CN108715537A - A kind of porous building-brick and preparation method thereof - Google Patents
A kind of porous building-brick and preparation method thereof Download PDFInfo
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- CN108715537A CN108715537A CN201810809185.9A CN201810809185A CN108715537A CN 108715537 A CN108715537 A CN 108715537A CN 201810809185 A CN201810809185 A CN 201810809185A CN 108715537 A CN108715537 A CN 108715537A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/141—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing dihydrated gypsum before the final hardening step, e.g. forming a dihydrated gypsum product followed by a de- and rehydration step
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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Abstract
The present invention relates to a kind of porous building-bricks and preparation method thereof, belong to building materials field.The raw material of the porous building-brick includes the humic acid of the puffing slag of 40~45 parts by weight, the flyash of 28~35 parts by weight, the stone of 15~20 parts by weight, the river sand of 15~20 parts by weight, the cement of 8~13 parts by weight, the dihydrate gypsum of 3~8 parts by weight, the glass bead of 2~3 parts by weight and 1~2 parts by weight.Puffing cinder ladle includes at least one of puffing bean dregs, puffing bagasse, popcorn slag and puffing tea grounds.The porous building-brick is at low cost, and comprehensive performance is preferable.Preparation method includes：Mixture puffing slag, flyash, stone, river sand, cement, dihydrate gypsum, glass bead and humic acid according to the ratio, then plus water mixes, and obtains slurry；By slurry extrusion molding, porous building-brick semi-finished product are obtained, are conserved.The method is simple, can effectively improve the performance of porous building-brick.
Description
Technical field
The present invention relates to building materials fields, and more particularly to a kind of porous building-brick and preparation method thereof.
Background technology
Porous building-brick is to add water stirring, molding and maintenance using cement as cementing material with warps such as sand, stones (light-weight aggregate) and make
At a kind of concrete product with multiple rows of aperture.It is low with energy consumption, section soil profit is useless, easy for construction and body is light, strong
The features such as degree is high, heat insulation effect is good, durable, contraction distortion is small, appearance is regular is a kind of ideal material substituting sintered clay brick
Material.
But there are the following problems for current porous building-brick：To obtain the high porous building-brick of performance, to the more demanding of raw material
And cost is higher.
Invention content
The purpose of the present invention is to provide a kind of porous building-bricks, and the porous building-brick is at low cost, and comprehensive performance is preferable.
The second object of the present invention is to provide a kind of preparation method of above-mentioned porous building-brick, and the method is simple, Neng Gouyou
Effect improves the performance of porous building-brick.
The present invention solves its technical problem using following technical scheme to realize：
A kind of porous building-brick, in parts by weight, raw material includes：Puffing slag, 28~35 weights of 40~45 parts by weight
Measure the flyash of part, the stone of 15~20 parts by weight, the river sand of 15~20 parts by weight, the cement of 8~13 parts by weight, 3~8 weight
The dihydrate gypsum, the glass bead of 2~3 parts by weight and the humic acid of 1~2 parts by weight of part；
Puffing cinder ladle includes at least one of puffing bean dregs, puffing bagasse, popcorn slag and puffing tea grounds；
Hole ratio >=30% of porous building-brick.
A kind of preparation method of above-mentioned porous building-brick comprising following steps：
First puffing slag, flyash, stone, river sand, cement, dihydrate gypsum, glass bead and humic acid are mixed according to the ratio,
Mixing is added water, slurry is obtained；
Slurry is expressed into die for molding, obtains porous building-brick semi-finished product；
Porous building-brick semi-finished product are conserved.
The advantageous effect for the porous building-brick and preparation method thereof that present pre-ferred embodiments provide includes：
Above-mentioned various substances by being used as the raw material of porous building-brick by porous building-brick provided in an embodiment of the present invention, on the one hand
The utilization rate of various raw materials can be improved, and play the role of certain waste utilization, reduce the production cost of porous building-brick；It is another
Aspect can reduce material shrinking percentage, the resistance to compression of enhancing product, anti-folding and tensile strength.Preparation method is simple, is conducive to prepare
The porous building-brick of good mechanical properties.
