CN107324844A - A kind of method of the clay standby air-entrained concrete building block of steel scoria magnetic separation tail - Google Patents
A kind of method of the clay standby air-entrained concrete building block of steel scoria magnetic separation tail Download PDFInfo
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- CN107324844A CN107324844A CN201710371072.0A CN201710371072A CN107324844A CN 107324844 A CN107324844 A CN 107324844A CN 201710371072 A CN201710371072 A CN 201710371072A CN 107324844 A CN107324844 A CN 107324844A
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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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/04—Portland 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
- 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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- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to a kind of slag recycle utilization technology field, the method for especially relating to utilize the clay standby air-entrained concrete building block of the tail produced during steel scoria magnetic separation, it is characterised in that：With remaining tail mud, cement, sand, lime, gypsum, aluminium powder cream etc. during steel scoria magnetic separation for raw material, by stirring pulping, it is molded, rests and the process such as steam press maintenance, prepare air-entrained concrete building block, the volume of tail mud up to 30% (mass ratio) more than, solve in the Utilizing question of tail mud.
Description
Technical field
The present invention relates to slag recycle utilization technology field, the clay standby aerating coagulation of steel scoria magnetic separation tail is more particularly to utilized
The method of earth building blocks.
Background technology
Slag is being the waste residue that produces in steel smelting procedure, and the waste residue amount produced every year is up to several ten million tons, in slag
Generally contain a small amount of iron, thus generally the iron in slag is selected and is used using the method for magnetic separation, in order to improve
The rate of recovery of efficiency of magnetic separation and iron, typically reclaims iron using the technique of grinding-magnetic separation.In common wet ball-milling and wet magnetic separation
In technique, substantial amounts of tail mud can be produced after magnetic separation recovery iron, because water content is high, activity is low and is difficult by, is deposited in more
Plant area.There is reported in literature using steel scoria magnetic separation tail clay standby cement mixture, concrete and slag micropowder etc., but there is cost
The low shortcoming of high, utilization rate.
Air-entrained concrete building block is a kind of building material, the features such as with energy-conserving and environment-protective, thus developed recently is very fast.In system
Need to add a large amount of water during standby air-entrained concrete building block, thus with the clay standby air-entrained concrete building block of tail then without drying, only
Simple dehydration is needed, while the calcium oxide content of tail mud is very high, and calcium silicates mineral content is high, thus can replace water
Mud and lime, therefore with obvious cost advantage.
A kind of production method for the foam concrete block being made of slag of Chinese Patent Application No. 201310081667.4
In disclose using the clay standby concrete segment of the tail after slag steel scoria magnetic separation, but difference is, the original used in the application
Material be steel slag dry method crushing process produce tail mud, and prepare be low temperature reservation foam concrete block.Chinese patent Shen
Please be in a kind of numbers 201510334661.2 methods for manufacturing aerated-block it is also proposed that clay with the steel scoria magnetic separation tail after wet ball grinding
Standby air-entrained concrete building block, but more slag micropowder has been used in this method, can cause basicity not enough, be unfavorable for foaming and
It is quiet stop during intensity growth.
The content of the invention
The purpose of the present invention is that the tail mud of the high-moisture percentage produced to slag during magnetic separation is utilized, in order to realize
This purpose, the present invention is by replacing part lime and cement to be used to prepare air-entrained concrete building block, specific technical side in tail mud
Case is as follows：
Comprised the following steps using the clay standby air-entrained concrete building block of tail：Dehydration procedure：Using dehydration equipment by slag magnetic
Select tail mud to be dehydrated to moisture content and be no more than 30%, its dehydration equipment can be plate and frame filter press, belt filter press, centrifugal dehydrator
Etc. a kind of or other suitable dehydration equipments therein.Batch mixing pulping process 1：By steel scoria magnetic separation tail mud, cement, quick lime, silicon
Material, gypsum and sodium metasilicate are put into mixing plant after metering, and the action of forced stirring that adds water is into slurries 1.Batch mixing pulping process 2：
Foam stabilizer and aluminium powder cream are weighed in proportion, and adds them into water the slurries 2 that 2-5wt.% is made, then the slurries 2 are added
It is sufficiently stirred in slurries 1, slurry is made.Foaming stops conserving process with quiet：Obtained slurry injects die for molding, and is sent to
It is quiet stop fog room carry out foaming and it is quiet stop maintenance.The quiet curing condition that stops is：It is quiet at 50~60 DEG C to stop maintenance 4~6 hours.Hydro-thermal
Steam press maintenance process：Above-mentioned shaping building block is subjected to steam press maintenance, the steam press maintenance after form removal, cutting in feeding still kettle
Condition for 160-190 DEG C of temperature saturated vapor in conserve 6-9 hours, air-entrained concrete building block is made.
