CN102001849A - Light heat-insulation wall body material with straw fiber reinforced modified desulfurization gypsum base - Google Patents
Light heat-insulation wall body material with straw fiber reinforced modified desulfurization gypsum base Download PDFInfo
- Publication number
- CN102001849A CN102001849A CN2009102235250A CN200910223525A CN102001849A CN 102001849 A CN102001849 A CN 102001849A CN 2009102235250 A CN2009102235250 A CN 2009102235250A CN 200910223525 A CN200910223525 A CN 200910223525A CN 102001849 A CN102001849 A CN 102001849A
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- CN
- China
- Prior art keywords
- stalk fibre
- parts
- insulation wall
- light heat
- stalk
- Prior art date
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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
- C04B28/14—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
- C04B28/142—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 synthetic or waste calcium sulfate cements
- C04B28/144—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 synthetic or waste calcium sulfate cements the synthetic calcium sulfate being a flue gas desulfurization product
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention belongs to the technical field of the preparation of a new material, in particular to a light heat-insulation wall body material with a straw fiber reinforced modified desulfurization gypsum base, which is characterized by comprising the following raw materials in proportion: 50 to 70 parts of desulfurized dihydrate gypsum, 30 to 50 parts of ground slag, 5 to 16 parts of composite exciting agent, 5 to 15 parts of straw fibers, and 35 to 60 parts of water. The material has the advantages of low energy consumption, low cost, low construction intensity, good heat preservation and insulation properties, high strength, good water resistance and the like, causes less environmental burden, and can be used as the wall body heat prevention materials for industrial and civil buildings, and waiting rooms of stations.
Description
Technical field
The present invention relates to a kind of stalk fibre enhancing modified desulfurized gypsum base light heat-insulation wall material, this material is to utilize agricultural wastes such as desulfurization dihydrate gypsum, ground slag, stalk through processing and prepare a kind of novel light insulating wall material under the compound activator effect, belongs to technical field of new material preparation.Material of the present invention is applicable to industry and covil construction, station waiting room wall heat insulation material.
Background technology
Today in short supply day by day at natural resources and environmental pollution is on the rise, how to realize the Sustainable development of natural resources and reduce the focus that environmental pollution just becomes countries nowadays research.And China is just changing the big country of transition by traditional agriculture type country to industrialized country as one, needs the resource and the environmental problem that solve also increasing in its transition process.What wherein, performance agriculturally was particularly outstanding is as China's staple food crop byproduct---the reproducible utilization of stalk resource and the reproducible utilization of a large amount of industry and mining solid waste resources.Stalk is as the byproduct of farm crop such as straw, wheat straw, cornstalk or cotton stalk, and output is huge, and China's agricultural crop straw annual production is up to 600,000,000 tons.Stalk is as a kind of natural macromolecular material, and its source is abundant, cheap, density is little, has favorable biological degradability, belongs to green renewable raw materials.But, because the domestic technique level is limited, lack further investigation to the stalk performance, the utilization of stalk resource is also remained at low levels.Domestic utilization to stalk mainly concentrates on as several respects such as paper making raw material, production and use of marsh gas fermented material and animal feeds, overall utilization less than 30%, all the other overwhelming majority (70%～80%) stalk is not directly to bury, be exactly to burn the back as fertilizer sources, this is the serious waste resource not only, and, air is caused severe contamination owing to burn the generation volume of smoke.In industrial aspect, because China's most of area generating is all based on thermal power generation, useless sulfur in smoke composition for purifying treatment power plant coal, wet goods sulfurous fuels burning generation, can produce a large amount of industry by-product gypsums, be desulfurated plaster (FGD, Flue Gas Desulphurization Gypsum), also claim the desulfurization dihydrate gypsum.The desulfurated plaster amount that China demands handling at present urgently has reached more than 1,000 ten thousand tons, and its long-term a large amount of discarding is stored up not only landed property, also can cause the pollution of soil, underground water and environment.The main component of desulfurated plaster is crystalline sulfuric acid calcium (CaSO
42H
2O), in the ordinary course of things, desulfurated plaster aquation and setting and harden are extremely slow, even noncondensing for a long time, and do not have intensity.At its characteristic, the retardant of research used as manufacture of cement arranged, but, because desulfurated plaster plasticity is poor, be unfavorable for granulation on the one hand owing to need carry out the granulation processing to desulfurated plaster; Owing to granulating equipment and technology cost height, desulfurated plaster is compared with the plaster of paris and is not had price advantage after granulation is handled, thereby does not obtain large-scale popularization on the other hand.At present, domestic applied research to desulfurated plaster mainly concentrates on and utilizes its lightweight, moisture absorption characteristic, uses it for the production of light-weight decorative materials such as gypsum paper wood or gypsum sheet material, but that its consumption is still is very limited.
