CN108658569A - A kind of magnesia oxychloride cement regenerated aggregate concrete and preparation method - Google Patents
A kind of magnesia oxychloride cement regenerated aggregate concrete and preparation method Download PDFInfo
- Publication number
- CN108658569A CN108658569A CN201810820478.7A CN201810820478A CN108658569A CN 108658569 A CN108658569 A CN 108658569A CN 201810820478 A CN201810820478 A CN 201810820478A CN 108658569 A CN108658569 A CN 108658569A
- Authority
- CN
- China
- Prior art keywords
- magnesia
- aggregate
- oxychloride cement
- concrete
- magnesium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- C04B28/30—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 magnesium cements or similar cements
- C04B28/32—Magnesium oxychloride cements, e.g. Sorel cement
-
- 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
Abstract
The invention discloses a kind of magnesia oxychloride cement regenerated aggregate concretes and preparation method thereof, belong to building material technical field.Magnesia oxychloride cement regenerated aggregate concrete is grouped as by the group of following parts by weight：Magnesia 12%~30%, magnesium chloride 4%~27%, compound water repellent agent 2%~4%, cinder powder 2%~4%, recycled fine aggregate 5%~30%, regenerated coarse aggregate 5%~45%, excess water.Compared with prior art, the advantageous effect of the application is that final setting time is suitable, good mechanical performance, and high temperature resistant is applied widely；It solves salt lake magnesium evil simultaneously, realizes recycling for sandstone and building solid castoff.
Description
Technical field
The invention belongs to building material technical field, more particularly to a kind of magnesia oxychloride cement regenerated aggregate concrete and its system
Preparation Method.
Background technology
Magnesia oxychloride cement is also known as institute's riel cement, magnesium cement, it is with the light burnt powder or low obtained by calcined magnesite stone
Ash content (main component MgO) obtained by warm dolime, with magnesium chloride hexahydrate (MgCl2·6H2) etc. O water-soluble magnesium salts are
Blender adds water and is formed by hardening of cement body.Magnesia oxychloride cement can harden quickly at normal temperatures and pressures, be formed crisp
The property very high artificial stone of larger and hardness.Magnesia oxychloride cement has many advantages：Quick solidifying, slightly high, surface light in air
Pool property is like marble, sound insulation, heat preservation, preparation process are simple and flow is short etc., it can be used for common buildings material, make builder's temporary shed,
Simple building, packing case, coal mine holder etc. replace timber, fiberglass tile that asbestos shingle, floor tile, ornament materials is replaced to replace Dali
Stone.It has broad application prospects in general fields such as daily lifes.
How to improve the water resistance of magnesia oxychloride cement currently, being had focused largely on for the research of magnesia oxychloride cement, how to solve
Certainly the problem of magnesia oxychloride cement mutability on, these researchs all achieve significant progress, substantially increase magnesia oxychloride cement
Water resistance simultaneously improves its mutability.The premise of these existing researchs is that magnesia oxychloride cement is applied in surroundings,
And few people put forth effort on research by under magnesia oxychloride cement application extreme environment, such as corrosive environment, under hot environment, cold
Environment is inferior.If magnesia oxychloride cement can substitute certain products under some extreme environment, huge economic effect will be generated
Beneficial and wide application prospect.
Every year, China will generate 200,000,000 tons or more of discarded concrete rubbish.These discarded concrete rubbish without appoint
Where is managed, and is transported to countryside or surrounding city carries out simply landfill or outdoor stockpiling, this not only wastes soil and resource, also dirt
Environment is contaminated；On the other hand, increasing with population, construction industry constantly increases the demand of sandstone aggregate.For a long time with
Come, largely being exploited due to sandstone aggregate causes resource exhaustion, landslide, riverbed to change its course, and seriously destroys natural environment.Production
With using construction refuse regenerated aggregate for economizing on resources, environmental protection and realize construction industry sustainable development have important meaning
Justice.