Wherein, in the compounding process 1, in terms of dry material quality, contain per 100kg compounds：Steel scoria magnetic separation tail mud
30-40kg, cement 6-10kg, quick lime 9-18g, siliceous material 39-53kg, gypsum 1-2.5kg, sodium metasilicate 1-2kg.Described
In compounding process 2, add aluminium powder cream 0.05-0.01kg, foam stabilizer 0.05- again per the compound in 100kg compounding process 1
0.12kg.In above-mentioned operation, total amount of water is the water sum that amount of water is carried with each material in raw material, accounts for compound with dry
The 60~65% of material meter gross mass.
Further, in a kind of method for the clay standby air-entrained concrete building block of steel scoria magnetic separation tail that the present invention is provided, also
There can be following characteristics：In raw material, steel scoria magnetic separation tail mud refer to slag by after broken wet grinding by magnetic separation recovery its
In fe and iron mineral after remaining tail mud, granularity requirements be 0.08mm square hole screens tail over no more than 15%.Siliceous material
Can be river sand, flyash etc., its fineness is that 0.08mm square hole screens are tailed over as 10~20%.
Further, a kind of method for the clay standby air-entrained concrete building block of steel scoria magnetic separation tail that the present invention is provided can also have
There are following characteristics：In the raw material, cement is portland cement or Portland cement, and profit requires that the cement in 1 is silicon
Acid salt cement or Portland cement, grade are not less than 42.5 grades；The content of free calcium oxide in quick lime is not less than 70%,
Its fineness is that 0.08mm square hole screens tail over no more than 25%；The SO3 contents of gypsum are not less than 40%, can be the naturals gypsum, take off
Sulphur gypsum；
Further, a kind of method for the clay standby air-entrained concrete building block of steel scoria magnetic separation tail that the present invention is provided can also have
There are following characteristics：In batch mixing pulping process 2, foam stabilizer is any one in Chinese honey locust powder, pull open powder.
Compared with the prior art, benefit of the invention is that：
(1) tail mud need not be dried, and be just used directly for preparing air-entrained concrete building block after simple dehydration, reduced
Cost.
(2) part lime, cement and siliceous material are replaced using steel scoria magnetic separation tail mud, production cost can be reduced.
Brief description of the drawings
Fig. 1 is process chart of the invention.
Embodiment
With reference to embodiment, the present invention is further described, following examples are intended to illustrate invention rather than to this
The further restriction of invention.
Embodiment 1
(1) steel scoria magnetic separation tail mud is dehydrated to moisture content with belt filter press first and is less than 35%, then by proportioning by steel
Slag magnetic separation tail mud, cement, quick lime, river sand, each raw material of sodium metasilicate are added in pulping equipment after metering, and slurry is made in the stirring that adds water
Liquid 1.In this example, in terms of dry material quality, include per 100kg raw materials：Steel scoria magnetic separation tail mud 32.5kg, cement 6kg, raw stone
Grey 13kg, river sand 46kg, natural gypsum 2.5kg and sodium metasilicate 1kg.Total amount of water is 60kg, and total amount of water includes steel scoria magnetic separation
The biodiversity brought into tail mud.
In raw material, cement is portland cement or Portland cement, and grade is not less than 42.5 grades, having in quick lime
Effect calcium oxide content is not less than 70wt.%.
