CN107176817A - A kind of high tenacity steam-pressing aero-concrete and preparation method thereof - Google Patents
A kind of high tenacity steam-pressing aero-concrete and preparation method thereof Download PDFInfo
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- CN107176817A CN107176817A CN201710399867.2A CN201710399867A CN107176817A CN 107176817 A CN107176817 A CN 107176817A CN 201710399867 A CN201710399867 A CN 201710399867A CN 107176817 A CN107176817 A CN 107176817A
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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
- C04B28/14—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 containing calcium sulfate cements
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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
- C04B14/00—Use 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
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/10—Clay
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1018—Coating or impregnating with organic materials
- C04B20/1029—Macromolecular compounds
- C04B20/1048—Polysaccharides, e.g. cellulose, or derivatives thereof
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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
- 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
Abstract
The present invention provides a kind of high tenacity steam-pressing aero-concrete and preparation method thereof, and primary raw material includes by weight：Calcine 15 20 parts of red mud powder, 24 32 parts of flyash, 5 10 parts of gypsum, 12 18 parts of quick lime, 35 parts of conserving material in starch-grafted anion non-ionic group, 23 parts of toughening material, 20 30 parts of cement, 12 parts of water reducer, 12 parts of polyacrylate, 25 parts of Tris HCl cushioning liquid, 10 18 parts of water.Using the modification galapectite and hydroxyethyl cellulose that toughness reinforcing efficiency is excellent, by multi-step surface modification reaction, two kinds of toughening materials are effectively combined, so as to form a kind of unique composite toughening system.The modification galapectite prepared can be fully dispersed in concrete, effectively plays the effect of material coordination plasticizing, and assigning concrete integrally has good toughness, isotropism, fatigue resistance.
Description
Technical field
The invention belongs to building material technical field, and in particular to a kind of high tenacity steam-pressing aero-concrete and its preparation side
Method.
Background technology
In existing Aerated concrete products, cement-lime-powder ash air-entrained concrete has material source wide because of it
General, product quality preferably, realizes the comprehensive utilization of flyash, occupies the larger market share.Recently as environmental improvement
Multinomial measure put into effect, thermal power generation corporations gradually decrease, and the yield reduction of flyash causes flyash rise in price, this
Outer to cause base substrate easily to collapse mould because flyash dispersiveness is stronger, finished product fragility is big, easily goes out during transport and use
Existing hollowing, breakage, problems of crack, in order to improve this phenomenon, it usually needs the toughness of increase steam-pressing aero-concrete, this
The concrete toughness reinforcing of invention, using the modification galapectite and hydroxyethyl cellulose that toughness reinforcing efficiency is excellent, is passed through with modified galapectite
Multi-step surface modification reaction, two kinds of toughening materials are effectively combined, so as to form a kind of unique composite toughening system.Prepare
The modification galapectite gone out can be fully dispersed in concrete, effectively plays the effect of material coordination plasticizing, assigns concrete good
Toughness, isotropism, fatigue resistance, be a kind of high performance concrete toughening material.The concrete toughness reinforcing of the present invention is modified
Galapectite easily can be well mixed with other concrete components, be a kind of high performance concrete toughening material, preparation
High tenacity steam-pressing aero-concrete and preparation method thereof has good strength and toughness, can be widely used in building construction
Field.
The content of the invention
It is an object of the invention to provide a kind of high tenacity steam-pressing aero-concrete and preparation method thereof, the present invention uses one
The modification galapectite available for concrete toughness reinforcing is planted, it is reacted first with thionyl chloride using the galapectite of activated processing,
Then with difunctional organic compound reaction, make galapectite area load labile functional groups, then reacted with Cyanuric Chloride, obtained
Be present the galapectite of active chloride triazine ring in surface, finally prepared with hydroxyethyl cellulose by nucleophilic substitution.Should
In modified galapectite, the mass content ratio of hydroxyethyl cellulose and galapectite is about 0.1-0.3:1.
A kind of high tenacity steam-pressing aero-concrete, it is raw materials used to include by weight：
Calcine 15-20 part of red mud powder, 24-32 parts of flyash, 5-10 parts of gypsum, 12-18 parts of quick lime, it is starch-grafted the moon from
Conserving material 3-5 parts in son-non-ionic group, 2-3 parts of toughening material, 20-30 parts of cement, 1-2 parts of water reducer, polyacrylate
1-2 parts, 2-5 parts of Tris-HCl cushioning liquid, 10-18 parts of water.