Specific implementation mode
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, builds according to normal condition or manufacturer
The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase
Product.
Porous building-brick of the embodiment of the present invention and preparation method thereof is specifically described below.
An embodiment of the present invention provides a kind of porous building-bricks, and in parts by weight, raw material includes：40~45 parts by weight
Puffing slag, the flyash of 28~35 parts by weight, the stone of 15~20 parts by weight, the river sand of 15~20 parts by weight, 8~13 weight
The cement of part, the humic acid of the dihydrate gypsum of 3~8 parts by weight, the glass bead of 2~3 parts by weight and 1~2 parts by weight；
Puffing cinder ladle includes at least one of puffing bean dregs, puffing bagasse, popcorn slag and puffing tea grounds；
Hole ratio >=30% of porous building-brick.
Further, in parts by weight, raw material includes：The puffing slags of 42~44 parts by weight, 30~33 parts by weight
Flyash, the stone of 17~20 parts by weight, the river sand of 15~18 parts by weight, the cement of 10~13 parts by weight, 3~5 parts by weight
The humic acid of dihydrate gypsum, the glass bead of 2~3 parts by weight and 1~2 parts by weight.
Further, in parts by weight, raw material includes：The puffing slag of 43 parts by weight, the flyash of 32 parts by weight, 19
The stone of parts by weight, the river sand of 17 parts by weight, the cement of 12 parts by weight, the dihydrate gypsum of 4 parts by weight, the vitreous of 2 parts by weight are micro-
The humic acid of pearl and 1.5 parts by weight.
Wherein, puffing slag for example may include in puffing bean dregs, puffing bagasse, popcorn slag and puffing tea grounds extremely
Few one kind.Above-mentioned various puffing slags are re-used to prepare porous building-brick as waste, its utilization rate can be improved, reach
To the effect of waste utilization, while it can accordingly reduce the production cost of porous building-brick.It is worth noting that in above-mentioned puffing slag
Puffing bagasse and puffing tea grounds in contain more wood fibre, as one of the raw material of porous building-brick, also
The compression strength of porous building-brick can be improved.
Optionally, chemical composition includes 1~1.2 weight in the flyash of every 100 parts by weight in the embodiment of the present invention
The SO of part3, 50~55 parts by weight SiO2, 1.5~2 parts by weight Fe2O3, 25~30 parts by weight Al2O3, 1.5~2 parts by weight
CaO and 5~5.5 parts by weight MgO.Flyash containing above-mentioned chemical composition can reduce cementitious material compared with the prior art and use
Amount controls alkali, reduces the heat of hydration, reduces bleeding and segregation phenomenon, the resistance to compression of enhancing product, anti-folding and tensile strength.
As optional, the stone in the embodiment of the present invention include the big stone that grain size is 8~10mm and grain size be 3~
The handstone of 8mm.The weight ratio of big stone and handstone such as can be 1：2~3.The is respectively included in big stone and handstone
The weight ratio of one gangue and the second gangue, the first gangue and the second gangue is 1：1.5~2.The stone of above-mentioned grain size
Better activation can be played with cement.
Gangue is the solid waste generated in coal mining, washing process, and discharge capacity is equivalent to coal production
10%~20%, it is one of maximum solid waste of the current discharge capacity in China.Using gangue as base in the embodiment of the present invention
One of material alleviates pollution and destruction of the gangue to environment, it can be achieved that recycling of the gangue in construction material.
Dihydrate gypsum is mainly used for improving condensation and the setting rate of porous building-brick in embodiments of the present invention, and improves more
Intensity and wearability after the building block hardening of hole.Specifically, the calcium sulfate in dihydrate gypsum can excite the activity of flyash, promote
Pulverized burned coal ash hydration.Preferably, the water absorption rate of above-mentioned dihydrate gypsum is 30~35%, so that moisture extra in preparation process is dry
Capillary stomata is left after dry, makes porous building-brick that there is certain water imbibition.