Cinder is the waste residue that industrial coal equipment generates, and generates more than one hundred million tons every year, and only part is used for brickmaking, paves the way at present
And cement mixture, utilization rate is low and value is low；It is other arbitrarily to stack, it occupies a large amount of soils and pollutes environment, there is an urgent need for improve
Its utilization rate and utility value.
Magnesium chloride is that salt lake carries after potassium or the product of sea salt chemical industry.It is only after Qinghai Salt Lake area carries potassium according to calculating, 2015
Up to 30,000,000 tons of by-product water chloromagnesite.The by-product water chloromagnesite of flood tide gives birth to salt lake resources comprehensive utilization and salt lake
State environment has adverse effect on.
Invention content
It is an object of the present invention in order to solve the problems, such as that above-mentioned magnesia oxychloride cement exists and mesh in extreme circumstances
Caused by preceding excessive discarded concrete rubbish, cinder, magnesium chloride the problems such as the wasting of resources, a kind of magnesia oxychloride cement regeneration is provided
Aggregate concrete and preparation method thereof.
To achieve the goals above, the technical solution that the application uses for：
A kind of magnesia oxychloride cement regenerated aggregate concrete, is grouped as by the group of following parts by weight：Magnesia 12%~30%,
Magnesium chloride 4%~27%, compound water repellent agent 2%~4%, cinder powder 2%~4%, recycled fine aggregate 5%~30%, regeneration are thick
Aggregate 5%~45%, excess water.
Further, the magnesia is light magnesium oxide powder, and the specific surface area of the light magnesium oxide powder is 2.1m2/
Kg~2.3m2/ kg, the mass fraction of magnesia is more than 80% in the light magnesium oxide powder.
Further, the magnesium chloride is one or both of industrial hex-ammoniate or bischofite.
Further, the compound water repellent agent is one or more in sodium phosphate, ferrous sulfate, magnesium sulfate or alum.
Further, the compound water repellent agent by sodium phosphate, ferrous sulfate, the mixing of four kinds of components of magnesium sulfate and alum and
At wherein the mass ratio of sodium phosphate, ferrous sulfate, magnesium sulfate and alum is sodium phosphate：Ferrous sulfate：Magnesium sulfate：Alum=10：
7：6：5.
Further, the recycled fine aggregate and the regenerated coarse aggregate are by discarded concrete road deck or building structure
Part by it is broken, except muscle, sorting, screening, clean, be dried to obtain, wherein the particle size of the recycled fine aggregate is
The particle size of 0.075nm~4.75nm, the regenerated coarse aggregate are 4.75nm~31.5nm.
Further, the cinder powder is that cinder is obtained by broken, drying, grinding after 45 μm of negative pressure are sieved, institute
The particle size for stating cinder powder is 0.5 μm~45 μm.
A kind of preparation method of magnesia oxychloride cement regenerated aggregate concrete, includes the following steps：
First, each component raw material is weighed；Then, by magnesium chloride, compound water repellent agent and water uniform stirring, magnesium chloride water is obtained
Solution；Finally, blender inner surface is soaked, magnesia, cinder powder, recycled fine aggregate and regenerated coarse aggregate is added to stirring
In machine, after stirring evenly, then blender is added in magnesium chloride brine and water and is stirred evenly, form chlorine oxygen magnesium Regenerated Bone after hardening
Expect concrete.
Compared with prior art, the beneficial effects of the invention are as follows：The chlorine oxygen magnesium regeneration concrete of the application, which has, more to be closed
Suitable final setting time；Compression strength can reach 70% in a relatively short period of time, can shorten the construction time, and mechanical property is excellent
It is good；The high temperature resistance of the concrete of the application is good simultaneously, even if still being able to use at a high temperature of 500 DEG C, expanding makes
Use range.Maintenance magnesium evil is solved simultaneously, protects limited sand and stone resources, realizes the cycle profit of sandstone and building solid castoff
With.
Description of the drawings
Fig. 1 is that 3 magnesia oxychloride cement regenerated aggregate concrete hardenite of the embodiment of the present invention and the SEM on cinder powder surface scheme.
