CN106587777A - Autoclaved aerated concrete block doped with magnetic polypropylene fiber and preparation method of autoclaved aerated concrete block - Google Patents

Autoclaved aerated concrete block doped with magnetic polypropylene fiber and preparation method of autoclaved aerated concrete block Download PDF

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Publication number
CN106587777A
CN106587777A CN201611167505.2A CN201611167505A CN106587777A CN 106587777 A CN106587777 A CN 106587777A CN 201611167505 A CN201611167505 A CN 201611167505A CN 106587777 A CN106587777 A CN 106587777A
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parts
aerated concrete
concrete block
magnetic
autoclaved aerated
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CN201611167505.2A
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侯风光
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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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
    • 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
    • C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
    • C04B2111/00258—Electromagnetic wave absorbing or shielding 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
    • 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
    • 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
    • C04B2111/52—Sound-insulating 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
    • C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
    • C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Ceramic Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The invention discloses an autoclaved aerated concrete block doped with magnetic polypropylene fiber and a preparation method of the autoclaved aerated concrete block. The concrete block is prepared from, by weight, 35-45 parts of coal ash, 5-8 parts of desulphurization building gypsum, 12-18 parts of quick lime, 4-5 parts of carbide slag, 3-5 parts of carbonized straw powder, 10-15 parts of cement, 0.1-0.2 part of polyethyleneimine, 1-2 parts of waste magnetic powder, 3-5 parts of polypropylene particles, 0.001-0.002 part of oxidized graphene, 0.1-0.2 part of silane coupling agent kh550, 0.3-0.5 part of aluminum powder paste, 0.01-0.02 part of dopamine hydrochloride, 10-15 parts of absolute ethyl alcohol, an appropriate amount of Tris-HC1 and an appropriate amount of water.

