CN105016689A - Cast-in-situ wall material - Google Patents
Cast-in-situ wall material Download PDFInfo
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- CN105016689A CN105016689A CN201510482062.5A CN201510482062A CN105016689A CN 105016689 A CN105016689 A CN 105016689A CN 201510482062 A CN201510482062 A CN 201510482062A CN 105016689 A CN105016689 A CN 105016689A
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- wall material
- phosphogypsum
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- 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
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Abstract
The invention relates to a cast-in-situ wall material. The cast-in-situ wall material is composed of a waterproof cushion material and an ardealite wall material. The waterproof cushion material comprises, by mass, 35%-45% of sulphoaluminate cement, 1%-3% of ultra-fine fly ash, 45%-55% of quartz sand, 3%-6% of expanding agent, 0.1%-1% of thickening time control agent and 0.5%-1% of water reducing agent. The ardealite wall material comprises, by mass, 78%-90% of ardealite powder, 8%-20% fly ash, 1%-3% of cement, 0.2%-0.5% of retarder, 0.1%-0.5% of water reducing agent and 0.05%-0.10% of air-entraining agent. The cast-in-situ wall material has the advantages that due to the fact that the cast-in-situ wall material is constructed in a layered pouring mode, labor force can be reduced, and construction efficiency is made higher.
Description
Technical field
The invention belongs to building material field, particularly relate to a kind of cast-in-situ wall material.
Background technology
At present, in inner wall of building construction, the building structure pattern of employing is: use air-mixed concrete pieces, gypsum block etc. to do skeleton construction, in building block, then carries out plaster leveling make body of wall.This constructional method has a lot of drawback: labor capacity is large, and need a large amount of labor force, and labour intensity is high, efficiency is low, thus causes integrated construction cost higher.Along with the continuous rising of labor cost, the arrangement and method for construction seeking how to save labor force has become the hot issue of building field.
Phosphogypsum is topmost industry byproduct during China phosphorous chemical industry is produced, and what be that phosphatic fertilizer company discharges in process of production take terra alba as the throw out of main component.Often produce one ton of P
2o
54.5 ~ 5.5 tons of phosphogypsums will be discharged.Phosphogypsum is because making its Utilizing question become an international technology difficult problem, so mainly take the measure of storing up containing impurity such as certain phosphorus, fluorine, organism for a long time.At present, phosphogypsum can be applicable to the fields such as Cement industry, material of construction, chemical fertilizer industry and agricultural, but utilization is little.Within 2012, China produces 1,300 ten thousand tons, phosphate fertilizer, and phosphogypsum generation nearly 7,000 ten thousand tons, accumulative volume of cargo in storage is more than 300,000,000 tons, and phosphogypsum comprehensive utilization ratio is less than 10%.How to solve the problem that phosphogypsum low cost utilizes on a large scale and also become a research direction.
Cast-in-situ wall is a kind of is base-material with inorganic coagulation material, and with the slurry gathered materials, adulterant, admixture and water etc. are mixed and made into high flowability, after shaping, maintenance is to the construction material in the regulation length of time.At present, cast-in-situ wall material has foamed concrete cast-in-situ wall material and gypsum cast-in-situ wall material two kinds.Gypsum cast-in-situ wall material can utilize the solid waste such as desulfurated plaster, phosphogypsum etc. in a large number, is novel energy-saving materials for wall.But there are some problems in gypsum materials for wall, the problem such as short in time of coagulation, intensity is not high, poor water resistance, product performance are unstable.
The domestic preparation method having occurred some cast-in-place gypsum wall materials: the patent No. is 201110167087.8 to disclose " cast-in-place gypsum wall and constructional method thereof "; The patent No. is 200910117570.8 to disclose " a kind of method of on-site casting molding of gypsum internal partition wall "; The patent No. is that 201310422109.X discloses " a kind of cast-in-situs gypsum wall construction method ".The weak point of these cast-in-situ wall arrangement and method for construction does not mainly arrange waterproof bed course, and material prescription is comparatively complicated, and the utilization ratio of gypsum is less, does not reach the object that low cost utilizes phosphogypsum on a large scale.