The toughening material is modified galapectite, and its preparation method comprises the following steps：
（1）By the galapectite and thionyl chloride of activated processing in organic solvent J, stirred at 30-50 DEG C after 5-12 h,
In ultrasound 8-12 h at 60-80 DEG C in 20 kHz, 100 KW supersonic wave cleaning machine, then with 3500-5000 rpm turn
Speed centrifugation 20-30 min, after separating solid and being cleaned through organic solvent K, then the vacuum drying 24-48 h at 30-40 DEG C；
（2）By above-mentioned steps（1）Galapectite, difunctional organic compound and the 3- picolines of processing are in organic solvent J
Mixing, is stirred after 3-12 h at 40-50 DEG C, under nitrogen protection, in 20 kHz, 100 KW supersonic wave cleaning machine in
At 80-90 DEG C after ultrasonic reaction 5-8 h, 3- picolines and organic solvent J are evaporated off, then after blended solvent L is cleaned, in 10-
24-36 h are dried in vacuo at 20 DEG C；
（3）By above-mentioned steps（2）The galapectite and Cyanuric Chloride of processing are mixed in tetrahydrofuran, and 12- is stirred at 0-10 DEG C
24 h, in after ultrasound 2-6 h at 0-10 DEG C in 20 kHz, 100 KW supersonic wave cleaning machine, then react at 0-10 DEG C
After 30-72 h, cleaned through tetrahydrofuran, 24-48 h are dried in vacuo at 10-15 DEG C；
（4）By above-mentioned steps（3）After the galapectite of processing dissolves in 1-METHYLPYRROLIDONE, it is added to and is dissolved with ethoxy fibre
In the pyridine solution for tieing up element, 3-10 h are stirred at 10-20 DEG C, in 10-20 in 40 kHz, 200 KW supersonic wave cleaning machine
Ultrasound 1-3 h at DEG C, are warming up to after 40-60 DEG C of isothermal reaction 24-48 h, then be warming up to 83-95 DEG C of constant temperature under nitrogen protection
24-48 h are reacted, solvent is evaporated off, after being eluted with water, obtain being modified galapectite product after being dried in vacuo 24-48 h at 50 DEG C.
Above-mentioned steps（1）In activated processing galapectite be 1-20 kg, thionyl chloride be 5-50 kg；Organic solvent J
For 30-200 L.
Above-mentioned steps（1）In organic solvent J be dimethylbenzene, 1-METHYLPYRROLIDONE or N, in N '-dimethyl formamide
One kind.
Above-mentioned steps（1）In organic solvent K be one kind in tetrahydrofuran or acetone.
Above-mentioned steps（2）In galapectite be 3-20 kg；Difunctional organic compound is 1-5 kg；3- picolines
For 1-5 L；Organic solvent J is 50-200 L.
Above-mentioned steps（2）In difunctional organic compound be ethylene glycol and 1,3- propane diols in one kind.
Above-mentioned steps（2）In mixed solvent L be made up of ethanol, acetone and water, the wherein volume ratio of ethanol, acetone and water
For 3:1:6.
Above-mentioned steps（3）In galapectite be 2-18 kg；Cyanuric Chloride is 0.5-5 kg；Tetrahydrofuran is 50-200 L.
Above-mentioned steps（4）In galapectite be 2-15 kg；1-METHYLPYRROLIDONE is 50-260 L；Hydroxyethyl cellulose
For 1-5 kg；Pyridine is 20-80 L.
Above-mentioned steps（4）In hydroxyethyl cellulose viscosity average molecular weigh be 5000-30000, substitution value is 0.5-2.5.
In above-mentioned steps（1）Described in the activation process of galapectite of activated processing comprise the following steps：
1）Galapectite is taken, is handled through mechanical crushing and uses 400 mesh sieves stand-by after selecting；
2）Respectively load 55 a diameter of 5 mm stainless steel ball and 50 a diameter of 10 mm in two L nylon tanks of identical 12
Stainless steel ball, be then respectively adding through step 1）The kg of galapectite 5 after processing, then 500 ml absolute ethyl alcohols are added dropwise respectively, and
Sealed with nylon lid；Two ball grinders are symmetrically put into planetary ball mill, are 300 rpm and every 60 minutes in rotating speed
Under conditions of automatic conversion direction of rotation after ball milling 45-50 h, the chopped galapectite that average length is 180-200 nm is obtained；
3）Take step 2）The galapectite after handling that is chopped is added in the aqueous solution that pH is the Tween 40 that 8, concentration is 12 wt%
20 h of ultrasound, filtering, after being eluted with water, in being dried in vacuo galapectite that activation process is obtained after 24 h at 65-67 DEG C.
