CN107021681A - A kind of preparation method based on the cement water-permeable brick that chrome leather scrap is raw material - Google Patents
A kind of preparation method based on the cement water-permeable brick that chrome leather scrap is raw material Download PDFInfo
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- CN107021681A CN107021681A CN201710262062.3A CN201710262062A CN107021681A CN 107021681 A CN107021681 A CN 107021681A CN 201710262062 A CN201710262062 A CN 201710262062A CN 107021681 A CN107021681 A CN 107021681A
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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
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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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/023—Fired or melted materials
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
- E01C11/225—Paving specially adapted for through-the-surfacing drainage, e.g. perforated, porous; Preformed paving elements comprising, or adapted to form, passageways for carrying off drainage
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C5/00—Pavings made of prefabricated single units
- E01C5/06—Pavings made of prefabricated single units made of units with cement or like binders
- E01C5/065—Pavings made of prefabricated single units made of units with cement or like binders characterised by their structure or component materials, e.g. concrete layers of different structure, special additives
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Architecture (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of based on preparation method of the chrome leather scrap for the cement water-permeable brick of raw material, comprise the following steps：First with collagen and chromium ion formation height mineralizer of the hydroxyapatite in sintering furnace with chrome leather scrap, prepare the solid-state mineralizing material containing chromic salts, and classified by particle size, finally it regard the solid-state mineralizing material of different-grain diameter as material, basic unit's blank, chromatograph blank, enhancement layer blank and pervious bed blank is respectively prepared respectively at the mixing such as cement, flyash, natural river sand, wollastonite in powder, then by it respectively through digestion, rolling, laying, compressing, cement water-permeable brick is made in natural curing.Water-permeable brick intensity produced by the present invention is big, and water permeability is good, and cost is low.
Description
Technical field：
The present invention relates to building material field, it is the cement water-permeable brick of raw material based on chrome leather scrap to be specifically related to a kind of
Preparation method.
Background technology：
With continuing for urbanization process, the surface soil with infiltration function is constantly covered by non-permeable road surface.
Hard surface is that people's trip and cargo movement bring facility, but also generates a series of problems：Non-permeable road surface is blocked
Exchanging for soil and atmosphere moisture and heat, causes city " tropical island effect " occur；Rainwater is caused to be difficult to permeate during rainfall
Into the timely recharge of groundwater of soil；Most rainwater in city need to drain through city planting ductwork, and rainwater is entering drainpipe
Rainwash can be produced before road, surface pond is caused, while rainwash can bring ground pollution thing in river into, city is used
The existence of water security and aquatic animals and plants produces threat.Above mentioned problem can then be alleviated using water-permeable pavement, rainwater can be by saturating
Oozed under aqueous road surface, and crest discharge is reduced when dropping heavy rain, municipal drainage system load is eased, while can also filter
Partial contamination thing in water.Water-permeable brick is exactly a kind of important porous pavement material.
It can be divided into cement base water-permeable brick, sintering brick permeable to water and resin base water-permeable brick by bonding mechanism permeable pavement brick.Cement
Base water-permeable brick will be gathered materials by inorganic coagulation material cement to be bonded together, sintering brick permeable to water then by high temperature resistant gather materials between high temperature
Formed and bonded after adhesive melting cooling, resin base water-permeable brick is then more to be used as binding agent using hydrophilic thermosetting resin.But mesh
Preceding water-permeable brick energy consumption during preparation is higher, and low intensity, and cost is greatly improved.
The content of the invention：
It is an object of the invention to provide a kind of based on preparation method of the chrome leather scrap for the cement water-permeable brick of raw material, this method
Obtained cement water-permeable brick is cheap using chrome leather scrap, paper pulp mud as raw material, and solves the two secondary dirt to environment
The problem of dye and processing cost are high, is made water-permeable brick intensity greatly, water permeability is excellent.
To achieve the above object, the present invention uses following technical scheme：
A kind of preparation method based on the cement water-permeable brick that chrome leather scrap is raw material, comprises the following steps：
(1) chrome leather scrap, water, ferrous sulfate heptahydrate, calcium phosphate mixture are placed in reactor, are heated to 35-45 DEG C, stir
Mix 20-40min to be well mixed, then adjust phase pH to 9-10 with mass concentration for 20% sodium hydroxide solution, and continue to stir
Mix 30min, be finally pressed into solid shape with 10-20t cargo jacks, be placed in sintering furnace, be passed through after nitrogen 5min with 2-5 DEG C/
Min speed is warming up to 100-120 DEG C, is incubated 20-40min, then be warming up to 400-600 DEG C, insulation with 10 DEG C/min speed
30-60min, sintering cools to room temperature with the furnace after finishing, and is ground into particle, and filler is made, and its diameter is 0.5-6mm；
(2) filler obtained above is divided into three kinds by diameter, diameter is being filled out for small particle for 0.5-1mm
Material, diameter be more than 1mm be less than 3mm for middle particle diameter filler, diameter be more than 3mm be less than or equal to 6mm for large particle size filler；
(3) after Ludox and water being mixed evenly, small particle size filler obtained above is added, and adds lactic acid, is risen
Temperature is to 100-120 DEG C, and constant temperature stirring 3-6h is cooled to room temperature, obtains mixed slurry, by obtained mixed slurry and natural river
Pervious bed blank is made after sand, flyash, calcium carbonate, cement mixing and stirring, it is standby；
(3) by cement, flyash, gangue, polyacrylamide, PLA, calcium silicates, silica flour, it is obtained above in
Enhancement layer blank is made after mixing in particle diameter filler and water, standby；
(4) chromatograph blank is made after mixing natural river sand, cement, titanium dioxide, curing agent and water；
(5) by natural river sand, cement, flyash, large particle size filler obtained above, talcum powder, wollastonite in powder, polypropylene
Acid, it is dried and crushed into after the paper pulp mud of particle and water are mixed basic unit's blank is made；
(6) pervious bed blank obtained above, enhancement layer blank, chromatograph blank, basic unit's blank are disappeared in continous way respectively
Change in storehouse after progress digestion 1-4h the rolling 2-4min in edge runner again, then by successively by basic unit's blank, the chromatograph after rolling
Blank, enhancement layer blank, pervious bed blank are laid in press punching block, compressing, compacting automatic solidification 20-40min after finishing
After be stripped, be made adobe；
(7) by adobe natural curing obtained above 15-30 days.
As the preferred of above-mentioned technical proposal, the calcium in step (1) the calcium phosphate mixture is calcium hydroxide, calcium chloride,
One kind in calcium nitrate, phosphorus is one kind in sodium dihydrogen phosphate, disodium hydrogen phosphate, sodium phosphate.
As the preferred of above-mentioned technical proposal, in step (1), when the calcium in calcium phosphate mixture is calcium hydroxide, calcium phosphorus
Ca/P ratios in mixture are 2.0-3.0, when calcium is calcium chloride, calcium nitrate, and the Ca/P ratios in calcium phosphate mixture are 3.0-
4.0, the Ca/P are than the quantity ratio for Ca and P element.
It is used as the preferred of above-mentioned technical proposal, step (1) described chrome leather scrap, water, ferrous sulfate heptahydrate, calcium phosphate mixture
Consumption in parts by weight, be respectively：100-110 parts of chrome leather scrap, 20-35 parts, 5-7 parts ferrous sulfate heptahydrates of water, 10-15 parts
Calcium phosphate mixture.
As the preferred of above-mentioned technical proposal, in step (2), the consumption of each component in pervious bed blank, in parts by weight,
Respectively：2-3 parts of Ludox, 10-15 parts of water, 1.5-4 parts of small particle size filler, 1-1.3 parts of lactic acid, 40-70 parts of natural river sand, powder
35-65 parts of coal ash, 1-3 parts of calcium carbonate, 20-30 parts of cement.
As the preferred of above-mentioned technical proposal, in step (3), the consumption of each component in enhancement layer blank, in parts by weight,
Respectively：20-35 parts of cement, 50-75 parts of flyash, 1-5 parts of gangue, 0.5-2.0 parts of polyacrylamide, 1-2 parts of PLA,
2-6 parts of calcium silicates, 1-3 parts of silica flour, 4-7 parts of middle particle diameter filler, 10-20 parts of water.
As the preferred of above-mentioned technical proposal, the consumption of each component is in parts by weight in step (4), in the chromatograph blank
Respectively：60-85 parts of natural river sand, 35-55 parts of cement, 5-15 parts of titanium dioxide, 2-6 parts of curing agent, 20-30 parts of water.
As the preferred of above-mentioned technical proposal, the consumption of each component is in parts by weight in step (5), in basic unit's blank
Respectively：50-80 parts of natural river sand, 20-40 parts of cement, 40-60 parts of flyash, 8-15 parts of large particle size filler, talcum powder 7-10
Part, 10-15 parts of wollastonite in powder, 6-8 parts of polyacrylic acid, 10-20 parts of paper pulp mud particle, 30-40 parts of water.
As the preferred of above-mentioned technical proposal, in step (6), basic unit's blank after the rolling, chromatograph blank, enhancement layer
Blank, the consumption of pervious bed blank in parts by weight, respectively basic unit's blank 60-80 parts, 10-15 parts of chromatograph blank, enhancement layer
16-30 parts of blank, 10-20 parts of pervious bed blank.
As the preferred of above-mentioned technical proposal, in step (6), the compressing pressure is 15-35MPa.
Compared with prior art, the invention has the advantages that：
The present invention inserts sintering first with hydroxyapatite using chrome leather scrap, paper pulp mud as raw material in sintering furnace
With collagen and chromium ion formation height mineralization product in stove, the solid-state mineralizing material containing chromic salts of preparation serves as filling out for water-permeable brick
It, and is distinguished by material in preparation process by particle size, water-permeable brick produced by the present invention include successively basic unit, chromatograph,
Enhancement layer and pervious bed, and in layers between add the filler obtained above of different-grain diameter size, between each layer of reasonable adjusting
Formula, and preparation condition so that the obtained permeable effect of water-permeable brick is good, intensity is big, prepares cost low.
Embodiment：
In order to be best understood from the present invention, the present invention is further described by embodiment by the present invention, and embodiment is served only for solution
The present invention is released, any restriction will not be caused to the present invention.
Embodiment 1
A kind of preparation method based on the cement water-permeable brick that chrome leather scrap is raw material, comprises the following steps：
(1) 100 parts of chrome leather scraps, 20 parts of water, 5 parts of ferrous sulfate heptahydrates, 10 parts of calcium phosphate mixtures are placed in reactor,
35 DEG C are heated to, stirring 20min is well mixed, then adjust phase pH to 9- with mass concentration for 20% sodium hydroxide solution
10, and continue to stir 30min, solid shape finally is pressed into 10-20t cargo jacks, is placed in sintering furnace, nitrogen 5min is passed through
120 DEG C are warming up to 2 DEG C/min speed afterwards, 20min is incubated, then 600 DEG C, insulation are warming up to 10 DEG C/min speed
30min, sintering cools to room temperature with the furnace after finishing, and is ground into particle, and filler is made, and its diameter is 0.5-6mm；Its
In, the calcium in calcium phosphate mixture is calcium hydroxide, and phosphorus is disodium hydrogen phosphate, and Ca/P ratios are 2.0, and the Ca/P ratios are Ca and P members
The quantity ratio of element；
(2) filler obtained above is divided into three kinds by diameter, diameter is being filled out for small particle for 0.5-1mm
Material, diameter be more than 1mm be less than 3mm for middle particle diameter filler, diameter be more than 3mm be less than or equal to 6mm for large particle size filler；
(3) after 2 parts of Ludox and 10 parts of water being mixed evenly, 1.5 parts of small particle size fillers obtained above are added, and
Add 1 part of lactic acid, be warming up to 100 DEG C, constant temperature stirring 3h is cooled to room temperature, obtains mixed slurry, by obtained mixed slurry with
Pervious bed blank is made after 40 parts of natural river sands, 35 parts of flyash, 1 part of calcium carbonate, 20 parts of cement mixing and stirrings, it is standby；
(3) by 20 parts of cement, 50 parts of flyash, 1 part of gangue, 0.5 part of polyacrylamide, 1 part of PLA, 2 parts of silicic acid
Enhancement layer blank is made after mixing in calcium, 1 part of silica flour, 4 parts of middle particle diameter fillers obtained above and 10 parts of water, standby；
(4) it is made after mixing 60 parts of natural river sands, 35 parts of cement, 5 parts of titanium dioxides, 2 parts of curing agent and 20 parts of water
Chromatograph blank；
(5) by 50 parts of natural river sands, 20 parts of cement, 40 parts of flyash, 8 parts of large particle size fillers obtained above, 7 parts of talcums
Powder, 10 parts of wollastonites in powder, 6 parts of polyacrylic acid, 10 parts be dried and crushed into the paper pulp mud of particle and 30 parts of water mix after make
Into basic unit's blank；
(6) by 10 parts of pervious bed blanks obtained above, 16 parts of enhancement layer blanks, 10 parts of chromatograph blanks, 60 parts of basic unit's bases
Material carries out after digestion 1h the rolling 2min in edge runner again in successive slaking silo respectively, then by successively by the base after rolling
Layer blank, chromatograph blank, enhancement layer blank, pervious bed blank are laid in press punching block, compressing, and compacting is automatic solidifying after finishing
Gu being stripped after 20min, adobe is made；
(7) by adobe natural curing obtained above 15-30 days.
Embodiment 2
A kind of preparation method based on the cement water-permeable brick that chrome leather scrap is raw material, comprises the following steps：
(1) 110 parts of chrome leather scraps, 35 parts of water, 7 parts of ferrous sulfate heptahydrates, 15 parts of calcium phosphate mixtures are placed in reactor,
45 DEG C are heated to, stirring 40min is well mixed, then adjust phase pH to 9- with mass concentration for 20% sodium hydroxide solution
10, and continue to stir 30min, solid shape finally is pressed into 10-20t cargo jacks, is placed in sintering furnace, nitrogen 5min is passed through
100 DEG C are warming up to 5 DEG C/min speed afterwards, 40min is incubated, then 400 DEG C, insulation are warming up to 10 DEG C/min speed
60min, sintering cools to room temperature with the furnace after finishing, and is ground into particle, and filler is made, and its diameter is 0.5-6mm；Its
In, calcium in calcium phosphate mixture is calcium hydroxide, and phosphorus is sodium dihydrogen phosphate, and Ca/P ratios are 3.0, Ca/P than for Ca and P element
Quantity ratio；
(2) filler obtained above is divided into three kinds by diameter, diameter is being filled out for small particle for 0.5-1mm
Material, diameter be more than 1mm be less than 3mm for middle particle diameter filler, diameter be more than 3mm be less than or equal to 6mm for large particle size filler；
(3) after 3 parts of Ludox and 15 parts of water being mixed evenly, 4 parts of small particle size fillers obtained above are added, and add
Enter 1.3 parts of lactic acid, be warming up to 120 DEG C, constant temperature stirring 6h is cooled to room temperature, obtains mixed slurry, by obtained mixed slurry with
Pervious bed blank is made after 70 parts of natural river sands, 65 parts of flyash, 3 parts of calcium carbonate, 30 parts of cement mixing and stirrings, it is standby；
(3) by 35 parts of cement, 75 parts of flyash, 5 parts of gangues, 2.0 parts of polyacrylamides, 2 parts of PLAs, 6 parts of silicic acid
Enhancement layer blank is made after mixing in calcium, 3 parts of silica flours, 7 parts of middle particle diameter fillers obtained above and 20 parts of water, standby；
(4) it is made after mixing 85 parts of natural river sands, 55 parts of cement, 15 parts of titanium dioxides, 6 parts of curing agent and 30 parts of water
Chromatograph blank；
(5) by 80 parts of natural river sands, 40 parts of cement, 60 parts of flyash, 15 parts of large particle size fillers obtained above, 10 parts of cunnings
Stone flour, 15 parts of wollastonites in powder, 8 parts of polyacrylic acid, 20 parts be dried and crushed into the paper pulp mud of particle and after 40 parts of water mix
Basic unit's blank is made；
(6) by 20 parts of pervious bed blanks obtained above, 30 parts of enhancement layer blanks, 15 parts of chromatograph blanks, 80 parts of basic unit's bases
Material carries out after digestion 4h the rolling 4min in edge runner again in successive slaking silo respectively, then by successively by the base after rolling
Layer blank, chromatograph blank, enhancement layer blank, pervious bed blank are laid in press punching block, compressing, and compacting is automatic solidifying after finishing
Gu being stripped after 40min, adobe is made；
(7) by adobe natural curing obtained above 15-30 days.
Embodiment 3
A kind of preparation method based on the cement water-permeable brick that chrome leather scrap is raw material, comprises the following steps：
(1) 105 parts of chrome leather scraps, 25 parts of water, 5.5 parts of ferrous sulfate heptahydrates, 11 parts of calcium phosphate mixtures are placed in reactor
In, be heated to 35 DEG C, stirring 25min is well mixed, then with mass concentration for 20% sodium hydroxide solution adjust phase pH to
9-10, and continue to stir 30min, solid shape finally is pressed into 10-20t cargo jacks, is placed in sintering furnace, nitrogen is passed through
115 DEG C are warming up to 3 DEG C/min speed after 5min, 25min is incubated, then 550 DEG C, insulation are warming up to 10 DEG C/min speed
50min, sintering cools to room temperature with the furnace after finishing, and is ground into particle, and filler is made, and its diameter is 0.5-6mm；Its
In, calcium in calcium phosphate mixture is calcium chloride, phosphorus be Ca/P ratios in sodium phosphate, calcium phosphate mixture be 3.0, Ca/P ratios be Ca and
The quantity ratio of P element；
(2) filler obtained above is divided into three kinds by diameter, diameter is being filled out for small particle for 0.5-1mm
Material, diameter be more than 1mm be less than 3mm for middle particle diameter filler, diameter be more than 3mm be less than or equal to 6mm for large particle size filler；
(3) after 2.3 parts of Ludox and 11 parts of water being mixed evenly, 2 parts of small particle size fillers obtained above are added, and
1.1 parts of lactic acid are added, 105 DEG C are warming up to, constant temperature stirring 4h is cooled to room temperature, obtains mixed slurry, by obtained mixed slurry
It is standby with pervious bed blank is made after 45 parts of natural river sands, 45 parts of flyash, 1.5 parts of calcium carbonate, 22 parts of cement mixing and stirrings；
(3) by 20 parts of cement, 55 parts of flyash, 2 parts of gangues, 1 part of polyacrylamide, 1.2 parts of PLAs, 3 parts of silicic acid
Enhancement layer blank is made after mixing in calcium, 1.5 parts of silica flours, 4.5 parts of middle particle diameter fillers obtained above and 12 parts of water, standby
With；
(4) it is made after mixing 65 parts of natural river sands, 40 parts of cement, 7 parts of titanium dioxides, 3 parts of curing agent and 22 parts of water
Chromatograph blank；
(5) by 60 parts of natural river sands, 25 parts of cement, 45 parts of flyash, 10 parts of large particle size fillers obtained above, 8 parts of cunnings
Stone flour, 11 parts of wollastonites in powder, 6.5 parts of polyacrylic acid, 12 parts of paper pulp muds and 33 parts of water for being dried and crushed into particle are mixed
After basic unit's blank is made；
(6) by 12 parts of pervious bed blanks obtained above, 20 parts of enhancement layer blanks, 11 parts of chromatograph blanks, 65 parts of basic unit's bases
Material carries out after digestion 2h the rolling 3min in edge runner again in successive slaking silo respectively, then by successively by the base after rolling
Layer blank, chromatograph blank, enhancement layer blank, pervious bed blank are laid in press punching block, compressing, and compacting is automatic solidifying after finishing
Gu being stripped after 25min, adobe is made；
(7) by adobe natural curing obtained above 15-30 days.
Embodiment 4
A kind of preparation method based on the cement water-permeable brick that chrome leather scrap is raw material, comprises the following steps：
(1) 105 parts of chrome leather scraps, 30 parts of water, 6 parts of ferrous sulfate heptahydrates, 12 parts of calcium phosphate mixtures are placed in reactor,
40 DEG C are heated to, stirring 30min is well mixed, then adjust phase pH to 9- with mass concentration for 20% sodium hydroxide solution
10, and continue to stir 30min, solid shape finally is pressed into 10-20t cargo jacks, is placed in sintering furnace, nitrogen 5min is passed through
110 DEG C are warming up to 4 DEG C/min speed afterwards, 30min is incubated, then 500 DEG C, insulation are warming up to 10 DEG C/min speed
40min, sintering cools to room temperature with the furnace after finishing, and is ground into particle, and filler is made, and its diameter is 0.5-6mm；Its
In, the calcium in calcium phosphate mixture is calcium nitrate, and phosphorus is sodium dihydrogen phosphate, and Ca/P ratios are 4.0, Ca/P than the number for Ca and P element
Amount ratio；
(2) filler obtained above is divided into three kinds by diameter, diameter is being filled out for small particle for 0.5-1mm
Material, diameter be more than 1mm be less than 3mm for middle particle diameter filler, diameter be more than 3mm be less than or equal to 6mm for large particle size filler；
(3) after 2.6 parts of Ludox and 13 parts of water being mixed evenly, 3 parts of small particle size fillers obtained above are added, and
1.2 parts of lactic acid are added, 110 DEG C are warming up to, constant temperature stirring 5h is cooled to room temperature, obtains mixed slurry, by obtained mixed slurry
It is standby with pervious bed blank is made after 60 parts of natural river sands, 55 parts of flyash, 2 parts of calcium carbonate, 24 parts of cement mixing and stirrings；
(3) by 30 parts of cement, 60 parts of flyash, 3 parts of gangues, 1 part of polyacrylamide, 1.4 parts of PLAs, 4 parts of silicic acid
Enhancement layer blank is made after mixing in calcium, 2 parts of silica flours, 6 parts of middle particle diameter fillers obtained above and 10-20 parts of water, standby；
(4) it is made after mixing 70 parts of natural river sands, 45 parts of cement, 9 parts of titanium dioxides, 4 parts of curing agent and 24 parts of water
Chromatograph blank；
(5) by 70 parts of natural river sands, 30 parts of cement, 50 parts of flyash, 12 parts of large particle size fillers obtained above, 8 parts of cunnings
Stone flour, 12 parts of wollastonites in powder, 7 parts of polyacrylic acid, 14 parts be dried and crushed into the paper pulp mud of particle and after 36 parts of water mix
Basic unit's blank is made；
(6) by 14 parts of pervious bed blanks obtained above, 20 parts of enhancement layer blanks, 12 parts of chromatograph blanks, 70 parts of basic unit's bases
Material carries out after digestion 2h the rolling 2min in edge runner again in successive slaking silo respectively, then by successively by the base after rolling
Layer blank, chromatograph blank, enhancement layer blank, pervious bed blank are laid in press punching block, compressing, and compacting is automatic solidifying after finishing
Gu being stripped after 30min, adobe is made；
(7) by adobe natural curing obtained above 15-30 days.
Embodiment 5
A kind of preparation method based on the cement water-permeable brick that chrome leather scrap is raw material, comprises the following steps：
(1) 110 parts of chrome leather scraps, 35 parts of water, 6.5 parts of ferrous sulfate heptahydrates, 13 parts of calcium phosphate mixtures are placed in reactor
In, be heated to 40 DEG C, stirring 25min is well mixed, then with mass concentration for 20% sodium hydroxide solution adjust phase pH to
9-10, and continue to stir 30min, solid shape finally is pressed into 10-20t cargo jacks, is placed in sintering furnace, nitrogen is passed through
105 DEG C are warming up to 4 DEG C/min speed after 5min, 35min is incubated, then 450 DEG C, insulation are warming up to 10 DEG C/min speed
50min, sintering cools to room temperature with the furnace after finishing, and is ground into particle, and filler is made, and its diameter is 0.5-6mm；Its
In, the calcium in calcium phosphate mixture is calcium nitrate, and phosphorus is sodium dihydrogen phosphate, and Ca/P ratios are 3.0, Ca/P than the number for Ca and P element
Amount ratio；
(2) filler obtained above is divided into three kinds by diameter, diameter is being filled out for small particle for 0.5-1mm
Material, diameter be more than 1mm be less than 3mm for middle particle diameter filler, diameter be more than 3mm be less than or equal to 6mm for large particle size filler；
(3) after 2.8 parts of Ludox and 14 parts of water being mixed evenly, 3.5 parts of small particle size fillers obtained above are added,
And 1.3 parts of lactic acid are added, 115 DEG C are warming up to, constant temperature stirring 5h is cooled to room temperature, obtains mixed slurry, by obtained mixing slurry
Material is standby with pervious bed blank is made after 65 parts of natural river sands, 60 parts of flyash, 2.5 parts of calcium carbonate, 26 parts of cement mixing and stirrings
With；
(3) by 32 parts of cement, 70 parts of flyash, 4 parts of gangues, 1.5 parts of polyacrylamides, 1.8 parts of PLAs, 5 parts of silicon
Enhancement layer blank is made after mixing in sour calcium, 2.5 parts of silica flours, 6 parts of middle particle diameter fillers obtained above and 18 parts of water, standby
With；
(4) it is made after mixing 75 parts of natural river sands, 50 parts of cement, 12 parts of titanium dioxides, 5 parts of curing agent and 27 parts of water
Chromatograph blank；
(5) by 70 parts of natural river sands, 35 parts of cement, 55 parts of flyash, 14 parts of large particle size fillers obtained above, 9 parts of cunnings
Stone flour, 14 parts of wollastonites in powder, 7.5 parts of polyacrylic acid, 16 parts of paper pulp muds and 38 parts of water for being dried and crushed into particle are mixed
After basic unit's blank is made；
(6) by 16 parts of pervious bed blanks obtained above, 28 parts of enhancement layer blanks, 14 parts of chromatograph blanks, 75 parts of basic unit's bases
Material carries out after digestion 3h the rolling 3min in edge runner again in successive slaking silo respectively, then by successively by the base after rolling
Layer blank, chromatograph blank, enhancement layer blank, pervious bed blank are laid in press punching block, compressing, and compacting is automatic solidifying after finishing
Gu being stripped after 35min, adobe is made；
(7) by adobe natural curing obtained above 15-30 days.
Comparative example 1
Basic unit, enhancement layer and pervious bed do not add the filler produced by the present invention, other preparation conditions and the phase of embodiment 5
Together.
Comparative example 2
Filler prepare after the completion of sieved without particle diameter, be directly appended in each layer of water-permeable brick, other preparation conditions and
Embodiment 5 is identical.
After tested, the compression strength and coefficient of permeability of water-permeable brick obtained above are as follows：
| Compression strength, MPa | Coefficient of permeability, cm2/s | |
| Embodiment 1 | 62 | 7.8×10-2 |
| Embodiment 2 | 60 | 7.5×10-2 |
| Embodiment 3 | 63 | 6.9×10-2 |
| Embodiment 4 | 66 | 7.6×10-2 |
| Embodiment 5 | 65 | 7.9×10-2 |
| Comparative example 1 | 27 | 1.5×10-2 |
| Comparative example 2 | 35 | 3.8×10-2 |
From the point of view of above-mentioned data, relative to comparative example, water-permeable brick compression strength produced by the present invention is more preferable, water permeability
It is more excellent, it is primarily due to, screening particle is carried out to filler first, bulky grain is mixed with bulky grain, little particle is mixed with little particle
Close, can preferably form the network structure of connection, it is therefore prevented that little particle filling bulky grain gap when bulky grain is mixed with little particle
Cause the problem of small coefficient of permeability caused of network gap structure is reduced.
Claims (10)
1. it is a kind of based on preparation method of the chrome leather scrap for the cement water-permeable brick of raw material, it is characterised in that to comprise the following steps：
(1) chrome leather scrap, water, ferrous sulfate heptahydrate, calcium phosphate mixture are placed in reactor, are heated to 35-45 DEG C, stirring
20-40min is well mixed, and then adjusts phase pH to 9-10 with mass concentration for 20% sodium hydroxide solution, and continue stirring
30min, is finally pressed into solid shape with 10-20t cargo jacks, is placed in sintering furnace, is passed through after nitrogen 5min with 2-5 DEG C/min
Speed be warming up to 100-120 DEG C, be incubated 20-40min, then 400-600 DEG C is warming up to 10 DEG C/min speed, be incubated 30-
60min, sintering cools to room temperature with the furnace after finishing, and is ground into particle, and filler is made, and its diameter is 0.5-6mm；
(2) filler obtained above is divided into three kinds by diameter, diameter be 0.5-1mm for small particle size filler, directly
Footpath size be more than 1mm be less than 3mm for middle particle diameter filler, diameter be more than 3mm be less than or equal to 6mm for large particle size filler；
(3) after Ludox and water being mixed evenly, small particle size filler obtained above is added, and adds lactic acid, is warming up to
100-120 DEG C, constant temperature stirring 3-6h is cooled to room temperature, obtains mixed slurry, by obtained mixed slurry and natural river sand, powder
Pervious bed blank is made after coal ash, calcium carbonate, cement mixing and stirring, it is standby；
(3) by cement, flyash, gangue, polyacrylamide, PLA, calcium silicates, silica flour, middle particle diameter obtained above
Enhancement layer blank is made after mixing in filler and water, standby；
(4) chromatograph blank is made after mixing natural river sand, cement, titanium dioxide, curing agent and water；
(5) by natural river sand, cement, flyash, large particle size filler obtained above, talcum powder, wollastonite in powder, polyacrylic acid,
Basic unit's blank is made after being dried and crushed into the paper pulp mud of particle and water mixing；
(6) by pervious bed blank obtained above, enhancement layer blank, chromatograph blank, basic unit's blank respectively in successive slaking silo
The rolling 2-4min in edge runner again after interior progress digestion 1-4h, then by successively by basic unit's blank after rolling, chromatograph blank,
Enhancement layer blank, pervious bed blank are laid in press punching block, compressing, and compacting takes off after finishing after automatic solidification 20-40min
Mould, is made adobe；
(7) by adobe natural curing obtained above 15-30 days.