(2) by proportioning by aluminium powder cream 0.08kg and Chinese honey locust powder 0.05kg, add water the slurries for being made into that mass fraction is 2wt.%
2, slurries 2 are added and continue to stir into slurry in slurries 1.And slurry is injected into die for molding, it is sent to the quiet fog room that stops and carries out
Foaming stops maintenance with quiet, and the quiet curing condition that stops is：It is quiet at 50 DEG C to stop maintenance 6 hours.
(3) above-mentioned operation shaping building block is sent in still kettle after form removal, cutting and carries out steam press maintenance, the steam pressure is supported
Air-entrained concrete building block is made to be conserved 6 hours in the saturated vapor of 190 DEG C of temperature in the condition of shield.
The performance of air-entrained concrete building block product is made in the present embodiment 1 can reach A3.5B06 grades.
Embodiment 2
(1) steel scoria magnetic separation tail mud is dehydrated to moisture content with plate and frame filter press first and is less than 35%, then by proportioning by steel
Slag magnetic separation tail mud, cement, quick lime, river sand, each raw material of sodium metasilicate are added in pulping equipment after metering, and slurry is made in the stirring that adds water
Liquid 1.In this example, in terms of dry material quality, include per 100kg raw materials：Steel scoria magnetic separation tail mud 37.5kg, cement 6kg, raw stone
Grey 14kg, river sand 40kg, natural gypsum 2.5kg and sodium metasilicate 1.5kg.Total amount of water is 65kg, and total amount of water includes slag magnetic
Select the biodiversity brought into tail mud.
In raw material, cement is portland cement or Portland cement, and grade is not less than 42.5 grades, having in quick lime
Effect calcium oxide content is not less than 70wt.%.
(2) by proportioning by aluminium powder cream 0.1kg and pull open powder 0.12kg, add water the slurries 2 for being made into that mass fraction is 4wt.%,
Slurries 2 are added and continue to stir into slurry in slurries 1.And slurry is injected into die for molding, it is sent to the quiet fog room that stops and is sent out
Bubble stops maintenance with quiet, and the quiet curing condition that stops is：It is quiet at 55 DEG C to stop maintenance 4 hours.
(3) above-mentioned operation shaping building block is sent in still kettle after form removal, cutting and carries out steam press maintenance, the steam pressure is supported
Air-entrained concrete building block is made to be conserved 7 hours in the saturated vapor of 170 DEG C of temperature in the condition of shield.
The performance of air-entrained concrete building block product is made in the present embodiment 2 can reach A3.5B06 grades.
Embodiment 3
(1) steel scoria magnetic separation tail mud is dehydrated to moisture content with plate and frame filter press first and is less than 35%, then by proportioning by steel
Slag magnetic separation tail mud, cement, quick lime, river sand, each raw material of sodium metasilicate are added in pulping equipment after metering, and slurry is made in the stirring that adds water
Liquid 1.In this example, in terms of dry material quality, include per 100kg raw materials：Steel scoria magnetic separation tail mud 30kg, cement 8kg, quick lime
18kg, river sand 42kg, natural gypsum 2kg and sodium metasilicate 1kg.Total amount of water is 60kg, and total amount of water includes steel scoria magnetic separation tail mud
In the biodiversity brought into.
In raw material, cement is portland cement or Portland cement, and grade is not less than 42.5 grades, having in quick lime
Effect calcium oxide content is not less than 70wt.%.
(2) by proportioning by aluminium powder cream 0.07kg and Chinese honey locust powder 0.08kg, add water the slurries for being made into that mass fraction is 4wt.%
2, slurries 2 are added and continue to stir into slurry in slurries 1.And slurry is injected into die for molding, it is sent to the quiet fog room that stops and carries out
Foaming stops maintenance with quiet, and the quiet curing condition that stops is：It is quiet at 55 DEG C to stop maintenance 6 hours.
(3) above-mentioned operation shaping building block is sent in still kettle after form removal, cutting and carries out steam press maintenance, the steam pressure is supported
Air-entrained concrete building block is made to be conserved 7 hours in the saturated vapor of 170 DEG C of temperature in the condition of shield.
