CN109265139A - A kind of pair of pollutant has the Ceramsite water permeable brick and preparation method of interception effect - Google Patents
A kind of pair of pollutant has the Ceramsite water permeable brick and preparation method of interception effect Download PDFInfo
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- CN109265139A CN109265139A CN201811143184.1A CN201811143184A CN109265139A CN 109265139 A CN109265139 A CN 109265139A CN 201811143184 A CN201811143184 A CN 201811143184A CN 109265139 A CN109265139 A CN 109265139A
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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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1324—Recycled material, e.g. tile dust, stone waste, spent refractory material
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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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
-
- 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1321—Waste slurries, e.g. harbour sludge, industrial muds
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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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/009—Porous or hollow ceramic granular materials, e.g. microballoons
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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
-
- 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
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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
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
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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
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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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
- C04B2111/40—Porous or lightweight materials
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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- Chemical & Material Sciences (AREA)
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- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
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- Environmental & Geological Engineering (AREA)
- Dispersion Chemistry (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Road Paving Structures (AREA)
- Treatment Of Sludge (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses Ceramsite water permeable bricks and preparation method that a kind of pair of pollutant has interception effect, with good permeable, permeability, flexural strength and compression strength are high, coefficient of permeability is big, rainwater can be made to rapidly permeate into underground, supplement the soil water and underground water, keep soil moisture, improve the life condition of urban ground plant and edaphon, to can reduce municipal drainage and pressure of flood, generate good result to the pollution and processing sewage that prevent public waters.In addition, Ceramsite water permeable brick carries out the preparation of base's haydite and surface layer haydite using construction waste, not only turns waste into wealth, saved resource, but also being capable of COD, Pb intracorporal to water2+、Zn2+、Cu2+、Cd2+、Cr2+Equal pollutants carry out adsorption cleaning processing, that is, have purified water body, and environmentally protective.
Description
Technical field
The present invention relates to building material technical fields, and in particular to a kind of pair of pollutant has the Ceramsite water permeable brick of interception effect
And preparation method.
Background technique
Water-permeable brick is originating from Holland, during Dutchman encloses Hai Zaocheng, discovery arrange the ground after seawater can because
Long Term Contact causes continual surface subsidence less than moisture.Once the dykes and dams on coastline are rushed to open, seawater can be rapid
The city more much lower than sea level is flushed to all to flood city of entirely bordering on the sea.In order to make ground no longer sink, Dutchman's manufacture
A kind of 100 millimeters 50 or 60 millimeters high of 200 mm wide of length of small-sized pavement brick is laid on surface of the street, and make brick and brick it
Between reserved 2 millimeters of gap.Rainwater can permeate the ground from the gap between brick when raining in this way.
Current various types of water-permeable bricks are developed in succession, and are applied to various occasions, as afforestation,
Flood control prevention waterlogging disaster etc..Such as common water-permeable brick: material is the repressed forming of porous concrete material of ordinary gravel, for general
Block pavement, square are the products that generalization is mated formation.Polymer fiber concrete permeable brick: material is granite bone
Material, high-strength cement and cement polymer reinforcing agent, and it is tight to blend polypropylene fibre, feeding proportion, through compression moulding after stirring,
It is mainly used for mating formation for the places such as pavement, square, the parking lot of municipal administration, important engineering and residential quarters.But currently,
Water-permeable brick function is more single, and in the case where water resource seriously pollutes, water-permeable brick cannot cut the pollutant in rainwater
It stays, cannot satisfy the use demand.Building waste refers to people in the production activity for being engaged in the construction industries such as removal, construction, finishing, repairerment
The general designation of the dregs of middle generation, waste and old concrete, waste and old masonry and other wastes.Classify by generating source, building waste can divide
For engineering dregs, decoration garbage, removal rubbish, engineering slurry etc.；Classify by constituent, can be divided into building waste dregs,
Concrete block, crushed stone, brick and tile fragment, waste mortar, mud, asphalt blocks, waste plastics, old metal, useless bamboo wood etc., build rubbish at present
Rubbish accumulation is more, but is all dropped substantially, is not used.
