CN106242401A - A kind of high strenght flyash calcium sulfate crystal whiskers air-entrained concrete building block and processing method thereof - Google Patents

A kind of high strenght flyash calcium sulfate crystal whiskers air-entrained concrete building block and processing method thereof Download PDF

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Publication number
CN106242401A
CN106242401A CN201610630594.3A CN201610630594A CN106242401A CN 106242401 A CN106242401 A CN 106242401A CN 201610630594 A CN201610630594 A CN 201610630594A CN 106242401 A CN106242401 A CN 106242401A
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building block
air
calcium sulfate
sulfate crystal
crystal whiskers
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CN201610630594.3A
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Inventor
王长富
毛东超
王玉童
刘伟
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ANHUI FUYANG FULONG BUILDING MATERIALS Co Ltd
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ANHUI FUYANG FULONG BUILDING MATERIALS Co Ltd
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Priority to CN201610630594.3A priority Critical patent/CN106242401A/en
Publication of CN106242401A publication Critical patent/CN106242401A/en
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    • 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00Producing shaped prefabricated articles from the material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/24Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
    • B28B11/245Curing concrete articles
    • 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
    • C04B14/00Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/38Fibrous materials; Whiskers
    • C04B14/383Whiskers
    • 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
    • C04B38/00Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/02Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
    • 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
    • C04B38/00Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/10Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
    • 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
    • C04B2111/34Non-shrinking or non-cracking materials
    • C04B2111/343Crack resistant 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
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/20Mortars, concrete or artificial stone characterised by specific physical values for the density
    • 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
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/30Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
    • C04B2201/32Mortars, 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
    • 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
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

Abstract

The invention discloses a kind of high strenght flyash calcium sulfate crystal whiskers air-entrained concrete building block and processing method thereof, the weight portion of its constitutive material is: riverway sludge 30 40, flyash 20 30, calcium sulfate crystal whiskers 35, cement 46, quick lime 35, triethanolamine 0.02 0.04, agricultural crop straw 20 25 waterglass 1 1.5, hydroxypropyl methyl cellulose 0.2 0.5, additive 12, aluminium powder 12, dodecyl salicylic acid 0.2 0.4, polyoxyethylene aliphatic alcohol ether 0.01 0.02, triterpenoid saponin 0.2 0.3, calcium stearate 0.01 0.03, BTA 0.02 0.04.The air-entrained concrete building block drying shrinkage value of the present invention is little, and cracking resistance is good, and the good properties of water-resistance all meets Standard.The relatively existing product intensity that compares is significantly improved.

