CN117185737A - Integrated anti-cracking bonding-free wear-resistant terrace material, wear-resistant terrace and construction method - Google Patents
Integrated anti-cracking bonding-free wear-resistant terrace material, wear-resistant terrace and construction method Download PDFInfo
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- 239000003795 chemical substances by application Substances 0.000 claims abstract description 84
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 71
- 239000010959 steel Substances 0.000 claims abstract description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000000835 fiber Substances 0.000 claims abstract description 58
- 239000004568 cement Substances 0.000 claims abstract description 38
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 35
- 239000011325 microbead Substances 0.000 claims abstract description 32
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 29
- 239000010703 silicon Substances 0.000 claims abstract description 29
- 239000004575 stone Substances 0.000 claims abstract description 29
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 28
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 28
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 28
- 235000011116 calcium hydroxide Nutrition 0.000 claims abstract description 28
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 28
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 22
- 235000010755 mineral Nutrition 0.000 claims abstract description 22
- 239000011707 mineral Substances 0.000 claims abstract description 22
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 20
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 20
- 239000002562 thickening agent Substances 0.000 claims abstract description 20
- 239000004567 concrete Substances 0.000 claims abstract description 16
- 239000002002 slurry Substances 0.000 claims description 71
- 238000000227 grinding Methods 0.000 claims description 26
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- 239000002245 particle Substances 0.000 claims description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 20
- 239000002893 slag Substances 0.000 claims description 11
- 230000007480 spreading Effects 0.000 claims description 11
- 238000003892 spreading Methods 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 9
- 239000013530 defoamer Substances 0.000 claims description 9
- 239000010881 fly ash Substances 0.000 claims description 9
- 239000010453 quartz Substances 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 239000011398 Portland cement Substances 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 7
- BLOIXGFLXPCOGW-UHFFFAOYSA-N [Ti].[Sn] Chemical compound [Ti].[Sn] BLOIXGFLXPCOGW-UHFFFAOYSA-N 0.000 claims description 7
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 6
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 6
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 3
- 238000007781 pre-processing Methods 0.000 claims description 3
- 239000002518 antifoaming agent Substances 0.000 abstract description 19
- 239000010410 layer Substances 0.000 description 55
- 229920005989 resin Polymers 0.000 description 43
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- 230000000052 comparative effect Effects 0.000 description 21
- 238000013329 compounding Methods 0.000 description 16
- 238000003756 stirring Methods 0.000 description 14
- 239000000292 calcium oxide Substances 0.000 description 9
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 9
- WPJGWJITSIEFRP-UHFFFAOYSA-N 1,3,5-triazine-2,4,6-triamine;hydrate Chemical compound O.NC1=NC(N)=NC(N)=N1 WPJGWJITSIEFRP-UHFFFAOYSA-N 0.000 description 8
- 239000002253 acid Substances 0.000 description 8
- 239000011575 calcium Substances 0.000 description 8
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical group [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 8
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 8
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 8
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 8
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 8
- 239000002480 mineral oil Substances 0.000 description 8
- 235000010446 mineral oil Nutrition 0.000 description 8
- 239000004848 polyfunctional curative Substances 0.000 description 8
- 230000001681 protective effect Effects 0.000 description 8
- 239000001509 sodium citrate Substances 0.000 description 8
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 8
- 235000019832 sodium triphosphate Nutrition 0.000 description 8
- 238000005299 abrasion Methods 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 7