The ageing-resistant weatherability of glass bead is strong, has excellent thermal insulation, fire prevention and sound absorption qualities, will in the embodiment of the present invention
On the one hand it substitutes traditional normal expanded perlite and granular polystyrene as aglite, overcome expanded perlite water suction
Property big, easy dusting, cubical contraction is big in slurry stirring, phenomena such as easily causing low product later strength and hollowing cracking, together
When compensate for again granular polystyrene organic material is inflammable, fire protecting performance is poor, high temperature generate pernicious gas and ageing-resistant weatherability it is low, apply
The defects of least big in work, improves the perfect comprehensive performance and workability of thermal insulation mortar；On the other hand mortar can be improved
And easy mobility and from anti-intensity, reduce material shrinking percentage, improve product comprehensive performance, reduce comprehensive production cost.
As optional, the granularity of the glass bead in the embodiment of the present invention can be 0.5~1.5mm, and apparent density can
Think 300~350kg/m3, floatability can be that the Volume Loss rate of 90~95%, 1MPa pressure can be 30~35%.Tool
Have above-mentioned property glass bead and the embodiment of the present invention in the various raw material fitness highers that provide, the porous building-brick of gained
Physical property, especially mechanical property are best.
The basic structure of humic acid macromolecular is aromatic ring and alicyclic ring, and carboxyl, hydroxyl, carbonyl, quinonyl and methoxy are connected on ring
Ji Deng functional groups.The embodiment of the present invention is mainly used for playing the role of plasticising and diminishing as one of raw material.
It holds, by the way that above-mentioned various substances to be used as to the raw material of porous building-brick in the embodiment of the present invention, on the one hand can be improved
The utilization rate of various raw materials, and play the role of certain waste utilization, reduce the production cost of porous building-brick；It on the other hand can
Reduce material shrinking percentage, the resistance to compression of enhancing product, anti-folding and tensile strength.
In addition, the embodiment of the present invention additionally provides a kind of preparation method of above-mentioned porous building-brick, ground can refer to, it may include with
Lower step：
First puffing slag, flyash, stone, river sand, cement, dihydrate gypsum, glass bead and humic acid are mixed according to the ratio,
Mixing is added water, slurry is obtained；
Slurry is expressed into die for molding, obtains porous building-brick semi-finished product；
Porous building-brick semi-finished product are conserved.
Preferably, puffing slag, flyash, stone, river sand, cement, dihydrate gypsum, glass bead and humic acid are prior to turning
Speed is dry-mixed under conditions of being 4000~5000r/min, then adds water wet under conditions of rotating speed is 2000~2500r/min
It is mixed.
It is above-mentioned using first dry-mixed and then again by the way of wet mixing, each raw material mixing can be made more uniform.In dry mixing process, accompany by
High-speed stirred can further improve the mixability between each raw material, further, it is possible under the action of high shear, make each
It can have between ingredient and be mixed with other raw materials in the case where staggeredly mixing, such as the hole of dihydrate gypsum, to be more favorable for
Reaction between raw material improves the combination degree between raw material.
Further, it is molded in the embodiment of the present invention and does not use extrusion forming, but extrusion molding.Ground is can refer to, it will be through
It crosses in semi-drying concrete input hydraulic pressure molding machine made of action of forced stirring, kneading, the helical axis that molding machine is rotating quickly is transported
High squeeze turned uniformly promotes concrete under force effect in mold, and hydraulic pressure is compacted, forms billet；Vibrator is by billet into one
Vibratory compaction is walked, the motive force that billet generates pushes molding machine to move forward, green body is extruded by die orifice.
Specifically, effect of the slurry of input hydraulic pressure molding machine prior to the rotation helical axis that rotating speed is 300~400r/min
Lower to promote slurry in mold, hydraulic pressure is compacted, obtains billet, then by base under conditions of vibration frequency is 20~30 times/min
Vibratory compaction, extrusion molding.
The porous building-brick semi-finished product obtained through the method, moisture content is low, and shrinking percentage is small, and green body compactness is high, and raw material
In the hole that is mutually lapped can be filled by cement and fine aggregate, enhance be combineding with each other between hydrated product, improve molding blank
Compactness.
