CN103922675B - Ready-mixed plastering mortar prepared from industrial waste liquid slag - Google Patents
Ready-mixed plastering mortar prepared from industrial waste liquid slag Download PDFInfo
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- CN103922675B CN103922675B CN201410156506.1A CN201410156506A CN103922675B CN 103922675 B CN103922675 B CN 103922675B CN 201410156506 A CN201410156506 A CN 201410156506A CN 103922675 B CN103922675 B CN 103922675B
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- liquid slag
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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 belongs to the technical field of building materials and particularly relates to ready-mixed plastering mortar prepared from industrial waste liquid slag. The ready-mixed plastering mortar consists of lime, pulverized fuel ash, natural sand, liquid slag powder, liquid slag aggregate particles, a thickener, an air entraining agent and a thickening time control agent. The ready-mixed plastering mortar prepared from the industrial waste liquid slag has the excellent performances of lime conversation, environmental friendliness, use of waste, high water retention rate, good operability and the like and has the characteristics that the plastering mortar is not cracked under the construction environments of dry air and relatively large wind speed in Xinjiang region.
Description
Technical field
The invention belongs to building material technical field, particularly relate to a kind of premixing motar utilizing industrial waste liquid slag to prepare.
Background technology
Fuel waste residue is one of maximum renewable resources of China's quantity, and comprehensive utilization fuel waste residue is domestic and international question of common concern, is also that save energy, protection of the environment, promotion are energy-conservation, the needs of sustainable development.Industrial liquid slag is after cyclone furnace 1450 DEG C ~ 1600 DEG C high temperature suspension combustions, in molten melt drop, forms Water Quenching Slag when discharging through high pressure water quenching.Industrial liquid slag can be used as aggregate and substitutes natural sand for concrete and mortar after suitably drying, removing moisture, fragmentation.The liquid slag of shrend has higher chemically reactive, and main chemical compositions is ca aluminosilicate, and this slag also levigately further can make liquid state slag powder, can be widely used in the building material mades such as cement, mortar, concrete, building block, brick.Liquid slag mineral mainly reaches more than 97% vitreum, its chemical constitution with select coal relevant, hardness is larger, frangible, but grindability is poor, easily there is the levigate phenomenon of selectivity with cement clinker intergrinding process, affect cement output and quality, limit range of application and the quantity of liquid slag.
The domestic silicate cement, steamed brick, silicon-calcium-potafertilizer fertilizer, mineral wool etc. utilizing industrial waste liquid slag to produce at present.But there is many shortcomings in the method for these process liquid slag: make silicate cement adulterant, volume is less; Production liquid slag steamed brick cost is higher; Production silicon-calcium-potafertilizer fertilizer is technically not overripened, causes secondary pollution; Slag wool production, although cost is lower, because ature of coal constantly changes, calcium content fluctuation is large, makes liquid slag viscosity B coefficent large, throws at a high speed cotton strip and comes difficult, cause quality unstable to whizzer.
The development course of premixing mortar, popularization experience, product attribute, policy environment, engineering specifications are very close with ready mixed concrete, and following premixing mortar market is inevitable become sunrise industry as ready mixed concrete industry.Utilize industrial waste liquid slag to prepare premixing motar can promote premixing mortar fast development and growth from economy and environmental protection two aspect, and have wide market outlook.
The present invention uses plant residue ash masonry and coating mortar method processed with a kind of: the Chinese patent application of publication number: CN1428306A, has similar content, and one of difference is that this patent flour coal ash and cement need add toughener combined grinding; Two of difference is that this patent does not use natural sand; Three of difference is that this patent liquid slag substitutes sand completely, and liquid slag is medium sand; Four of difference is that this patent does not use liquid slag powder; Five of difference is that this patent does not use thickening material; Six of difference is that this patent does not use air entrapment agent; Seven of difference is that this patent does not use adjustable solidification agent.
Summary of the invention
The object of the invention is to: utilize industrial waste liquid slag as a kind of novel premixing mortar adulterant, its excellent properties had and lower tooling cost.Relative to common mineral adulterant, this industrial waste liquid slag need water than little, chemical admixture adaptability is good, the performances such as hydration heat is low, and volume stability is good, can better improve the application property of mortar, adjustment mortar internal structure and interfacial state, reduce hydration heat, improve the degree of compactness of mortar, improve the weather resistance of mortar.Industrial liquid slag coordinates thickening material and softening agent, and make this motar have indehiscent feature under dry air and the larger construction environment of wind speed, such as, in Xinjiang region, effect is fine.
