CN106810186A - A kind of impervious wear-resisting type reinforced concrete sewer pipe of the resistance to compression of hydrated glass and preparation method thereof - Google Patents

A kind of impervious wear-resisting type reinforced concrete sewer pipe of the resistance to compression of hydrated glass and preparation method thereof Download PDF

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Publication number
CN106810186A
CN106810186A CN201611157933.7A CN201611157933A CN106810186A CN 106810186 A CN106810186 A CN 106810186A CN 201611157933 A CN201611157933 A CN 201611157933A CN 106810186 A CN106810186 A CN 106810186A
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China
Prior art keywords
reinforced concrete
resistance
water
compression
adds
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Pending
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CN201611157933.7A
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Chinese (zh)
Inventor
张振华
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Fuyang Huashun Cement Products Co Ltd
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Fuyang Huashun Cement Products Co Ltd
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Priority to CN201611157933.7A priority Critical patent/CN106810186A/en
Publication of CN106810186A publication Critical patent/CN106810186A/en
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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
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/24Compositions 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 alkyl, ammonium or metal silicates; containing silica sols
    • C04B28/26Silicates of the alkali metals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B21/00Methods or machines specially adapted for the production of tubular articles
    • B28B21/56Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
    • B28B21/60Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts prestressed reinforcements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B21/00Methods or machines specially adapted for the production of tubular articles
    • B28B21/92Methods or apparatus for treating or reshaping
    • 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
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/2038Resistance against physical degradation
    • 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
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/27Water resistance, i.e. waterproof or water-repellent materials
    • 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
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/56Compositions suited for fabrication of pipes, e.g. by centrifugal casting, or for coating concrete pipes

Abstract

The invention discloses impervious wear-resisting type reinforced concrete sewer pipe of a kind of resistance to compression of hydrated glass and preparation method thereof, it is characterized in that, with flyash, slag powders, metakaolin, gypsum, sodium sulphate, naphthalene series high-efficiency water-reducing agent, sand, rubble, bisphenol A type epoxy resin E 44, benzoyl peroxide, acrylic acid, N, N dimethylethanolamines, organo montmorillonite, cement, steel fibre, calcined diatomite, reinforcing bar, urea, methyl silicon sodium alcoholate, potassium bichromate, waterglass etc. are raw material.The present invention is prepared for aqueous epoxy resins by the method for graft copolymerization, obtains the network structure of polymer and concrete base material IPN;With organo montmorillonite as filler, it is added in aqueous epoxy resins matrix using high polymeric solution graft process, prepares aqueous epoxy resins/Nano composite material of montmorillonite;Uniform magnetic field is applied to steel fiber reinforced concrete mixture, the steel fiber reinforced concrete of unidirectional distribution is prepared, fiber utilization rate is high, and enhancing effect is good.