Therefore, for effectively solving the utilization ratio problem of stalk material and desulfurated plaster material, demand seeking an effective way urgently, on the basis that increases cost not significantly, give full play to the feature performance benefit of stalk and desulfurated plaster material, turn waste into wealth, realize sustainable development of resource.But, do not find very rational and effective solution at present at home as yet.
Summary of the invention
The objective of the invention is to propose a kind ofly have that energy consumption is low, cost is low, construction intensity is low, environmental pressure is little, heat insulation property is good, intensity is high and the stalk fibre enhancing modified desulfurized gypsum base light heat-insulation wall material of water-tolerant.
A kind of stalk fibre enhancing modified desulfurized gypsum base light heat-insulation wall material of the present invention.It is characterized in that it is made up of following starting material: desulfurization dihydrate gypsum, ground slag, compound activator, stalk fibre and water, each component proportion is: the desulfurization dihydrate gypsum: 50-70 part, ground slag: 30-50 part, compound activator: 5-16 part, stalk fibre: 5-15 part, water: 35-60 part.Material of the present invention has that energy consumption is low, cost is low, construction intensity is low, environmental pressure is little, heat insulation property is good, intensity is high and advantage such as water-tolerant, can be used for industry and covil construction, station waiting room wall heat insulation material.
Described desulfurization dihydrate gypsum is levigate desulfurization dihydrate gypsum, and its fineness requirement can be sieved by 0.15mm.
The specific surface area of described ground slag is at 400m
2/ kg-600m
2Between/the kg.
Described compound activator is alkali-activator and the composite by a certain percentage mixture of sulphate activation agent.
Described stalk fibre is the stalk fibre that farm crop such as straw, wheat straw, cornstalk or cotton stalk process, and stalk fibre length is 10mm-30mm, and diameter is 0.2mm-0.5mm.
The preparation method of stalk fibre enhancing modified desulfurized gypsum base light heat-insulation wall material of the present invention takes by weighing earlier desulfurization dihydrate gypsum, ground slag and compound activator in proportion, add stirrer and stir 30-60s, add stalk fibre more in proportion and stir 30-60s, add entry then in proportion and stir 120-180s, adorn mould after having stirred immediately, and carry out vibratory compaction and get final product.
The invention has the advantages that:
(1) make full use of existing industry and agricultural solid residue: desulfurization dihydrate gypsum, stalk and slag are main raw material(s), realize to waste material repeat utilize again.
(2) be excitaton source with the compound activator, the desulfurization dihydrate gypsum need not calcined, and direct and ground slag obtains active under the exciting agent effect, thereby cuts down the consumption of energy save energy.Improve the mechanical property and the endurance quality of goods with the hydration activity characteristics of ground slag.
(3) stalk material and desulfurization dihydrate gypsum and slag gel material is compound, improve the folding strength and the resistance to impact shock of material with the property of toughness of stalk fibre material, apparent density that reduces material with the lightweight and the heat preservation property of stalk fibre material and the thermal and insulating performance that improves goods.Simultaneously, again with the enhanced water resistance of the composite gelling material of desulfurization dihydrate gypsum and ground slag and the weather resistance that high compact has guaranteed to be scattered in its inner stalk fibre material.
Embodiment
Embodiment describes in detail: present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
A kind of stalk fibre enhancing modified desulfurized gypsum base light heat-insulation wall material of the present invention is made up of following starting material: desulfurization dihydrate gypsum, ground slag, compound activator, stalk fibre and water are prepared from following processing method by a certain percentage: take by weighing earlier desulfurization dihydrate gypsum, ground slag and compound activator in proportion, add stirrer and stir 30-60s, add stalk fibre more in proportion and stir 30-60s, add entry then in proportion and stir 120-180s, adorn mould after having stirred immediately, and carry out vibratory compaction and get final product.