Description

A kind of high strenght flyash calcium sulfate crystal whiskers air-entrained concrete building block and processing method thereof
Technical field
The present invention relates to building material field, particularly belong to a kind of high strenght flyash calcium sulfate crystal whiskers air entrained concrete and build Block and processing method thereof.
Background technology
Air-entrained concrete building block is that one is light porous, insulation, fire protecting performance good, can follow closely, can saw, can dig and have There are the New Building Materials of certain shock resistance.The production principle of air-entrained concrete building block is to utilize siliceous material, calcareous material, Be additionally incorporated appropriate regulation material and a small amount of material admixture foaming agent (aluminium powder) of getting angry, by dispensing, stir, pour into a mould, precuring, The light porous silicate product that the technical processs such as cutting, steam pressure, maintenance are made.Because it contains the most uniform and thin after getting angry Little pore, therefore named air entrained concrete.Pore in air-entrained concrete building block accounts for the 60%-75% of its volume.Therefore, pore Shape, size, quantity and distribution almost affect all properties of air-entrained concrete building block, such as intensity, unit weight, absorb water, protect Warm, heat insulation and sound insulation etc..
At present, air-entrained concrete building block has an insoluble technical problem in producing, and aerated blocks mould rate of collapsing is higher, leads Causing aerated blocks qualification rate about 80%, the insufficient strength of the finished product processed, cause collapsing mould and inadequate main of product intensity Reason be exactly existing foaming agent get angry weak effect, get angry uneven, pore in irregular shape, size is uneven, distribution not Uniformly.Therefore studying how by scientific matching and the adjustment of technique of adjuvant of getting angry, final production goes out to get angry uniformly, aperture shape The air-entrained concrete building block that shape, size, quantity and distribution are the most more satisfactory, is that current air entrained concrete researchers are anxious to be studied Problem.
Summary of the invention
It is an object of the invention to provide a kind of high strenght flyash calcium sulfate crystal whiskers air-entrained concrete building block and processing thereof Method.
The present invention adopts the following technical scheme that to achieve these goals
A kind of high strenght flyash calcium sulfate crystal whiskers air-entrained concrete building block, it is characterised in that the weight portion of its constitutive material For: riverway sludge 30-40, flyash 20-30, calcium sulfate crystal whiskers 3-5, cement 4-6, quick lime 3-5, triethanolamine 0.02- 0.04, agricultural crop straw 20-25, waterglass 1-1.5, hydroxypropyl methyl cellulose 0.2-0.5, additive 1-2, aluminium powder 1-2, ten Dialkylsalicylic acids 0.2-0.4, polyoxyethylene aliphatic alcohol ether 0.01-0.02, triterpenoid saponin 0.2-0.3, calcium stearate 0.01- 0.03, BTA 0.02-0.04,
Described additive has the component raw material of following weight portion to be mixed to prepare: air-entrained concrete building block waste material 10-20, three Ethanolamine 0.2-0.4, hexamethylenamine 0.1-0.3, rosin acid sodium 0.02-0.03, sodium lignin sulfonate 0.01-0.015, acid-sludge 1- 2, in right amount, high-speed stirred is obtained by mixing for quick lime 2-3, Borax 0.5-0.8, DBSA 0.2-0.4, water.
The processing method of described high strenght flyash calcium sulfate crystal whiskers air-entrained concrete building block, it is characterised in that include with Lower step:
(1) each component is weighed by proportioning;
(2) riverway sludge weighed, flyash, calcium sulfate crystal whiskers, cement, quick lime are carried out pulverizing extremely in ball mill 180~220 mesh, obtain mixed material;
(3) agricultural crop straw is cut to 1-2cm, joins hot-water soak 10-12 hour of 60-70 DEG C, with aqueous slkali, After calcium salt soln processes, carrying out defibrination, refining concentration is about 15%~20%, obtains straw slurry, standby;
(4) by aluminium powder, dodecyl salicylic acid, polyoxyethylene aliphatic alcohol ether, triterpenoid saponin, calcium stearate, benzo three nitrogen Azoles adds appropriate water and stirs, and obtains pulpous state and is combined foaming agent, standby;
(5) mixed material that step (2) obtains is joined in blender, under stirring, add additional while add waterside Agent, after being then sufficiently stirred for 1-2 minute, adds the straw slurry that step (3) obtains, and after being sufficiently stirred for 2-5 minute, adds step Suddenly the compound foaming agent that (4) prepare is sufficiently stirred for, and obtains slurry;
(6) whipping process arranges Insulation, it is ensured that molding temperature during slip casting is at 40-45 DEG C;Slurry is watered Note to aero-concrete mould, be warming up to 55-70 DEG C and get angry 25-40 minute, pre-at a temperature of 50~70 DEG C after having got angry Supporting 2~4 hours, after blank strength reaches 0.8~1.1MPa, specification as required is cut;