The performance of air-entrained concrete building block product is made in the present embodiment 3 can reach A3.5B06 grades.
Embodiment 4
(1) steel scoria magnetic separation tail mud is dehydrated to moisture content with centrifuge first and is less than 35%, then by proportioning by slag magnetic
Each raw material of tail mud, cement, quick lime, flyash, sodium metasilicate is selected to add after metering in pulping equipment, slurries are made in the stirring that adds water
1.In this example, in terms of dry material quality, include per 100kg raw materials：Steel scoria magnetic separation tail mud 38.5kg, cement 10kg, raw stone
Grey 10kg, flyash 40kg, desulfurated plaster 1.5kg and sodium metasilicate 1.5kg.Total amount of water is 65kg, and total amount of water includes slag
The biodiversity brought into magnetic separation tail mud.
In raw material, cement is portland cement or Portland cement, and grade is not less than 42.5 grades, having in quick lime
Effect calcium oxide content is not less than 70wt.%.
(2) by proportioning by aluminium powder cream 0.06kg and Chinese honey locust powder 0.1kg, add water the slurries 2 for being made into that mass fraction is 5wt.%,
Slurries 2 are added and continue to stir into slurry in slurries 1.And slurry is injected into die for molding, it is sent to the quiet fog room that stops and is sent out
Bubble stops maintenance with quiet, and the quiet curing condition that stops is：It is quiet at 55 DEG C to stop maintenance 4 hours.
(3) above-mentioned operation shaping building block is sent in still kettle after form removal, cutting and carries out steam press maintenance, the steam pressure is supported
Air-entrained concrete building block is made to be conserved 7 hours in the saturated vapor of 170 DEG C of temperature in the condition of shield.
The performance of air-entrained concrete building block product is made in the present embodiment 4 can reach A3.5B06 grades.
Embodiment 5
(1) steel scoria magnetic separation tail mud is dehydrated to moisture content with belt filter press first and is less than 35%, then by proportioning by steel
Slag magnetic separation tail mud, cement, quick lime, river sand, each raw material of sodium metasilicate are added in pulping equipment after metering, and slurry is made in the stirring that adds water
Liquid 1.In this example, in terms of dry material quality, include per 100kg raw materials：Steel scoria magnetic separation tail mud 40kg, cement 6kg, quick lime
14kg, river sand 39kg, desulfurated plaster 1kg and sodium metasilicate 2kg.Total amount of water is 60kg, and total amount of water includes steel scoria magnetic separation tail mud
In the biodiversity brought into.
In raw material, cement is portland cement or Portland cement, and grade is not less than 42.5 grades, having in quick lime
Effect calcium oxide content is not less than 70wt.%.
(2) by proportioning by aluminium powder cream 0.07kg and pull open powder 0.08kg, add water the slurries for being made into that mass fraction is 5wt.%
2, slurries 2 are added and continue to stir into slurry in slurries 1.And slurry is injected into die for molding, it is sent to the quiet fog room that stops and carries out
Foaming stops maintenance with quiet, and the quiet curing condition that stops is：It is quiet at 60 DEG C to stop maintenance 4 hours.
(3) above-mentioned operation shaping building block is sent in still kettle after form removal, cutting and carries out steam press maintenance, the steam pressure is supported
Air-entrained concrete building block is made to be conserved 7 hours in the saturated vapor of 180 DEG C of temperature in the condition of shield.
The performance of air-entrained concrete building block product is made in the present embodiment 5 can reach A3.5B06 grades.
Embodiment 6
(1) steel scoria magnetic separation tail mud is dehydrated to moisture content with plate and frame filter press first and is less than 35%, then by proportioning by steel
Slag magnetic separation tail mud, cement, quick lime, river sand, each raw material of sodium metasilicate are added in pulping equipment after metering, and slurry is made in the stirring that adds water
Liquid 1.In this example, in terms of dry material quality, include per 100kg raw materials：Steel scoria magnetic separation tail mud 35kg, cement 6.5kg, raw stone
Grey 16kg, river sand 40.5kg, natural gypsum 2kg and sodium metasilicate 1.5kg.Total amount of water is 60kg, and total amount of water includes slag magnetic
Select the biodiversity brought into tail mud.