Specific implementation mode
In order to make the present invention technological means, creation characteristic, achieving the goal is easy to understand with effect, below in conjunction with
The technical solution in the present invention is clearly and completely described in specific embodiments of the present invention.
Embodiment 1
A kind of magnesia oxychloride cement regenerated aggregate concrete, is grouped as by the group of following parts by weight：Magnesia 12%, magnesium chloride
4%, compound water repellent agent 2%, cinder powder 2%, recycled fine aggregate 30%, regenerated coarse aggregate 45%, excess water.
Embodiment 2
A kind of magnesia oxychloride cement regenerated aggregate concrete, is grouped as by the group of following parts by weight：Magnesia 30%, magnesium chloride
27%, compound water repellent agent 4%, cinder powder 4%, recycled fine aggregate 5%, regenerated coarse aggregate 5%, excess water.
Embodiment 3
A kind of magnesia oxychloride cement regenerated aggregate concrete, is grouped as by the group of following parts by weight：Magnesia 14%, magnesium chloride
14.2%, compound water repellent agent 2.6%, cinder powder 3.2%, recycled fine aggregate 26.6%, regenerated coarse aggregate 30.2%, excess water.
Embodiment 4
A kind of magnesia oxychloride cement regenerated aggregate concrete, is grouped as by the group of following parts by weight：Magnesia 14%, magnesium chloride
18.4%, compound water repellent agent 3.2%, cinder powder 3.2%, recycled fine aggregate 26.6%, regenerated coarse aggregate 30.2%, excess water.
Embodiment 5
A kind of magnesia oxychloride cement regenerated aggregate concrete, is grouped as by the group of following parts by weight：Magnesia 16.8%, chlorination
Magnesium 19.5%, compound water repellent agent 3.2%, cinder powder 3.2%, recycled fine aggregate 21.4%, regenerated coarse aggregate 24.3%, surplus
Water.
Embodiment 6
A kind of magnesia oxychloride cement regenerated aggregate concrete, is grouped as by the group of following parts by weight：Magnesia 16.8%, chlorination
Magnesium 22.9%, compound water repellent agent 3%, cinder powder 3.2%, recycled fine aggregate 21.4%, regenerated coarse aggregate 24.3%, excess water.
Comparative example
Current existing magnesia oxychloride cement regeneration concrete is generally grouped as by the group of following parts by weight：Magnesia
16.5%, industrial hex-ammoniate 16.9%, recycled fine aggregate 26.6%, coarse aggregate 30.2%, excess water.According to the above ratio by chlorination
Magnesium and water evenly mix, and obtain magnesium chloride brine；Blender inner surface is soaked, by it is above-mentioned than be added magnesia, cinder powder,
It after regenerating thick, fine aggregate, stirs 2-3 minutes, the addition of the water of obtained magnesium chloride brine and remainder is stirred evenly, firmly
Chlorine oxygen magnesium regenerated aggregate concrete is formed after change.
As the preferred embodiment of the present invention, magnesia is specific surface area 2.1m in above-described embodiment 1~62/ kg~
2.3m2The light magnesium oxide powder of/kg, and the mass fraction of magnesia is more than 80% in light magnesium oxide powder.
As the preferred embodiment of the present invention, magnesium chloride is one or both of industrial hex-ammoniate or bischofite.
As the preferred embodiment of the present invention, compound water repellent agent is one in sodium phosphate, ferrous sulfate, magnesium sulfate or alum
Kind is a variety of.If compound water repellent agent is to mix mixing by four kinds of sodium phosphate, ferrous sulfate, magnesium sulfate and alum components
Object, then sodium phosphate, ferrous sulfate, magnesium sulfate and alum mass ratio be：Sodium phosphate：Ferrous sulfate：Magnesium sulfate：Alum=
10：7：6：5.