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 7
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 7
- 239000002994 raw material Substances 0.000 description 7
- 238000000926 separation method Methods 0.000 description 7
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 7
- 125000006850 spacer group Chemical group 0.000 description 7
- 239000002699 waste material Substances 0.000 description 7
- 238000010008 shearing Methods 0.000 description 6
- INHCSSUBVCNVSK-UHFFFAOYSA-L lithium sulfate Inorganic materials [Li+].[Li+].[O-]S([O-])(=O)=O INHCSSUBVCNVSK-UHFFFAOYSA-L 0.000 description 5
- RBTVSNLYYIMMKS-UHFFFAOYSA-N tert-butyl 3-aminoazetidine-1-carboxylate;hydrochloride Chemical compound Cl.CC(C)(C)OC(=O)N1CC(N)C1 RBTVSNLYYIMMKS-UHFFFAOYSA-N 0.000 description 5
- CBOCVOKPQGJKKJ-UHFFFAOYSA-L Calcium formate Chemical compound [Ca+2].[O-]C=O.[O-]C=O CBOCVOKPQGJKKJ-UHFFFAOYSA-L 0.000 description 4
- 239000006004 Quartz sand Substances 0.000 description 4
- 229940044172 calcium formate Drugs 0.000 description 4
- 235000019255 calcium formate Nutrition 0.000 description 4
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- 230000008859 change Effects 0.000 description 4
- 239000008119 colloidal silica Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
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- 229910000514 dolomite Inorganic materials 0.000 description 3
- 239000010459 dolomite Substances 0.000 description 3
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- 239000003245 coal Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- 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
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The application discloses an integrally formed anti-cracking bonding-free wear-resistant terrace material, a wear-resistant terrace and a construction method, wherein the wear-resistant terrace material comprises powder, steel fiber and water, and the dosage ratio of the steel fiber to the water is 1:0.05 to 0.15:0.08 to 0.1; the powder comprises the following components in percentage by mass: 25 to 32 percent of cement, 0 to 10 percent of stone powder, 4.5 to 10 percent of mineral powder, 3 to 5 percent of microbeads, 5 to 8 percent of anti-cracking agent, 0.1 to 0.4 percent of slaked lime, 0.2 to 0.8 percent of sodium sulfate, 38 to 56 percent of high-silicon aggregate, 0.2 to 0.4 percent of retarder, 0.15 to 0.6 percent of water reducer, 0.01 to 0.02 percent of thickener, 0.07 to 0.14 percent of defoaming agent, 0.1 to 0.25 percent of strength accelerator and 0.02 to 0.04 percent of water retention agent. The wear-resistant terrace material has excellent construction performance, mechanical property, crack resistance and wear resistance; the wear-resistant terrace material can realize unbonded construction with old concrete ground, and the construction method is simple and efficient.
Description
Technical Field
The application belongs to the technical field of wear-resistant floors, and particularly relates to an integrally formed anti-cracking bonding-free wear-resistant floor material, a wear-resistant floor and a construction method.
Background
Most of the current construction methods of the wear-resistant terrace are as follows: firstly, paving a concrete base layer, throwing wear-resistant powder on the surface of the concrete base layer in the initial setting stage, and then processing by a special means to form a whole with the wear-resistant powder. But the construction performance, mechanical property, wear resistance and the like of the wear-resistant terrace can be further improved.
For the problem of cracks of old concrete floors, the repair of the cracks is always a construction difficulty and pain point. The prior method for solving the problem of the ground cracks of the old concrete mainly comprises the following steps: (1) Repairing the crack by using a pouring repair material, and then constructing a decorative material; (2) And pouring new concrete layer on the surface of the old concrete floor again. The method (1) can only shorten the crack length and/or reduce the crack width, and cannot stop the reflection of the crack to the surface layer. The method (2) has better repairing effect, but the repairing construction is more complicated and the construction efficiency is low.
Disclosure of Invention
The application aims to provide an integrally formed anti-cracking bonding-free wear-resistant terrace material, a wear-resistant terrace and a construction method, so as to solve the problems in the background art.
