CN115286345B - High-strength cementing material containing anti-caking agent, mould-bag concrete, and preparation and application thereof - Google Patents
High-strength cementing material containing anti-caking agent, mould-bag concrete, and preparation and application thereof Download PDFInfo
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- CN115286345B CN115286345B CN202211024266.0A CN202211024266A CN115286345B CN 115286345 B CN115286345 B CN 115286345B CN 202211024266 A CN202211024266 A CN 202211024266A CN 115286345 B CN115286345 B CN 115286345B
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- 239000000463 material Substances 0.000 title claims abstract description 68
- 239000004567 concrete Substances 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000002689 soil Substances 0.000 claims abstract description 39
- 239000004568 cement Substances 0.000 claims abstract description 36
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 28
- 239000010440 gypsum Substances 0.000 claims abstract description 27
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 27
- 239000002994 raw material Substances 0.000 claims abstract description 18
- 239000006227 byproduct Substances 0.000 claims abstract description 17
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 16
- 239000011707 mineral Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 30
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 20
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 11
- 239000004576 sand Substances 0.000 claims description 11
- 239000002893 slag Substances 0.000 claims description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 9
- 239000000654 additive Substances 0.000 claims description 7
- 239000011863 silicon-based powder Substances 0.000 claims description 7
- 230000000996 additive effect Effects 0.000 claims description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 6
- 238000011049 filling Methods 0.000 claims description 6
- 239000005995 Aluminium silicate Substances 0.000 claims description 5
- 235000012211 aluminium silicate Nutrition 0.000 claims description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 5
- 239000010881 fly ash Substances 0.000 claims description 5
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 5
- 239000013335 mesoporous material Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 5
- 239000010453 quartz Substances 0.000 claims description 5
- 229910021487 silica fume Inorganic materials 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000000292 calcium oxide Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 229910021536 Zeolite Inorganic materials 0.000 claims description 2
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 2
- 239000011737 fluorine Substances 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 239000000395 magnesium oxide Substances 0.000 claims description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 239000011574 phosphorus Substances 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 239000010457 zeolite Substances 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 claims 10
- 239000011230 binding agent Substances 0.000 claims 1
- 239000003292 glue Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 9
- 235000010755 mineral Nutrition 0.000 description 9
- 238000012360 testing method Methods 0.000 description 8
- 239000002910 solid waste Substances 0.000 description 7
- 238000001723 curing Methods 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 235000012255 calcium oxide Nutrition 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 239000003570 air Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000005909 Kieselgur Substances 0.000 description 1
- 239000012615 aggregate Substances 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000003006 anti-agglomeration agent Substances 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000009877 shengmai Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—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
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/047—Zeolites
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/141—Slags
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/141—Slags
- C04B18/142—Steelmaking slags, converter slags
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/141—Slags
- C04B18/145—Phosphorus slags
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/146—Silica fume
-
- 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
-
- 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
- C04B28/143—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 phosphogypsum
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
- E02B3/066—Quays
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
- E02B3/122—Flexible prefabricated covering elements, e.g. mats, strips
- E02B3/123—Flexible prefabricated covering elements, e.g. mats, strips mainly consisting of stone, concrete or similar stony material
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/18—Reclamation of land from water or marshes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/02—Restraining of open water
- E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
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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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Combustion & Propulsion (AREA)
- Revetment (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to the technical field of cementing materials, in particular to a high-strength cementing material for mould bag concrete, a relevant mould bag concrete and preparation and application thereof. The invention reasonably selects cement, industrial by-product gypsum, anti-caking agent and mineral admixture as raw materials, particularly the novel anti-caking agent is adopted as the anti-caking agent, the traditional coarse aggregate and the traditional fine aggregate are not used in the preparation process of the mould bag concrete, the local materials are used, the soil of construction sites is used, and under reasonable formula selection, the unconfined compressive strength of the concrete for 7 days is more than 6.5MPa, and the unconfined compressive strength for 28 days is more than 10 MPa.