Summary of the invention
Technical problem to be solved by this invention proposes a kind of cast-in-situ wall material for above-mentioned prior art, both can solve the problem of water-proof gypsum difference, can improve again the operating efficiency of cast-in-situ wall.
It is as follows that the present invention solves the problems of the technologies described above adopted technical scheme: a kind of cast-in-situ wall material, and cast-in-situ wall material is made up of collision mat layer material and phosphogypsum materials for wall two portions:
Composition and the mass percentage thereof of described collision mat layer material are: aluminosulfate cement 35% ~ 45%, superfined flyash 1% ~ 3%, quartz sand 45%-55%, swelling agent 3% ~ 6%, and adjustable solidification agent is 0.1% ~ 1%, water reducer 0.5% ~ 1%;
Composition and the mass percentage thereof of described phosphogypsum materials for wall are: phosphogypsum powder: 78% ~ 90%, flyash: 8% ~ 20%, cement: 1%-3%, retardant: 0.2% ~ 0.5%, water reducer: 0.1% ~ 0.5%, air entrapment agent 0.05% ~ 0.10%.
By such scheme, the aluminosulfate cement in described collision mat layer material is quick hardening sulphoaluminate cement, and its specific surface area is 330 ~ 400m
2/ kg.
By such scheme, the specific surface area of the superfined flyash in described collision mat layer material is greater than 22000m
2/ kg.
By such scheme, the fineness modulus of the quartz sand in described collision mat layer material is 2.0 ~ 2.5.
By such scheme, the swelling agent in described collision mat layer material is magnesium oxide class swelling agent, and adjustable solidification agent is one in borax and boric acid or its compound, and water reducer is one in polycarboxylate water-reducer and melamine water reducing agent or its compound.
By such scheme, the phosphogypsum powder in described phosphogypsum materials for wall is β phosphogypsum powder, and fineness is that 0.074mm square hole sieve quality tails over 1%, presetting period is 6min, final setting time is 10min, and over dry ultimate compression strength is 11MPa, and over dry folding strength is 4.6MPa.
By such scheme, the flyash in described phosphogypsum materials for wall is second class powered coal ash, and its tap density is 2.2g/cm
3, specific surface area is 450m
2/ kg.
By such scheme, the cement in described phosphogypsum materials for wall is 42.5 grades of ordinary Portland cements.
By such scheme, retardant in described phosphogypsum materials for wall is any one in tartrate, citric acid, Citrate trianion and SC retardant, water reducer is any one in polycarboxylate water-reducer and sulfonated melamine, and air entrapment agent is any one in sodium laurylsulfonate or sodium alkyl sulfate.
Sequence of construction of the present invention: the casting and constructing first carrying out collision mat layer material, then the casting and constructing carrying out phosphogypsum materials for wall.Be specially: a waterproof bed course template, cast collision mat layer material, under construction environment, maintenance is to 4h and collapsible die; Prop up materials for wall template, pouring gypsum wall material, maintenance 4h and collapsible die under construction environment.
Ultimate principle of the present invention: collision mat layer material adopts aluminosulfate cement as gelling material, can realize the effect of high-early-strength, provide operating efficiency.Superfined flyash can improve the paste structure of aluminosulfate cement, increases mobility; Quartz sand can play skeleton function as aggregate, reduces production cost; Swelling agent effectively can suppress the contraction of aluminosulfate cement; Adjustable solidification agent can regulate the time of coagulation of aluminosulfate cement, and constructability operates; Water reducer can improve the flowing property of aluminosulfate cement.
Phosphogypsum materials for wall for major gelled material, can utilize a large amount of trade waste phosphogypsum with β terra alba; Flyash add paste structure, the flowing property that can improve β terra alba, improve water resistance; Retardant add the time of coagulation that effectively can control slurry; Water reducer can reduce the water consumption of β terra alba, improves the intensity of hardenite; Air entrapment agent can reduce the density of hardenite by introducing micropore etc., realize lighting.