For achieving the above object, the technical solution that the present invention proposes is as follows: a kind of premixing motar utilizing industrial waste liquid slag to prepare, this premixing motar is by cement, flyash, natural sand, liquid slag powder, liquid slag particles of aggregates, thickening material, air entrapment agent and adjustable solidification agent composition, above-mentioned each raw materials by weight portion ratio is: cement 80 ~ 120 parts, 100 ~ 200 parts, flyash, natural sand 350 ~ 600 parts, liquid slag powder 30 ~ 80 parts, liquid slag particles of aggregates 100 ~ 350 parts, thickening material 0.4 ~ 3 part, air entrapment agent 0.1 ~ 0.3 part and adjustable solidification agent 0.1 ~ 0.3 part.
Described cement to be strength grade be 32.5 composite Portland cement.
Described flyash is II grade of flyash.
Described natural sand is that grating district belongs to I district's coarse sand.
Described liquid slag powder is the Na of 2 ~ 3%
2sO
4with 1 ~ 2% Ca (OH)
2add industrial original state liquid slag surplus again; After grinding 1 ~ 2 hour; The specification obtained is specific surface area is 400 ~ 600m
2the liquid slag powder of/kg.
Described liquid slag particles of aggregates is the particle diameter <9.50mm that industrial original state liquid slag obtains after screening or fragmentation, and fineness modulus is the liquid slag particles of aggregates of 3.1 ~ 3.7.
Described thickening material is the one in Vltra tears, Natvosol and wilkinite.
Described air entrapment agent is sodium lauryl sulphate or Chinese honey locust air entrapment agent.
Described adjustable solidification agent is the one in Sunmorl N 60S, tripoly phosphate sodium STPP and Trisodium Citrate.
Beneficial effect of the present invention: 1, industrial liquid slag is to the beneficial effect of premixing motar.
(1) do not contain free calcium oxide in liquid slag, therefore there is not the hidden danger of volume stability.
(2) the aquation calorific value of liquid slag is 1/4 ~ 1/3 of hydrated cementitious calorific value, can alleviate premixing motar causes fire crack harm because of hydration heat to a great extent.
(3) the active SiO in liquid slag
2with the hydrated product Ca (OH) of cement
2carry out secondary reaction of hydration, the C-S-H gel deposition generating indissoluble, in the hole of aggregate and cement stone interface, thus reduces thick crystallization, decreases intensity and the disadvantageous Ca of weather resistance (OH)
2interface transition layer enrichment with align, improve interface structure.Meanwhile, the cumulative volume of mortar internal void obviously declines, and harmless hole is increased, and harmful hole is reduced, and pore structure obviously sends, and structure is finer and close, and finally improves the weather resistance of mortar.
(4) liquid slag powder can be filled in comparatively between coarse cement particle, make the size-grade distribution of gelling material more reasonable, thus can batched water be reduced, the mobility of mortar mixture is significantly improved, obtains shaping closely knit, uniform quality, workability preferably motar.
(5) liquid slag substitutes cement and can significantly reduce mortar cost, and liquid slag particles of aggregates substitutes natural sand not only can reduce mortar cost, can also solve the problem of local natural sand resource shortage.
2, the beneficial effect of thickening material.
Thickening material can cause cement slurry viscosity to increase, mortar is made to have good colloidal property, therefore thickening material can also increase substantially the water-retentivity of fresh mortar, and this both can prevent mortar segregation, can prevent again mortar initial moisture from scattering too fast and causing mortar to ftracture.Meanwhile, thickening material can improve the homogeneity of mortar, adds the strain cracking that strength mortar produces because of unbalance stress.
3, the beneficial effect of air entrapment agent.
Air entrapment agent is water-soluble fabulous, add premixing motar can make to form closed bubble small in a large number in mortar, these microbubbles are as ball, reduce the friction resistance between liquid slag particles of aggregates, the mobility of mortar mixture is increased, bleeding quantity reduces, and water-retentivity, glutinous poly-property is corresponding improves thereupon, makes mortar have good workability.
Embodiment
In order to understand the present invention better, illustrate content of the present invention further below in conjunction with embodiment, but content of the present invention is not only confined to the following examples.
Embodiment 1: a kind of premixing motar utilizing industrial waste liquid slag to prepare, this premixing motar is made up of cement, flyash, natural sand, liquid slag powder, liquid slag particles of aggregates, thickening material, air entrapment agent and adjustable solidification agent, and above-mentioned each raw materials by weight portion ratio is: cement 100 parts, 150 parts, flyash, natural sand 400 parts, liquid slag powder 50 parts, liquid slag particles of aggregates 300 parts, wilkinite (thickening material) 3 parts, sodium lauryl sulphate (air entrapment agent) 0.3 part, Sunmorl N 60S (adjustable solidification agent) 0.1 part.
Described cement to be strength grade be 32.5 composite Portland cement.
Described flyash is II grade of flyash.
Described natural sand is that grating district belongs to I district's coarse sand.
Described liquid slag powder is the Na of 2 ~ 3%
2sO
4with 1 ~ 2% Ca (OH)
2add industrial original state liquid slag surplus again; After grinding 1 ~ 2 hour; The specification obtained is specific surface area is 400 ~ 600m
2the liquid slag powder of/kg.