The patent of invention that number of patent application is 201310452532 discloses a kind of Ceramsite water permeable brick, by weight, packet
Include following component: 80-100 parts of haydite, 20-40 parts of cement, the coagulant for accounting for haydite weight 2-4%, accounts for pottery at 10-15 parts of silica sand
The water-reducing agent of grain weight 2-4%.The haydite that the invention produces silica sand dust combines a small amount of cement, coagulant, water-reducing agent
And silica sand fabric produces Ceramsite water permeable brick, this water-permeable brick replaces stone with haydite, and one side appearance is beautiful, two 1 sides
Face combines the light high-strength feature of this haydite, while it is polygonal that haydite, which is round stone, under normal conditions circular object compared with
Gap between polygonal object is big, and the manufactured permeable effect of water-permeable brick is good, but the standby water-permeable brick of the patent system does not have
The effect of standby purifying water body.
The invention that number of patent application is 201711468145.4 is related to a kind of water-permeable brick of purifying rainwater, which is divided into
The upper and lower；Upper layer is surface layer, and lower layer is base, and the ratio between surface layer and the thickness of base are 1: 5-6.The invention further relates to one kind
The method for preparing the water-permeable brick of purifying rainwater.In the base of the water-permeable brick of the invention haydite can adsorb suspended matter in rainwater and
Organic matter (VOCs), preventing water-permeable brick, permeability rate declines due to gap is caused to block for long-time service；Haydite can through zeolitization modification
Adsorb rainwater
In a small amount of heavy metal, prevent the pollution of underground water, but using the modified haydite of zeolitization in the patent, surface layer and
Base's raw material differs greatly, and preparation method is cumbersome, in addition, purifying water effect is not also verified further.
Summary of the invention
In view of the above existing problems in the prior art, the present invention provides a kind of pair of pollutants to have the haydite of interception effect permeable
Brick and preparation method thereof has good permeable, permeability, and flexural strength and compression strength are high, and coefficient of permeability is big, can make rain
Water rapidly permeates into underground, supplements the soil water and underground water, keeps soil moisture, improves urban ground plant and edaphon
Life condition.It can reduce municipal drainage and pressure of flood, there is good effect to the pollution and processing sewage that prevent public waters
Fruit makes on road not ponding, and the flexural strength of water-permeable brick is 5.3-6.7MPa, compression strength 34.7-44.5MPa, permeable system
Number is greater than 0.001cm/s.
To achieve the goals above, the technical solution adopted by the present invention is that: a kind of pair of pollutant has the haydite of interception effect
Water-permeable brick, including porous base course and permeable surface layer, the porous base course are integrally pressed into the permeable surface layer.
Preferably, permeable surface layer is covered in porous base course surface.
Any of the above-described scheme is preferably, and porous base course and permeable surface thickness ratio are 5-8:1.
Any of the above-described scheme is preferably, and porous base course and permeable surface thickness ratio are 5:1.
Any of the above-described scheme is preferably, and porous base course and permeable surface thickness ratio are 6:1.
Any of the above-described scheme is preferably, and porous base course and permeable surface thickness ratio are 7:1.
Any of the above-described scheme is preferably, and porous base course and permeable surface thickness ratio are 8:1.
Any of the above-described scheme is preferably, and porous base course is made using base's haydite, and permeable surface layer is made pottery using surface layer
Grain is made.
Any of the above-described scheme is preferably, and base's haydite and surface layer haydite are all made of construction waste and sludge, bastard coal
Stone is fired.
Any of the above-described scheme is preferably, base's haydite and surface layer haydite by 40%~60% sludge, 20%
Gangue, 20~40% construction waste be made.Construction waste refers to building concrete waste material.
Any of the above-described scheme is preferably, the weight ratio of sludge, gangue, construction waste in base's haydite and surface layer haydite
Example is identical.
Any of the above-described scheme is preferably, the weight ratio of sludge, gangue, construction waste in base's haydite and surface layer haydite
Example is different.
Any of the above-described scheme is preferably, and base's haydite is different with the granularity of surface layer haydite.
Any of the above-described scheme is preferably, and the particle size range of surface layer haydite is 0.25-2mm, and base's haydite particle size range is
2mm-5mm。
Any of the above-described scheme is preferably, and the granularity of surface layer haydite is 0.25mm, and base's haydite granularity is 2mm.