Description
Technical Field
The invention relates to the technical field of cementing materials, in particular to a high-strength cementing material for mould bag concrete, a relevant mould bag concrete and preparation and application thereof.
Background
The mould bag concrete is a protective structure formed by using a double-layer high-strength woven chemical fiber fabric to form a continuous (or independent) bag-shaped body as a flexible template and filling the concrete into the bag by a high-pressure pump. Can be used as earth and stone dam, embankment protection, bank protection and bottom protection of river, lake and coast. The thickness and shape of the grass-roots are designed according to the requirements, for example, drainage filtering points can be arranged to drain accumulated water in a slope, the units are connected in a hinge mode to adapt to uneven settlement of the slope, and turf is planted in a lattice mode to improve the environment. The method has the characteristics of flexible design, convenient construction, reliable quality, underwater construction without constructing a cofferdam and the like.
The existing mould-bag concrete is generally prepared from coarse aggregate, fine aggregate, cement and additives (such as water reducer, coagulant, air entraining agent and plastic retention agent) as raw materials, and the formula is based on the traditional concrete formula thought. However, the formula cement has large consumption and strong dependence on coarse aggregate and fine aggregate resources. At present, the price of cement is continuously increased to approximately 800 yuan/ton, coarse aggregate resources such as yellow sand, stones and the like are in shortage, and the raw material supply problem is becoming severe.
At present, various solid wastes are tried to be added into a mould bag concrete formula, for example, CN106904916A discloses mould bag solidified soil for sea-fill cofferdam, a preparation method and an application method thereof, and the mould bag solidified soil in the patent is prepared by taking waste mud, a composite flocculant, a mud structural agent and biomass fibers as raw materials. The waste slurry is formed in the slurry shield tunneling process of the earth excavation tunnel engineering or the slurry formed in the pile foundation engineering and the underground continuous wall engineering construction, and the solid waste can be effectively utilized, but in order to utilize the waste slurry, the waste slurry is required to be temporarily stored, and the waste slurry is required to be transported to a construction site during use, so that the cost is increased by increasing the storage and transportation ring joints, and the operation is inconvenient. In addition, it also requires the use of composite flocculants, mud structurants and biomass fibers, which are relatively complex in composition.
CN101456705A discloses a hydraulic mould bag concrete using industrial solid waste, which is prepared by five procedures of coarse aggregate, fine aggregate, cementing material, reinforcing fiber and water through stirring, mixing and filling into mould bags. The coarse aggregate is steel slag or tailings, the fine aggregate is tailing sand or fly ash coarse slag or river sand, the traditional mould bag concrete formula thought is still adopted, coarse aggregate and fine aggregate are needed, and the coarse aggregate and the fine aggregate cannot be obtained locally. For the river bank dike, river sand/river sand can be obtained locally, but the problem of increasingly exhausting river sand/river sand resources is also faced.
CN105130293a discloses a method for preparing novel ecological bank protection material, the raw materials comprise 129-133 parts of water, 206-213 parts of cement, 52-53 parts of fly ash, 647-653 parts of sand, 1330-1342 parts of stone, 2.06-2.13 parts of water reducing agent and 0.015-0.016 part of air entraining agent, and the materials suitable for river bank slope protection are prepared by using silt and water in river channels as raw materials and assisting with materials such as broken stone or coarse sand and cement. Although a certain amount of fly ash solid waste is added in the patent, coarse aggregate and fine aggregate are required to be used, and raw material acquisition is still limited.
CN106242482a discloses a high-fluidity hydraulic filling sea mud anti-seepage curing material and a preparation method thereof, and the material consists of a component A and a component B: the component A consists of the following components: 30-60 parts of active inorganic mineral; 10-30 parts of cementing material; 10-20 parts of industrial byproduct gypsum; 5-12 parts of instant water glass; 2-5 parts of quicklime; 1-3 parts of stabilizer; each component in the component A is in a finely ground powder form, and the water content is less than or equal to 1%. The inorganic mineral contains solid wastes such as steel slag, slag and the like, and industrial byproduct gypsum is added, but the water content of all raw materials is strictly controlled.