In raw material, cement is portland cement or Portland cement, and grade is not less than 42.5 grades, having in quick lime
Effect calcium oxide content is not less than 70wt.%.
(2) by proportioning by aluminium powder cream 0.06kg and Chinese honey locust powder 0.08kg, add water the slurries for being made into that mass fraction is 4wt.%
2, slurries 2 are added and continue to stir into slurry in slurries 1.And slurry is injected into die for molding, it is sent to the quiet fog room that stops and carries out
Foaming stops maintenance with quiet, and the quiet curing condition that stops is：It is quiet at 60 DEG C to stop maintenance 5 hours.
(3) above-mentioned operation shaping building block is sent in still kettle after form removal, cutting and carries out steam press maintenance, the steam pressure is supported
Air-entrained concrete building block is made to be conserved 9 hours in the saturated vapor of 160 DEG C of temperature in the condition of shield.
The performance of air-entrained concrete building block product is made in the present embodiment 6 can reach A3.5B06 grades.
Embodiment 7
(1) steel scoria magnetic separation tail mud is dehydrated to moisture content with plate and frame filter press first and is less than 35%, then by proportioning by steel
Slag magnetic separation tail mud, cement, quick lime, flyash, each raw material of sodium metasilicate are added in pulping equipment after metering, and the stirring that adds water is made
Slurries 1.In this example, in terms of dry material quality, include per 100kg raw materials：Steel scoria magnetic separation tail mud 30kg, cement 6kg, life
Lime 9kg, flyash 53kg, natural gypsum 2kg and sodium metasilicate 1.5kg.Total amount of water is 65kg, and total amount of water includes slag magnetic
Select the biodiversity brought into tail mud.
In raw material, cement is portland cement or Portland cement, and grade is not less than 42.5 grades, having in quick lime
Effect calcium oxide content is not less than 70wt.%.
(2) by proportioning by aluminium powder cream 0.07kg and Chinese honey locust powder 0.09kg, add water the slurries for being made into that mass fraction is 4wt.%
2, slurries 2 are added and continue to stir into slurry in slurries 1.And slurry is injected into die for molding, it is sent to the quiet fog room that stops and carries out
Foaming stops maintenance with quiet, and the quiet curing condition that stops is：It is quiet at 60 DEG C to stop maintenance 4 hours.
(3) above-mentioned operation shaping building block is sent in still kettle after form removal, cutting and carries out steam press maintenance, the steam pressure is supported
Air-entrained concrete building block is made to be conserved 8 hours in the saturated vapor of 170 DEG C of temperature in the condition of shield.
The performance of air-entrained concrete building block product is made in the present embodiment 7 can reach A3.5B06 grades.
Claims (8)
1. the method for the clay standby air-entrained concrete building block of a kind of steel scoria magnetic separation tail, it is characterised in that this method comprises the following steps：
(1) dehydration procedure：Steel scoria magnetic separation tail mud is dehydrated to moisture content using dehydration equipment and is no more than 30%, its dehydration equipment can
To be plate and frame filter press, belt filter press, centrifugal dehydrator a kind of or other suitable dehydration equipments therein；
(2) batch mixing pulping process 1：By steel scoria magnetic separation tail mud, cement, quick lime, siliceous material, gypsum and sodium metasilicate after metering
Put into mixing plant, the action of forced stirring that adds water is into slurries 1；
(3) batch mixing pulping process 2：Foam stabilizer and aluminium powder cream are weighed in proportion, and are added them into water and be made 2-5wt.%'s
Slurries 2, then the slurries 2 are added be sufficiently stirred in slurries 1, slurry is made；
(4) foaming stops conserving process with quiet：Obtained slurry injects die for molding, and be sent to it is quiet stop fog room carry out foaming and
Quiet to stop maintenance, the quiet curing condition that stops is：It is quiet at 50~60 DEG C to stop maintenance 4~6 hours；
(5) hydro-thermal steam press maintenance process：Above-mentioned shaping building block is subjected to steam press maintenance after form removal, cutting in feeding still kettle,
Air-entrained concrete building block is made to be conserved 6-9 hours in the saturated vapor of 160-190 DEG C of temperature in the condition of the steam press maintenance；
Wherein, in the batch mixing pulping process 1, in terms of dry material quality, contain per 100kg compounds：Steel scoria magnetic separation tail mud
30-40kg, cement 6-10kg, quick lime 9-18g, siliceous material 39-53kg, gypsum 1-2.5kg, sodium metasilicate 1-2kg；
In the compounding process 2, add aluminium powder cream 0.05-0.01kg, foam stabilizer again per the compound in 100kg compounding process 1
0.05-0.12kg；
In above-mentioned operation, total amount of water is the water sum that amount of water is carried with each material in raw material, accounts for compound with dry
The 60~65% of material meter gross mass.
