CN106747094A - It is a kind of to activate the water-permeable brick that red mud collaboration boiler slag activated carbon plays purifying rainwater effect - Google Patents

Abstract

The water-permeable brick that red mud collaboration boiler slag activated carbon plays purifying rainwater effect is activated the invention discloses a kind of, is made from the following raw materials in parts by weight：Granite leftover bits 40 43,30 32,42.5 grades of Portland cements 20 22 of discarded concrete, polyester-cotton fabric leftover pieces 2 2.5, poly-epoxychloropropane dimethylamine 0.1 0.12, Early-strength polycarboxylate superplasticizer 0.3 0.4, appropriate amount of water, red mud powder 67, boiler slag 34, concentration are citric acid solution 12 14, the wood activated charcoal 34, appropriate deionized water of 5wt%.Water-permeable brick that the present invention is made is solid, wear-resisting, compression strength is high, and aperture is fine and closely woven, and water penetration is good, booty that simultaneously can be in adsorption filtration rainwater, effect of purifying rainwater is played, the heavy metal of water body, toxic organic compound and colloid can be caught, in case underground water pollution.

Description

It is a kind of to activate the water-permeable brick that red mud collaboration boiler slag activated carbon plays purifying rainwater effect

Technical field

Purification is played the present invention relates to water-permeable brick technical field, more particularly to a kind of activation red mud collaboration boiler slag activated carbon The water-permeable brick of rainwater effect.

Background technology

In recent years, whenever rainy season, each big city " seeing sea " phenomenon takes place frequently.Water penetration ground is due to alleviation municipal drainage System flood discharge pressure, recharge of groundwater resource, improve urban surface plant and edaphon life condition, make underground moisture It is easy to the advantages of evaporating and eliminate urban heat land effect and is paid close attention to by more and more researchers.Water-permeable pavement is helped In air and moisture circulation, eliminate tropical island effect, sqouynd absorption lowering noise.Water-permeable pavement brick is the main composition on urban water-through road surface Composition, mainly there is 3 kinds of cement base pervious concrete brick, macromolecule pervious concrete brick and sintering brick permeable to water.Wherein, cement base Pervious concrete brick manufacture craft is simple, and with low cost and stable performance is suitable for large-scale promotion application, general to have well Water penetration, water-retaining property, it is while intensity requirement is met, in addition it is also necessary to keep certain insertion hole meet water penetration will The brick asked.Therefore when preparing in addition to selecting suitable raw material, will also be by mix-design, preparation technology, additive To meet the requirement of intensity and porosity.

《The research of water-permeable brick is made using discarded concrete optimization》Natural aggregate is substituted using discarded concrete in one text, Using positive quadraturing design test method, analysis aggregate size, gelatine are than, the ratio of mud and water reducer, silica flour and discarded concrete Influence of the different addition quantity to water-permeable brick intensity and coefficient of permeability, obtains optimum mix proportion, in the reinforcing and maintenance of regeneration aggregate The water-permeable brick being made under the improvement of mode, intensity increases, and meets laying and requires, realizes twice laid, energy-saving and emission-reduction, but Be because intensity improves limited, due also to the mobility feature of concrete, easily occur when brick body be molded it is heavy starch phenomenon, oozing Aquaporin blocks influence water penetration, and cement layer because of stream slurry, and the cement layer at node will be thinning, is unfavorable for the hair of brick strength Exhibition.To reach more surcharges while must being thus modified to it, then meet strength demand, can be to water Mud water-permeable brick carries out more preferable popularization and application.

The content of the invention

The object of the invention is exactly to make up the defect of prior art, there is provided one kind activation red mud collaboration boiler slag activated carbon Play the water-permeable brick of purifying rainwater effect.

The present invention is achieved by the following technical solutions：

It is a kind of to activate the water-permeable brick that red mud collaboration boiler slag activated carbon plays purifying rainwater effect, by the raw material system of following weight portion Into：Granite leftover bits 40-43, discarded concrete 30-32,42.5 grades of Portland cement 20-22, polyester-cotton fabric corners Material 2-2.5, poly-epoxychloropropane dimethylamine 0.1-0.12, Early-strength polycarboxylate superplasticizer 0.3-0.4, appropriate amount of water, red mud powder 6-7, boiler slag 3-4, concentration are citric acid solution 12-14, wood activated charcoal 3-4, the appropriate deionized water of 5wt%.