Optionally, maintenance may include conserving for the first time in the embodiment of the present invention and second conserves, first time maintenance processes
In in porous building-brick surface of semi-finished spray water, watering amount is 300~400mL/m2, after conserving 30~32h for the first time, then carry out
Second of maintenance.It sprinkles water in first time maintenance processes, so that porous building-brick semi-finished product keep certain moist degree, avoids
The crisp damage of its shrivelled Soviet Union.Water rate control is spilt in 400~500mL/m2, excess moisture is can avoid, keeps finished product moisture content excessive, mechanical property
It can be relatively low.
The feature and performance of the present invention are described in further detail with reference to embodiments.
Embodiment 1
With the puffing bean dregs of 45 parts by weight, the flyash of 28 parts by weight, the stone of 20 parts by weight, 15 parts by weight river sand,
The corruption of the cement of 13 parts by weight, the dihydrate gypsum of 3 parts by weight, the glass bead that 3 parts by weight water absorption rates are 30% and 1 parts by weight
Acid is grown collectively as raw material.
Wherein, chemical composition contains the SO of 1 parts by weight in the flyash of every 100 parts by weight3, 50 parts by weight SiO2、1.5
The Fe of parts by weight2O3, 25 parts by weight Al2O3, the CaO of 1.5 parts by weight and the MgO of 5 parts by weight.
Stone contains the handstone that the big stone that grain size is 8mm and grain size are 3mm.The weight of big stone and handstone is
1：2.The first gangue and the second gangue, the weight of the first gangue and the second gangue are respectively included in big stone and handstone
Amount is than being 1：1.5.
The granularity of glass bead is 0.5mm, apparent density 300kg/m3, floatability 90%, the volume of 1MPa pressure
Loss late is 30%.
Above-mentioned puffing bean dregs, flyash, stone, river sand, cement, dihydrate gypsum, glass bead and corruption are mixed according to the ratio
Acid is grown, it is dry-mixed under conditions of being 4000r/min prior to rotating speed, the wet mixing under conditions of rotating speed is 2000r/min is then added water,
Obtain slurry.
By above-mentioned slurry input hydraulic pressure molding machine, prior under the action of rotation helical axis that rotating speed is 300r/min by slurry
It is promoted in mold, hydraulic pressure is compacted, obtains billet；Then by billet vibratory compaction under conditions of vibration frequency is 20 times/min,
Extrusion molding obtains porous building-brick semi-finished product.
Then it conserves for the first time, is in porous building-brick surface of semi-finished spray water, watering amount in first time maintenance processes
400mL/m2, after conserving 30h for the first time, then second of maintenance is carried out, obtains porous building-brick, the hole ratio of the porous building-brick is
33%.
Embodiment 2
With the mixture of the puffing bagasse of 40 parts by weight and popcorn slag, the flyash of 35 parts by weight, 15 weight
Part stone, the river sands of 20 parts by weight, the cement of 8 parts by weight, the dihydrate gypsum that 8 parts by weight water absorption rates are 35%, 2 parts by weight
Glass bead and the humic acid of 2 parts by weight are collectively as raw material.
Wherein, chemical composition contains the SO of 1.2 parts by weight in the flyash of every 100 parts by weight3, 55 parts by weight SiO2、2
The Fe of parts by weight2O3, 30 parts by weight Al2O3, the CaO of 2 parts by weight and the MgO of 5.5 parts by weight.
Stone contains the handstone that the big stone that grain size is 10mm and grain size are 5mm.The weight of big stone and handstone
It is 1：3.Respectively include the first gangue and the second gangue in big stone and handstone, the first gangue and the second gangue
Weight ratio is 1：2.
The granularity of glass bead is 1.5mm, apparent density 350kg/m3, floatability 95%, the volume of 1MPa pressure
Loss late is 35%.
Above-mentioned puffing bean dregs, flyash, stone, river sand, cement, dihydrate gypsum, glass bead and corruption are mixed according to the ratio
Acid is grown, it is dry-mixed under conditions of being 5000r/min prior to rotating speed, the wet mixing under conditions of rotating speed is 2500r/min is then added water,
Obtain slurry.
By above-mentioned slurry input hydraulic pressure molding machine, prior under the action of rotation helical axis that rotating speed is 400r/min by slurry
It is promoted in mold, hydraulic pressure is compacted, obtains billet；Then by billet vibratory compaction under conditions of vibration frequency is 30 times/min,
Extrusion molding obtains porous building-brick semi-finished product.