Any of the above-described scheme is preferably, and the granularity of surface layer haydite is 1mm, and base's haydite granularity is 3mm.
Any of the above-described scheme is preferably, and the granularity of surface layer haydite is 2mm, and base's haydite granularity is 5mm.
Any of the above-described scheme is preferably, and moisture percentage in sewage sludge is 40%~50%.
Any of the above-described scheme is preferably, and base's haydite and surface layer haydite are by 40% sludge, 20% bastard coal
Stone, 40% construction waste be made.
Any of the above-described scheme is preferably, and base's haydite and surface layer haydite are by 50% sludge, 20% bastard coal
Stone, 30% construction waste be made.
Any of the above-described scheme is preferably, and base's haydite and surface layer haydite are by 60% sludge, 20% bastard coal
Stone, 20 construction waste be made.
Any of the above-described scheme is preferably, and the porous base course is mixed using base's haydite, cement, reinforcing agent, water.
Reinforcing agent specifically has cement intensifier etc..
Any of the above-described scheme is preferably, and the porous base course is made using the raw material of following weight proportion: base
0.5-2 parts of haydite, 0.5-2 parts of cement, 0.2-0.6 parts of reinforcing agent, 0.1-0.5 parts of water.
Any of the above-described scheme is preferably, and the porous base course is made using the raw material of following weight proportion: base
0.5 part of haydite, 0.5 part of cement, 0.2 part of reinforcing agent, 0.1 part of water.
Any of the above-described scheme is preferably, and the porous base course is made using the raw material of following weight proportion: base
1 part of haydite, 1 part of cement, 0.4 part of reinforcing agent, 0.3 part of water.
Any of the above-described scheme is preferably, and the porous base course is made using the raw material of following weight proportion: base
2 parts of haydite, 2 parts of cement, 0.6 part of reinforcing agent, 0.5 part of water.
Any of the above-described scheme is preferably, and the permeable surface layer is mixed using surface layer haydite, cement, reinforcing agent, water.
Any of the above-described scheme is preferably, and the permeable surface layer is made using the raw material of following weight proportion: surface layer
0.5-2 parts of haydite, 0.5-2 parts of cement, 0.2-0.6 parts of reinforcing agent, 0.1-0.5 parts of water.
Any of the above-described scheme is preferably, and the permeable surface layer is made using the raw material of following weight proportion: surface layer
0.5 part of haydite, 0.5 part of cement, 0.2 part of reinforcing agent, 0.1 part of water.
Any of the above-described scheme is preferably, and the permeable surface layer is made using the raw material of following weight proportion: surface layer
1 part of haydite, 1 part of cement, 0.4 part of reinforcing agent, 0.3 part of water.
Any of the above-described scheme is preferably, and the permeable surface layer is made using the raw material of following weight proportion: surface layer
2 parts of haydite, 2 parts of cement, 0.6 part of reinforcing agent, 0.5 part of water.
Any of the above-described scheme is preferably, and the cement is prepared by municipal sludge clinker.
Any of the above-described scheme is preferably, and porous base course infiltration coefficient is greater than permeable surface layer infiltration coefficient.
Any of the above-described scheme is preferably, and permeable surface layer infiltration coefficient is not less than 0.01cm/s.
Any of the above-described scheme is preferably, and the particle size range of surface layer haydite is 0.25-2mm, and base's haydite particle size range is
2mm-5mm。
A kind of pair of pollutant has the preparation method of the Ceramsite water permeable brick of interception effect comprising the steps of:
Step (1): the preparation of base's haydite and surface layer haydite: construction waste being crushed, milling, and sludge press dry, then with
Press molding after gangue is mixed, is cooled to room temperature after sintering, is sieved, and haydite base haydite and surface layer pottery can be obtained
Grain；
Step (2): by surface layer haydite and reinforcing agent, cement mixing, water mixing is added, stirs evenly, obtains permeable surface layer
Mixture；By base's haydite and reinforcing agent, cement mixing, water mixing is added, stirs evenly to get porous base course mixture is arrived,
Step (3): permeable surface layer mixture and porous base course mixture pour into mold respectively, after vibration compression moulding be
Water surface layer and porous base course remove mold after maintenance.