Advantage of the present invention is: compared with the preparation method of existing cast-in-situ wall material, cast-in-situ wall material of the present invention is divided into collision mat layer material and phosphogypsum materials for wall two portions, collision mat layer material bears waterproof layer, phosphogypsum materials for wall can utilize a large amount of trade waste phosphogypsums, and product performance are good; Compared with existing cast-in-situ wall material construction technology, cast-in-situ wall material of the present invention adopts the mode of laminated pouring to construct, and can reduce labor force, operating efficiency is higher.
Embodiment
In order to understand the present invention better, illustrate content of the present invention further below in conjunction with embodiment.
Embodiment 1:
Cast-in-situ wall material is made up of collision mat layer material and phosphogypsum materials for wall two portions.In collision mat layer material, the weighing quality of various raw material is respectively: aluminosulfate cement: 40kg, superfined flyash: 2kg, swelling agent: 5kg, quartz sand: 52kg, adjustable solidification agent: 0.3kg, water reducer: 0.7kg; In phosphogypsum materials for wall, the weighing quality of various raw material is: β phosphogypsum powder: 87.4kg, flyash: 10kg, cement: 2kg, retardant: 0.3kg, water reducer: 0.2kg, air entrapment agent: 0.1kg;
Aluminosulfate cement in collision mat layer material described in embodiment is quick hardening sulphoaluminate cement, and its specific surface area is 330 ~ 400m
2/ kg; The specific surface area of superfined flyash is greater than 22000m
2/ kg; The fineness modulus of quartz sand is 2.0 ~ 2.5; Swelling agent is magnesium oxide class swelling agent, and adjustable solidification agent is the compound of borax and boric acid, and water reducer is in melamine water reducing agent.Phosphogypsum powder in phosphogypsum materials for wall described in embodiment is β phosphogypsum powder, and fineness is that 0.074mm square hole sieve quality tails over 1%, and the presetting period is 6min, and final setting time is 10min, and over dry ultimate compression strength is 11MPa, and over dry folding strength is 4.6MPa; Flyash is second class powered coal ash, and its tap density is 2.2g/cm
3, specific surface area is 450m
2/ kg; Cement is 42.5 grades of ordinary Portland cements; Retardant is citric acid retardant, and water reducer is sulfonated melamine, and air entrapment agent is sodium laurylsulfonate.
Sequence of construction: various for waterproof bed course raw material is mixed, add 14kg water by 100kg material and stir, churning time controls at more than 5min, by slip casting in waterproof bed course template, is collapsible die after 2h; Mixed by various for phosphogypsum materials for wall raw material, add 60kg water by 100kg material and stir, churning time controls at more than 5min, by slip casting in wall form, is collapsible die after 4h.
The performance test results of product is as follows: the 2h ultimate compression strength of collision mat layer material is 17MPa, 28d ultimate compression strength is 45MPa, and plastic expansion rate is that the resistance to water coefficient of 0.01%, 28d is more than 0.95; The 4h ultimate compression strength of phosphogypsum materials for wall is 7.5MPa, 28d ultimate compression strength is 9.2MPa, and Absolute Dry Density is 980kg/m
3.
Embodiment 2:
Cast-in-situ wall material is made up of collision mat layer material and phosphogypsum materials for wall two portions.In collision mat layer material, the weighing quality of various raw material is respectively: aluminosulfate cement: 42kg, superfined flyash: 2kg, swelling agent: 4kg, quartz sand: 51kg, adjustable solidification agent: 0.3kg, water reducer: 0.7kg; In phosphogypsum materials for wall, the weighing quality of various raw material is: β phosphogypsum powder: 83.4kg, flyash: 14kg, cement: 2kg, retardant: 0.3kg, water reducer: 0.2kg, air entrapment agent: 0.1kg;
Aluminosulfate cement in collision mat layer material described in embodiment is quick hardening sulphoaluminate cement, and its specific surface area is 330 ~ 400m
2/ kg; The specific surface area of superfined flyash is greater than 22000m
2/ kg; The fineness modulus of quartz sand is 2.0 ~ 2.5; Swelling agent is magnesium oxide class swelling agent, and adjustable solidification agent is borax, and water reducer is the compound of polycarboxylate water-reducer and melamine water reducing agent.Phosphogypsum powder in phosphogypsum materials for wall described in embodiment is β phosphogypsum powder, and fineness is that 0.074mm square hole sieve quality tails over 1%, and the presetting period is 6min, and final setting time is 10min, and over dry ultimate compression strength is 11MPa, and over dry folding strength is 4.6MPa; Flyash is second class powered coal ash, and its tap density is 2.2g/cm
3, specific surface area is 450m
2/ kg; Cement is 42.5 grades of ordinary Portland cements; Retardant is SC retardant, and water reducer is polycarboxylate water-reducer, and air entrapment agent is sodium alkyl sulfate.