2. the method that utilization steel scoria magnetic separation tail mud according to claim 1 produces air-entrained concrete building block, it is characterised in that
Wherein, the steel scoria magnetic separation tail mud refers to slag by crushing after wet grinding by magnetic separation recovery fe therein and iron ore
Remaining tail mud after thing, granularity requirements are that 0.08mm square hole screens are tailed over no more than 15%.
Tailed over 3. the fineness of siliceous material according to claim 1 is 0.08mm square hole screens as 10~20%.
4. siliceous material according to claim 1 can be river sand, flyash.
5. cement according to claim 1 is portland cement or Portland cement, grade is not less than 42.5 grades.
6. the content of free calcium oxide in quick lime according to claim 1 is not less than 70%, its fineness is 0.08mm side
Hole sizer tails over no more than 25%.
Can be the natural gypsum, desulfurated plaster 7. the SO3 contents of gypsum according to claim 1 are not less than 40%.
8. foam stabilizer according to claim 1 can be one kind in Chinese honey locust powder, pull open powder.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110436954A (en) * | 2019-07-26 | 2019-11-12 | 江苏禾吉新材料科技有限公司 | A kind of preparation method of autoclave aerated concrete building block |
| CN110540397A (en) * | 2019-08-27 | 2019-12-06 | 江苏博拓新型建筑材料有限公司 | anti-cracking energy-saving heat-insulating aerated concrete block and preparation method thereof |
| CN110590210A (en) * | 2019-09-27 | 2019-12-20 | 张文涛 | Recycling method of smelting steel tailings and prepared non-steamed foamed concrete block |
| CN111499329A (en) * | 2020-04-30 | 2020-08-07 | 安徽工业大学 | Autoclaved sand-lime brick containing steel slag tail mud and preparation method thereof |
| CN114890809A (en) * | 2022-06-17 | 2022-08-12 | 华润水泥技术研发有限公司 | Steel slag-based high-carbon-fixation-quantity non-autoclaved aerated concrete and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110436954A (en) * | 2019-07-26 | 2019-11-12 | 江苏禾吉新材料科技有限公司 | A kind of preparation method of autoclave aerated concrete building block |
| CN110540397A (en) * | 2019-08-27 | 2019-12-06 | 江苏博拓新型建筑材料有限公司 | anti-cracking energy-saving heat-insulating aerated concrete block and preparation method thereof |
| CN110590210A (en) * | 2019-09-27 | 2019-12-20 | 张文涛 | Recycling method of smelting steel tailings and prepared non-steamed foamed concrete block |
| CN111499329A (en) * | 2020-04-30 | 2020-08-07 | 安徽工业大学 | Autoclaved sand-lime brick containing steel slag tail mud and preparation method thereof |
| CN111499329B (en) * | 2020-04-30 | 2022-06-07 | 安徽工业大学 | Autoclaved sand-lime brick containing steel slag tail mud and preparation method thereof |
| CN114890809A (en) * | 2022-06-17 | 2022-08-12 | 华润水泥技术研发有限公司 | Steel slag-based high-carbon-fixation-quantity non-autoclaved aerated concrete and preparation method thereof |
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Application publication date: 20171107 |