Any of the above-described scheme is preferably, and is sintered 30 minutes in the step (1) in 1100-1200 DEG C.
Any of the above-described scheme is preferably, and base's haydite and surface layer haydite are by 40%~60% in the step (1)
Sludge, 20% gangue, 20~40% construction waste are made.
Any of the above-described scheme is preferably, the weight ratio of sludge, gangue, construction waste in base's haydite and surface layer haydite
Example is different.
Any of the above-described scheme is preferably, the weight ratio of sludge, gangue, construction waste in base's haydite and surface layer haydite
Example is identical.
Any of the above-described scheme is preferably, and base's haydite and surface layer haydite are by 40% sludge, 20% bastard coal
Stone, 40% construction waste be made.
Any of the above-described scheme is preferably, and base's haydite and surface layer haydite are by 50% sludge, 20% bastard coal
Stone, 30% construction waste be made.
Any of the above-described scheme is preferably, and base's haydite and surface layer haydite are by 60% sludge, 20% bastard coal
Stone, 20 construction waste be made.
Any of the above-described scheme is preferably, and base's haydite is different with the particle size of surface layer haydite in the step (1).
Any of the above-described scheme is preferably, and the particle size range of surface layer haydite is 0.25-2mm, base's pottery in the step (1)
Grain granularity is 2mm-5mm.
Any of the above-described scheme is preferably, and the granularity of surface layer haydite is 0.25mm, and base's haydite granularity is 2mm.
Any of the above-described scheme is preferably, and the granularity of surface layer haydite is 1mm, and base's haydite granularity is 3mm.
Any of the above-described scheme is preferably, and the granularity of surface layer haydite is 2mm, and base's haydite granularity is 5mm.
Any of the above-described scheme is preferably, and permeable surface layer mixture described in the step (2) uses following weight proportion
Raw material be made: 0.5-2 parts of surface layer haydite, 0.5-2 parts of cement, 0.2-0.6 parts of reinforcing agent, 0.1-0.5 parts of water.
Any of the above-described scheme is preferably, and porous base course mixture described in the step (2) uses following weight proportion
Raw material be made: haydite 0.5-2 parts of base, 0.5-2 parts of cement, 0.2-0.6 parts of reinforcing agent, 0.1-0.5 parts of water.
Any of the above-described scheme is preferably, and permeable surface layer is covered in porous base course surface in the step (3).
Any of the above-described scheme is preferably, and porous base course and permeable surface thickness ratio are 5-8:1 in the step (3).
Any of the above-described scheme is preferably, and porous base course and permeable surface thickness ratio are 5:1 in the step (3).
Any of the above-described scheme is preferably, and porous base course and permeable surface thickness ratio are 6:1 in the step (3).
Any of the above-described scheme is preferably, and porous base course and permeable surface thickness ratio are 7:1 in the step (3).
Any of the above-described scheme is preferably, and porous base course and permeable surface thickness ratio are 8:1 in the step (3).
The beneficial effects of the present invention are: the present invention provides the Ceramsite water permeable brick and its system that a kind of pair of pollutant has interception effect
Preparation Method has good permeable, permeability, and coefficient of permeability controlled range is big, and flexural strength and compression strength are high, can make rain
Water rapidly permeates into underground, supplements the soil water and underground water, keeps soil moisture, improves urban ground plant and edaphon
Life condition.It can reduce municipal drainage and pressure of flood, there is good effect to the pollution and processing sewage that prevent public waters
Fruit makes on road not ponding, and the flexural strength of water-permeable brick is 5.1-6.3MPa, compression strength 35.8-44.5MPa, permeable system
Number is greater than 0.001cm/s.The preparation that base's haydite and surface layer haydite are carried out using construction waste, is turned waste into wealth, is economized on resources, green
Colour circle is protected, and the Ceramsite water permeable brick of preparation being capable of COD, Pb intracorporal to water2+、Zn2+、Cu2+、Cd2+、Cr2+Equal pollutants are inhaled
Attached purified treatment, it is environmentally protective while purifying water body.Since this method preparation its ceramsite sintering temperature of Ceramsite water permeable brick is
1100-1200 DEG C therefore, municipal sludge cement can be used, in ceramsite sintering so as to effectively solve the processing of municipal sludge
Environmental problem in disposition reduces specific resistance to filtration cost.In the application the removal of pollutant mainly utilize haydite for
The suction-operated of pollutant, due to the effect of haydite absorption, wherein in sintering procedure, under the cementation of cement, by coal
There is porous structure inside the haydite that the haydite that spoil and construction waste are formed is formed, apparent gap is to have in water environment
Negative electrical charge, its biggish specific surface in addition, therefore the heavy metal ion in water and other pollutants can be adsorbed.