Then it conserves for the first time, is in porous building-brick surface of semi-finished spray water, watering amount in first time maintenance processes
300mL/m2, after conserving 32h for the first time, then second of maintenance is carried out, obtains porous building-brick, the hole ratio of the porous building-brick is
35%.
Embodiment 3
With the mixture of the puffing bagasse of 42 parts by weight and puffing tea grounds, the flyash of 33 parts by weight, 17 parts by weight
Stone, the river sand of 18 parts by weight, the cement of 13 parts by weight, 4.5 parts by weight water absorption rates be 32% dihydrate gypsum, 2.5 weight
The glass bead of part and the humic acid of 1.8 parts by weight are collectively as raw material.
Wherein, chemical composition contains the SO of 1 parts by weight in the flyash of every 100 parts by weight3, 52 parts by weight SiO2、1.8
The Fe of parts by weight2O3, 27 parts by weight Al2O3, the CaO of 1.8 parts by weight and the MgO of 5.2 parts by weight.
Stone contains the handstone that the big stone that grain size is 8.5mm and grain size are 3.5mm.The weight of big stone and handstone
Amount is 1：2.4.The first gangue and the second gangue, the first gangue and the second bastard coal are respectively included in big stone and handstone
The weight ratio of stone is 1：1.6.
The granularity of glass bead is 0.5mm, apparent density 320kg/m3, floatability 92%, the volume of 1MPa pressure
Loss late is 32%.
Above-mentioned puffing bean dregs, flyash, stone, river sand, cement, dihydrate gypsum, glass bead and corruption are mixed according to the ratio
Acid is grown, it is dry-mixed under conditions of being 4250r/min prior to rotating speed, the wet mixing under conditions of rotating speed is 2200r/min is then added water,
Obtain slurry.
By above-mentioned slurry input hydraulic pressure molding machine, prior under the action of rotation helical axis that rotating speed is 325r/min by slurry
It is promoted in mold, hydraulic pressure is compacted, obtains billet；Then by billet vibratory compaction under conditions of vibration frequency is 24 times/min,
Extrusion molding obtains porous building-brick semi-finished product.
Then it conserves for the first time, is in porous building-brick surface of semi-finished spray water, watering amount in first time maintenance processes
350mL/m2, after conserving 31h for the first time, then second of maintenance is carried out, obtains porous building-brick, the hole ratio of the porous building-brick is
38%.
Embodiment 4
With the puffing bean dregs of 43 parts by weight, the mixture of puffing bagasse and puffing tea grounds, 32 parts by weight flyash,
The stone of 19 parts by weight, the river sand of 17 parts by weight, the cement of 12 parts by weight, the dihydrate gypsum that 4 parts by weight water absorption rates are 34%, 2
The glass bead of parts by weight and the humic acid of 1.5 parts by weight are collectively as raw material.
Wherein, chemical composition contains the SO of 1.2 parts by weight in the flyash of every 100 parts by weight3, 54 parts by weight SiO2、
The Fe of 1.6 parts by weight2O3, 29 parts by weight Al2O3, the CaO of 1.6 parts by weight and the MgO of 5.4 parts by weight.
Stone contains the handstone that the big stone that grain size is 9.5mm and grain size are 4.5mm.The weight of big stone and handstone
Amount is 1：2.8.The first gangue and the second gangue, the first gangue and the second bastard coal are respectively included in big stone and handstone
The weight ratio of stone is 1：1.8.
The granularity of glass bead is 1.5mm, apparent density 340kg/m3, floatability 94%, the volume of 1MPa pressure
Loss late is 34%.
Above-mentioned puffing bean dregs, flyash, stone, river sand, cement, dihydrate gypsum, glass bead and corruption are mixed according to the ratio
Acid is grown, it is dry-mixed under conditions of being 4270r/min prior to rotating speed, the wet mixing under conditions of rotating speed is 2400r/min is then added water,
Obtain slurry.