As the preferred embodiment of the present invention, recycled fine aggregate and the regenerated coarse aggregate are by discarded concrete road surface
Plate or building element be broken, except muscle, sorting, screening, clean, be dried to obtain, the particle size of wherein recycled fine aggregate is
The particle size of 0.075nm~4.75nm, regenerated coarse aggregate are 4.75nm~31.5nm.
As the preferred embodiment of the present invention, cinder powder is cinder by being crushed, drying, grind after 45 μm of negative pressure are sieved
It obtains, the particle size of cinder powder is 0.5 μm~45 μm.
The preparation method of the magnesia oxychloride cement regenerated aggregate concrete of above-described embodiment 1~6 is as follows：
First, each component raw material is weighed；Then, by magnesium chloride, compound water repellent agent and water uniform stirring, magnesium chloride water is obtained
Solution；Finally, blender inner surface is soaked, magnesia, cinder powder, recycled fine aggregate and regenerated coarse aggregate is added to stirring
In machine, after stirring evenly, then blender is added in magnesium chloride brine and water and is stirred evenly, form chlorine oxygen magnesium Regenerated Bone after hardening
Expect concrete.
In order to study the application magnesia oxychloride cement regenerated aggregate concrete mechanical property, we are in above-described embodiment
The performance of magnesia oxychloride cement regenerated aggregate concrete be tested, as a result such as Tables 1 and 2.
The final setting time of magnesia oxychloride cement regenerated aggregate concrete is tested in table 1；Under being conserved in natural air, 3d, 7d
With the compression strength and 3d of 28d and the contraction strain of 60d.Table 2 is magnesia oxychloride cement regenerated aggregate concrete at high temperature anti-
Compressive Strength.
The mechanical property of 1 magnesia oxychloride cement regenerated aggregate concrete of table
As known from Table 1, with comparative example comparison it is found that the final setting time of the magnesia oxychloride cement regenerated aggregate concrete of the application
It is longer.In specifically work progress, there is a regulation to the final setting time of concrete, final setting time is too short and too long is unfavorable for applying
The final setting time of the progress of work, comparative example is 35min or so, this may result in Specific construction in the process, not carry out also
Specific constructing operation, concrete just solidify.The average final setting time of the application is 52min, this time both can ensure that construction
Progress, and after can ensure that construction, concrete can timely solidify, and the concrete of the application overcomes existing coagulation
The shorter problem of native final setting time.
In addition, in specifically work progress, at 7 days, the compression strength of concrete could reach the concrete of comparative example
To the 53.7% of its 28d compression strength, and the concrete of the application only needs 3 days, and compression strength can reach its 28d pressure resistance
77% or more of degree, it is clear that the concrete of the application can shorten the time of construction.And the contraction of the concrete of the application is answered
The contraction strain become also compared with the concrete of comparative example is small, illustrates that the concrete of the application is more unlikely to deform, and the application's is mixed
The water resistance for coagulating soil is more preferable.
The compression strength of chlorine oxygen magnesium regenerated aggregate concrete when 2 high temperature of table
As known from Table 2, for the concrete of comparative example when ambient temperature reaches 100 DEG C, compression strength just reduces 25%, when
When ambient temperature reaches 300 DEG C, compression strength is directly reduced to 0, illustrates that the concrete of comparative example reaches 300 DEG C in ambient temperature
When, it cannot reuse.In engineering, when the compression strength of concrete reduces by 30% or so, concrete, which just no longer meets, to be used
Condition, so the concrete of comparative example is just no longer complies with use condition when ambient temperature is higher than 100 DEG C.
And the concrete of the application, when ambient temperature is up to 500 DEG C, compression strength only declines 15% or so, explanation
The concrete of the application can use under the conditions of 500 DEG C, compared with comparative example, the application range of the concrete of the application
More extensively, it can be applied under hot environment.
Fig. 1 is the bonding interface microscopic appearance of embodiment 3 magnesia oxychloride cement hardenite and cinder powder, as seen from Figure 1, two kinds
Hardenite combination interface is in convex-concave shape, and interface cohesion is close, almost without gap and defect.