Described galapectite is commercially available, its main specifications：Character：White powder；Density：2.4-2.5g/cm3；Constitute into
Point：SiO2：58.23、Al2O3：40.96、Fe2O3：0.34、TiO2：0.15、P2O5：0.14；Pipe external diameter：40-60 nm；Bore：
15-20 nm；Length：<1.1 μm；Specific surface area：52.6 m2/g。
Described Tween 40 (CAS No. 9005-66-7) is commercially available, its main specifications：Character：Amber oily liquid
Body；Acid number (KOHmg/g)：≤2.0；Hydroxyl value (KOHmg/g)：85-100；HLB value：15.5；Saponification number (KOHmg/g)：40-55；
Moisture content (%)：≤2.5.
B will calcine maintenance material in red mud powder, flyash, gypsum, quick lime, starch-grafted Anionic-nonionic group
Material, composite toughening material, cement, water reducer, polyacrylate, Tris-HCl is mixed in proportion, carries out dry stirring 15 minutes, so
After add suitable quantity of water, be again stirring for 30 minutes, be then prepared into concrete product, mark is supported 28 days, has just obtained high tenacity steam pressure
Aerated concrete products.
Compared with the prior art, technical scheme has the advantages that：
Concrete toughness reinforcing provided by the present invention is environment-friendly with modified galapectite, has good dispersiveness in water.This changes
Property galapectite preparation condition readily satisfy, and raw material sources are abundant, and cost is relatively low.
The concrete toughness reinforcing of the present invention is fine using the excellent modification galapectite of toughness reinforcing efficiency and ethoxy with modified galapectite
Dimension element, by multi-step surface modification reaction, two kinds of toughening materials is effectively combined, so as to form a kind of unique composite toughening
System.The modification galapectite prepared can be fully dispersed in concrete, effectively plays the effect of material coordination plasticizing, assigns
Concrete integrally has good toughness, isotropism, fatigue resistance, is a kind of high performance concrete toughening material, the present invention
The modified galapectite of concrete toughness reinforcing can easily mix and be uniformly dispersed with other concrete components.
Specific implementation method
Illustrate technical scheme with specific embodiment below, but the present invention includes scope not limited to this：
Embodiment 1
A kind of high tenacity steam-pressing aero-concrete, primary raw material includes by weight：
Calcine 15 parts of red mud powder, 24 parts of flyash, 5 parts of gypsum, 12 parts of quick lime, starch-grafted Anionic-nonionic group
Interior 3 parts of conserving material, 2 parts of toughening material, 20 parts of cement, 1 part of water reducer, 1 part of polyacrylate, Tris-HCl cushioning liquid 2
Part, 10 parts of water.
The toughening material is modified galapectite, and its preparation method comprises the following steps：
（1）By the galapectite and thionyl chloride of activated processing in organic solvent J, stirred at 30 DEG C after 5 h, 20
In ultrasonic 8 h at 60 DEG C in kHz, 100 KW supersonic wave cleaning machine, 20 min, separation are then centrifuged with 3500 rpm rotating speed
Solid and after being cleaned through organic solvent K, then it is dried in vacuo at 30 DEG C 24 h；
（2）By above-mentioned steps（1）Galapectite, difunctional organic compound and the 3- picolines of processing are in organic solvent J
Mixing, at 40 DEG C stir 3h after, under nitrogen protection, in 20 kHz, 100 KW supersonic wave cleaning machine at 80 DEG C
After the h of ultrasonic reaction 5,3- picolines and organic solvent J are evaporated off, then after blended solvent L is cleaned, be dried in vacuo at 10 DEG C
24 h；
（3）By above-mentioned steps（2）The galapectite and Cyanuric Chloride of processing are mixed in tetrahydrofuran, and 12 h are stirred at 0 DEG C,
In after ultrasonic 2 h at 0 DEG C in 20 kHz, 100 KW supersonic wave cleaning machine, then react after 30h at 0 DEG C, through tetrahydrofuran
Clean, 24 h are dried in vacuo at 10 DEG C；
（4）By above-mentioned steps（3）After the galapectite of processing dissolves in 1-METHYLPYRROLIDONE, it is added to and is dissolved with ethoxy fibre
In the pyridine solution for tieing up element, 3 h are stirred at 10 DEG C, in ultrasound 1 at 10 DEG C in 40 kHz, 200 KW supersonic wave cleaning machine
H, is warming up to after 40 DEG C of h of isothermal reaction 24 under nitrogen protection, then is warming up to 83 DEG C of h of isothermal reaction 24, and solvent is evaporated off, water is used
After cleaning, it is dried in vacuo at 50 DEG C after 24 h and obtains being modified galapectite product.