(7) carrying out steam-cured in the complete base substrate of cutting being delivered to still kettle, the method for maintenance is: heat up 2~3 hours to greatly Air pressure reaches 0.9~1.2MPa, constant temperature and pressure 6-8 hour, then decrease temperature and pressure 2~3 hours are to room temperature, get product.
The present invention has the following advantages and beneficial effect:
1, the present invention uses utilization industry and agricultural residue as raw material, decreases the waste material pollution to surrounding enviroment, real Now turn waste into wealth so that resource is maximally utilized.In adjuvant, add homemade compound additive to improve concrete and stir Water-resistance, frost resistance and durability after mobility when mixing, hardening, with the addition of the pulpous state base material of additive adds again compound After foaming agent is sufficiently stirred for, it is poured in mould and gets angry, the aluminium powder in compound foaming agent and the acidic activator vinegar in additive Under the exciting of slag and alkali-activator Borax, gas forming amount increases reaction fully, sodium lignin sulfonate, polyoxyethylene aliphatic alcohol ether, Under the mutually coordinated effect of triterpenoid saponin, the regular shape of the pore of finished product building block, size uniformly and are evenly distributed.Finished product porosity Reaching 65%-75%, the calcium sulfate crystal whiskers added in formula plays the effect of strengthening and toughening, and prepared air-entrained concrete building block is dried Shrinkage value is little, and cracking resistance is good, and particularly intensity is high, and properties all meets Standard.
2, the building block unit weight that prepared by the present invention is at about 615kg/m3, and intensity is high, and drying shrinkage is little, and technique is simple.
3, the air-entrained concrete building block thermal and insulating performance that prepared by the present invention is good, and energy-saving effect is obvious.
Detailed description of the invention
Embodiment 1: a kind of high strenght flyash calcium sulfate crystal whiskers air-entrained concrete building block, the weight (kg) of its constitutive material For: riverway sludge 36, flyash 25, calcium sulfate crystal whiskers 4, cement 5, quick lime 4, triethanolamine 0.03, agricultural crop straw 23, water Glass 1.2, hydroxypropyl methyl cellulose 0.4, additive 2, aluminium powder 1, dodecyl salicylic acid 0.3, polyoxyethylene aliphatic alcohol ether 0.02, triterpenoid saponin 0.2, calcium stearate 0.02, BTA 0.03,
Wherein additive has the component raw material of following weight (kg) to be mixed to prepare: air-entrained concrete building block waste material 15, three second Hydramine 0.3, hexamethylenamine 0.2, rosin acid sodium 0.025, sodium lignin sulfonate 0.012, acid-sludge 2, quick lime 3, Borax 0.6, ten Dialkyl benzene sulfonic acids 0.3, water are appropriate, and high-speed stirred is obtained by mixing.
The processing method of high strenght flyash calcium sulfate crystal whiskers air-entrained concrete building block, comprises the following steps:
(1) each component is weighed by proportioning;
(2) riverway sludge weighed, flyash, calcium sulfate crystal whiskers, cement, quick lime are carried out pulverizing extremely in ball mill 180~220 mesh, obtain mixed material;
(3) agricultural crop straw is cut to 1-2cm, joins hot-water soak 10-12 hour of 60-70 DEG C, with aqueous slkali, After calcium salt soln processes, carrying out defibrination, refining concentration is about 15%~20%, obtains straw slurry, standby;
(4) by aluminium powder, dodecyl salicylic acid, polyoxyethylene aliphatic alcohol ether, triterpenoid saponin, calcium stearate, benzo three nitrogen Azoles adds appropriate water and stirs, and obtains pulpous state and is combined foaming agent, standby;
(5) mixed material that step (2) obtains is joined in blender, under stirring, add additional while add waterside Agent, after being then sufficiently stirred for 1-2 minute, adds the straw slurry that step (3) obtains, and after being sufficiently stirred for 2-5 minute, adds step Suddenly the compound foaming agent that (4) prepare is sufficiently stirred for, and obtains slurry;
(6) whipping process arranges Insulation, it is ensured that molding temperature during slip casting is at 40-45 DEG C;Slurry is watered Note to aero-concrete mould, be warming up to 55-70 DEG C and get angry 25-40 minute, pre-at a temperature of 50~70 DEG C after having got angry Supporting 2~4 hours, after blank strength reaches 0.8~1.1MPa, specification as required is cut;
(7) carrying out steam-cured in the complete base substrate of cutting being delivered to still kettle, the method for maintenance is: heat up 2~3 hours to greatly Air pressure reaches 0.9~1.2MPa, constant temperature and pressure 6-8 hour, then decrease temperature and pressure 2~3 hours are to room temperature, get product.
The intensity of the building block that the present embodiment 1 processes is high, and quality stability is good, and yield rate is high.Its performance test results is shown in Table 1 below.
The block performance testing result of table 1 present invention