A label 1,2 and 3 positions is taken to carry out EDS analyses in Fig. 1, analysis shows, magnesia oxychloride cement hardenite and cinder powder
Interfacial adhesion is mainly derived from chemical interactions.In addition, the volcano gray matter (Al in cinder powder2O3、SiO2) and alum, hydrogen
Magnesia (Mg (OH)2) reaction generation aluminium-magnesium silicate (MgAl2(SiO3)4), it not only can significantly promote the resistance to of magnesia oxychloride cement
High-temperature behavior, while can also be in conjunction with the free chloride ion in magnesia oxychloride cement, and then promote the water resistance of magnesia oxychloride cement.Cause
This, substantially increases interface compactness and intensity.
In conclusion the chlorine oxygen magnesium regeneration concrete of the application has more suitable final setting time；In the shorter time
Interior compression strength can reach 77% or more of its 28d compression strength, can shorten the construction time, and good mechanical performance；Together
When the application concrete high temperature resistance it is good, even if still being able to use at a high temperature of 500 DEG C, expand using model
It encloses.Maintenance magnesium evil is solved simultaneously, protects limited sand and stone resources, realizes recycling for sandstone and building solid castoff.
Disclosed above is only presently preferred embodiments of the present invention, and still, the embodiment of the present invention is not limited to this, Ren Heben
What the technical staff in field can think variation should all fall into protection scope of the present invention.
Claims (8)
1. a kind of magnesia oxychloride cement regenerated aggregate concrete, which is characterized in that be grouped as by the group of following parts by weight：Magnesia
12%~30%, magnesium chloride 4%~27%, compound water repellent agent 2%~4%, cinder powder 2%~4%, recycled fine aggregate 5%~
30%, regenerated coarse aggregate 5%~45%, excess water.
2. a kind of magnesia oxychloride cement regenerated aggregate concrete as described in claim 1, which is characterized in that the magnesia is light
The specific surface area of matter magnesia powder, the light magnesium oxide powder is 2.1m2/ kg~2.3m2/ kg, oxygen in the light magnesium oxide powder
The mass fraction for changing magnesium is more than 80%.
3. a kind of magnesia oxychloride cement regenerated aggregate concrete as described in claim 1, which is characterized in that the magnesium chloride is work
One or both of industry magnesium chloride or bischofite.
4. a kind of magnesia oxychloride cement regenerated aggregate concrete as described in claim 1, which is characterized in that the compound water repellent agent
It is one or more in sodium phosphate, ferrous sulfate, magnesium sulfate or alum.
5. a kind of magnesia oxychloride cement regenerated aggregate concrete as claimed in claim 4, which is characterized in that the compound water repellent agent
It is mixed by four kinds of sodium phosphate, ferrous sulfate, magnesium sulfate and alum components, wherein sodium phosphate, ferrous sulfate, magnesium sulfate and bright
The mass ratio of alum is sodium phosphate：Ferrous sulfate：Magnesium sulfate：Alum=10：7：6：5.
6. a kind of magnesia oxychloride cement regenerated aggregate concrete as described in claim 1, which is characterized in that the recycled fine aggregate
With the regenerated coarse aggregate be by discarded concrete road deck or building element by it is broken, except muscle, sorting, screening, cleaning,
It is dried to obtain, wherein the particle size of the recycled fine aggregate is 0.075nm~4.75nm, the grain size of the regenerated coarse aggregate
Size is 4.75nm~31.5nm.