The organic solvent J is dimethylbenzene；The organic solvent K is tetrahydrofuran；The difunctional organic compound
For ethylene glycol；The mixed solvent L is made up of ethanol, acetone and water, and wherein the volume ratio of ethanol, acetone and water is 3:1:6.
Step（1）In activated processing galapectite be 3 kg, thionyl chloride be 5 kg；Organic solvent J is 30 L.
Step（2）In galapectite be 3kg；Difunctional organic compound is 1 kg；3- picolines are 1 L；It is organic
Solvent J is 50 L.
Step（3）In galapectite be 2 kg；Cyanuric Chloride is 0.5 kg；Tetrahydrofuran is 50L.
Step（4）In galapectite be 2 kg；1-METHYLPYRROLIDONE is 50 L；Hydroxyethyl cellulose is 1kg；Pyridine is
20 L。
Step（4）In hydroxyethyl cellulose viscosity average molecular weigh be 5000, substitution value is 0.5.
Step（1）Described in the activation process of galapectite of activated processing comprise the following steps：
1）Galapectite is taken, is handled through mechanical crushing and uses 400 mesh sieves stand-by after selecting；
2）Respectively load 55 a diameter of 5 mm stainless steel ball and 50 a diameter of 10 mm in two L nylon tanks of identical 12
Stainless steel ball, be then respectively adding through step 1）The kg of galapectite 5 after processing, then 500 ml absolute ethyl alcohols are added dropwise respectively, and
Sealed with nylon lid；Two ball grinders are symmetrically put into planetary ball mill, are 300 rpm and every 60 minutes in rotating speed
Under conditions of automatic conversion direction of rotation after the h of ball milling 45, the chopped galapectite that average length is 200 nm is obtained；
3）Take step 2）The galapectite after handling that is chopped is added in the aqueous solution that pH is the Tween 40 that 8, concentration is 12 wt%
20 h of ultrasound, filtering, after being eluted with water, in being dried in vacuo galapectite that activation process is obtained after 24 h at 65 DEG C.
Described galapectite is commercially available, its main specifications：Character：White powder；Density：2.4-2.5g/cm3；Constitute into
Point：SiO2：58.23、Al2O3：40.96、Fe2O3：0.34、TiO2：0.15、P2O5：0.14；Pipe external diameter：40-60 nm；Bore：
15-20 nm；Length：<1.1 μm；Specific surface area：52.6 m2/g。
Described Tween 40 (CAS No. 9005-66-7) is commercially available, its main specifications：Character：Amber oily liquid
Body；Acid number (KOHmg/g)：≤2.0；Hydroxyl value (KOHmg/g)：85-100；HLB value：15.5；Saponification number (KOHmg/g)：40-55；
Moisture content (%)：≤2.5.
The preparation method of high tenacity steam-pressing aero-concrete, by calcining red mud powder, flyash, gypsum, quick lime, water
Conserving material, composite toughening material, water reducer, polyacrylate, Tris- in mud, starch-grafted Anionic-nonionic group
HCl is mixed in proportion, is carried out dry stirring 15 minutes, is then added suitable quantity of water, be again stirring for 30 minutes, be then prepared into concrete
Product, mark is supported 28 days, has just obtained high tenacity steam-pressing aero-concrete product.
Embodiment 2
A kind of high tenacity steam-pressing aero-concrete, primary raw material includes by weight：
Calcine 18 parts of red mud powder, 30 parts of flyash, 8 parts of gypsum, 15 parts of quick lime, starch-grafted Anionic-nonionic group
Interior 4 parts of conserving material, 2 parts of toughening material, 25 parts of cement, 2 parts of water reducer, 2 parts of polyacrylate, Tris-HCl cushioning liquid 3
Part, 15 parts of water.