Embodiment 1
In massfraction, earlier 50 parts of desulfurization dihydrate gypsums, 30 parts of ground slags and 5 parts of compound activators are added stirrer and stir 60s, add 5 parts of stalk fibre restir 30s then, add 35 parts of water at last and stir 120s, the mould of packing into immediately after stirring, vibratory compaction gets final product on high-frequency vibrating table.Materials for wall after the moulding is placed on 20 ℃ of temperature, and maintenance is to 28d in the curing room of humidity 90%.After tested, prepared materials for wall 28d folding strength is 7.7MPa, and 28d ultimate compression strength is 33.5MPa, and coefficient of softening is 0.96.
Embodiment 2
In massfraction, earlier 60 parts of desulfurization dihydrate gypsums, 45 parts of ground slags and 11 parts of compound activators are added stirrer and stir 60s, add 10 parts of stalk fibre restir 30s then, add 47 parts of water at last and stir 120s, the mould of packing into immediately after stirring, vibratory compaction gets final product on high-frequency vibrating table.Materials for wall after the moulding is placed on 20 ℃ of temperature, and maintenance is to 28d in the curing room of humidity 90%.After tested, prepared materials for wall 28d folding strength is 8.5MPa, and 28d ultimate compression strength is 36.4MPa, and coefficient of softening is 0.97.
Embodiment 3
In massfraction, earlier 65 parts of desulfurization dihydrate gypsums, 48 parts of ground slags and 15 parts of compound activators are added stirrer and stir 60s, add 15 parts of stalk fibre restir 30s then, add 58 parts of water at last and stir 120s, the mould of packing into immediately after stirring, vibratory compaction gets final product on high-frequency vibrating table.Materials for wall after the moulding is placed on 20 ℃ of temperature, and maintenance is to 28d in the curing room of humidity 90%.After tested, prepared materials for wall 28d folding strength is 9.6MPa, and 28d ultimate compression strength is 37.5MPa, and coefficient of softening is 0.98.
Embodiment 4
In massfraction, earlier 70 parts of desulfurization dihydrate gypsums, 50 parts of ground slags and 16 parts of compound activators are added stirrer and stir 60s, add 13 parts of stalk fibre restir 30s then, add 60 parts of water at last and stir 120s, the mould of packing into immediately after stirring, vibratory compaction gets final product on high-frequency vibrating table.Materials for wall after the moulding is placed on 20 ℃ of temperature, and maintenance is to 28d in the curing room of humidity 90%.After tested, prepared materials for wall 28d folding strength is 9.1MPa, and 28d ultimate compression strength is 38.6MPa, and coefficient of softening is 0.99.
At the cited various materials of the present invention: the upper lower limit value of desulfurization dihydrate gypsum, ground slag, compound activator, stalk fibre and water and interval value can both be realized the present invention, do not enumerate embodiment one by one at this.
Claims (5)
1. stalk fibre enhancing modified desulfurized gypsum base light heat-insulation wall material.It is characterized in that it is made up of following starting material: desulfurization dihydrate gypsum, ground slag, compound activator, stalk fibre and water, each component proportion is:
Desulfurization dihydrate gypsum: 50-70 part ground slag: 30-50 part
Compound activator: 5-16 part stalk fibre: 5-15 part
Water: 35-60 part.
2. according to the described a kind of stalk fibre enhancing modified desulfurized gypsum base light heat-insulation wall material of claim 1, it is characterized in that: described desulfurization dihydrate gypsum is levigate desulfurization dihydrate gypsum, and its fineness requirement can be sieved by 0.15mm.
3. according to the described a kind of stalk fibre enhancing modified desulfurized gypsum base light heat-insulation wall material of claim 1, it is characterized in that: the specific surface area of described ground slag is at 400m
2/ kg-600m
2Between/the kg.
4. according to the described a kind of stalk fibre enhancing modified desulfurized gypsum base light heat-insulation wall material of claim 1, it is characterized in that: described compound activator is alkali-activator and the composite by a certain percentage mixture of sulphate activation agent.