Description

A kind of impervious wear-resisting type reinforced concrete sewer pipe of the resistance to compression of hydrated glass and its preparation Method
Technical field
The present invention relates to a kind of preparation method of reinforced concrete sewer pipe, and in particular to a kind of resistance to compression of hydrated glass resists Ooze wear-resisting type reinforced concrete sewer pipe and preparation method thereof.
Background technology
With the development of urban construction, start to build sewage treatment plant, substantial amounts of industrial wastewater and sanitary sewage need logical Cross drainpipe and enter sewage treatment plant, and black water usually containing acid or other corrosive substances and concentration difference, this Require that drainpipe has stronger decay resistance.
Liu Yuanxiang exists《The research and the application in drainpipe of alkali-activated slag flyash concrete performance》In one text, with Flyash, slag, alkali-activator, FKJ special additives, sandstone aggregate etc. are raw material, are prepared for alkali ore slag fly ash coagulation Soil;Stone is first put into during feeding, powder is then put into, then puts into sand, be eventually adding liquid exciting agent and water, use overhang roll legal system Plumber's skill produces acidproof, alkali corrosion resistance concrete drain tile;Concrete drain tile uses steam curing, steam curing system point For it is quiet stop, heat up, constant temperature, cooling four-stage.But it is not enough to there is decay resistance in gained drainpipe.
The present invention with the addition of metakaolin, have good filing effect and volcano ash effect in concrete;The present invention With epoxy resin, acrylic acid as raw material, salt forming agent N, N- dimethylethanolamine is added, water is prepared for by the method for graft copolymerization Property epoxy resin, is applied in modified cement-concrete, obtains the network structure of polymer and concrete base material IPN;This hair It is bright to be added in aqueous epoxy resins matrix using high polymeric solution graft process with organo montmorillonite as filler, prepare Aqueous epoxy resins/Nano composite material of montmorillonite;The characteristics of calcined diatomite has specific surface area high, finer grain size, uses Carry out fill concrete cement matrix internal void, so as to improve the packing of concrete substrate, mechanical property, impervious freeze proof Property;Uniform magnetic field is applied to steel fiber reinforced concrete mixture, the steel fiber reinforced concrete of unidirectional distribution, fiber utilization rate is prepared Height, enhancing effect is good;Methyl silicon sodium alcoholate can be combined with the silicon oxygen bond of concrete surface layer in the present invention;Waterglass can penetrate into The top layer of concrete, blocks hole, reduces moisture evaporation;Potassium bichromate and urea can improve waterglass in concrete surface layer Permeability;Products obtained therefrom can significantly improve compression strength, wearability and the impermeability of concrete;
Obtain a kind of impervious wear-resisting type reinforced concrete sewer pipe of resistance to compression of hydrated glass.
The content of the invention
The present invention solves the technical problem of a kind of impervious wear-resisting type armored concrete of the resistance to compression of hydrated glass of offer Drainpipe and preparation method thereof, the reinforced concrete sewer pipe mechanical property that is prepared according to the technique is good, intensity is high, resistance to compression, anti- Ooze, it is wear-resisting, corrosion-resistant.
The technical problems to be solved by the invention are realized using following technical scheme:
Flyash 13-17, slag powders 9-13, metakaolin 4-6, gypsum 1-3, sodium sulphate 5-8, naphthalene series high-efficiency water-reducing agent 1-2, sand 13-18, rubble 4-7, bisphenol A type epoxy resin E-44 2-4, benzoyl peroxide 2-3, acrylic acid 3-5, N, N- dimethyl second Hydramine 1-2, organo montmorillonite 3-6, cement 8-12, steel fibre 5-9, calcined diatomite 4-6, reinforcing bar 8-11, urea 1-2, methyl Sodium silanolate 1-3, potassium bichromate 1-2, waterglass 2-4, propylene glycol monomethyl ether, appropriate amount of water.
A kind of preparation method of the impervious wear-resisting type reinforced concrete sewer pipe of the resistance to compression of hydrated glass, it is characterised in that press Following steps are carried out:
A. flyash is mixed after mechanical grinding with slag powders, metakaolin, stir to obtain Binder Materials;
B. by gypsum, sodium sulphate mixing and ball milling it is uniform exciting agent, add resulting material in a with naphthalene series high-efficiency water-reducing agent, then with 2:4-6 adds sand and water, stirs to obtain mortar, adds the rubble of particle diameter 5-25mm, stirs 30-50min;
C. by bisphenol A type epoxy resin E-44 with 1:3-5 is dissolved in propylene glycol monomethyl ether, adds benzoyl peroxide, acrylic acid, It is warming up to 105-115 DEG C of reaction 2-3h, stirring lower 1:4-6 adds N, N- dimethylethanolamines and water, and tune pH is 7-8, and addition has Machine montmorillonite, 80-90 DEG C is reacted 1-2h, stand-by;
D. resulting material in a, b, c is mixed, adds cement, steel fibre, calcined diatomite, stirred, mixture is applied Uniform magnetic field;