Description

A kind of autoclave aerated concrete building block of doped magnetic polypropylene fibre and its preparation Method
Technical field
The present invention relates to autoclave aerated concrete building block technical field, more particularly to a kind of doped magnetic polypropylene fibre Autoclave aerated concrete building block and preparation method thereof.
Background technology
Aerated bricks are autoclave aerated concrete building block, and abbreviation aerated bricks are obtained by the production of autoclave at high temperature apparatus and process, It is a kind of energy-saving, function admirable New Building Materials with several functions such as lightweight, insulation, antidetonation sound insulations, Foreign applications are relatively broad, and with wideling popularize for domestic construction ideas of energy-saving, the application of aerated bricks is also progressively taken seriously, city Also begin to progressively emerge in large numbers substantial amounts of aerating brick product on.
In existing aerating brick product, cement-lime-powder ash air-entrained concrete because its have material source extensively, product Quality preferably, realizes the comprehensive utilization of flyash, occupies the larger market share.Multinomial recently as environmental improvement is arranged Appearance is applied, thermal power generation corporations gradually decrease, the yield reduction of flyash causes flyash rise in price, additionally due to fine coal Grey dispersibility is stronger, causes base substrate easily to collapse mould, and finished product fragility is big, easily occur during transport and use hollowing, breakage, Problems of crack, in order to improve this phenomenon, some research units carry out enhancing modified process using organic or inorfil, Such as《Chopped basalt fibre strengthens the experimental study of low heat-conducting type air entrained concrete》、《Fiber reinforcement type steam-pressing aero-concrete Building block mechanical property research》Deng article, impact of several fibrous materials to block performance is explored, as a result show fibrous material Addition effectively improves the comprcssive strength and rupture strength of building block, and fragility is improved, but how to ensure fiber Storeroom be uniformly distributed and the compatibility between fiber and base material is still complex problem, govern these methods Popularization and application.
The content of the invention
A kind of defect in order to make up prior art of the invention, there is provided steam pressurized coagulation of doped magnetic polypropylene fibre Earth building blocks and preparation method thereof, to improve the filler modified single effect of traditional fibre, the defect of bad dispersibility, while also utilizing Waste material is recycled, and reduces production cost.
The present invention is achieved by the following technical solutions：
A kind of autoclave aerated concrete building block of doped magnetic polypropylene fibre, the concrete segment by following weight portion raw material Make：Flyash 35-45, desulphurization building gypsum 5-8, quick lime 12-18, carbide slag 4-5, carbonization powder of straw 3-5, cement 10- 15th, polyethyleneimine 0.1-0.2, useless magnetic powder 1-2, polypropylene particles 3-5, graphene oxide 0.001-0.002, silane coupler Kh550 0.1-0.2, aluminium powder cream 0.3-0.5, Dopamine Hydrochloride 0.01-0.02, dehydrated alcohol 10-15, Tris-HCl buffering are molten Appropriate liquid, appropriate amount of water.
A kind of preparation method of the autoclave aerated concrete building block of described doped magnetic polypropylene fibre includes following step Suddenly：
（1）Silane coupler kh550 is mixed with dehydrated alcohol, useless magnetic powder, graphene oxide, system stirring mixing is subsequently added into Ball-milling treatment 40-50min is carried out after uniform, polypropylene particles are subsequently added, is dried after stirring, subsequently melt mixed material Melt spinning, obtain magnetic polypropylene fibre standby；
（2）The water of 20-25 weight portions is taken, Dopamine Hydrochloride is added, is stirred to it and is added Tris-HCl bufferings molten after being completely dissolved Liquid, regulation system pH value is 8-8.5, is subsequently added magnetic polypropylene fibre, immersion treatment 32-48h, and process is filtered after terminating, Gained fiber drying is standby after processing, and gained filtrate is standby；
（3）By step（2）Resulting material puts into stirring pulping in cast blender together with other residual componentss, and mixing time is 5-8min；
（4）The slurry for stirring is injected into die for molding, the subsequently demoulding, cutting after precuring 3-4h under the conditions of 50-60 DEG C, The base substrate for obtaining enters that kettle is steam-cured, and making condition is：Temperature：190-195 DEG C, pressure：1.2-1.6MPa, time 14-16h；
（5）Go out kettle after steam-cured end, Jing cleanings, packaging get product.
The present invention prepare concrete segment advantage be：It is common by useless magnetic powder, graphene oxide, silane coupler with one kind The magnetic polypropylene fibre filler that mixed modification is obtained replaces traditional polypropylene fibre, and it is than traditional polypropylene fibre to mixed Solidifying earth building blocks are better in the improvement of mechanical property, and building block after filling has excellent cracking resistance, while giving building block The function of shielding electromagnetic radiation, so as to improve the anti-external interference of building, protects the safety of habitant；Additionally, this magnetic Polypropylene fibre surface Jing dopamine solutions are processed, and its surface activity is higher, and hydrophilic is improved, and can promote cement hydration process, Accelerate building block hardening；The present invention is had by meticulous proportioning, synergism between plurality of raw materials in economic and environment-friendly mode The air-entrained concrete building block of good combination property, its heat storing and heat preserving, impervious water-fast, porous cracking resistance, with very high popularization and application Value.
Specific embodiment
A kind of autoclave aerated concrete building block of doped magnetic polypropylene fibre, the concrete segment is by following weight portion Raw material is made：Flyash 35, desulphurization building gypsum 5, quick lime 12, carbide slag 4, carbonization powder of straw 3, cement 10, polyethyleneimine Amine 0.1, useless magnetic powder 1, polypropylene particles 3, graphene oxide 0.001, silane coupler kh550 0.1, aluminium powder cream 0.3, hydrochloric acid Dopamine 0.01, dehydrated alcohol 10, Tris-HCl buffer solution are appropriate, appropriate amount of water.
The preparation method of the embodiment autoclave aerated concrete building block is comprised the following steps：
（1）Silane coupler kh550 is mixed with dehydrated alcohol, useless magnetic powder, graphene oxide, system stirring mixing is subsequently added into Ball-milling treatment 40min is carried out after uniform, polypropylene particles are subsequently added, is dried after stirring, subsequently melt mixed material Spinning, obtains magnetic polypropylene fibre standby；
（2）The water of 20 weight portions is taken, Dopamine Hydrochloride is added, to be stirred to it and add Tris-HCl buffer solution after being completely dissolved, Regulation system pH value is 8, is subsequently added magnetic polypropylene fibre, immersion treatment 32h, and process is filtered after terminating, gained fiber Jing Standby after drying and processing, gained filtrate is standby；
（3）By step（2）Resulting material puts into stirring pulping in cast blender together with other residual componentss, and mixing time is 5min；
（4）The slurry for stirring is injected into die for molding, the subsequently demoulding, cutting after precuring 3h under the conditions of 50 DEG C is obtained Base substrate enter that kettle is steam-cured, making condition is：Temperature：190 DEG C, pressure：1.2MPa, time 14h；
（5）Go out kettle after steam-cured end, cut into reference block.
Obtained test block Jing performance tests, test result is as follows：
Comprcssive strength：4.12MPa；Tensile splitting strength：0.33MPa；Volume-weighted average：647kg/m3；Heat conductivity：0.082(W/ m.k)；Acoustic absorptivity：0.28.
Building block transverse section get angry pore size distribution statistics：
d/μm The present embodiment building block
＜ 100 40%
100-300 51%
＞ 300 9%

Claims (2)