7. a kind of magnesia oxychloride cement regenerated aggregate concrete as described in claim 1, which is characterized in that the cinder powder is coal
Slag is obtained by broken, drying, grinding after 45 μm of negative pressure are sieved, and the particle size of the cinder powder is 0.5 μm~45 μ
m。
8. a kind of preparation method of magnesia oxychloride cement regenerated aggregate concrete as described in claim 1, which is characterized in that including
Following steps：
First, each component raw material is weighed；Then, by magnesium chloride, compound water repellent agent and water uniform stirring, it is water-soluble to obtain magnesium chloride
Liquid；Finally, blender inner surface is soaked, magnesia, cinder powder, recycled fine aggregate and regenerated coarse aggregate is added to blender
It is interior, after stirring evenly, then blender is added in magnesium chloride brine and water and is stirred evenly, forms chlorine oxygen magnesium recycled aggregate after hardening
Concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810820478.7A CN108658569B (en) | 2018-07-24 | 2018-07-24 | Magnesium oxychloride cement recycled aggregate concrete and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810820478.7A CN108658569B (en) | 2018-07-24 | 2018-07-24 | Magnesium oxychloride cement recycled aggregate concrete and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108658569A true CN108658569A (en) | 2018-10-16 |
| CN108658569B CN108658569B (en) | 2020-04-21 |
Family
ID=63788633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810820478.7A Active CN108658569B (en) | 2018-07-24 | 2018-07-24 | Magnesium oxychloride cement recycled aggregate concrete and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108658569B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109251004A (en) * | 2018-11-15 | 2019-01-22 | 中科镁基（北京）科技有限公司 | It is a kind of with carbon chromium slag be main aggregate high-strength concrete and preparation method thereof |
| CN109694230A (en) * | 2019-02-15 | 2019-04-30 | 青海民族大学 | A kind of magnesia oxychloride cement regenerated aggregate concrete |
| CN113735550A (en) * | 2021-09-07 | 2021-12-03 | 中国建筑第五工程局有限公司 | Magnesium oxychloride cement-based muck non-fired building material and preparation method thereof |
| CN113788666A (en) * | 2021-10-12 | 2021-12-14 | 江西秀川科技有限公司 | Super early strength recycled concrete and preparation method thereof |
| US11279655B2 (en) * | 2019-06-21 | 2022-03-22 | Tsinghua University | Method of making waterproof magnesium oxychloride refractory brick by fly ash from municipal solid waste incineration |
| CN115677252A (en) * | 2022-11-07 | 2023-02-03 | 江苏科技大学 | Method for improving water resistance of magnesium oxychloride cement recycled aggregate concrete |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5004505A (en) * | 1988-11-04 | 1991-04-02 | Cac, Inc. | Magnesium oxychloride cement compositions and methods for manufacture and use |
| US5110361A (en) * | 1988-11-04 | 1992-05-05 | Cac, Inc. | Magnesium oxychloride cement compositions and methods for manufacture and use |
| CN104529377A (en) * | 2014-12-03 | 2015-04-22 | 中国科学院青海盐湖研究所 | Water-resistant magnesium oxychloride cement, preparation method and application thereof |
| CN105906304A (en) * | 2016-04-19 | 2016-08-31 | 兰州理工大学 | Water-proof type magnesium oxychloride cement concrete and a preparing method thereof |
| CN107352896A (en) * | 2017-06-30 | 2017-11-17 | 南昌工程学院 | A kind of cinder powder regenerated aggregate concrete and preparation method thereof |
-
2018
- 2018-07-24 CN CN201810820478.7A patent/CN108658569B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5004505A (en) * | 1988-11-04 | 1991-04-02 | Cac, Inc. | Magnesium oxychloride cement compositions and methods for manufacture and use |
| US5110361A (en) * | 1988-11-04 | 1992-05-05 | Cac, Inc. | Magnesium oxychloride cement compositions and methods for manufacture and use |
| CN104529377A (en) * | 2014-12-03 | 2015-04-22 | 中国科学院青海盐湖研究所 | Water-resistant magnesium oxychloride cement, preparation method and application thereof |
| CN105906304A (en) * | 2016-04-19 | 2016-08-31 | 兰州理工大学 | Water-proof type magnesium oxychloride cement concrete and a preparing method thereof |