Sequence of construction: various for waterproof bed course raw material is mixed, add 14kg water by 100kg material and stir, churning time controls at more than 5min, by slip casting in waterproof bed course template, is collapsible die after 2h; Mixed by various for phosphogypsum materials for wall raw material, add 59kg water by 100kg material and stir, churning time controls at more than 5min, by slip casting in wall form, is collapsible die after 4h.
The performance test results of product is as follows: the 2h ultimate compression strength of collision mat layer material is 18.2MPa, 28d ultimate compression strength is 46.1MPa, and plastic expansion rate is that the resistance to water coefficient of 0.01%, 28d is more than 0.95; The 4h ultimate compression strength of phosphogypsum materials for wall is 7.4MPa, 28d ultimate compression strength is 9.1MPa, and Absolute Dry Density is 1020kg/m
3.
Embodiment 3:
Cast-in-situ wall material is made up of collision mat layer material and phosphogypsum materials for wall two portions.In collision mat layer material, the weighing quality of various raw material is respectively: aluminosulfate cement: 44kg, superfined flyash: 2kg, swelling agent: 3kg, quartz sand: 50kg, adjustable solidification agent: 0.3kg, water reducer: 0.7kg; In phosphogypsum materials for wall, the weighing quality of various raw material is: β phosphogypsum powder: 80.4kg, flyash: 16kg, cement: 3kg, retardant: 0.3kg, water reducer: 0.2kg, air entrapment agent: 0.1kg;
Aluminosulfate cement in collision mat layer material described in embodiment is quick hardening sulphoaluminate cement, and its specific surface area is 330 ~ 400m
2/ kg; The specific surface area of superfined flyash is greater than 22000m
2/ kg; The fineness modulus of quartz sand is 2.0 ~ 2.5; Swelling agent is magnesium oxide class swelling agent, and adjustable solidification agent is the compound of borax and boric acid, and water reducer is polycarboxylate water-reducer.Phosphogypsum powder in phosphogypsum materials for wall described in embodiment is β phosphogypsum powder, and fineness is that 0.074mm square hole sieve quality tails over 1%, and the presetting period is 6min, and final setting time is 10min, and over dry ultimate compression strength is 11MPa, and over dry folding strength is 4.6MPa; Flyash is second class powered coal ash, and its tap density is 2.2g/cm
3, specific surface area is 450m
2/ kg; Cement is 42.5 grades of ordinary Portland cements; Retardant is Citrate trianion, and water reducer is polycarboxylate water-reducer, and air entrapment agent is sodium laurylsulfonate.
Sequence of construction: various for waterproof bed course raw material is mixed, add 14kg water by 100kg material and stir, churning time controls at more than 5min, by slip casting in waterproof bed course template, is collapsible die after 2h; Mixed by various for phosphogypsum materials for wall raw material, add 58kg water by 100kg material and stir, churning time controls at more than 5min, by slip casting in wall form, is collapsible die after 4h.
The performance test results of product is as follows: the 2h ultimate compression strength of collision mat layer material is 19.4MPa, 28d ultimate compression strength is 47.6MPa, and plastic expansion rate is that the resistance to water coefficient of 0.01%, 28d is more than 0.95; The 4h ultimate compression strength of phosphogypsum materials for wall is 7.2MPa, 28d ultimate compression strength is 9.0MPa, and Absolute Dry Density is 1035kg/m
3.