In view of the above, conventional concrete in form bags requires a large amount of coarse aggregate, fine aggregate and cement, and although there have been studies on the addition of reinforcing wastes, the addition of coarse aggregate and fine aggregate is still required in many cases, and thus, the materials cannot be obtained in situ sufficiently. In addition, the control of the water content of the raw material requires a step such as drying, and the energy consumption is large.
Disclosure of Invention
In view of the above, on the one hand, the invention aims to provide a cementing material, in particular to a high-strength cementing material for mould bag concrete, which can ensure the strength of the material while mixing solid waste and reducing the cement dosage through reasonably selecting raw materials, and particularly, the cementing material can be particularly suitable for being combined with shoreside soil to prepare the mould bag concrete meeting engineering requirements of slope protection, bank protection, dyke fixing, sea filling, cofferdam, field building and the like.
In another aspect, the present invention is directed to a form concrete which does not use conventional coarse aggregate and fine aggregate and greatly reduces the amount of cement used.
In the use scenes of slope protection, bank protection, dyke fixation and the like of rivers, lakes and seas, the soil resources on the bank side almost do not need to be mined, transported and stored, and can be used along with digging. However, if the coarse aggregate and the fine aggregate are replaced with soil on the shore side, the strength tends to be greatly reduced. Therefore, the invention aims to enable the local materials to be obtained when the mould bag concrete is prepared through reasonable formulation, and the soil of the construction site is directly used as the raw material.
In order to achieve the above purpose, in one aspect, the present invention provides the following technical solutions:
a cementing material for mould-bag concrete, which comprises cement, industrial by-product gypsum, an anti-caking agent and a mineral additive; wherein the anti-caking agent only comprises a dispersing component and does not comprise a functional component, and the dispersing component is an inert component and does not react with water; the functional component is a water reactive component.
For performance, the cement comprises the following raw materials in percentage by weight: 15-30% of cement, 20-35% of industrial byproduct gypsum, 10-20% of anti-caking agent and 35-45% of mineral additive. The contents according to the invention are all percentages by weight, unless otherwise specified, and the contents of the individual components add up to 100%.
In one embodiment, the cement is divided into a material a and a material B, wherein the material a comprises cement, mineral admixture; the material B contains industrial by-product gypsum and anti-caking agent. Further, the mass ratio of the material A to the material B is 3:1 to 1:2, preferably 2:1 to 1.2:1, and most preferably 1.5:1.
Further, the mineral additive is selected from one or more of copper slag powder, phosphorus slag powder, fly ash, steel slag, natural zeolite and silica fume, and mineral powder is preferred. The industrial byproduct gypsum is selected from one or more of desulfurized gypsum, phosphogypsum, titanium gypsum, fluorine gypsum, citric acid gypsum and salt gypsum.
Further, the anti-caking agent only comprises a dispersing component and does not comprise a functional component, wherein the dispersing component is an inert component and does not react with water; the functional component is a water reactive component. Further, the anti-caking agent according to the present invention does not comprise free calcium oxide and free magnesium oxide.
In one embodiment, the dispersing component is selected from one or more of a lightweight porous material, a mesoporous material. Further, the lightweight porous material is selected from diatomaceous earth. The mesoporous material is selected from mesoporous carbon or mesoporous silicon. Further, the fineness of the lightweight porous material is 500 mesh or more, preferably 600 mesh, 800 mesh, 900 mesh or 1000 mesh or more. The fineness of the mesoporous material is more than 500 meshes, preferably more than 600 meshes, 800 meshes, 900 meshes or 1000 meshes.