The toughening material is modified galapectite, and its preparation method comprises the following steps：
（1）By the galapectite and thionyl chloride of activated processing in organic solvent J, stirred at 40 DEG C after 8 h, 20
In ultrasonic 10 h at 70 DEG C in kHz, 100 KW supersonic wave cleaning machine, 25 min are then centrifuged with 4000 rpm rotating speed, point
After being cleaned from solid and through organic solvent K, then it is dried in vacuo at 35 DEG C 36 h；
（2）By above-mentioned steps（1）Galapectite, difunctional organic compound and the 3- picolines of processing are in organic solvent J
Mixing, stirred at 45 DEG C after 8 h, under nitrogen protection, in 20 kHz, 100 KW supersonic wave cleaning machine at 85 DEG C
After the h of ultrasonic reaction 6,3- picolines and organic solvent J are evaporated off, then after blended solvent L is cleaned, be dried in vacuo at 15 DEG C
30 h；
（3）By above-mentioned steps（2）The galapectite and Cyanuric Chloride of processing are mixed in tetrahydrofuran, and 18 h are stirred at 5 DEG C,
In after ultrasonic 4 h at 5 DEG C in 20 kHz, 100 KW supersonic wave cleaning machine, then react after 51h at 5 DEG C, through tetrahydrofuran
Clean, 36 h are dried in vacuo at 12 DEG C；
（4）By above-mentioned steps（3）After the galapectite of processing dissolves in 1-METHYLPYRROLIDONE, it is added to and is dissolved with ethoxy fibre
In the pyridine solution for tieing up element, 7 h are stirred at 15 DEG C, in ultrasonic at 15 DEG C in 40 kHz, 200 KW supersonic wave cleaning machine
2h, is warming up to after 50 DEG C of h of isothermal reaction 36 under nitrogen protection, then is warming up to 90 DEG C of h of isothermal reaction 36, and solvent is evaporated off, and uses
After water is cleaned, it is dried in vacuo at 50 DEG C after 36 h and obtains being modified galapectite product.
The organic solvent J is 1-METHYLPYRROLIDONE；The organic solvent K is acetone；The difunctional organises
Compound is 1,3- propane diols；The mixed solvent L is made up of ethanol, acetone and water, and the volume ratio of wherein ethanol, acetone and water is
3:1:6。
Step（1）In activated processing galapectite be 10 kg, thionyl chloride be 20 kg；Organic solvent J is 100 L.
Step（2）In galapectite be 10kg；Difunctional organic compound is 3 kg；3- picolines are 3 L；It is organic
Solvent J is 150 L.
Step（3）In galapectite be 10 kg；Cyanuric Chloride is 2 kg；Tetrahydrofuran is 100L.
Step（4）In galapectite be 10 kg；1-METHYLPYRROLIDONE is 150 L；Hydroxyethyl cellulose is 3 kg；Pyrrole
Pyridine is 50L.
Step（4）In hydroxyethyl cellulose viscosity average molecular weigh be 10000, substitution value is 1.0.
Step（1）Described in the activation process of galapectite of activated processing comprise the following steps：
1）Galapectite is taken, is handled through mechanical crushing and uses 400 mesh sieves stand-by after selecting；
2）Respectively load 55 a diameter of 5 mm stainless steel ball and 50 a diameter of 10 mm in two L nylon tanks of identical 12
Stainless steel ball, be then respectively adding through step 1）The kg of galapectite 5 after processing, then 500 ml absolute ethyl alcohols are added dropwise respectively, and
Sealed with nylon lid；Two ball grinders are symmetrically put into planetary ball mill, are 300 rpm and every 60 minutes in rotating speed
Under conditions of automatic conversion direction of rotation after the h of ball milling 48, the chopped galapectite that average length is 190 nm is obtained；
3）Take step 2）The galapectite after handling that is chopped is added in the aqueous solution that pH is the Tween 40 that 8, concentration is 12 wt%
20 h of ultrasound, filtering, after being eluted with water, in being dried in vacuo galapectite that activation process is obtained after 24 h at 66 DEG C.
Described galapectite is commercially available, its main specifications：Character：White powder；Density：2.4-2.5g/cm3；Constitute into
Point：SiO2：58.23、Al2O3：40.96、Fe2O3：0.34、TiO2：0.15、P2O5：0.14；Pipe external diameter：40-60 nm；Bore：
15-20 nm；Length：<1.1 μm；Specific surface area：52.6 m2/g。
Described Tween 40 (CAS No. 9005-66-7) is commercially available, its main specifications：Character：Amber oily liquid
Body；Acid number (KOHmg/g)：≤2.0；Hydroxyl value (KOHmg/g)：85-100；HLB value：15.5；Saponification number (KOHmg/g)：40-55；
Moisture content (%)：≤2.5.
The preparation method of high tenacity steam-pressing aero-concrete, by calcining red mud powder, flyash, gypsum, quick lime, water
Conserving material, composite toughening material, water reducer, polyacrylate, Tris- in mud, starch-grafted Anionic-nonionic group
HCl is mixed in proportion, is carried out dry stirring 15 minutes, is then added suitable quantity of water, be again stirring for 30 minutes, be then prepared into concrete
Product, mark is supported 28 days, has just obtained high tenacity steam-pressing aero-concrete product.