In order to achieve the above purpose, the application provides an integrally formed anti-cracking bonding-free wear-resistant terrace material, which comprises powder, steel fiber and water, wherein the dosage ratio of the powder to the steel fiber to the water is 1:0.05 to 0.15:0.08 to 0.1; the powder comprises the following components in percentage by mass:
25 to 32 percent of cement, 0 to 10 percent of stone powder, 4.5 to 10 percent of mineral powder, 3 to 5 percent of microbeads, 5 to 8 percent of anticracking agent, 0.1 to 0.4 percent of slaked lime, 0.2 to 0.8 percent of sodium sulfate, 38 to 56 percent of high-silicon aggregate and slow release0.2 to 0.4 percent of coagulant, 0.15 to 0.6 percent of water reducing agent, 0.01 to 0.02 percent of thickening agent, 0.07 to 0.14 percent of defoamer, 0.1 to 0.25 percent of strength accelerator and 0.02 to 0.04 percent of water retention agent; the high-silicon aggregate is SiO 2 The mass content of the natural aggregate or the crushed aggregate is more than 95 percent, and the fineness modulus is 2.3-3.0.
Preferably, the powder, steel fiber and water are used in a ratio of 1:0.1 to 0.15:0.08 to 0.1.
In some embodiments, the steel fibers have a length of 8 to 12mm, a diameter of 0.18 to 0.22mm, and a tensile strength of greater than 1.15X10 3 MPa。
Preferably, the cement is selected from Portland cement or specialty cement having a strength grade of 42.5 or more.
Preferably, the stone powder is ground quartz stone powder with fineness of 300-325 meshes; and the specific surface area of the mineral powder is not less than 450m 2 /kg of ground slag powder; and the apparent density of the microbeads is not less than 2.5g/cm 3 And the particle size range of the fly ash microbeads is 0.4-5 mu m.
The application also provides an integrally formed anti-cracking bonding-free wear-resistant terrace, which comprises a concrete base layer, a wear-resistant layer arranged on the concrete base layer and a hardening agent layer arranged on the wear-resistant layer; the concrete base material is the wear-resistant terrace material.
Preferably, the wear-resistant aggregate of the wear-resistant layer is selected from one or more of tin-titanium alloy aggregate, copper tailing aggregate and silicon carbide wear-resistant aggregate with the particle size of 10-20 meshes.
The application also provides a construction method of the integrally formed anti-cracking bonding-free wear-resistant terrace, which comprises the following steps:
preparing the wear-resistant terrace material into slurry; preprocessing the original ground base layer, including cleaning the original ground base layer and repairing pits; fully paving an isolating film on the surface of the pretreated original ground base layer, and arranging anchors at intervals at the boundary; spreading the slurry on the isolating film; before the slurry is completely solidified, the surface of the slurry is thrown with wear-resistant aggregate; before the slurry is completely solidified, the surface of the slurry is thrown with wear-resistant aggregate; and (5) grinding, hardening and polishing the surface in sequence after the slurry is hardened.
Preferably, the top of the anchor is provided with a curved connector.
Preferably, the wear-resistant aggregate is selected from one or more of tin-titanium alloy aggregate, copper tailing aggregate and silicon carbide wear-resistant aggregate with the particle size of 10-20 meshes.
Compared with the prior art, the application has the following advantages and beneficial effects:
(1) The application adopts reasonable cement-cement ratio, and specific dosage of cement, steel fiber and high-silicon aggregate, wherein the steel fiber and the high-silicon aggregate also produce synergistic effect, thereby obtaining excellent construction performance, mechanical property, crack resistance and wear resistance.
(2) The wear-resistant terrace material can be used for integrally forming the wear-resistant terrace, can be applied to repairing the old concrete ground, can realize non-bonding construction with the old concrete ground, and has simple and convenient construction method and high efficiency.
Detailed Description
The present application will be described in further detail below in order to make the objects, technical solutions and advantageous effects of the present application more apparent.
