium, 36 parts of talcum powder, 37 parts of wollastonite, modified carbon fiber, 60 parts of level-one flyash, toughener 1.8 Part, 2.5 parts of early strength agent, 2.5 parts of polymethyl methacrylate, 160 parts of water;
Wherein, the density of the chopped material of modified carbon fiber is 1.76g/cm3;Glass microballoon is hollow glass microbead;Toughening Agent be Methyl Methacrylate-Butadiene-Styrene Copolymer, methyl methacrylate-Organosiliconcopolymere, high glue powder class, Phenylethylene toughener mixes;The melt index of polymethyl methacrylate is 18g/10min;Nanometer grade calcium carbonate is grain Diameter is distributed as the powdered whiting of D50 < 200nm;Early strength agent is calcium acetate;
A kind of preparation method of concrete plug of the present embodiment, includes the following steps:Each raw material is weighed according to parts by weight; Glass microballoon, nanometer grade calcium carbonate, talcum powder, wollastonite, the chopped material of modified carbon fiber, level-one flyash, toughener are added Enter in blender and stir, after stirring 14min, water, early strength agent, polymethyl methacrylate is added, stirs evenly, is mixed Object;Mixture is put into mold, cloth tensioning is carried out, applies prestressing force, is prepared into concrete plug;Under normal pressure, it will mix Solidifying soil tubing crude product is placed in steam-cured pond, it is quiet stop 1.8h after, be warming up to 67 DEG C with 22 DEG C/h, constant temperature 4.5h, then in 1.5h Inside it is cooled to room temperature, form removal, you can.
It should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although ginseng According to previous embodiment, invention is explained in detail, it will be understood by those of ordinary skill in the art that:It still can be with Technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features;And These modifications or replacements, the spirit and model of various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution It encloses.

Claims (10)

1. a kind of concrete plug, which is characterized in that a kind of concrete plug is made of the raw material of following parts by weight:Glass The chopped material of 15-25 parts of microballon, 20-35 parts of nanometer grade calcium carbonate, 25-40 parts of talcum powder, 25-40 parts of wollastonite, modified carbon fiber 15-25 parts of material, 35-65 parts of level-one flyash, 1-2 parts of toughener, 1-3 parts of early strength agent, 1-3 parts of polymethyl methacrylate, water 100-180 parts.
2. a kind of concrete plug according to claim 1, which is characterized in that a kind of concrete plug is by following heavy The raw material of amount part is made:17-23 parts of glass microballoon, 24-31 parts of nanometer grade calcium carbonate, 29-36 parts of talcum powder, wollastonite 30-37 Part, chopped 18-22 parts of the material of modified carbon fiber, 45-60 parts of level-one flyash, 1.2-1.8 parts of toughener, early strength agent 1.5-2.5 Part, 1.5-2.5 parts of polymethyl methacrylate, 120-160 parts of water.
3. a kind of concrete plug according to claim 1, which is characterized in that a kind of concrete plug is by following heavy The raw material of amount part is made:20 parts of glass microballoon, 28 parts of nanometer grade calcium carbonate, 33 parts of talcum powder, 33 parts of wollastonite, modified carbon fiber Be chopped 20 parts of material, 50 parts of level-one flyash, 1.5 parts of toughener, 2 parts of early strength agent, 2 parts of polymethyl methacrylate, water 140 Part.
4. a kind of concrete plug according to claim 1 or 2 or 3, which is characterized in that the modified carbon fiber is chopped material The density of material is 1.71-1.78g/cm3.
5. a kind of concrete plug according to claim 1 or 2 or 3, which is characterized in that the glass microballoon is hollow glass Glass microballon.
6. a kind of concrete plug according to claim 1 or 2 or 3, which is characterized in that the toughener is metering system Sour methyl esters-butadiene-styrene copolymer, methyl methacrylate-Organosiliconcopolymere, high glue powder class, phenylethylene toughening At least one of agent.
7. a kind of concrete plug according to claim 1 or 2 or 3, which is characterized in that the polymethyl methacrylate Melt index be 10-20g/10min.
8. a kind of concrete plug according to claim 1 or 2 or 3, which is characterized in that the nanometer grade calcium carbonate is grain Diameter is distributed as the powdered whiting of D50 < 200nm.
9. a kind of concrete plug according to claim 1 or 2 or 3, which is characterized in that the early strength agent be calcium formate, One kind in calcium acetate, lithium carbonate.
10. a kind of preparation method of such as claim 1-9 any one of them concrete plugs, which is characterized in that including following Step:Each raw material is weighed according to parts by weight;By glass microballoon, nanometer grade calcium carbonate, talcum powder, wollastonite, modified carbon fiber It is chopped in material, level-one flyash, toughener addition blender and stirs, after stirring 10-15min, water, early strength agent, poly- first is added Base methyl acrylate, stirs evenly, and obtains mixture;Mixture is put into mold, cloth tensioning is carried out, applies prestressing force, It is prepared into concrete plug;Under normal pressure, concrete plug crude product is placed in steam-cured pond, it is quiet stop 1-2h after, with 20-23 DEG C/ Hour is warming up to 60-70 DEG C, then constant temperature 3-5h is cooled to room temperature, form removal in 1.5h, you can.
CN201810447837.9A 2018-05-11 2018-05-11 A kind of concrete plug and preparation method thereof Pending CN108439857A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810447837.9A CN108439857A (en) 2018-05-11 2018-05-11 A kind of concrete plug and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810447837.9A CN108439857A (en) 2018-05-11 2018-05-11 A kind of concrete plug and preparation method thereof