By above-mentioned slurry input hydraulic pressure molding machine, prior under the action of rotation helical axis that rotating speed is 375r/min by slurry
It is promoted in mold, hydraulic pressure is compacted, obtains billet；Then by billet vibratory compaction under conditions of vibration frequency is 26 times/min,
Extrusion molding obtains porous building-brick semi-finished product.
Then it conserves for the first time, is in porous building-brick surface of semi-finished spray water, watering amount in first time maintenance processes
380mL/m2, after conserving 31.5h for the first time, then second of maintenance is carried out, obtains porous building-brick, the hole ratio of the porous building-brick is
30%.
Embodiment 5
With the puffing slag of 44 parts by weight, the flyash of 31 parts by weight, the stone of 18 parts by weight, the river sand of 16 parts by weight, 12
The glass bead and 1.5 parts by weight of the cement of parts by weight, the dihydrate gypsum that 3 parts by weight water absorption rates are 32.5%, 2.5 parts by weight
Humic acid collectively as raw material.
Wherein, puffing slag is the mixture of puffing bean dregs, puffing bagasse, popcorn slag and puffing tea grounds, expanded soyabean
Slag, puffing bagasse, popcorn slag and puffing tea grounds weight ratio be 1：3：1：3.
Chemical composition contains the SO of 1.1 parts by weight in the flyash of every 100 parts by weight3, 52.5 parts by weight SiO2, 1.8 weights
Measure the Fe of part2O3, 28 parts by weight Al2O3, the CaO of 1.8 parts by weight and the MgO of 5.2 parts by weight.
Stone contains the handstone that the big stone that grain size is 9mm and grain size are 4mm.The weight of big stone and handstone is
1：2.5.Respectively include the first gangue and the second gangue in big stone and handstone, the first gangue and the second gangue
Weight ratio is 1：1.8.
The granularity of glass bead is 1mm, apparent density 325kg/m3, floatability 92.5%, the volume of 1MPa pressure
Loss late is 32.5%.
Above-mentioned puffing bean dregs, flyash, stone, river sand, cement, dihydrate gypsum, glass bead and corruption are mixed according to the ratio
Acid is grown, it is dry-mixed under conditions of being 4500r/min prior to rotating speed, the wet mixing under conditions of rotating speed is 2250r/min is then added water,
Obtain slurry.
By above-mentioned slurry input hydraulic pressure molding machine, prior under the action of rotation helical axis that rotating speed is 350r/min by slurry
It is promoted in mold, hydraulic pressure is compacted, obtains billet；Then by billet vibratory compaction under conditions of vibration frequency is 25 times/min,
Extrusion molding obtains porous building-brick semi-finished product.
Then it conserves for the first time, is in porous building-brick surface of semi-finished spray water, watering amount in first time maintenance processes
320mL/m2, after conserving 31h for the first time, then second of maintenance is carried out, obtains porous building-brick, the hole ratio of the porous building-brick is
40%.
Test example
According to《The porous building-bricks of GB23439~2009》Method, porous building-brick to the gained of above-described embodiment 1~5 and
The porous building-brick of control group carries out Mechanics Performance Testing respectively, and result is as shown in Table 1 and Table 2.Wherein, table 1 is maintenance number of days
For the mechanical property of 2 days porous building-bricks, table 2 is the mechanical property for conserving the porous building-brick that number of days is 28 days.
1 mechanical property table of table
2 mechanical property table of table
As can be seen from Table 1, the porous building-brick that the embodiment of the present invention 1~5 is provided, when maintenance number of days is 2 days
Wait, compression strength has reached 9~10MPa, and when maintenance number of days is 28 days, compression strength has reached 26~28MPa, have compared with
Good mechanical property.
In conclusion above-mentioned various substances by being used as the original of porous building-brick by porous building-brick provided in an embodiment of the present invention
Material, on the one hand can be improved the utilization rate of various raw materials, and play the role of certain waste utilization, reduces the production of porous building-brick
Cost；On the other hand material shrinking percentage, the resistance to compression of enhancing product, anti-folding and tensile strength can be reduced.Preparation method is simple, favorably
In the porous building-brick for preparing good mechanical properties.