The application provides an integrally formed anti-cracking bonding-free wear-resistant terrace material, which comprises powder, steel fiber and water, wherein the dosage ratio of the steel fiber to the water is 1: 0.05-0.15:0.08-0.1; wherein the powder comprises the following components in percentage by mass: 25 to 32 percent of cement, 0 to 10 percent of stone powder, 4.5 to 10 percent of mineral powder, 3 to 5 percent of microbeads, 5 to 8 percent of anticracking agent, 0.1 to 0.4 percent of slaked lime, 0.2 to 0.8 percent of sodium sulfate, 38 to 56 percent of high-silicon aggregate, 0.2 to 0.4 percent of retarder, 0.15 to 0.6 percent of water reducer, 0.01 to 0.02 percent of thickener, 0.07 to 0.14 percent of defoaming agent, 0.1 to 0.25 percent of strength accelerator and 0.02 to 0.04 percent of water retention agent; wherein the high silicon aggregate is SiO 2 Natural aggregate or crushed aggregate with mass content more than 95% and fineness modulus of 2.3-3.0; broken aggregate here refers to aggregate after natural aggregate has been broken.
The integral forming anti-cracking bonding-free wear-resistant terrace material is preferably prepared from the following components: comprises powder, steel fiber and water, wherein the dosage ratio of the powder to the steel fiber to the water is 1: 0.1-0.15:0.08-0.1; wherein the powder comprises the following components in percentage by mass: 29 to 32 percent of cement, 5 to 10 percent of stone powder, 4.5 to 7.1 percent of mineral powder, 4 to 5 percent of microbeads, 6 to 8 percent of anticracking agent, 0.3 to 0.4 percent of slaked lime, 0.5 to 0.8 percent of sodium sulfate, 38 to 47 percent of high-silicon aggregate, 0.32 to 0.4 percent of retarder, 0.42 to 0.6 percent of water reducer, 0.01 to 0.02 percent of thickener, 0.11 to 0.14 percent of defoaming agent, 0.1 to 0.21 percent of accelerator and 0.03 to 0.04 percent of water retention agent.
In the embodiment of the application, the steel fiber has the selected length of 8-12 mm, the diameter of 0.18-0.22 mm and the tensile strength of 1.15 multiplied by 10 3 MPa～2.85×10 3 The steel fiber of MPa is preferably 10-12 mm long, 0.2-0.22 mm diameter, and 2.15X10 tensile strength 3 MPa～2.85×10 3 Steel fibers in MPa. The cement is selected from Portland cement or special cement, preferably Portland cement or special cement with strength grade of 42.5 or above. The stone powder is selected from ground quartz stone powder, preferably with fineness of 300-325 meshes. The mineral powder is selected to be ground into slag powder, and the specific surface area is preferably not less than 450m 2 /kg of ground slag powder. The microbeads are spherical fly ash microbeads, preferably with apparent density not less than 2.5g/cm 3 And the particle size range is 0.4-5 μm. The anticracking agent is preferably calcium oxide expanding agent for high performance concrete, and the fineness is preferably 300-400 mesh. Slaked lime preferably Ca (OH) 2 The mass content is more than 90 percent, and the fineness is between 300 and 325 meshes of slaked lime. The sodium sulfate is preferably anhydrous sodium sulfate with fineness of 80 meshes to 100 meshes. The retarder is prepared by compounding sodium tripolyphosphate and sodium citrate according to a mass ratio of 1:1. The water reducer is prepared by compounding melamine water reducer and slow-release polycarboxylic acid water reducer according to a mass ratio of 3:1. The thickener adopts hydroxypropyl methyl cellulose ether with the viscosity of 500-1000 mPa.s. The defoaming agent adopts mineral oil defoaming agent. The strengthening agent adopts calcium formate or lithium sulfate. The water-retaining agent adopts water-absorbing resin with fineness of 50 meshes to 100 meshes.