In one embodiment, the dispersing component is selected from one or more of quartz powder, bentonite, kaolin, heavy calcium carbonate, light calcium carbonate, and silica fume. The above components of the present invention may be prepared by themselves or may be obtained from commercial sources, such as by the chemical industry of the ridge, ke Mi Ou, guo Yao, shengmai, etc.
Further, the fineness of the dispersed component is 200 mesh or more, preferably 300 mesh or more. The preferred fineness is not exactly the same because of the differences in physical properties of the individual dispersed components. For example, the fineness of the quartz powder is 400 mesh or more, preferably 500 mesh, 600 mesh or 800 mesh or more. For light calcium carbonate, the fineness is more than 200 meshes, preferably more than 300 meshes. The fineness of the heavy calcium carbonate is more than 300 meshes, preferably more than 400 meshes. For kaolin, the fineness is above 600 meshes, preferably above 800 meshes, 900 meshes or 1000 meshes. The fineness of the micro silicon powder is more than 500 meshes, preferably more than 800 meshes.
In one embodiment, a method of making a cementitious material is provided comprising the steps of: (1) Premixing industrial byproduct gypsum and an anti-caking agent to obtain a premix; (2) mixing the premix with cement and mineral admixture.
In another embodiment, a method of making a cementitious material is provided comprising the steps of: (1) mixing cement and mineral admixture to obtain a material A; (2) Premixing industrial byproduct gypsum and an anti-caking agent to obtain a material B; (3) mixing the material A and the material B.
The invention also relates to the use of the above cement, i.e. for the preparation of mould-bag concrete.
The invention also relates to a mould bag concrete which comprises the cementing material, soil and water. The cement is described in detail above, and will not be described again here.
Of course, if the industrial by-product gypsum used is free of water, an anti-agglomerating agent may not be used, in which case the form concrete contains cement, soil, water; wherein the cementing material comprises cementing material, soil and water; wherein the cementing material comprises the following raw materials in percentage by weight: 15-30% of cement, 20-35% of industrial byproduct gypsum and 35-45% of mineral additive. The total content of each component is 100%. That is, the aforementioned embodiment can be selected and used when the water content of the industrial by-product gypsum is low, for example, 1% or less, or the use of the anti-caking agent can be completely omitted, and only the amounts of the components need to be appropriately adjusted.
Further, the available local soil is advantageous to the cost, and the construction site soil is specifically selected; preferably shoreside earth. Further preferably coastal earth, lake coastal earth, river coastal earth. For example, mould bag concrete is manufactured at the coast, and the soil at the coast is directly used as solidified soil; for example, mould bag concrete is manufactured at the river side, and then the soil at the river side is directly used as solidified soil; for example, mould bag concrete is manufactured at the lake side, and then the soil at the lake side is directly used as solidified soil; and so on.
Further, the soil moisture content is 10% -40%, preferably 15% -30%, and further preferably 20% -25%. Further, the weight ratio of the soil, the cementing material and the water is as follows: cementing material: water=1400-1800:400-800:650-800, at which ratio it is advantageous to improve the concrete performance of the bag.
Further, the amount of the cementing material is 35% -50% of the soil, so that sufficient strength can be ensured. Preferably 36%, 37%, 38%, 39% or more; preferably 49%, 48%, 47%, 46%, 45% or less; most preferably 40%.
Preferably, the form concrete should meet one or more of the following conditions: (1) the mobility of the sand is 130-160mm; (2) the expansion degree is not less than 500mm; (3) curing time is 15-30h; (4) The 7-day unconfined compressive strength is above 6.5MPa, preferably above 7.5MPa, further preferably above 8.5MPa, such as up to 11MPa; (5) The 28-day unconfined compressive strength is more than 10MPa, preferably more than 15 MPa. Most preferably, each condition is satisfied.
The invention also provides a preparation method of the mould bag concrete, which specifically comprises the following steps: the raw materials comprising cementing material, construction site soil (such as shoreside soil) and water are stirred and mixed, and are injected into a mould bag. Further, a three-point pumping method is adopted. Further, the mould bags are 10-20 m long, 5-15 m wide and 10-30 cm thick.