Embodiment 3
A kind of high tenacity steam-pressing aero-concrete, primary raw material includes by weight：
Calcine 20 parts of red mud powder, 32 parts of flyash, 10 parts of gypsum, 18 parts of quick lime, starch-grafted Anionic-nonionic group
Interior 5 parts of conserving material, 3 parts of toughening material, 30 parts of cement, 2 parts of water reducer, 2 parts of polyacrylate, Tris-HCl cushioning liquid 5
Part, 18 parts of water.
The toughening material is modified galapectite, and its preparation method comprises the following steps：
（1）By the galapectite and thionyl chloride of activated processing in organic solvent J, stirred at 50 DEG C after 12 h, 20
In ultrasonic 12 h at 80 DEG C in kHz, 100 KW supersonic wave cleaning machine, 30 min are then centrifuged with 5000 rpm rotating speed, point
After being cleaned from solid and through organic solvent K, then it is dried in vacuo at 40 DEG C 48 h；
（2）By above-mentioned steps（1）Galapectite, difunctional organic compound and the 3- picolines of processing are in organic solvent J
Mixing, stirred at 50 DEG C after 12 h, under nitrogen protection, in 20 kHz, 100 KW supersonic wave cleaning machine in 90 DEG C
After the lower h of ultrasonic reaction 8,3- picolines and organic solvent J are evaporated off, then after blended solvent L is cleaned, vacuum is done at 20 DEG C
Dry 36 h；
（3）By above-mentioned steps（2）The galapectite and Cyanuric Chloride of processing are mixed in tetrahydrofuran, and 24 h are stirred at 10 DEG C,
In after ultrasonic 6 h at 10 DEG C in 20 kHz, 100 KW supersonic wave cleaning machine, then react after 72 h at 10 DEG C, through four
Hydrogen furans is cleaned, and 48 h are dried in vacuo at 15 DEG C；
（4）By above-mentioned steps（3）After the galapectite of processing dissolves in 1-METHYLPYRROLIDONE, it is added to and is dissolved with ethoxy fibre
In the pyridine solution for tieing up element, 10 h are stirred at 20 DEG C, in ultrasonic at 20 DEG C in 40 kHz, 200 KW supersonic wave cleaning machine
3 h, are warming up to after 60 DEG C of h of isothermal reaction 48 under nitrogen protection, then are warming up to 95 DEG C of h of isothermal reaction 48, and solvent is evaporated off, and use
After water is cleaned, it is dried in vacuo at 50 DEG C after 48 h and obtains being modified galapectite product.
The organic solvent J is N, N '-dimethyl formamide；The organic solvent K is tetrahydrofuran；The difunctional
Organic compound is ethylene glycol；The mixed solvent L is made up of ethanol, acetone and water, wherein the volume ratio of ethanol, acetone and water
For 3:1:6.
Step（1）In activated processing galapectite be 20 kg, thionyl chloride be 50 kg；Organic solvent J is 200 L.
Step（2）In galapectite be 20 kg；Difunctional organic compound is 5 kg；3- picolines are 5 L；Have
Machine solvent J is 200 L.
Step（3）In galapectite be 18 kg；Cyanuric Chloride is 5 kg；Tetrahydrofuran is 200 L.
Step（4）In galapectite be 15 kg；1-METHYLPYRROLIDONE is 260 L；Hydroxyethyl cellulose is 5 kg；Pyrrole
Pyridine is 80 L.
Step（4）In hydroxyethyl cellulose viscosity average molecular weigh be 30000, substitution value is 2.5.
Step（1）Described in the activation process of galapectite of activated processing comprise the following steps：
1）Galapectite is taken, is handled through mechanical crushing and uses 400 mesh sieves stand-by after selecting；
2）Respectively load 55 a diameter of 5 mm stainless steel ball and 50 a diameter of 10 mm in two L nylon tanks of identical 12
Stainless steel ball, be then respectively adding through step 1）The kg of galapectite 5 after processing, then 500 ml absolute ethyl alcohols are added dropwise respectively, and
Sealed with nylon lid；Two ball grinders are symmetrically put into planetary ball mill, are 300 rpm and every 60 minutes in rotating speed
Under conditions of automatic conversion direction of rotation after the h of ball milling 50, the chopped galapectite that average length is 200 nm is obtained；
3）Take step 2）The galapectite after handling that is chopped is added in the aqueous solution that pH is the Tween 40 that 8, concentration is 12 wt%
20 h of ultrasound, filtering, after being eluted with water, in being dried in vacuo galapectite that activation process is obtained after 24 h at 67 DEG C.