A kind of activation red mud collaboration boiler slag activated carbon plays the water-permeable brick of purifying rainwater effect, by walking in detail below Suddenly it is made：

（1）Granite leftover bits are put into crusher in crushing into the little particle of 7-10mm, discarded concrete is put into disintegrating machine In be broken into the particle of 5-10mm, then two kinds of particles is mixed, obtain mixing coarse aggregate；

（2）Polyester-cotton fabric leftover pieces are sheared and pine is torn, the fabric pieces for forming 3mm × 3mm are stand-by；By Hydrin two Methylamine is dissolved in 100 times of water of amount, and stirring adds above-mentioned fabrics fragment to after being completely dissolved, and is stirred with 400-500 revs/min of speed 30-40 minutes is stood after mixing 4-5 minutes, the fabric pieces after impregnation process are put in an oven with 100-110 DEG C of drying in filtering 100-120 minutes, taken out after cooling；

（3）Boiler slag is put into baking oven with 70-80 DEG C of drying, is then crushed, cross 80 mesh sieves stand-by；By red mud powder and concentration For the citric acid solution of 5wt% mixes, stirring mixing is boiled 5-7 minutes after 15-20 minutes, filters, filter cake is washed with deionized water Wash 2-3 times, dry, ground 80 mesh sieve；Two kinds of powder are mixed, then ball milling 30-40 minutes common with wood activated charcoal；

（4）By step（1）, step（2）The product for obtaining stirs under anhydrous conditions, adds appropriate water so that mixing Thing surface is no longer entirely wetted, and is subsequently adding step（3）Product, 42.5 grades of Portland cements and remaining residue for obtaining into Point, suitable quantity of water is continuously added after stirring, it is 0.3 to control the ratio of mud, continues stirring and enables within 10-15 minutes cement mortar fully Every aggregate of parcel, finally pours into mould mixture, is gently plugged and pounded with the smooth wooden stick in one end, in 4MPa after flattened faces Pressure under compressing, static pressure 90 seconds, brick body is put into concrete standard and supported by freeze-day with constant temperature 48 hours at 25 DEG C after the demoulding Conserved on request in protecting box 28 days.

It is an advantage of the invention that：After the present invention is broken into certain particle diameter using granite leftover bits and discarded concrete Mixed and disorderly is distributed in concrete, the skeleton structure of water-permeable brick is constituted due to its random distribution of orientations, by suitably matching somebody with somebody Than so that the brick body being made has good intensity and rational porosity, and uses discarded object, both reduces raw material Cost, it is also environmentally friendly；Coordinate the addition of the modified fabric pieces of poly-epoxychloropropane dimethylamine, good hydrophilic property, with cement Cohesive enhancing, improve the compression strength of brick body, and uniformly can be filled in the gap of aggregate, water-permeable brick into During type, modified fabric pieces reduce the mobility of concrete, it is to avoid the company between its obstruction aggregate that flows downward Through hole gap, prevents aggregate sedimentation, it is ensured that the water permeability of water-permeable brick；Appropriate fabric pieces adjustable concrete is secreted simultaneously It is aqueous, can reduce because concrete water bleeding can stop that crack end moves forward in particles of aggregates microcrack formed below, during compression, from And improve the intensity of water-permeable brick；When water-permeable brick is pressurized and shrinks, it shrinks energy and is absorbed by fabric pieces, effectively increases The toughness of water brick, it is suppressed that the generation and development of crackle；The addition of fabric pieces, part concrete is adsorbed by fabric, aggregate it Between cementing layer it is thinning, hole increase, increase coefficient of permeability, and due to the hydrophilicity of fabric pieces, enhance The water retention coefficient of brick body.

The present invention activates red mud powder by citric acid solution, can first dissolve the fine particle in red mud, makes hole Increase, increase, coordinate boiler slag, activated carbon, synergy enhances the adsorption effect of brick body, while improve the strong of brick body Degree；Water-permeable brick that the present invention is made is solid, wear-resisting, compression strength is high, and aperture is fine and closely woven, and water penetration is good, while being capable of adsorption filtration Booty in rainwater, plays effect of purifying rainwater, and the heavy metal of water body, toxic organic compound and colloid can be caught, with Anti- underground water pollution.

Specific embodiment

It is a kind of to activate the water-permeable brick that red mud collaboration boiler slag activated carbon plays purifying rainwater effect, by following weight portion（It is public Jin）Raw material be made：Granite leftover bits 40, discarded concrete 30,42.5 grades of Portland cements 20, polyester-cotton fabric sides It is corner material 2, poly-epoxychloropropane dimethylamine 0.1, Early-strength polycarboxylate superplasticizer 0.3, appropriate amount of water, red mud powder 6, boiler slag 3, dense Spend citric acid solution 12, the wood activated charcoal 3, appropriate deionized water for 5wt%.