| CN107352896A (en) * | 2017-06-30 | 2017-11-17 | 南昌工程学院 | A kind of cinder powder regenerated aggregate concrete and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109251004A (en) * | 2018-11-15 | 2019-01-22 | 中科镁基（北京）科技有限公司 | It is a kind of with carbon chromium slag be main aggregate high-strength concrete and preparation method thereof |
| CN109694230A (en) * | 2019-02-15 | 2019-04-30 | 青海民族大学 | A kind of magnesia oxychloride cement regenerated aggregate concrete |
| US11279655B2 (en) * | 2019-06-21 | 2022-03-22 | Tsinghua University | Method of making waterproof magnesium oxychloride refractory brick by fly ash from municipal solid waste incineration |
| CN113735550A (en) * | 2021-09-07 | 2021-12-03 | 中国建筑第五工程局有限公司 | Magnesium oxychloride cement-based muck non-fired building material and preparation method thereof |
| CN113735550B (en) * | 2021-09-07 | 2022-09-23 | 中国建筑第五工程局有限公司 | Magnesium oxychloride cement-based muck non-fired building material and preparation method thereof |
| CN113788666A (en) * | 2021-10-12 | 2021-12-14 | 江西秀川科技有限公司 | Super early strength recycled concrete and preparation method thereof |
| CN115677252A (en) * | 2022-11-07 | 2023-02-03 | 江苏科技大学 | Method for improving water resistance of magnesium oxychloride cement recycled aggregate concrete |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108658569B (en) | 2020-04-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108658569A (en) | A kind of magnesia oxychloride cement regenerated aggregate concrete and preparation method | |
| Nimwinya et al. | A sustainable calcined water treatment sludge and rice husk ash geopolymer | |
| He et al. | Synthesis and characterization of red mud and rice husk ash-based geopolymer composites | |
| Kupaei et al. | Mix design for fly ash based oil palm shell geopolymer lightweight concrete | |
| Chen et al. | Evaluation of the eco-friendly crushed waste oyster shell mortars containing supplementary cementitious materials | |
| Muthusamy et al. | Mechanical properties of oil palm shell lightweight aggregate concrete containing palm oil fuel ash as partial cement replacement | |
| Kupaei et al. | The effect of different parameters on the development of compressive strength of oil palm shell geopolymer concrete | |
| CN108609998A (en) | A kind of manufacturing method non-burning brick using industrial solid rubbish | |
| CN105621907A (en) | Calcium-base geopolymer and preparation method thereof | |
| CN101817667B (en) | Light non-fired hollow building blocks produced from ceramic waste residue and manufacturing method thereof | |
| CN108101492B (en) | A kind of environment-friendly type mud ecological brick and preparation method thereof | |
| CN101948286A (en) | Aerated concrete building block produced by using ceramic waste and manufacturing method thereof | |
| KR20090098181A (en) | High compressive strength quartz mortar and manufacturing method thereof | |
| CN104072048A (en) | Formula for preparing building material and product thereof by utilizing caustic sludge | |
| CN103332877B (en) | Method for preparing inorganic cementing material by using dredged silt | |
| Mahendran et al. | Performance of fly ash and copper slag based geopolymer concrete | |
| Singh et al. | Durability of bricks coated with red mud based geopolymer paste | |
| KR101056448B1 (en) | Manufacturing method of inorganic binder mixed with incineration fly ash and floor ash | |
| CN108751911A (en) | A kind of manufacturing method non-burning brick using industrial slag | |
| Alghamdi | A review of cementitious alternatives within the development of environmental sustainability associated with cement replacement | |
| CN102276212B (en) | Steamed and pressed light environment-friendly brick produced from waste building residues and production method thereof | |
| EP3371125B1 (en) | Process for producing a building material obtained from an alkaline activation of sawing sludge of stone materials | |
| Patel et al. | Strength and transport properties of concrete with styrene butadiene rubber latex modified lightweight aggregate | |
| KR101263227B1 (en) | Geopolymer Composition having high strength and manufacturing method thereof | |
| CN109206116A (en) | A kind of manufacturing method using industrial tailings and coal ash baking-free brick |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |