CN108002845A - A kind of preparation method of light thermal-insulation fired brick - Google Patents

A kind of preparation method of light thermal-insulation fired brick Download PDF

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CN108002845A
CN108002845A CN201711033118.4A CN201711033118A CN108002845A CN 108002845 A CN108002845 A CN 108002845A CN 201711033118 A CN201711033118 A CN 201711033118A CN 108002845 A CN108002845 A CN 108002845A
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light thermal
building waste
insulation
preparation
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林龙
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
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    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
    • C04B38/063—Preparing or treating the raw materials individually or as batches
    • C04B38/0635—Compounding ingredients
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    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
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    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
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    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
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    • C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
    • C04B2235/9615—Linear firing shrinkage

Abstract

The invention discloses a kind of preparation method of light thermal-insulation fired brick, include the following steps：Building waste, Ludox, glass fibre, oxidized polyethylene wax, chlorinated paraffin, water are mixed, heated up, is stirred, cooling, regulation system pH value is 7.2 7.6, and grinding is uniform, and filtering, is dried to pretreatment building waste；Salpeter solution, maize cob meal mixing are added into pretreatment building waste, heating stirring, filtering, adds vermiculite power, sodium ascorbate, water and be uniformly mixed, be molded, sintering obtains light thermal-insulation fired brick.The present invention, as aggregate, in the requirement for meeting heat insulation effect at the same time, reduces brick body weight using building waste; with light thermal-insulation performance, and it is of low cost, in the colleague for the processing problem for solving building waste; cultivated land resource is protected, realizes the needs recycled of building waste.