Specific embodiment
The invention will be further described below.
Embodiment 1
To achieve the goals above, the technical solution adopted by the present invention is that:
1. the preparation method that pair pollutant has the Ceramsite water permeable brick of interception effect comprising the steps of:
(1) prepared by surface layer haydite: by 50% sludge (moisture content 40%), 20% gangue, 30% building is mixed
Solidifying soil waste material composition.Construction waste (building concrete waste material) and gangue are crushed, milling (300 mesh), sludge press dry, and mixes
Stirring is closed, is stirred 10 minutes, revolving speed 30-100rpm, the rear (500kg/cm that pressurizes2) forming, 1100-1200 DEG C is sintered 30 minutes
After be cooled to room temperature, sieving obtain the surface layer haydite of 1mm.
(2) prepared by base's haydite: the sludge that the moisture content by 40% is 50%, 20% gangue, and 30% building is mixed
Solidifying soil waste material composition.Construction waste (building concrete waste material) is crushed, milling, sludge press dry, and pressurizes after being then mixed
Forming, is stirred 10 minutes, revolving speed 30-100rpm after mixing, and pressurize (500kg/cm2) forming, 1100-1200 DEG C of sintering
It is cooled to room temperature after 30 minutes, it is 3mm base haydite that sieving, which obtains granularity,.
(3) surface layer haydite (1 part), cement (1 part), reinforcing agent (0.4 part) and water (0.3 part) are mixed and made into face according to the ratio
Layer haydite mud, as permeable surface layer mixture.
(4) base's haydite (1 part), cement (1 part), reinforcing agent (0.4 part) and water (0.3 part) are mixed and made into base according to the ratio
Layer haydite mud, as porous base course mixture.Reinforcing agent is mixed using the raw material of following composition by weight in the present embodiment:
35 parts of aluminum sulfate, 2 parts of silica 1,11 parts of aluminium oxide, 6 parts of agstone, 10 parts of flyash, 7 parts of naphthalene sulfonate, cement are anti-
Seep 17 parts of waterproofing agent.Permeable surface layer infiltration coefficient is greater than 0.01cm/s.Porous base course infiltration coefficient is greater than permeable surface layer infiltration system
Number.
(5) it is packed into mold, surface layer haydite mud is packed into after being initially charged with base's haydite mud, vibrates compression moulding after 4-10s,
Porous base course and permeable surface thickness ratio are 6:1, be divided tos two days for water seasoning 2 times and to complete, remove mold after conserving 15 days.
2. leaching experiment
In order to monitor the release conditions of pollutant in water-permeable brick prepared by the present invention, using hac buffer as digestion agent,
Leaching experiment is carried out to prepared water-permeable brick, step and result are as follows:
(1) plus 5.7ml glacial acetic acid is into 500ml reagent water, adds 64.3ml 1mol/L sodium hydroxide, is diluted to 1L.It prepares
The pH value of solution should be 4.93 ± 0.05 afterwards.
(2) the water-permeable brick haydite of 2g is taken to be put into the above-mentioned leaching liquor of 40ml, leaching liquor revolving speed is the overturning of 30 ± 2r/min
Formula oscillation device vibrates 18h, carries out detection leaching liquor later, testing result is as shown in table 1.