Claims (9)
1. a cast-in-situ wall material, cast-in-situ wall material is made up of collision mat layer material and phosphogypsum materials for wall two portions:
Composition and the mass percentage thereof of described collision mat layer material are: aluminosulfate cement 35% ~ 45%, superfined flyash 1% ~ 3%, quartz sand 45%-55%, swelling agent 3% ~ 6%, and adjustable solidification agent is 0.1% ~ 1%, water reducer 0.5% ~ 1%;
Composition and the mass percentage thereof of described phosphogypsum materials for wall are: phosphogypsum powder: 78% ~ 90%, flyash: 8% ~ 20%, cement: 1%-3%, retardant: 0.2% ~ 0.5%, water reducer: 0.1% ~ 0.5%, air entrapment agent 0.05% ~ 0.10%.
2. cast-in-situ wall material according to claim 1, is characterized in that: the aluminosulfate cement in described collision mat layer material is quick hardening sulphoaluminate cement, and its specific surface area is 330 ~ 400m
2/ kg.
3. cast-in-situ wall material according to claim 1, is characterized in that: the specific surface area of the superfined flyash in described collision mat layer material is greater than 22000m
2/ kg.
4. cast-in-situ wall material according to claim 1, is characterized in that: the fineness modulus of the quartz sand in described collision mat layer material is 2.0 ~ 2.5.
5. cast-in-situ wall material according to claim 1, it is characterized in that: the swelling agent in described collision mat layer material is magnesium oxide class swelling agent, adjustable solidification agent is one in borax and boric acid or its compound, and water reducer is one in polycarboxylate water-reducer and melamine water reducing agent or its compound.
6. cast-in-situ wall material according to claim 1, it is characterized in that: the phosphogypsum powder in described phosphogypsum materials for wall is β phosphogypsum powder, fineness is that 0.074mm square hole sieve quality tails over 1%, presetting period is 6min, final setting time is 10min, over dry ultimate compression strength is 11MPa, and over dry folding strength is 4.6MPa.
7. cast-in-situ wall material according to claim 1, is characterized in that: the flyash in described phosphogypsum materials for wall is second class powered coal ash, and its tap density is 2.2g/cm
3, specific surface area is 450m
2/ kg.
8. cast-in-situ wall material according to claim 1, is characterized in that: the cement in described phosphogypsum materials for wall is 42.5 grades of ordinary Portland cements.
9. cast-in-situ wall material according to claim 1, it is characterized in that: the retardant in described phosphogypsum materials for wall is any one in tartrate, citric acid, Citrate trianion and SC retardant, water reducer is any one in polycarboxylate water-reducer and sulfonated melamine, and air entrapment agent is any one in sodium laurylsulfonate or sodium alkyl sulfate.
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| CN201510482062.5A CN105016689B (en) | 2015-08-07 | 2015-08-07 | A kind of cast-in-situ wall material |
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Cited By (4)
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|---|---|---|---|---|
| CN106517978A (en) * | 2016-10-31 | 2017-03-22 | 同济大学 | Light-weight thermal mortar taking ardealite hydraulic compound gel material as principal material |
| CN106587872A (en) * | 2016-11-21 | 2017-04-26 | 同济大学 | Early strength type ardealite-based micro dilatant grouting material |
| CN110240433A (en) * | 2019-06-26 | 2019-09-17 | 武汉科技大学 | Composite cement additive, complex cement sill and preparation method thereof |
| CN114213089A (en) * | 2021-12-24 | 2022-03-22 | 陕西煤业化工技术研究院有限责任公司 | Expansion fire-proof and fire-extinguishing sealing wall construction material for mine and use method thereof |
Families Citing this family (1)
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| CN108129105A (en) * | 2018-01-24 | 2018-06-08 | 合肥尚涵装饰工程有限公司 | A kind of cast-in-place multifunctional wall body material and preparation method thereof |
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| CN114213089A (en) * | 2021-12-24 | 2022-03-22 | 陕西煤业化工技术研究院有限责任公司 | Expansion fire-proof and fire-extinguishing sealing wall construction material for mine and use method thereof |
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