Description

A kind of preparation method of light thermal-insulation fired brick
Technical field
The present invention relates to fired brick technical field, more particularly to a kind of preparation method of light thermal-insulation fired brick.
Background technology
Waste material that building waste is produced including waste concrete block, brickbat slag, metal, bamboo and wood material, decorations etc..According to related Data introduction, in the work progress of every ten thousand square metres of buildings, only building waste residue will produce 500-600 tons.If calculating by this, The building waste residue produced by construction and discharged often is only in China just 40,000,000 tons.
The primary raw material of existing common brick is silty or dauk, in addition to clay, also using shale, bastard coal Stone, flyash etc. manufacture non-clay sintering heat-reserving brick for raw material, its chemical composition is similar, but the cost price of mentioned component Height, causes the cost of non-clay sintering heat-reserving brick that finally obtains also high.
If preparing fired brick with soil instead of arable land using building waste, only country does not economize the land resource, and can have Effect reduces production cost, and current building waste prepares that fired brick is also big there are weight, and heat insulation effect can not meet the skill of demand Art problem, it would be highly desirable to solve.
The content of the invention
Based on technical problem existing for background technology, the present invention proposes a kind of preparation method of light thermal-insulation fired brick, Using building waste as aggregate, in the requirement for meeting heat insulation effect at the same time, brick body weight is reduced, there is light thermal-insulation Can, and it is of low cost, in the colleague for the processing problem for solving building waste, cultivated land resource is protected, realizes building rubbish The needs recycled of rubbish.
A kind of preparation method of light thermal-insulation fired brick proposed by the present invention, includes the following steps：
S1, by building waste, Ludox, glass fibre, oxidized polyethylene wax, chlorinated paraffin, water mix, heat up, stir, drop Temperature, regulation system pH value are 7.2-7.6, and grinding is uniform, and filtering, is dried to pretreatment building waste；
S2, into pretreatment building waste, addition salpeter solution, maize cob meal mix, heating stirring, filtering, addition vermiculite power, Sodium ascorbate, water are uniformly mixed, and shaping, sintering obtains light thermal-insulation fired brick.
Preferably, in S1,120-130 DEG C is warming up to, stirs 40-60min.
Preferably, in S1, by weight by 80-110 parts of building wastes, 20-40 parts of Ludox, 50-70 parts of glass fibres, 1-3 parts of oxidized polyethylene wax, 1-3 parts of chlorinated paraffins, 200-300 parts of water mixing, are warming up to 120-130 DEG C, stir 40-60min, Cooling, regulation system pH value is 7.2-7.6, and grinding is uniform, and filtering, is dried to pretreatment building waste.
Preferably, in S2,70-85 DEG C is warming up to, stirs 20-40min.
Preferably, in S2, sintering temperature is 700-820 DEG C, sintering time 15-22h.
Preferably, in S2, it is 5-15wt% to add 200-300 parts of concentration into 100 parts of pretreatment building wastes by weight Salpeter solution, 20-40 parts of maize cob meal mixing, are warming up to 70-85 DEG C of stirring 20-40min, filter, 2-10 parts of vermiculite powers of addition, 1-3 parts of sodium ascorbates, 30-60 parts of water are uniformly mixed, and are molded, sintering, and sintering temperature is 700-820 DEG C, sintering time 15- 22h, obtains light thermal-insulation fired brick.
The present invention, as aggregate, in the requirement for meeting heat insulation effect at the same time, is reduced brick body weight, had using building waste There is light thermal-insulation performance, and it is of low cost, in the colleague for the processing problem for solving building waste, cultivated land resource is protected, Realize the needs recycled of building waste.
Using building waste, Ludox, glass fibre compounding, chlorinated paraffin can effectively promote to divide between said components the present invention Dissipate, and oxidized polyethylene wax is mainly long-chain saturated hydrocarbons composition, it is extremely strong by emulsifiability after high-temperature process, pass through regulation system To into alkalescent, mutual bond strength is high, makes heat insulating effect of the present invention fabulous, and excellent in mechanical performance, into one Step compounds in salpeter solution with maize cob meal, not only intensity higher, but also on the premise of guarantee is excellent in cushion effect, can exist The structure with certain porosity is formed in brick structure, on the basis of brick body weight is reduced, both ensure that brick had necessarily Mechanical strength, also make to form air heat-insulation layer between brick, heat insulating effect is fabulous.
Embodiment
In the following, technical scheme is described in detail by specific embodiment.
Embodiment 1
A kind of preparation method of light thermal-insulation fired brick, includes the following steps：
S1, by building waste, Ludox, glass fibre, oxidized polyethylene wax, chlorinated paraffin, water mix, heat up, stir, drop Temperature, regulation system pH value are 7.2-7.6, and grinding is uniform, and filtering, is dried to pretreatment building waste；
S2, into pretreatment building waste, addition salpeter solution, maize cob meal mix, heating stirring, filtering, addition vermiculite power, Sodium ascorbate, water are uniformly mixed, and shaping, sintering obtains light thermal-insulation fired brick.
Embodiment 2
A kind of preparation method of light thermal-insulation fired brick, includes the following steps：
S1, by weight by 80 parts of building wastes, 40 parts of Ludox, 50 parts of glass fibres, 3 parts of oxidized polyethylene wax, 1 part of chlorination Paraffin, 300 parts of water mixing, are warming up to 120 DEG C, stir 60min, cooling, regulation system pH value is 7.2-7.6, and grinding is uniform, mistake Filter, is dried to pretreatment building waste；
S2, into 100 parts of pretreatment building wastes, 200 parts of concentration of addition are 15wt% salpeter solutions, 20 parts of corncobs by weight Powder mixes, and is warming up to 85 DEG C of stirring 20min, and filtering, adds 10 parts of vermiculite powers, 1 part of sodium ascorbate, 60 parts of water and be uniformly mixed, Shaping, sintering, sintering temperature are 700 DEG C, and sintering time 22h, obtains light thermal-insulation fired brick.
Embodiment 3
A kind of preparation method of light thermal-insulation fired brick, includes the following steps：
S1, by weight by 110 parts of building wastes, 20 parts of Ludox, 70 parts of glass fibres, 1 part of oxidized polyethylene wax, 3 parts of chlorine Fossil waxes, 200 parts of water mixing, are warming up to 130 DEG C, stir 40min, and cooling, regulation system pH value is 7.2-7.6, and grinding is uniform, Filtering, is dried to pretreatment building waste；
S2, into 100 parts of pretreatment building wastes, 300 parts of concentration of addition are 5wt% salpeter solutions, 40 parts of corncobs by weight Powder mixes, and is warming up to 70 DEG C of stirring 40min, and filtering, adds 2 parts of vermiculite powers, 3 parts of sodium ascorbates, 30 parts of water and be uniformly mixed, into Type, sintering, sintering temperature are 820 DEG C, and sintering time 15h, obtains light thermal-insulation fired brick.
Embodiment 4
A kind of preparation method of light thermal-insulation fired brick, includes the following steps：
S1, by weight by 90 parts of building wastes, 35 parts of Ludox, 55 parts of glass fibres, 2.5 parts of oxidized polyethylene wax, 1.5 parts Chlorinated paraffin, 280 parts of water mixing, are warming up to 122 DEG C, stir 55min, cooling, regulation system pH value is 7.2-7.6, and grinding is equal Even, filtering, is dried to pretreatment building waste；
S2, into 100 parts of pretreatment building wastes, 220 parts of concentration of addition are 12wt% salpeter solutions, 25 parts of corncobs by weight Powder mixes, and is warming up to 80 DEG C of stirring 25min, and filtering, adds 8 parts of vermiculite powers, 1.5 parts of sodium ascorbates, 50 parts of water and be uniformly mixed, Shaping, sintering, sintering temperature are 740 DEG C, and sintering time 20h, obtains light thermal-insulation fired brick.
Embodiment 5
A kind of preparation method of light thermal-insulation fired brick, includes the following steps：
S1, by weight by 100 parts of building wastes, 25 parts of Ludox, 65 parts of glass fibres, 1.5 parts of oxidized polyethylene wax, 2.5 Part chlorinated paraffin, 220 parts of water mixing, are warming up to 128 DEG C, stir 45min, cooling, regulation system pH value is 7.2-7.6, grinding Uniformly, filter, be dried to pretreatment building waste；
S2, into 100 parts of pretreatment building wastes, 280 parts of concentration of addition are 8wt% salpeter solutions, 35 parts of corncobs by weight Powder mixes, and is warming up to 75 DEG C of stirring 35min, and filtering, adds 4 parts of vermiculite powers, 2.5 parts of sodium ascorbates, 40 parts of water and be uniformly mixed, Shaping, sintering, sintering temperature are 800 DEG C, and sintering time 16h, obtains light thermal-insulation fired brick.
Embodiment 6
A kind of preparation method of light thermal-insulation fired brick, includes the following steps：
S1, by weight by 95 parts of building wastes, 30 parts of Ludox, 60 parts of glass fibres, 2 parts of oxidized polyethylene wax, 2 parts of chlorinations Paraffin, 250 parts of water mixing, are warming up to 125 DEG C, stir 50min, cooling, regulation system pH value is 7.2-7.6, and grinding is uniform, mistake Filter, is dried to pretreatment building waste；
S2, into 100 parts of pretreatment building wastes, 250 parts of concentration of addition are 10wt% salpeter solutions, 30 parts of corncobs by weight Powder mixes, and is warming up to 78 DEG C of stirring 30min, and filtering, adds 4-8 parts of vermiculite powers, 2 parts of sodium ascorbates, 45 parts of water and be uniformly mixed, Shaping, sintering, sintering temperature are 770 DEG C, and sintering time 18h, obtains light thermal-insulation fired brick.
The compression strength of light thermal-insulation fired brick is 28-32MPa obtained by 1-6 of the embodiment of the present invention, can bear load and be up to 420-480kg/m, thermal conductivity factor are not more than 0.15w/m.k, and insulating brick volume density is 0.45-0.49g/cm2, in 800 DEG C × 8h Offline change is less than 0.41%, is conducive to improve the integral strength of building.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto, Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (6)

1. a kind of preparation method of light thermal-insulation fired brick, it is characterised in that include the following steps：
S1, by building waste, Ludox, glass fibre, oxidized polyethylene wax, chlorinated paraffin, water mix, heat up, stir, drop Temperature, regulation system pH value are 7.2-7.6, and grinding is uniform, and filtering, is dried to pretreatment building waste；
S2, into pretreatment building waste, addition salpeter solution, maize cob meal mix, heating stirring, filtering, addition vermiculite power, Sodium ascorbate, water are uniformly mixed, and shaping, sintering obtains light thermal-insulation fired brick.
2. the preparation method of light thermal-insulation fired brick according to claim 1, it is characterised in that in S1, be warming up to 120-130 DEG C, stir 40-60min.
3. the preparation method of light thermal-insulation fired brick according to claim 1 or claim 2, it is characterised in that in S1, by weight will 80-110 parts of building wastes, 20-40 parts of Ludox, 50-70 parts of glass fibres, 1-3 parts of oxidized polyethylene wax, 1-3 parts of chlorination stones Wax, 200-300 parts of water mixing, are warming up to 120-130 DEG C, stir 40-60min, cooling, regulation system pH value is 7.2-7.6, is ground Mill is uniform, and filtering, is dried to pretreatment building waste.
4. according to the preparation method of any one of the claim 1-3 light thermal-insulation fired bricks, it is characterised in that in S2, heating To 70-85 DEG C, 20-40min is stirred.
5. according to the preparation method of any one of the claim 1-4 light thermal-insulation fired bricks, it is characterised in that in S2, sintering Temperature is 700-820 DEG C, sintering time 15-22h.
6. according to the preparation method of any one of the claim 1-5 light thermal-insulation fired bricks, it is characterised in that in S2, by weight Measure part and add 200-300 parts of concentration into 100 parts of pretreatment building wastes as 5-15wt% salpeter solutions, 20-40 parts of maize cob meals Mixing, be warming up to 70-85 DEG C stirring 20-40min, filtering, add 2-10 parts of vermiculite powers, 1-3 parts of sodium ascorbates, 30-60 parts Water is uniformly mixed, and is molded, and sintering, sintering temperature is 700-820 DEG C, and sintering time 15-22h, obtains light thermal-insulation fired brick.
CN201711033118.4A 2017-10-30 2017-10-30 A kind of preparation method of light thermal-insulation fired brick Pending CN108002845A (en)

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Publication number Priority date Publication date Assignee Title
CN114656242A (en) * 2022-03-15 2022-06-24 汉江城建集团有限公司 Preparation method of construction waste recycled insulating brick

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CN1830869A (en) * 2006-03-22 2006-09-13 西安墙体材料研究设计院 Sintered heat insulating hollow building block
CN101172840A (en) * 2007-10-13 2008-05-07 宜兴摩根热陶瓷有限公司 Lightweight mullite heat insulating brick
CN102951917A (en) * 2012-11-23 2013-03-06 山东鲁阳股份有限公司 Preparation method of light mullite brick

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114656242A (en) * 2022-03-15 2022-06-24 汉江城建集团有限公司 Preparation method of construction waste recycled insulating brick

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