1 water-permeable brick leaching experiment of table
| Project | Cu | Zn | Cd | Pb | Cr | Hg | Ni | As |
| Leaching concentration (mg/L) | 0.021 | 0.013 | 0.023 | 0.039 | 0.035 | It is not detected | 0.018 | It is not detected |
3. Leaching Experiments
In order to verify rejection effect of the water-permeable brick to pollutant in rainwater net flow of the application preparation, respectively with main in rainwater
Pollutant is wanted to carry out leaching, due to being Leaching Experiments, the pollution of part woods solution as time increases to the water-permeable brick of preparation
Object can make water-permeable brick absorption reach fractional saturation, come so that pollutant be made to leach out, the results are shown in Table 2, shows the application system
Standby water-permeable brick is preferable to the rejection effect of pollutant in rainwater net flow, and the time that pollutant absorption reaches saturation is longer.This Shen
Please in pollutant removal mainly utilize suction-operated of the haydite for pollutant, due to haydite absorption effect, wherein
In sintering procedure, under the cementation of cement, the haydite the inside formed by gangue with the haydite that construction waste is formed has
Porous structure, apparent gap are to have negative electrical charge in water environment, in addition its biggish specific surface, therefore can adsorb water
In heavy metal ion and other pollutants.
2 leaching results unit of table: mg/L
The present invention, which provides a kind of pair of pollutant, Ceramsite water permeable brick of interception effect and preparation method thereof, has good
Water, permeability, coefficient of permeability controlled range is big, and flexural strength and compression strength are high, and rainwater can be made to rapidly permeate into underground, supplements
The soil water and underground water keep soil moisture, improve the life condition of urban ground plant and edaphon.It can reduce city
Draining and pressure of flood have good effect to the pollution that prevents public waters and processing sewage, make on road not ponding, thoroughly
The flexural strength of water brick is 5.1-6.3MPa, and compression strength 35.8-44.5MPa, coefficient of permeability is greater than 0.001cm/s.Using
Construction waste carries out the preparation of base's haydite and surface layer haydite, turns waste into wealth, economizes on resources, environmentally protective, surface layer haydite and base
The granule size of layer haydite is different, and the Ceramsite water permeable brick of preparation being capable of COD, Pb intracorporal to water2+、Zn2+、Cu2+、Cd2+、 Cr2+
Equal pollutants carry out adsorption cleaning processing, reinforce purification adsorption effect, environmentally protective while purifying water body.Due to this method
Therefore for 1100-1200 DEG C, municipal sludge cement can be used in preparation its ceramsite sintering temperature of Ceramsite water permeable brick in ceramsite sintering,
The environmental problem in processing disposition so as to effectively solve municipal sludge, reduces specific resistance to filtration cost.In the application
The removal of pollutant mainly utilizes suction-operated of the haydite for pollutant, due to the effect of haydite absorption, wherein firing
In the process, under the cementation of cement, the haydite the inside formed by gangue with the haydite that construction waste is formed is with porous
Structure, apparent gap are to have negative electrical charge in water environment, in addition its biggish specific surface, therefore can be adsorbed in water
Heavy metal ion and other pollutants.
Embodiment 2
1. pair pollutant has the preparation method of the Ceramsite water permeable brick of interception effect and embodiment 1 similar, unlike, packet
Include following steps:
(1) prepared by surface layer haydite: by 40% sludge (moisture content 50%), 30% gangue, 30% building is useless
Brick composition.Useless brick will be built and gangue crushes, is milled (300 mesh), sludge press dry, press molding after mixing, and 1200 DEG C
Sintering is cooled to room temperature after 30 minutes, and sieving obtains the surface layer haydite of granularity 2mm.
(2) prepared by base's haydite: by 50% sludge (moisture content 40%), 20% gangue, 30% building is mixed
Solidifying soil waste material composition.Construction waste is crushed, milling, sludge press dry, and press molding after being then mixed adds after mixing
Pressing formation, 1200 DEG C sintering 30 minutes after be cooled to room temperature, sieving obtain diameter be granularity 5mm base's haydite.
(3) surface layer haydite (2 parts), cement (2 parts), reinforcing agent (0.6 part) and water (0.5 part) are mixed and made into face according to the ratio
Layer haydite mud.