Described galapectite is commercially available, its main specifications：Character：White powder；Density：2.4-2.5g/cm3；Constitute into
Point：SiO2：58.23、Al2O3：40.96、Fe2O3：0.34、TiO2：0.15、P2O5：0.14；Pipe external diameter：40-60 nm；Bore：
15-20 nm；Length：<1.1 μm；Specific surface area：52.6 m2/g。
Described Tween 40 (CAS No. 9005-66-7) is commercially available, its main specifications：Character：Amber oily liquid
Body；Acid number (KOHmg/g)：≤2.0；Hydroxyl value (KOHmg/g)：85-100；HLB value：15.5；Saponification number (KOHmg/g)：40-55；
Moisture content (%)：≤2.5.
The preparation method of high tenacity steam-pressing aero-concrete, by calcining red mud powder, flyash, gypsum, quick lime, water
Conserving material, composite toughening material, water reducer, polyacrylate, Tris- in mud, starch-grafted Anionic-nonionic group
HCl is mixed in proportion, is carried out dry stirring 15 minutes, is then added suitable quantity of water, be again stirring for 30 minutes, be then prepared into concrete
Product, mark is supported 28 days, has just obtained high tenacity steam-pressing aero-concrete product.
The high tenacity steam-pressing aero-concrete product compression strength that the present invention is prepared： 4.68-5.76MPa；Splitting
Tensile strength： 0.50-0.80MPa；Volume-weighted average： 664kg/m3；Thermal conductivity factor：0.031-0.041(W/m. k) ；Inhale
Sonic system number： 0.23-0.33.
The foregoing is only presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification, should all belong to the covering scope of the present invention.
Claims (10)
1. a kind of high tenacity steam-pressing aero-concrete, it is characterised in that the concrete primary raw material includes by weight：
Calcine 15-20 part of red mud powder, 24-32 parts of flyash, 5-10 parts of gypsum, 12-18 parts of quick lime, it is starch-grafted the moon from
Conserving material 3-5 parts in son-non-ionic group, 2-3 parts of toughening material, 20-30 parts of cement, 1-2 parts of water reducer, polyacrylate
1-2 parts, 2-5 parts of Tris-HCl cushioning liquid, 10-18 parts of water.
2. high tenacity steam-pressing aero-concrete according to claim 1, it is characterised in that the toughening material is modified angstrom
Lip river stone, its preparation method comprises the following steps：
（1）By the galapectite and thionyl chloride of activated processing in organic solvent J, stirred at 30-50 DEG C after 5-12 h,
In ultrasound 8-12 h at 60-80 DEG C in 20 kHz, 100 KW supersonic wave cleaning machine, then with 3500-5000 rpm turn
Speed centrifugation 20-30 min, after separating solid and being cleaned through organic solvent K, then the vacuum drying 24-48 h at 30-40 DEG C；
（2）By above-mentioned steps（1）Galapectite, difunctional organic compound and the 3- picolines of processing are in organic solvent J
Mixing, is stirred after 3-12 h at 40-50 DEG C, under nitrogen protection, in 20 kHz, 100 KW supersonic wave cleaning machine in
At 80-90 DEG C after ultrasonic reaction 5-8 h, 3- picolines and organic solvent J are evaporated off, then after blended solvent L is cleaned, in 10-
24-36 h are dried in vacuo at 20 DEG C；
（3）By above-mentioned steps（2）The galapectite and Cyanuric Chloride of processing are mixed in tetrahydrofuran, and 12- is stirred at 0-10 DEG C
24 h, in after ultrasound 2-6 h at 0-10 DEG C in 20 kHz, 100 KW supersonic wave cleaning machine, then react at 0-10 DEG C
After 30-72 h, cleaned through tetrahydrofuran, 24-48 h are dried in vacuo at 10-15 DEG C；
（4）By above-mentioned steps（3）After the galapectite of processing dissolves in 1-METHYLPYRROLIDONE, it is added to and is dissolved with ethoxy fibre
In the pyridine solution for tieing up element, 3-10 h are stirred at 10-20 DEG C, in 10-20 in 40 kHz, 200 KW supersonic wave cleaning machine
Ultrasound 1-3 h at DEG C, are warming up to after 40-60 DEG C of isothermal reaction 24-48 h, then be warming up to 83-95 DEG C of constant temperature under nitrogen protection
24-48 h are reacted, solvent is evaporated off, after being eluted with water, obtain being modified galapectite product after being dried in vacuo 24-48 h at 50 DEG C.
3. high tenacity steam-pressing aero-concrete according to claim 2, it is characterised in that the organic solvent J is diformazan
One kind in benzene, 1-METHYLPYRROLIDONE or N, N '-dimethyl formamide；The organic solvent K is in tetrahydrofuran or acetone
One kind；The difunctional organic compound is one kind in ethylene glycol and 1,3- propane diols；The mixed solvent L is by second
Alcohol, acetone and water composition, the wherein volume ratio of ethanol, acetone and water are 3:1:6.