Claims (2)

1. a high strenght flyash calcium sulfate crystal whiskers air-entrained concrete building block, it is characterised in that the weight portion of its constitutive material For: riverway sludge 30-40, flyash 20-30, calcium sulfate crystal whiskers 3-5, cement 4-6, quick lime 3-5, triethanolamine 0.02- 0.04, agricultural crop straw 20-25 waterglass 1-1.5, hydroxypropyl methyl cellulose 0.2-0.5, additive 1-2, aluminium powder 1-2, ten Dialkylsalicylic acids 0.2-0.4, polyoxyethylene aliphatic alcohol ether 0.01-0.02, triterpenoid saponin 0.2-0.3, calcium stearate 0.01- 0.03, BTA 0.02-0.04,
Described additive has the component raw material of following weight portion to be mixed to prepare: air-entrained concrete building block waste material 10-20, three ethanol Amine 0.2-0.4, hexamethylenamine 0.1-0.3, rosin acid sodium 0.02-0.03, sodium lignin sulfonate 0.01-0.015, acid-sludge 1-2, life Calx 2-3, Borax 0.5-0.8, DBSA 0.2-0.4, water are appropriate, and high-speed stirred is obtained by mixing.
The processing method of high strenght flyash calcium sulfate crystal whiskers air-entrained concrete building block the most according to claim 1, it is special Levy and be to comprise the following steps:
(1) each component is weighed by proportioning;
(2) riverway sludge weighed, flyash, calcium sulfate crystal whiskers, cement, quick lime are carried out in ball mill pulverizing to 180 ~220 mesh, obtain mixed material;
(3) agricultural crop straw is cut to 1-2cm, joins hot-water soak 10-12 hour of 60-70 DEG C, with aqueous slkali, calcium salt After solution processes, carrying out defibrination, refining concentration is about 15%~20%, obtains straw slurry, standby;
(4) aluminium powder, dodecyl salicylic acid, polyoxyethylene aliphatic alcohol ether, triterpenoid saponin, calcium stearate, BTA are added Enter appropriate water to stir, obtain pulpous state and be combined foaming agent, standby;
(5) mixed material that step (2) obtains is joined in blender, under stirring, while add waterside to add additive, so After be sufficiently stirred for 1-2 minute after, add the straw slurry that step (3) obtains, after being sufficiently stirred for 2-5 minute, add step (4) The compound foaming agent prepared is sufficiently stirred for, and obtains slurry;
(6) whipping process arranges Insulation, it is ensured that molding temperature during slip casting is at 40-45 DEG C;By slurry cast extremely In aero-concrete mould, be warming up to 55-70 DEG C and get angry 25-40 minute, after having got angry at a temperature of 50~70 DEG C precuring 2~ 4 hours, after blank strength reaches 0.8~1.1MPa, specification as required was cut;
(7) carrying out steam-cured in the complete base substrate of cutting being delivered to still kettle, the method for maintenance is: heat up 2~3 hours to atmospheric pressure Reach 0.9~1.2MPa, constant temperature and pressure 6-8 hour, then decrease temperature and pressure 2~3 hours are to room temperature, get product.
CN201610630594.3A 2016-08-03 2016-08-03 A kind of high strenght flyash calcium sulfate crystal whiskers air-entrained concrete building block and processing method thereof Pending CN106242401A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108017343A (en) * 2017-11-24 2018-05-11 湖北恒福节能科技有限公司 A kind of whisker reinforcement pervious concrete and preparation method thereof
CN109400064A (en) * 2018-11-20 2019-03-01 广州大学 A kind of calcium sulfate crystal whiskers aerogel foam concrete and preparation method thereof
CN111320448A (en) * 2020-03-24 2020-06-23 上海舟润实业有限公司 Autoclaved aerated concrete slab and preparation method thereof
CN112136816A (en) * 2020-09-27 2020-12-29 甘肃省科学院生物研究所 Compound preparation for preventing and treating early bolting of angelica sinensis as well as use method and application thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102875067A (en) * 2012-08-25 2013-01-16 马鞍山豹龙新型建材有限公司 Modified nano mineral powder-containing aerated brick

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102875067A (en) * 2012-08-25 2013-01-16 马鞍山豹龙新型建材有限公司 Modified nano mineral powder-containing aerated brick

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108017343A (en) * 2017-11-24 2018-05-11 湖北恒福节能科技有限公司 A kind of whisker reinforcement pervious concrete and preparation method thereof
CN109400064A (en) * 2018-11-20 2019-03-01 广州大学 A kind of calcium sulfate crystal whiskers aerogel foam concrete and preparation method thereof
CN111320448A (en) * 2020-03-24 2020-06-23 上海舟润实业有限公司 Autoclaved aerated concrete slab and preparation method thereof
CN112136816A (en) * 2020-09-27 2020-12-29 甘肃省科学院生物研究所 Compound preparation for preventing and treating early bolting of angelica sinensis as well as use method and application thereof

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Application publication date: 20161221