5. according to the described a kind of stalk fibre enhancing modified desulfurized gypsum base light heat-insulation wall material of claim 1, it is characterized in that: described stalk fibre is the stalk fibre that farm crop such as straw, wheat straw, cornstalk or cotton stalk process, stalk fibre length is 10mm-30mm, and diameter is 0.2mm-0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102235250A CN102001849A (en) | 2009-11-23 | 2009-11-23 | Light heat-insulation wall body material with straw fiber reinforced modified desulfurization gypsum base |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102235250A CN102001849A (en) | 2009-11-23 | 2009-11-23 | Light heat-insulation wall body material with straw fiber reinforced modified desulfurization gypsum base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102001849A true CN102001849A (en) | 2011-04-06 |
Family
ID=43809594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102235250A Pending CN102001849A (en) | 2009-11-23 | 2009-11-23 | Light heat-insulation wall body material with straw fiber reinforced modified desulfurization gypsum base |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603262A (en) * | 2012-03-27 | 2012-07-25 | 新疆农业大学 | Composite building material by taking cotton straw crushed aggregate and gypsum as matrix |
| CN104211363A (en) * | 2014-09-03 | 2014-12-17 | 石河子大学 | Basalt fiber and straw fiber mixed reinforced gypsum |
| CN104478391A (en) * | 2014-12-29 | 2015-04-01 | 魏群 | Inner wall board for building wall body and fabrication method of inner wall board |
| CN105967754A (en) * | 2016-05-09 | 2016-09-28 | 马振义 | Calcium sulfate dehydrate-based foam material with thermal insulation and preparation method thereof |
| CN105967623A (en) * | 2016-05-09 | 2016-09-28 | 马振义 | Gypsum-based foam material with thermal insulation and preparation method thereof |
| CN107879706A (en) * | 2018-01-09 | 2018-04-06 | 兰州理工大学 | A kind of materials for wall and preparation method thereof |
| CN108439882A (en) * | 2018-04-28 | 2018-08-24 | 江苏金贸科技发展有限公司 | Stalk desulfurated plaster composite wall material and preparation method thereof |
| CN112500096A (en) * | 2020-12-17 | 2021-03-16 | 上海二十冶建设有限公司 | Press-formed non-reinforced steel slag grating plate and preparation method thereof |
-
2009
- 2009-11-23 CN CN2009102235250A patent/CN102001849A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603262A (en) * | 2012-03-27 | 2012-07-25 | 新疆农业大学 | Composite building material by taking cotton straw crushed aggregate and gypsum as matrix |
| CN104211363A (en) * | 2014-09-03 | 2014-12-17 | 石河子大学 | Basalt fiber and straw fiber mixed reinforced gypsum |
| CN104478391A (en) * | 2014-12-29 | 2015-04-01 | 魏群 | Inner wall board for building wall body and fabrication method of inner wall board |
| CN104478391B (en) * | 2014-12-29 | 2016-01-20 | 魏群 | A kind of lining for construction wall and preparation method thereof |
| CN105967754A (en) * | 2016-05-09 | 2016-09-28 | 马振义 | Calcium sulfate dehydrate-based foam material with thermal insulation and preparation method thereof |
| CN105967623A (en) * | 2016-05-09 | 2016-09-28 | 马振义 | Gypsum-based foam material with thermal insulation and preparation method thereof |
| CN107879706A (en) * | 2018-01-09 | 2018-04-06 | 兰州理工大学 | A kind of materials for wall and preparation method thereof |
| CN108439882A (en) * | 2018-04-28 | 2018-08-24 | 江苏金贸科技发展有限公司 | Stalk desulfurated plaster composite wall material and preparation method thereof |
| CN108439882B (en) * | 2018-04-28 | 2020-11-13 | 江苏金贸科技发展有限公司 | Straw desulfurized gypsum composite wall material and preparation method thereof |
| CN112500096A (en) * | 2020-12-17 | 2021-03-16 | 上海二十冶建设有限公司 | Press-formed non-reinforced steel slag grating plate and preparation method thereof |
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Application publication date: 20110406 |