(4) base's haydite (2 parts), cement (2 parts), reinforcing agent (0.6 part) and water (0.5 part) are mixed and made into base according to the ratio
Layer haydite mud.Reinforcing agent is mixed using the raw material of following composition by weight in the present embodiment, 40 parts of aluminum sulfate, silica
18 parts, 12 parts of aluminium oxide, 8 parts of agstone, 15 parts of flyash, 10 parts of naphthalene sulfonate, 20 parts of cement impervious waterproofing agent.
(5) it is packed into mold, vibrates compression moulding after 4-10s, maintenance removed mold after 15 days.
2. leaching experiment
It is extraction with hac buffer to monitor the release of pollutant in water-permeable brick according to claim 1
Agent carries out leaching experiment to prepared water-permeable brick, and step and result are as follows:
(1) plus 5.7ml glacial acetic acid is into 500ml reagent water, adds 64.3ml 1mol/L sodium hydroxide, is diluted to 1L.It prepares
The pH value of solution should be 4.93 ± 0.05 afterwards.
(2) the water-permeable brick haydite of 2g is taken to be put into 40ml leaching liquor, leaching liquor revolving speed is the convertible oscillation of 30 ± 2r/min
Device detects after vibrating 18h, and the results are shown in Table 3.
3 water-permeable brick leaching experiment of table
| Project | Cu | Zn | Cd | Pb | Cr | Hg | Ni | As |
| Leaching concentration (mg/L) | 0.002 | 0.023 | 0.012 | 0.031 | 0.042 | It is not detected | 0.071 | 0.002 |
3. Leaching Experiments
In order to verify rejection effect of the water-permeable brick to pollutant in rainwater net flow of the application preparation, respectively with main in rainwater
It wants pollutant to carry out leaching to the water-permeable brick of preparation, detects later, testing result is as shown in table 4, shows water-permeable brick to pollutant
Interception capacity is stronger.
4 leaching results unit of table: mg/L
Embodiment 3
Unlike embodiment 1, reinforcing agent is mixed using the raw material of following composition by weight in the present embodiment, sulfuric acid
It is 30 parts of aluminium, 20 parts of silica, 18 parts of aluminium oxide, 7 parts of agstone, 12 parts of flyash, 13 parts of naphthalene sulfonate, cement impervious
15 parts of waterproofing agent.
Embodiment 4
Unlike embodiment 1, reinforcing agent is mixed using the raw material of following composition by weight in the present embodiment,
40 parts of aluminum sulfate, 8 parts of silica 1,17 parts of aluminium oxide, 9 parts of agstone, 11 parts of flyash, naphthalene sulfonate 10
Part, 20 parts of cement impervious waterproofing agent.
Embodiment 5
Unlike embodiment 1, reinforcing agent is mixed using the raw material of following composition by weight in the present embodiment,
38 parts of aluminum sulfate, 22 parts of silica, 17 parts of aluminium oxide, 9 parts of agstone, 9 parts of flyash, naphthalene sulfonate 10
Part, 16 parts of cement impervious waterproofing agent.
Embodiment 6
Unlike embodiment 1, reinforcing agent is mixed using the raw material of following composition by weight in the present embodiment, sulfuric acid
It is 50 parts of aluminium, 20 parts of silica, 15 parts of aluminium oxide, 8 parts of agstone, 12 parts of flyash, 10 parts of naphthalene sulfonate, cement impervious
18 parts of waterproofing agent.
Embodiment 7
Unlike embodiment 1, base's haydite and surface layer haydite are by 60% sludge, 20% coal in the present embodiment
Spoil, 20% construction waste be made.
Embodiment 8
Unlike embodiment 1, base's haydite is by 60% sludge, 20% gangue, 20% in the present embodiment
Construction waste is made.Surface layer haydite by 50% sludge, 20% gangue, 30% construction waste be made
Embodiment 9
Unlike embodiment 1, porous base course and permeable surface thickness ratio are 5:1.
Embodiment 10
Unlike embodiment 1, porous base course and permeable surface thickness ratio are 8:1.
Embodiment 11
Unlike embodiment 1, the porous base course is made using the raw material of following weight proportion: base's haydite
0.5 part, 0.5 part of cement, 0.2 part of reinforcing agent, 0.1 part of water.The permeable surface layer using following weight proportion raw material production and
At: 0.5 part of surface layer haydite, 0.5 part of cement, 0.2 part of reinforcing agent, 0.1 part of water.