The application provides a construction method of an integrally formed anti-cracking bonding-free wear-resistant terrace, which comprises the following steps:
(1) Mixing the powder, steel fibers and water in proportion to obtain slurry for construction;
(2) Before construction, preprocessing the original ground base layer, including cleaning the original ground base layer and repairing pits;
(3) Fully paving an isolating film on the surface of the pretreated original ground base layer, arranging anchors at equal intervals at the boundary, wherein the thickness of the isolating film is preferably 0.1-0.2 mm, and the isolating film is optionally but not limited to a PE film;
(4) Spreading the slurry on the isolating film, wherein the spreading thickness is 1.5-2 times of the length of the ground exposed by the anchor nails; the isolating film is used for isolating the original ground base layer and the slurry, and is helpful for resisting impact load from the surface of the terrace without being influenced by constraint stress generated by foundation deformation;
(5) Before the slurry is completely solidified, the surface of the slurry is sprayed with wear-resistant aggregate to form a wear-resistant layer, and the wear-resistant layer is used for improving wear resistance and prolonging the service life of a wear-resistant terrace; in the embodiment of the application, the wear-resistant aggregate is selected from one or more of tin-titanium alloy aggregate, copper tailing aggregate, silicon carbide wear-resistant aggregate and other wear-resistant aggregates with the particle size of 10-20 meshes;
(6) And (5) after the slurry is hardened, grinding, hardening and polishing the surface in sequence to obtain the wear-resistant terrace. According to the embodiment of the application, the floor grinding machine is adopted for grinding the wear-resistant aggregate on the surface, the hardening agent is used for coating the surface to obtain the hardening agent layer with a protective effect, and then the hardening agent layer is polished.
Several specific examples and comparative examples will be provided below.
Example 1
In the wear-resistant terrace material, the dosage ratio of the powder, the steel fiber and the water is 1:0.05:0.08, wherein the powder comprises the following components in percentage by mass: 25% of cement, 10% of mineral powder, 3% of microbeads, 5% of anti-cracking agent, 0.1% of slaked lime, 0.2% of sodium sulfate, 56% of high-silicon aggregate, 0.2% of retarder, 0.15% of water reducer, 0.01% of thickener, 0.07% of defoamer, 0.25% of accelerator and 0.02% of water retention agent.
In the embodiment, the cement adopts the anti-cracking cement with the strength grade of 62.5; the specific surface area of the mineral powder is 450m 2 /kg of ground slag powder; the apparent density of the microbeads is 2.5g/cm 3 Spherical pulverized coal having particle diameter ranging from 0.4 μm to 5 μmAsh microbeads; the anticracking agent adopts calcium oxide expanding agent with fineness of 300-400 meshes; slaked lime adopts Ca (OH) 2 Slaked lime with the content of more than 90 percent and the fineness of 300 meshes-325 meshes; the sodium sulfate adopts anhydrous sodium sulfate with fineness of 80 meshes to 100 meshes; siO is adopted as the high silicon aggregate 2 Natural yellow sand with mass content more than 95% and fineness modulus 2.3; the retarder is prepared by compounding sodium tripolyphosphate and sodium citrate according to a mass ratio of 1:1; the water reducer is prepared by compounding a melamine water reducer and a slow-release polycarboxylic acid water reducer according to a mass ratio of 3:1; the thickener adopts hydroxypropyl methyl cellulose ether with the viscosity of 500 mPa.s; the defoaming agent adopts mineral oil defoaming agent; the strength accelerator adopts lithium sulfate; the water-retaining agent adopts sodium polyacrylate type water-absorbing resin with fineness of 50-100 meshes, and the water absorption multiple can reach 12 times.
The construction method of the wear-resistant terrace of the embodiment comprises the following steps:
premixing the raw material components to obtain powder, adding water in proportion on site, stirring for 2min, adding steel fibers, and stirring for 0.5min again to obtain the slurry for paving construction. And pre-treating the original ground base layer before construction, including cleaning the original ground base layer and repairing the pits. The surface of the original ground base layer after pretreatment was fully covered with a spacer film while anchors were driven at 0.5m intervals at the boundary. Spreading the slurry on a separation film, and throwing wear-resistant aggregate on the surface of the slurry before the slurry is not solidified completely. And (3) after the slurry is hardened for 24 hours, firstly grinding the wear-resistant aggregate on the surface by using a terrace grinder, then smearing the surface with a hardening agent to obtain a hardening agent layer with a protective effect, and finally polishing the hardening agent layer to obtain the wear-resistant terrace.