E. by urea 1:10-15 is soluble in water, adds methyl silicon sodium alcoholate to be mixed and stirred for uniformly, obtaining A liquid;By potassium bichromate 1: 15-25 is soluble in water, obtains B liquid;A liquid is poured into waterglass while stirring, is well mixed, then B liquid is added thereto, stirring is equal It is even;
F. reinforcing bar treatment is obtained into framework of steel reinforcement shaping, resulting material input in d, e wherein, is started into overhang-roll tubing machine, overhang roll Shaping, steam curing, the demoulding, obtain a kind of impervious wear-resisting type reinforced concrete sewer pipe of resistance to compression of hydrated glass.
Reaction mechanism of the invention is as follows:
(1)Metakaolin is a kind of high-activity mineral blending material, and there is good filing effect and volcanic ash to imitate in concrete Should, microstructure, intensity and the durability of concrete can be improved.
(2)With epoxy resin, acrylic acid as raw material, salt forming agent N, N- dimethylethanolamine is added, by graft copolymerization Method is prepared for aqueous epoxy resins, is applied in modified cement-concrete, obtains polymer with concrete base material IPN Network structure, composite has the characteristics of tensile strength is high, water absorption rate is low, and compressive strength loss is small.
(3)With organo montmorillonite as filler, aqueous epoxy resins matrix is added to using high polymeric solution graft process In, aqueous epoxy resins/Nano composite material of montmorillonite is prepared, with high tenacity, impact resistance, decay resistance be strong, power The characteristics of performance is good.
(4)The characteristics of calcined diatomite has specific surface area high, finer grain size, in fill concrete cement matrix Portion's hole, so as to improve packing, mechanical property, the impervious frost resistance of concrete substrate.
(5)Apply uniform magnetic field to steel fiber reinforced concrete mixture, steel fibre is subject to magnetic fields so that most of steel is fine Dimension direction is consistent with magnetic direction or close, forms unidirectional distribution, prepares the steel fiber reinforced concrete of unidirectional distribution, fiber utilization Rate is high, and enhancing effect is good.
(6)Methyl silicon sodium alcoholate can be combined with the silicon oxygen bond of concrete surface layer in the present invention;Waterglass can penetrate into mixed The top layer of soil is coagulated, hole is blocked, moisture evaporation is reduced;Potassium bichromate and urea can improve waterglass oozing in concrete surface layer Permeability;Products obtained therefrom can significantly improve compression strength, wearability and the impermeability of concrete.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, tie below Specific embodiment is closed, the present invention is expanded on further.
Embodiment
A kind of impervious wear-resisting type reinforced concrete sewer pipe of the resistance to compression of hydrated glass, by the raw material system of following weight parts (g) :
Flyash 17, slag powders 13, metakaolin 6, gypsum 3, sodium sulphate 8, naphthalene series high-efficiency water-reducing agent 2, sand 18, rubble 7, bis-phenol A types epoxy resin E-44 4, benzoyl peroxide 3, acrylic acid 5, N, N- dimethylethanolamines 2, organo montmorillonite 6, cement 12, Steel fibre 9, calcined diatomite 6, reinforcing bar 11, urea 2, methyl silicon sodium alcoholate 3, potassium bichromate 2, waterglass 4, propylene glycol monomethyl ether, water In right amount.
A kind of preparation method of the impervious wear-resisting type reinforced concrete sewer pipe of the resistance to compression of hydrated glass, it is characterised in that press Following steps are carried out:
A. flyash is mixed after mechanical grinding with slag powders, metakaolin, stir to obtain Binder Materials;
B. by gypsum, sodium sulphate mixing and ball milling it is uniform exciting agent, add resulting material in a with naphthalene series high-efficiency water-reducing agent, then with 2:6 add sand and water, stir to obtain mortar, add the rubble of particle diameter 10-20mm, stir 30-40min;
C. by bisphenol A type epoxy resin E-44 with 1:5 are dissolved in propylene glycol monomethyl ether, add benzoyl peroxide, acrylic acid, rise Temperature stirs lower 1 to 105-115 DEG C of reaction 3h:6 add N, N- dimethylethanolamines and water, and tune pH is 7-8, adds organic illiteracy to take off Soil, 80-90 DEG C is reacted 1h, stand-by;
D. resulting material in a, b, c is mixed, adds cement, steel fibre, calcined diatomite, stirred, mixture is applied Uniform magnetic field;
E. by urea 1:15 is soluble in water, adds methyl silicon sodium alcoholate to be mixed and stirred for uniformly, obtaining A liquid;By potassium bichromate 1:25 is molten Yu Shuizhong, obtains B liquid;A liquid is poured into waterglass while stirring, is well mixed, then B liquid is added thereto, stirred;
F. reinforcing bar treatment is obtained into framework of steel reinforcement shaping, resulting material input in d, e wherein, is started into overhang-roll tubing machine, overhang roll Shaping, steam curing, the demoulding, obtain a kind of impervious wear-resisting type reinforced concrete sewer pipe of resistance to compression of hydrated glass.
A kind of impervious wear-resisting type reinforced concrete sewer pipe performance detection of resistance to compression of hydrated glass prepared by above-described embodiment Result is as follows:
Acidproof and alkali corrosion resistance coefficient >=0.87, drainpipe cracking load >=61kN/m, failing load >=89kN/m reaches The I grade of pipe requirement of 1200mm reinforced concrete sewer pipes.