2. as claimed in claim 1 a kind of based on preparation method of the chrome leather scrap for the cement water-permeable brick of raw material, its feature exists
In：Calcium in step (1) the calcium phosphate mixture is one kind in calcium hydroxide, calcium chloride, calcium nitrate, and phosphorus is biphosphate
One kind in sodium, disodium hydrogen phosphate, sodium phosphate.
3. as claimed in claim 1 a kind of based on preparation method of the chrome leather scrap for the cement water-permeable brick of raw material, its feature exists
In：In step (1), when the calcium in calcium phosphate mixture is calcium hydroxide, the Ca/P ratios in calcium phosphate mixture are 2.0-3.0, when
When calcium is calcium chloride, calcium nitrate, the Ca/P ratios in calcium phosphate mixture are 3.0-4.0, and the Ca/P is than the quantity for Ca and P element
Than.
4. as claimed in claim 1 a kind of based on preparation method of the chrome leather scrap for the cement water-permeable brick of raw material, its feature exists
In：Step (1) described chrome leather scrap, water, ferrous sulfate heptahydrate, calcium phosphate mixture consumption in parts by weight, be respectively：Containing chromium
100-110 parts of shavings, 20-35 parts, 5-7 parts ferrous sulfate heptahydrates of water, 10-15 parts of calcium phosphate mixtures.
5. as claimed in claim 1 a kind of based on preparation method of the chrome leather scrap for the cement water-permeable brick of raw material, its feature exists
In：In step (2), the consumption of each component in pervious bed blank in parts by weight, is respectively：2-3 parts of Ludox, water 10-15
Part, 1.5-4 parts of small particle size filler, 1-1.3 parts of lactic acid, 40-70 parts of natural river sand, 35-65 parts of flyash, 1-3 parts of calcium carbonate, water
20-30 parts of mud.
6. as claimed in claim 1 a kind of based on preparation method of the chrome leather scrap for the cement water-permeable brick of raw material, its feature exists
In：In step (3), the consumption of each component in enhancement layer blank in parts by weight, is respectively：20-35 parts of cement, flyash 50-
75 parts, 1-5 parts of gangue, 0.5-2.0 parts of polyacrylamide, 1-2 parts of PLA, 2-6 parts of calcium silicates, 1-3 parts of silica flour, middle grain
Filler 4-7 parts of footpath, 10-20 parts of water.
7. as claimed in claim 1 a kind of based on preparation method of the chrome leather scrap for the cement water-permeable brick of raw material, its feature exists
In：In step (4), the consumption of each component is respectively in parts by weight in the chromatograph blank：60-85 parts of natural river sand, cement
35-55 parts, 5-15 parts of titanium dioxide, 2-6 parts of curing agent, 20-30 parts of water.
8. as claimed in claim 1 a kind of based on preparation method of the chrome leather scrap for the cement water-permeable brick of raw material, its feature exists
In：In step (5), the consumption of each component is respectively in parts by weight in basic unit's blank：50-80 parts of natural river sand, cement
20-40 parts, 40-60 parts of flyash, 8-15 parts of large particle size filler, 7-10 parts of talcum powder, 10-15 parts of wollastonite in powder, polyacrylic acid
6-8 parts, 10-20 parts of paper pulp mud particle, 30-40 parts of water.
9. as claimed in claim 1 a kind of based on preparation method of the chrome leather scrap for the cement water-permeable brick of raw material, its feature exists
In：In step (6), basic unit's blank after the rolling, chromatograph blank, enhancement layer blank, the consumption of pervious bed blank is with weight
Part meter, respectively basic unit's blank 60-80 parts, 10-15 parts of chromatograph blank, 16-30 parts of enhancement layer blank, pervious bed blank 10-20
Part.
10. as claimed in claim 1 a kind of based on preparation method of the chrome leather scrap for the cement water-permeable brick of raw material, its feature exists
In：In step (6), the compressing pressure is 15-35MPa.
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| CN108558301A (en) * | 2018-05-30 | 2018-09-21 | 黄旭东 | A kind of preparation method of high intensity water-permeable brick |
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