4. high tenacity steam-pressing aero-concrete according to claim 2, it is characterised in that step（1）In activated processing
Galapectite be 1-20 kg, thionyl chloride be 5-50 kg；Organic solvent J is 30-200 L.
5. high tenacity steam-pressing aero-concrete according to claim 2, it is characterised in that step（2）In galapectite be
3-20 kg；Difunctional organic compound is 1-5 kg；3- picolines are 1-5 L；Organic solvent J is 50-200 L.
6. high tenacity steam-pressing aero-concrete according to claim 2, it is characterised in that step（3）In galapectite be
2-18 kg；Cyanuric Chloride is 0.5-5 kg；Tetrahydrofuran is 50-200 L.
7. high tenacity steam-pressing aero-concrete according to claim 2, it is characterised in that step（4）In galapectite be
2-15 kg；1-METHYLPYRROLIDONE is 50-260 L；Hydroxyethyl cellulose is 1-5 kg；Pyridine is 20-80 L.
8. high tenacity steam-pressing aero-concrete according to claim 2, it is characterised in that step（4）In ethoxy it is fine
The viscosity average molecular weigh of dimension element is 5000-30000, and substitution value is 0.5-2.5.
9. high tenacity steam-pressing aero-concrete according to claim 2, it is characterised in that step（1）Described in it is activated
The activation process of the galapectite of processing comprises the following steps：
1）Galapectite is taken, is handled through mechanical crushing and uses 400 mesh sieves stand-by after selecting；
2）Respectively load 55 a diameter of 5 mm stainless steel ball and 50 a diameter of 10 mm in two L nylon tanks of identical 12
Stainless steel ball, be then respectively adding through step 1）The kg of galapectite 5 after processing, then 500 ml absolute ethyl alcohols are added dropwise respectively, and
Sealed with nylon lid；Two ball grinders are symmetrically put into planetary ball mill, are 300 rpm and every 60 minutes in rotating speed
Under conditions of automatic conversion direction of rotation after ball milling 45-50 h, the chopped galapectite that average length is 180-200 nm is obtained；
3）Take step 2）The galapectite after handling that is chopped is added in the aqueous solution that pH is the Tween 40 that 8, concentration is 12 wt%
20 h of ultrasound, filtering, after being eluted with water, in being dried in vacuo galapectite that activation process is obtained after 24 h at 65-67 DEG C.
10. a kind of method for preparing the high tenacity steam-pressing aero-concrete as described in claim 1-9 is any, it is characterised in that
By conserving material in calcining red mud powder, flyash, gypsum, quick lime, starch-grafted Anionic-nonionic group, it is combined and increases
Tough material, cement, water reducer, polyacrylate, Tris-HCl are mixed in proportion, carry out dry stirring 15 minutes, are then added suitable
Water is measured, is again stirring for 30 minutes, concrete product is then prepared into, mark is supported 28 days, has just obtained the steam pressurized coagulation of high tenacity
Native produce.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105400120A (en) * | 2015-12-30 | 2016-03-16 | 福建江夏学院 | Composite material for toughening concrete |
| CN105541201A (en) * | 2015-12-30 | 2016-05-04 | 福建江夏学院 | High-toughness haydite concrete and preparation method thereof |
| CN105622132A (en) * | 2015-12-30 | 2016-06-01 | 中环建筑（福建）有限公司 | Sponge-city environment-friendly recycled-aggregate pervious concrete and preparing method thereof |
| CN106588103A (en) * | 2016-12-16 | 2017-04-26 | 侯风光 | Autoclaved aerated concrete block doped with water-retaining polypropylene fiber and preparation method of autoclaved aerated concrete block |
-
2017
- 2017-05-31 CN CN201710399867.2A patent/CN107176817A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105400120A (en) * | 2015-12-30 | 2016-03-16 | 福建江夏学院 | Composite material for toughening concrete |
| CN105541201A (en) * | 2015-12-30 | 2016-05-04 | 福建江夏学院 | High-toughness haydite concrete and preparation method thereof |
| CN105622132A (en) * | 2015-12-30 | 2016-06-01 | 中环建筑（福建）有限公司 | Sponge-city environment-friendly recycled-aggregate pervious concrete and preparing method thereof |
| CN106588103A (en) * | 2016-12-16 | 2017-04-26 | 侯风光 | Autoclaved aerated concrete block doped with water-retaining polypropylene fiber and preparation method of autoclaved aerated concrete block |
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Application publication date: 20170919 |