1. a kind of autoclave aerated concrete building block of doped magnetic polypropylene fibre, it is characterised in that the concrete segment by with The raw material of lower weight portion is made：Flyash 35-45, desulphurization building gypsum 5-8, quick lime 12-18, carbide slag 4-5, carbonization straw Powder 3-5, cement 10-15, polyethyleneimine 0.1-0.2, useless magnetic powder 1-2, polypropylene particles 3-5, graphene oxide 0.001- 0.002nd, silane coupler kh550 0.1-0.2, aluminium powder cream 0.3-0.5, Dopamine Hydrochloride 0.01-0.02, dehydrated alcohol 10- 15th, Tris-HCl buffer solution is appropriate, appropriate amount of water.
2. a kind of preparation method of the autoclave aerated concrete building block of doped magnetic polypropylene fibre as claimed in claim 1, Characterized in that, comprising the following steps：
（1）Silane coupler kh550 is mixed with dehydrated alcohol, useless magnetic powder, graphene oxide, system stirring mixing is subsequently added into Ball-milling treatment 40-50min is carried out after uniform, polypropylene particles are subsequently added, is dried after stirring, subsequently melt mixed material Melt spinning, obtain magnetic polypropylene fibre standby；
（2）The water of 20-25 weight portions is taken, Dopamine Hydrochloride is added, is stirred to it and is added Tris-HCl bufferings molten after being completely dissolved Liquid, regulation system pH value is 8-8.5, is subsequently added magnetic polypropylene fibre, immersion treatment 32-48h, and process is filtered after terminating, Gained fiber drying is standby after processing, and gained filtrate is standby；
（3）By step（2）Resulting material puts into stirring pulping in cast blender together with other residual componentss, and mixing time is 5-8min；
（4）The slurry for stirring is injected into die for molding, the subsequently demoulding, cutting after precuring 3-4h under the conditions of 50-60 DEG C, The base substrate for obtaining enters that kettle is steam-cured, and making condition is：Temperature：190-195 DEG C, pressure：1.2-1.6MPa, time 14-16h；
（5）Go out kettle after steam-cured end, Jing cleanings, packaging get product.
CN201611167505.2A 2016-12-16 2016-12-16 Autoclaved aerated concrete block doped with magnetic polypropylene fiber and preparation method of autoclaved aerated concrete block Pending CN106587777A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107572997A (en) * 2017-10-19 2018-01-12 杨忠华 A kind of permanent seal cooling blast furnace granulated slag building block
CN108821660A (en) * 2018-07-25 2018-11-16 佛山陵朝新材料有限公司 A kind of preparation method of air-entrained concrete building block
CN111620713A (en) * 2020-05-21 2020-09-04 贵州开磷磷石膏综合利用有限公司 Phosphogypsum-based light heat-preservation floor heating module and preparation method thereof
CN112279578A (en) * 2020-11-26 2021-01-29 杭州易佰新材料科技有限公司 Crack-resistant reinforced concrete for building and preparation method thereof
CN115368099A (en) * 2022-09-20 2022-11-22 中南安全环境技术研究院股份有限公司 Environment-friendly phosphogypsum-based concrete, assembled pavement slab, preparation method and application

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CN102206095A (en) * 2011-04-12 2011-10-05 俞华贵 Aerated concrete building block and preparation technology thereof
CN105818398A (en) * 2016-03-13 2016-08-03 北京化工大学 Chopped fiber dispersion and preparation method thereof

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CN105818398A (en) * 2016-03-13 2016-08-03 北京化工大学 Chopped fiber dispersion and preparation method thereof

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107572997A (en) * 2017-10-19 2018-01-12 杨忠华 A kind of permanent seal cooling blast furnace granulated slag building block
CN108821660A (en) * 2018-07-25 2018-11-16 佛山陵朝新材料有限公司 A kind of preparation method of air-entrained concrete building block
CN111620713A (en) * 2020-05-21 2020-09-04 贵州开磷磷石膏综合利用有限公司 Phosphogypsum-based light heat-preservation floor heating module and preparation method thereof
CN112279578A (en) * 2020-11-26 2021-01-29 杭州易佰新材料科技有限公司 Crack-resistant reinforced concrete for building and preparation method thereof
CN112279578B (en) * 2020-11-26 2022-04-22 上海隧港建筑材料有限公司 Crack-resistant reinforced concrete for building and preparation method thereof
CN115368099A (en) * 2022-09-20 2022-11-22 中南安全环境技术研究院股份有限公司 Environment-friendly phosphogypsum-based concrete, assembled pavement slab, preparation method and application
CN115368099B (en) * 2022-09-20 2023-09-12 中南安全环境技术研究院股份有限公司 Environment-friendly phosphogypsum-based concrete, assembled pavement slab, and preparation method and application thereof

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