A kind of activation red mud collaboration boiler slag activated carbon plays the water-permeable brick of purifying rainwater effect, by walking in detail below Suddenly it is made：

（1）Granite leftover bits are put into crusher in crushing into the little particle of 7mm, discarded concrete are put into disintegrating machine and are broken The particle of 5mm is broken into, then mixes two kinds of particles, obtain mixing coarse aggregate；

（2）Polyester-cotton fabric leftover pieces are sheared and pine is torn, the fabric pieces for forming 3mm × 3mm are stand-by；By Hydrin two Methylamine is dissolved in 100 times of water of amount, and stirring adds above-mentioned fabrics fragment to after being completely dissolved, and 4 are stirred with 400 revs/min of speed 30 minutes are stood after minute, the fabric pieces after impregnation process are put in an oven with 100 DEG C of dryings 100 minutes, cooling in filtering After take out；

（3）Boiler slag is put into baking oven with 70 DEG C of dryings, is then crushed, cross 80 mesh sieves stand-by；It is by red mud powder and concentration The citric acid solution mixing of 5wt%, stirring mixing is boiled 5 minutes after 15 minutes, filters, filter cake is washed with deionized 2 times, Drying, ground 80 mesh sieve；Two kinds of powder are mixed, then with the common ball milling of wood activated charcoal 30 minutes；

（4）By step（1）, step（2）The product for obtaining stirs under anhydrous conditions, adds appropriate water so that mixing Thing surface is no longer entirely wetted, and is subsequently adding step（3）Product, 42.5 grades of Portland cements and remaining residue for obtaining into Point, suitable quantity of water is continuously added after stirring, it is 0.3 to control the ratio of mud, continues stirring and enables that cement mortar is fully wrapped in 10 minutes Every aggregate is wrapped up in, finally mixture is poured into mould, is gently plugged and pounded with the smooth wooden stick in one end, 4MPa's after flattened faces It is compressing under pressure, static pressure 90 seconds, brick body is put into concrete standard maintenance by freeze-day with constant temperature 48 hours at 25 DEG C after the demoulding Conserved on request in case 28 days.

The pervious floor tile being made to the embodiment of the present invention carries out properties test, and coefficient of permeability is 0.235-0.267mm/ S, compression strength is 29.2-36.96MPa, and 25 times Frozen-thawed cycled compression strength loss are less than 20%, meet professional standard.

Claims (2)

1. it is a kind of to activate the water-permeable brick that red mud collaboration boiler slag activated carbon plays purifying rainwater effect, it is characterised in that by following The raw material of weight portion is made：Granite leftover bits 40-43, discarded concrete 30-32,42.5 grades of Portland cement 20- 22nd, polyester-cotton fabric leftover pieces 2-2.5, poly-epoxychloropropane dimethylamine 0.1-0.12, Early-strength polycarboxylate superplasticizer 0.3-0.4, Appropriate amount of water, red mud powder 6-7, boiler slag 3-4, concentration are citric acid solution 12-14, wood activated charcoal 3-4, the deionization of 5wt% Appropriate amount of water.

It is 2. a kind of according to claim 1 to activate the water-permeable brick that red mud collaboration boiler slag activated carbon plays purifying rainwater effect, Characterized in that, being made up of step in detail below：

（1）Granite leftover bits are put into crusher in crushing into the little particle of 7-10mm, discarded concrete is put into disintegrating machine In be broken into the particle of 5-10mm, then two kinds of particles is mixed, obtain mixing coarse aggregate；

（2）Polyester-cotton fabric leftover pieces are sheared and pine is torn, the fabric pieces for forming 3mm × 3mm are stand-by；By Hydrin two Methylamine is dissolved in 100 times of water of amount, and stirring adds above-mentioned fabrics fragment to after being completely dissolved, and is stirred with 400-500 revs/min of speed 30-40 minutes is stood after mixing 4-5 minutes, the fabric pieces after impregnation process are put in an oven with 100-110 DEG C of drying in filtering 100-120 minutes, taken out after cooling；

（3）Boiler slag is put into baking oven with 70-80 DEG C of drying, is then crushed, cross 80 mesh sieves stand-by；By red mud powder and concentration For the citric acid solution of 5wt% mixes, stirring mixing is boiled 5-7 minutes after 15-20 minutes, filters, filter cake is washed with deionized water Wash 2-3 times, dry, ground 80 mesh sieve；Two kinds of powder are mixed, then ball milling 30-40 minutes common with wood activated charcoal；

（4）By step（1）, step（2）The product for obtaining stirs under anhydrous conditions, adds appropriate water so that mixing Thing surface is no longer entirely wetted, and is subsequently adding step（3）Product, 42.5 grades of Portland cements and remaining residue for obtaining into Point, suitable quantity of water is continuously added after stirring, it is 0.3 to control the ratio of mud, continues stirring and enables within 10-15 minutes cement mortar fully Every aggregate of parcel, finally pours into mould mixture, is gently plugged and pounded with the smooth wooden stick in one end, in 4MPa after flattened faces Pressure under compressing, static pressure 90 seconds, brick body is put into concrete standard and supported by freeze-day with constant temperature 48 hours at 25 DEG C after the demoulding Conserved on request in protecting box 28 days.