Embodiments described above is a part of the embodiment of the present invention, instead of all the embodiments.The reality of the present invention
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
Claims (10)
1. a kind of porous building-brick, which is characterized in that in parts by weight, raw material includes：The puffing slag of 40~45 parts by weight,
The flyash of 28~35 parts by weight, the stone of 15~20 parts by weight, the river sand of 15~20 parts by weight, 8~13 parts by weight cement,
The humic acid of the dihydrate gypsum of 3~8 parts by weight, the glass bead of 2~3 parts by weight and 1~2 parts by weight；
The puffing cinder ladle includes at least one of puffing bean dregs, puffing bagasse, popcorn slag and puffing tea grounds；
Hole ratio >=30% of the porous building-brick.
2. porous building-brick according to claim 1, which is characterized in that in parts by weight, the raw material includes：42~
The stone, 15~18 weights of the puffing slag of 44 parts by weight, the flyash of 30~33 parts by weight, 17~20 parts by weight
Measure the institute of the river sand of part, the cement of 10~13 parts by weight, the dihydrate gypsum of 3~5 parts by weight, 2~3 parts by weight
State glass bead and the humic acid of 1~2 parts by weight.
3. porous building-brick according to claim 2, which is characterized in that in parts by weight, the raw material includes：43 weights
Measure the puffing slag of part, the flyash of 32 parts by weight, the stone of 19 parts by weight, 17 parts by weight the river sand,
The cement of 12 parts by weight, the dihydrate gypsum of 4 parts by weight, the glass bead of 2 parts by weight and 1.5 parts by weight
The humic acid.
4. according to claims 1 to 3 any one of them porous building-brick, which is characterized in that the flyash of every 100 parts by weight
Middle chemical composition includes the SO of 1~1.2 parts by weight3, 50~55 parts by weight SiO2, 1.5~2 parts by weight Fe2O3, 25~30
The Al of parts by weight2O3, the CaO of 1.5~2 parts by weight and the MgO of 5~5.5 parts by weight.
5. porous building-brick according to claim 4, which is characterized in that the stone includes the great Shi that grain size is 8~10mm
Sub and grain size is the handstone of 3~8mm, and the first gangue and the second coal are respectively included in the big stone and the handstone
The weight ratio of spoil, first gangue and second gangue is 1：1.5~2.
6. porous building-brick according to claim 5, which is characterized in that the granularity of the glass bead is 0.5~1.5mm,
Apparent density is 300~350kg/m3, floatability is that the Volume Loss rate of 90~95%, 1MPa pressure is 30~35%.
7. a kind of preparation method of such as claim 1~6 any one of them porous building-brick, which is characterized in that including following step
Suddenly：
According to the ratio first by the puffing slag, the flyash, the stone, the river sand, the cement, the dihydrate gypsum,
The glass bead and humic acid mixing, add water mixing, obtain slurry；
The slurry is expressed into die for molding, obtains porous building-brick semi-finished product；
The porous building-brick semi-finished product are conserved.
8. preparation method according to claim 7, which is characterized in that the puffing slag, the flyash, the stone,
The river sand, the cement, the dihydrate gypsum, the glass bead and the humic acid are 4000~5000r/ prior to rotating speed
It is dry-mixed under conditions of min, then add water the wet mixing under conditions of rotating speed is 2000~2500r/min.
9. preparation method according to claim 7, which is characterized in that extrusion molding is to be molded the slurry input hydraulic pressure
Then machine promotes the slurry under the action of rotating speed is the rotation helical axis of 300~400r/min in mold, hydraulic pressure squeezes
It is real, billet is obtained, then by the billet vibratory compaction, extrusion molding under conditions of vibration frequency is 20~30 times/min.
10. preparation method according to claim 7, which is characterized in that maintenance includes that maintenance for the first time and second conserve,
In the porous building-brick surface of semi-finished spray water in first time maintenance processes, watering amount is 300~400mL/m2, support for the first time
After protecting 30~32h, then carry out second of maintenance.
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| CN102633476A (en) * | 2012-05-09 | 2012-08-15 | 中国建筑设计研究院 | Building block material produced by vegetable fiber, industrial ash slag and concrete and production process thereof |
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Application publication date: 20181030 |