Embodiment 12
Unlike embodiment 1, base's haydite and surface layer haydite are by 40%~60% sludge, 20% bastard coal
Stone, 20~40% construction waste be made, and in base's haydite and surface layer haydite sludge, gangue, construction waste weight
Amount ratio is different.
Embodiment 13
Unlike embodiment 1, the granularity of surface layer haydite is 0.25mm, and base's haydite granularity is 2mm.
Embodiment 14
Unlike embodiment 1, the granularity of surface layer haydite is 1mm, and base's haydite granularity is 3mm.
Embodiment 15
Unlike embodiment 1, the granularity of surface layer haydite is 2mm, and base's haydite granularity is 5mm.
Claims (10)
1. the Ceramsite water permeable brick that a kind of pair of pollutant has interception effect, which is characterized in that including porous base course and permeable surface layer, institute
Porous base course is stated integrally to be pressed into the permeable surface layer.
2. the Ceramsite water permeable brick that a kind of pair of pollutant according to claim 1 has interception effect, which is characterized in that permeable base
Layer is 5-8:1 with permeable surface thickness ratio.
3. the Ceramsite water permeable brick that a kind of pair of pollutant according to claim 1 or 2 has interception effect, which is characterized in that thoroughly
Water-base is made using base's haydite, and permeable surface layer is made using surface layer haydite.
4. the Ceramsite water permeable brick that a kind of pair of pollutant according to claim 3 has interception effect, which is characterized in that the base
Layer haydite and surface layer haydite by 40% ~ 60% sludge, 20% gangue, 20 ~ 40% construction waste be made.
5. the Ceramsite water permeable brick that a kind of pair of pollutant according to claim 3 has interception effect, which is characterized in that described
Water-base is made using the raw material of following weight proportion: haydite 0.5-2 parts of base, and 0.5-2 parts of cement, reinforcing agent 0.2-
0.6 part, 0.1-0.5 parts of water.
6. the Ceramsite water permeable brick that a kind of pair of pollutant according to claim 3 has interception effect, which is characterized in that described
Water surface layer is made using the raw material of following weight proportion: 0.5-2 parts of surface layer haydite, 0.5-2 parts of cement, and reinforcing agent 0.2-
0.6 part, 0.1-0.5 parts of water.
7. a kind of pair of pollutant according to claim 3 has the Ceramsite water permeable brick of interception effect, which is characterized in that permeable base
Layer infiltration coefficient is greater than permeable surface layer infiltration coefficient.
8. the preparation method that a kind of pair of pollutant has the Ceramsite water permeable brick of interception effect, which is characterized in that comprise the steps of:
Step (1): the preparation of base's haydite and surface layer haydite: construction waste being crushed, milling, and sludge press dry, then with bastard coal
Press molding after stone is mixed, is cooled to room temperature after sintering, is sieved, haydite base haydite and surface layer haydite can be obtained；
Step (2): by surface layer haydite and reinforcing agent, cement mixing, being added water mixing, stir evenly, and obtains permeable surface layer mixing
Object；By base's haydite and reinforcing agent, cement mixing, water mixing is added, stirs evenly to get porous base course mixture is arrived,
Step (3): permeable surface layer mixture and porous base course mixture pour into mold respectively, and compression moulding is permeable face after vibration
Layer and porous base course, remove mold after maintenance.
9. a kind of pair of pollutant according to claim 8 has the preparation method of the Ceramsite water permeable brick of interception effect, feature
It is, base's haydite and surface layer haydite are built by 40% ~ 60% sludge, 20% gangue, 20 ~ 40% in the step (1)
Waste-material-preparing is built to form.
10. a kind of pair of pollutant according to claim 8 has the preparation method of the Ceramsite water permeable brick of interception effect, feature
It is, permeable surface layer mixture described in the step (2) is made using the raw material of following weight proportion: surface layer haydite
0.5-2 parts, 0.5-2 parts of cement, 0.2-0.6 parts of reinforcing agent, 0.1-0.5 parts of water.
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