The invention provides application of mould bag concrete, which is used in projects such as slope protection, bank protection, dyke fixing, sea filling, cofferdam, field making and the like.
Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following remarkable effects:
(1) Cement, industrial by-product gypsum, anti-caking agent and mineral admixture are used as raw materials, and the formula is suitable for preparing cementing materials of mould-bag concrete. The cementing material does not need to use coarse aggregate and fine aggregate.
(2) The cement content in the cementing material is reduced to below 30%, and the solid waste is added, so that the requirement on the performance in the subsequent application can be met.
(3) The preparation process of the mould bag concrete adopts local materials, uses the soil of a construction site, and can ensure that the 28-day unconfined compressive strength of the concrete is more than 10MPa and the expansion degree is not less than 500mm under the selection of a reasonable formula, thereby meeting the requirements of various performances of the mould bag concrete.
(4) For the problem that the raw materials with higher water content are easy to generate agglomeration to influence the performance, the novel anti-agglomeration agent is innovatively added, so that the anti-agglomeration problem is well solved.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
Example 1:
And (5) a cementing material formula selection experiment.
Anti-caking agent: only inert components, and no functional components; is prepared by uniformly mixing 70% of micro silicon powder (800 meshes) and 30% of light calcium carbonate (1000 meshes).
And (3) molding, curing, testing the compressive strength of 7d and 28d and screening the cementing material proportion according to a cement mortar strength test method (I SO method) GB/T17671-2021.
Table 1 compressive strength test of different cement formulations
Example 2:
And (3) selecting an experiment of the mixing amount of the curing agent. The test method refers to the "JGJ/T70-2009 building mortar basic performance test method" for testing fluidity, curing time and compressive strength. Anti-caking agent: uniformly mixing 70% of micro silicon powder (800 meshes) and 30% of light calcium carbonate (1000 meshes) to obtain the anti-caking agent.
The cementing material comprises the following components:
Table 2 compressive strength test of different cement loadings
From the test results, the inert component (without adding calcium oxide) is used alone, the cement has good effect when the mixing amount of the cementing material is 30%, the mixing amount is improved, and the effect is further improved.
Example 3:
And (5) optimizing the mould bag concrete formula. The test method refers to the "JGJ/T70-2009 building mortar basic performance test method" for testing fluidity, curing time and compressive strength. The water content of the river bank soil is 19%. From the test results, the amount of water should not be too much, otherwise the 28d compressive strength is affected. The amount of water is preferably 650kg to 800 kg.
Table 3 compression strength test of mould bag concrete formulation
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (22)
1. The high-strength cementing material for the mould bag concrete is characterized by comprising the following raw materials in percentage by weight: 15-30% of cement, 20-35% of industrial byproduct gypsum, 10-20% of anti-caking agent and 35-45% of mineral additive; wherein the anti-caking agent comprises only a dispersing component and no functional component; the dispersing component is an inert component and does not react with water; the functional component is a water reactive component;
the anti-caking agent does not contain free calcium oxide and free magnesium oxide; the dispersion component is a substance insoluble or poorly soluble in water, wherein the insoluble or poorly soluble in water means that the solubility in water is less than 0.01g/100g at 20 ℃;
The dispersion component is one or more of a light porous material and a mesoporous material, the light porous material is diatomite, and the mesoporous material is mesoporous carbon or mesoporous silicon; or the dispersion component is one or more of quartz powder, kaolin, heavy calcium carbonate, light calcium carbonate and silica fume;
The cementing material is divided into a material A and a material B, wherein the material A comprises cement and mineral admixture; the material B contains industrial by-product gypsum and anti-caking agent.