Publications (1)

Publication Number Publication Date
CN108439857A true CN108439857A (en) 2018-08-24

Family

ID=63203500

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810447837.9A Pending CN108439857A (en) 2018-05-11 2018-05-11 A kind of concrete plug and preparation method thereof

Country Status (1)

Country Link
CN (1) CN108439857A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108947408A (en) * 2018-08-30 2018-12-07 河北建筑工程学院 Conveying concrete duct and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1807051A (en) * 2006-01-09 2006-07-26 张炼 Reinforced concrete resin slurry casting pipe and method for manufacturing the same
CN1944325A (en) * 2006-06-21 2007-04-11 北京蓝资凝石科技有限公司 Method for producing cementitious materials concrete pipe
CN107098645A (en) * 2017-05-08 2017-08-29 天津市滨涛混凝土有限公司 Non-dispersible underwater concrete and preparation method thereof
CN107500646A (en) * 2017-08-16 2017-12-22 同济大学 A kind of Ultralight superelevation ductility concrete and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1807051A (en) * 2006-01-09 2006-07-26 张炼 Reinforced concrete resin slurry casting pipe and method for manufacturing the same
CN1944325A (en) * 2006-06-21 2007-04-11 北京蓝资凝石科技有限公司 Method for producing cementitious materials concrete pipe
CN107098645A (en) * 2017-05-08 2017-08-29 天津市滨涛混凝土有限公司 Non-dispersible underwater concrete and preparation method thereof
CN107500646A (en) * 2017-08-16 2017-12-22 同济大学 A kind of Ultralight superelevation ductility concrete and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108947408A (en) * 2018-08-30 2018-12-07 河北建筑工程学院 Conveying concrete duct and preparation method thereof
CN108947408B (en) * 2018-08-30 2021-03-23 河北建筑工程学院 Concrete pipeline for conveying and preparation method thereof

Similar Documents

Publication Publication Date Title
CN102452832B (en) Straw cement-based microporous building material and preparation method thereof
CN102152501B (en) Baseplate of integral heat-preservation and energy-saving plate and preparation method thereof
CN102964084B (en) Foaming concrete for foam agent
CN104478382A (en) Light-weight reinforced gypsum plaster board and preparation method thereof
CN111574119A (en) Foam concrete with high light weight and performance and preparation method thereof
CN107099210A (en) A kind of anticracking waterproof coating and preparation method
CN102964080A (en) Composite foaming agent for concrete
CN104402348A (en) Iron tailing powder foam concrete and preparation method thereof
CN110330289A (en) A kind of soil-solidified-agent, soil solidification soil and preparation method thereof
CN108439857A (en) A kind of concrete plug and preparation method thereof
CN104817338A (en) Method for preparing alkali-activated steel slag/mineral slag lightweight foam material
CN108892446A (en) A kind of glass fiber reinforcement vegetation form cellular concrete and its construction method
CN201211699Y (en) Fly ash insulation board manufacture apparatus
CN103497290B (en) Redispersible polymer latex powder and preparation method thereof
CN107805027A (en) A kind of copper tailing pervious concrete and preparation method thereof
CN102336585B (en) Compound foamed concrete and floating bed
CN104761865A (en) A one-step urea-formaldehyde resin foam preparing method by adopting urea and formaldehyde as raw materials
CN103896531B (en) Mix high-strength concrete tubular pile and the production method thereof of levigate rice hull ash
CN104986999A (en) Anti-freezing aerated bricks containing quartz sand
CN102086285A (en) Eggshell filler having high beta nucleation on polypropylene and preparation method thereof
CN106587867A (en) Building block made of river sand as raw material and preparation method of building block
CN108083837A (en) A kind of chopped basalt fibre toughening silicate light-weight aggregate and preparation method thereof
CN110950609A (en) Ultra-light heat-preservation aerated concrete for prefabricated parts and preparation method thereof
CN103834137B (en) Embedded Polyethylene Glycol cystosepiment and preparation method thereof
CN105622015B (en) A kind of physical foaming cement is incubated board production technology

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20180824

RJ01 Rejection of invention patent application after publication