Described liquid slag particles of aggregates is the particle diameter <9.50mm that industrial original state liquid slag obtains after screening or fragmentation, and fineness modulus is the liquid slag particles of aggregates of 3.1 ~ 3.7.
Described thickening material is the one in Vltra tears, Natvosol and wilkinite.
Described air entrapment agent is sodium lauryl sulphate or Chinese honey locust air entrapment agent.
Described adjustable solidification agent is the one in Sunmorl N 60S, tripoly phosphate sodium STPP and Trisodium Citrate.
Implement performance in table 1.
Embodiment 2: a kind of premixing motar utilizing industrial waste liquid slag to prepare, this premixing motar is made up of cement, flyash, natural sand, liquid slag powder, liquid slag particles of aggregates, thickening material, air entrapment agent and adjustable solidification agent, and above-mentioned each raw materials by weight portion ratio is: cement 80 parts, 100 parts, flyash, natural sand 600 parts, liquid slag powder 70 parts, liquid slag particles of aggregates 150 parts, Vltra tears (thickening material) 0.4 part, Chinese honey locust air entrapment agent (air entrapment agent) 0.1 part, tripoly phosphate sodium STPP (adjustable solidification agent) 0.3 part.
Described cement to be strength grade be 32.5 composite Portland cement.
Described flyash is II grade of flyash.
Described natural sand is that grating district belongs to I district's coarse sand.
Described liquid slag powder is the Na of 2 ~ 3%
2sO
4with 1 ~ 2% Ca (OH)
2add industrial original state liquid slag surplus again; After grinding 1 ~ 2 hour; The specification obtained is specific surface area is 400 ~ 600m
2the liquid slag powder of/kg.
Described liquid slag particles of aggregates is the particle diameter <9.50mm that industrial original state liquid slag obtains after screening or fragmentation, and fineness modulus is the liquid slag particles of aggregates of 3.1 ~ 3.7.
Described thickening material is the one in Vltra tears, Natvosol and wilkinite.
Described air entrapment agent is sodium lauryl sulphate or Chinese honey locust air entrapment agent.
Described adjustable solidification agent is the one in Sunmorl N 60S, tripoly phosphate sodium STPP and Trisodium Citrate.
Implement performance in table 1.
Embodiment 3: a kind of premixing motar utilizing industrial waste liquid slag to prepare, this premixing motar is made up of cement, flyash, natural sand, liquid slag powder, liquid slag particles of aggregates, thickening material, air entrapment agent and adjustable solidification agent, and above-mentioned each raw materials by weight portion ratio is: cement 120 parts, 200 parts, flyash, natural sand 480 parts, liquid slag powder 80 parts, liquid slag particles of aggregates 120 parts, Natvosol (thickening material) 0.6 part, Chinese honey locust air entrapment agent (air entrapment agent) 0.1 part, Trisodium Citrate (adjustable solidification agent) 0.2 part.
Described cement to be strength grade be 32.5 composite Portland cement.
Described flyash is II grade of flyash.
Described natural sand is that grating district belongs to I district's coarse sand.
Described liquid slag powder is the Na of 2 ~ 3%
2sO
4with 1 ~ 2% Ca (OH)
2add industrial original state liquid slag surplus again; After grinding 1 ~ 2 hour; The specification obtained is specific surface area is 400 ~ 600m
2the liquid slag powder of/kg.
Described liquid slag particles of aggregates is the particle diameter <9.50mm that industrial original state liquid slag obtains after screening or fragmentation, and fineness modulus is the liquid slag particles of aggregates of 3.1 ~ 3.7.
Described thickening material is the one in Vltra tears, Natvosol and wilkinite.
Described air entrapment agent is sodium lauryl sulphate or Chinese honey locust air entrapment agent.
Described adjustable solidification agent is the one in Sunmorl N 60S, tripoly phosphate sodium STPP and Trisodium Citrate.
Implement performance in table 1.
Embodiment 4: a kind of premixing motar utilizing industrial waste liquid slag to prepare, this premixing motar is made up of cement, flyash, natural sand, liquid slag powder, liquid slag particles of aggregates, thickening material, air entrapment agent and adjustable solidification agent, and above-mentioned each raw materials by weight portion ratio is: cement 100 parts, 170 parts, flyash, natural sand 350 parts, liquid slag powder 30 parts, liquid slag particles of aggregates 350 parts, wilkinite (thickening material) 3 parts, sodium lauryl sulphate (air entrapment agent) 0.3 part, Sunmorl N 60S (adjustable solidification agent) 0.1 part.
Described cement to be strength grade be 32.5 composite Portland cement.
Described flyash is II grade of flyash.
Described natural sand is that grating district belongs to I district's coarse sand.