2. The cement of claim 1, wherein the mass ratio of the a-material to the B-material is 3:1 to 1:2.
3. The cement of claim 2, wherein the mass ratio of the a-material to the B-material is from 2:1 to 1.2:1.
4. The cement of claim 1, wherein the cement meets one or more of the following conditions:
(1) The mineral additive is one or more selected from copper slag powder, phosphorus slag powder, fly ash, steel slag, natural zeolite and silica fume;
(2) The industrial byproduct gypsum is selected from one or more of desulfurized gypsum, phosphogypsum, titanium gypsum, fluorine gypsum, citric acid gypsum and salt gypsum.
5. The cement of claim 1, wherein the dispersing component is selected from the group consisting of a mixture of microsilica and light calcium carbonate.
6. The cementing material according to claim 1, wherein the dispersing component is quartz powder with fineness of more than 400 meshes;
or the dispersion component is micro silicon powder with fineness of more than 500 meshes;
Or the dispersion component is kaolin with fineness of more than 800 meshes;
or the dispersed component is heavy calcium carbonate with fineness of more than 300 meshes;
or the dispersion component is light calcium carbonate with fineness of more than 200 meshes;
or the dispersed component is diatomite with fineness of more than 500 meshes;
or the dispersion components are 50-70% of micro silicon powder and 50-30% of light calcium carbonate, wherein the fineness of the micro silicon powder and the light calcium carbonate is above 500 meshes.
7. The cementing material according to claim 6, wherein the dispersing component is quartz powder with fineness of more than 600 meshes;
or the dispersion component is micro silicon powder with the fineness of more than 800 meshes;
Or, the dispersion component is kaolin with fineness of more than 1000 meshes;
or the dispersed component is heavy calcium carbonate with fineness of more than 400 meshes;
or the dispersion component is light calcium carbonate with fineness of more than 300 meshes;
or the dispersed component is diatomite with fineness of more than 800 meshes.
8. A method of making a cement according to any one of claims 1 to 7, comprising the steps of: (1) mixing cement and mineral admixture to obtain a material A; (2) Premixing industrial byproduct gypsum and an anti-caking agent to obtain a material B; (3) mixing the material A and the material B.
9. Use of the cement of any one of claims 1-7 for form-bag concrete.
10. A mould-bag concrete, characterized in that it comprises the cement according to any one of claims 1-7, soil, water.
11. The modular bag concrete of claim 10, wherein the soil is a job site soil.
12. The modular bag concrete of claim 11, wherein the job site soil is one or more of coastal soil, lake coastal soil, river coastal soil, and river coastal soil.
13. The modular bag concrete of claim 10, wherein the soil moisture content is 10% -40%.
14. The modular bag concrete of claim 13, wherein the soil moisture content is 15% -30%.
15. The modular bag concrete of claim 13, wherein the soil moisture content is 20% -25%.
16. The modular bag concrete of claim 10, wherein the binder is present in an amount of 35% to 50% of the soil.
17. The mould bag concrete according to claim 10, wherein the soil, the cementing material and the water are added in the following weight ratio: cementing material: water=1400-1800:400-800:650-800.
18. The modular bag concrete of claim 10, wherein the concrete meets one or more of the following conditions:
(1) The mobility of the glue sand is 130-160mm;
(2) The slump expansion degree is not less than 500mm;
(3) Curing time is 15-30h;
(4) The unconfined compressive strength is above 6.5MPa in 7 days;
(5) The unconfined compressive strength is more than 10MPa in 28 days.
19. A method of preparing a mould-bag concrete according to any one of claims 10 to 18, characterized in that: the raw materials comprising cementing material, soil and water are stirred and mixed, and are injected into a mould bag.
20. The method for preparing the mould-bag concrete according to claim 19, wherein: a three-point pumping method is adopted.
21. The method for preparing the mould-bag concrete according to claim 19, wherein: the mould bag is 10-20 m long, 5-15 m wide and 10-30 cm thick.
22. Use of a mould-bag concrete according to any one of claims 10 to 18, characterized in that: the method is used for slope protection, bank protection, dyke fixing, sea filling, cofferdam and field making engineering.
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