Claims (2)

1. the impervious wear-resisting type reinforced concrete sewer pipe of a kind of resistance to compression of hydrated glass, it is characterised in that by following weight parts Raw material is obtained:
Flyash 13-17, slag powders 9-13, metakaolin 4-6, gypsum 1-3, sodium sulphate 5-8, naphthalene series high-efficiency water-reducing agent 1-2, sand 13-18, rubble 4-7, bisphenol A type epoxy resin E-44 2-4, benzoyl peroxide 2-3, acrylic acid 3-5, N, N- dimethyl second Hydramine 1-2, organo montmorillonite 3-6, cement 8-12, steel fibre 5-9, calcined diatomite 4-6, reinforcing bar 8-11, urea 1-2, methyl Sodium silanolate 1-3, potassium bichromate 1-2, waterglass 2-4, propylene glycol monomethyl ether, appropriate amount of water.
2. the preparation side of the impervious wear-resisting type reinforced concrete sewer pipe of the resistance to compression of a kind of hydrated glass according to claim 1 Method, it is characterised in that carry out according to the following steps:
Flyash is mixed after mechanical grinding with slag powders, metakaolin, stir to obtain Binder Materials;
B. by gypsum, sodium sulphate mixing and ball milling it is uniform exciting agent, add resulting material in a with naphthalene series high-efficiency water-reducing agent, then with 2:4-6 adds sand and water, stirs to obtain mortar, adds the rubble of particle diameter 5-25mm, stirs 30-50min;
C. by bisphenol A type epoxy resin E-44 with 1:3-5 is dissolved in propylene glycol monomethyl ether, adds benzoyl peroxide, acrylic acid, It is warming up to 105-115 DEG C of reaction 2-3h, stirring lower 1:4-6 adds N, N- dimethylethanolamines and water, and tune pH is 7-8, and addition has Machine montmorillonite, 80-90 DEG C is reacted 1-2h, stand-by;
D. resulting material in a, b, c is mixed, adds cement, steel fibre, calcined diatomite, stirred, mixture is applied Uniform magnetic field;
E. by urea 1:10-15 is soluble in water, adds methyl silicon sodium alcoholate to be mixed and stirred for uniformly, obtaining A liquid;By potassium bichromate 1: 15-25 is soluble in water, obtains B liquid;A liquid is poured into waterglass while stirring, is well mixed, then B liquid is added thereto, stirring is equal It is even;
F. reinforcing bar treatment is obtained into framework of steel reinforcement shaping, resulting material input in d, e wherein, is started into overhang-roll tubing machine, overhang roll Shaping, steam curing, the demoulding, obtain a kind of impervious wear-resisting type reinforced concrete sewer pipe of resistance to compression of hydrated glass.
CN201611157933.7A 2016-12-15 2016-12-15 A kind of impervious wear-resisting type reinforced concrete sewer pipe of the resistance to compression of hydrated glass and preparation method thereof Pending CN106810186A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115215608A (en) * 2022-06-24 2022-10-21 山东水总有限公司 Roller compacted concrete for arch dam construction and production process thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102320775A (en) * 2010-09-07 2012-01-18 深圳市陆基建材技术有限公司 Seawater corrosion resisting mineral additive for concrete, and preparation method thereof
CN102674886A (en) * 2012-05-31 2012-09-19 广西大学 Process for preparing water glass based concrete curing and reinforcing agent
CN103224356A (en) * 2013-02-07 2013-07-31 黄贺明 Green environmentally-friendly powder reinforced concrete water delivery pipe
CN105948803A (en) * 2016-06-02 2016-09-21 湖州汇能新材料科技有限公司 Preparing method for aerated concrete products

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102320775A (en) * 2010-09-07 2012-01-18 深圳市陆基建材技术有限公司 Seawater corrosion resisting mineral additive for concrete, and preparation method thereof
CN102674886A (en) * 2012-05-31 2012-09-19 广西大学 Process for preparing water glass based concrete curing and reinforcing agent
CN103224356A (en) * 2013-02-07 2013-07-31 黄贺明 Green environmentally-friendly powder reinforced concrete water delivery pipe
CN105948803A (en) * 2016-06-02 2016-09-21 湖州汇能新材料科技有限公司 Preparing method for aerated concrete products

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
穆惠民: "《中国建材技术装备制造安装维护与修理》", 30 September 2002 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115215608A (en) * 2022-06-24 2022-10-21 山东水总有限公司 Roller compacted concrete for arch dam construction and production process thereof

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