Described liquid slag powder is the Na of 2 ~ 3%
2sO
4with 1 ~ 2% Ca (OH)
2add industrial original state liquid slag surplus again; After grinding 1 ~ 2 hour; The specification obtained is specific surface area is 400 ~ 600m
2the liquid slag powder of/kg.
Described liquid slag particles of aggregates is the particle diameter <9.50mm that industrial original state liquid slag obtains after screening or fragmentation, and fineness modulus is the liquid slag particles of aggregates of 3.1 ~ 3.7.
Described thickening material is the one in Vltra tears, Natvosol and wilkinite.
Described air entrapment agent is sodium lauryl sulphate or Chinese honey locust air entrapment agent.
Described adjustable solidification agent is the one in Sunmorl N 60S, tripoly phosphate sodium STPP and Trisodium Citrate.
Implement performance in table 1.
The premixing motar the performance test results that table 1 embodiment gained utilizes industrial waste liquid slag to prepare.
Claims (4)
1. the premixing motar utilizing industrial waste liquid slag to prepare, it is characterized in that: this premixing motar is made up of cement, flyash, natural sand, liquid slag powder, liquid slag particles of aggregates, thickening material, air entrapment agent and adjustable solidification agent, above-mentioned each raw materials by weight portion ratio is: cement 80 ~ 120 parts, 100 ~ 200 parts, flyash, natural sand 350 ~ 600 parts, liquid slag powder 30 ~ 80 parts, liquid slag particles of aggregates 100 ~ 350 parts, thickening material 0.4 ~ 3 part, air entrapment agent 0.1 ~ 0.3 part and adjustable solidification agent 0.1 ~ 0.3 part; Wherein: described cement to be strength grade be 32.5 composite Portland cement; Described flyash is II grade of flyash; Described natural sand is that grating district belongs to I district's coarse sand; Described liquid slag powder is the Na of 2 ~ 3%
2sO
4with 1 ~ 2% Ca (OH)
2add industrial original state liquid slag surplus again; After grinding 1 ~ 2 hour; The specification obtained is specific surface area is 400 ~ 600m
2the liquid slag powder of/kg; Described liquid slag particles of aggregates is the particle diameter <9.50mm that industrial original state liquid slag obtains after screening or fragmentation, and fineness modulus is the liquid slag particles of aggregates of 3.1 ~ 3.7.
2. the premixing motar utilizing industrial waste liquid slag to prepare according to claim 1, is characterized in that: described thickening material is the one in Vltra tears, Natvosol and wilkinite.
3. the premixing motar utilizing industrial waste liquid slag to prepare according to claim 1, is characterized in that: described air entrapment agent is sodium lauryl sulphate or Chinese honey locust air entrapment agent.
4. the premixing motar utilizing industrial waste liquid slag to prepare according to claim 1, is characterized in that: described adjustable solidification agent is the one in Sunmorl N 60S, tripoly phosphate sodium STPP and Trisodium Citrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410156506.1A CN103922675B (en) | 2014-04-17 | 2014-04-17 | Ready-mixed plastering mortar prepared from industrial waste liquid slag |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410156506.1A CN103922675B (en) | 2014-04-17 | 2014-04-17 | Ready-mixed plastering mortar prepared from industrial waste liquid slag |
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| Publication Number | Publication Date |
|---|---|
| CN103922675A CN103922675A (en) | 2014-07-16 |
| CN103922675B true CN103922675B (en) | 2015-06-10 |
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|---|---|---|---|
| CN201410156506.1A Expired - Fee Related CN103922675B (en) | 2014-04-17 | 2014-04-17 | Ready-mixed plastering mortar prepared from industrial waste liquid slag |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110627450B (en) * | 2019-10-23 | 2021-06-18 | 冀东水泥重庆混凝土有限公司 | Environment-friendly plastering mortar and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1428306A (en) * | 2001-12-24 | 2003-07-09 | 天津腾发高科技研究所 | Method for preparing mortar for laying bricks by using waste slag produced in power plant |
| CN102815913A (en) * | 2012-08-09 | 2012-12-12 | 江苏尼高科技有限公司 | Dry-mixed pre-mixed mortar prepared by alkali activated slag cement, and preparation method thereof |
-
2014
- 2014-04-17 CN CN201410156506.1A patent/CN103922675B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1428306A (en) * | 2001-12-24 | 2003-07-09 | 天津腾发高科技研究所 | Method for preparing mortar for laying bricks by using waste slag produced in power plant |
| CN102815913A (en) * | 2012-08-09 | 2012-12-12 | 江苏尼高科技有限公司 | Dry-mixed pre-mixed mortar prepared by alkali activated slag cement, and preparation method thereof |
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| CN103922675A (en) | 2014-07-16 |
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Granted publication date: 20150610 Termination date: 20170417 |