The steel fibers used in this example had a length of 8mm, a diameter of 0.18mm and a tensile strength of 1.15X10 3 Carrying out rust removal treatment on the waste steel wires under the pressure of MPa, and shearing to obtain the steel wires; the isolating film is a PE film with the thickness of 0.1 mm; the specification phi of the anchor is 3.5 multiplied by 32mm, the top of the anchor is provided with a bent or arc connecting piece, and a suspended ceiling integrated nail is specifically adopted to increase the connecting force of the slurry and the anchor; the wear-resistant aggregate is selected from tin-titanium alloy aggregate with the particle size of 10-20 meshes; grinding and polishing are as follows: grinding and polishing with 50# resin abrasive disc, 100# resin abrasive disc, 200# resin abrasive disc, 400# resin abrasive disc and 800# resin abrasive discThe method comprises the steps of carrying out a first treatment on the surface of the The hardening agent adopts a lithium-based hardening agent.
Example 2
In the wear-resistant terrace material, the dosage ratio of the powder, the steel fiber and the water is 1:0.1:0.08, wherein the powder comprises the following components in percentage by mass: 29% of cement, 5% of stone powder, 7.1% of mineral powder, 4% of microbeads, 6% of anti-cracking agent, 0.3% of slaked lime, 0.5% of sodium sulfate, 47% of high-silicon aggregate, 0.32% of retarder, 0.42% of water reducer, 0.01% of thickener, 0.11% of defoamer, 0.21% of strength accelerator and 0.03% of water retention agent.
In this example, portland cement with a strength grade of 52.5 is used as the cement; the stone powder adopts ground quartz stone powder with fineness of 300 meshes to 325 meshes; the specific surface area of the mineral powder is 450m 2 /kg of ground slag powder; the apparent density of the microbeads is 2.5g/cm 3 Spherical fly ash microbeads with the particle size range of 0.4-5 mu m; the anticracking agent adopts calcium oxide expanding agent with fineness of 300-400 meshes; slaked lime adopts Ca (OH) 2 Slaked lime with the content of more than 90 percent and the fineness of 300 meshes to 325 meshes; the sodium sulfate adopts anhydrous sodium sulfate with fineness of 80 meshes to 100 meshes; siO is adopted as the high silicon aggregate 2 Broken quartz sand with the content of more than 95 percent and the fineness modulus of 2.8; the retarder is prepared by compounding sodium tripolyphosphate and sodium citrate according to a mass ratio of 1:1; the water reducer is prepared by compounding a melamine water reducer and a slow-release polycarboxylic acid water reducer according to a mass ratio of 3:1; the thickener adopts hydroxypropyl methyl cellulose ether with the viscosity of 500 mPa.s; the defoaming agent adopts mineral oil defoaming agent; the strength accelerator adopts calcium formate; the water-retaining agent adopts sodium polyacrylate type water-absorbing resin with fineness of 50-100 meshes, and the water absorption multiple can reach 12 times.
The construction method of the terrace of the embodiment is as follows:
premixing the raw material components to obtain powder, adding water in proportion on site, stirring for 2min, adding steel fibers, and stirring for 1min again to obtain slurry for paving construction. And pre-treating the original ground base layer before construction, including cleaning the original ground base layer and repairing the pits. The surface of the original ground base layer after pretreatment was fully covered with a spacer film while anchors were driven at 0.5m intervals at the boundary. Spreading the slurry on a separation film, and throwing wear-resistant aggregate on the surface of the slurry before the slurry is not solidified completely. And (3) after the slurry is hardened for 24 hours, firstly grinding the wear-resistant aggregate on the surface by using a terrace grinder, then smearing the surface with a hardening agent to obtain a hardening agent layer with a protective effect, and finally polishing the hardening agent layer to obtain the wear-resistant terrace.
The steel fibers used in this example had a length of 10mm, a diameter of 0.20mm and a tensile strength of 2.15X10 3 Carrying out rust removal treatment on the waste steel wires under the pressure of MPa, and shearing to obtain the steel wires; the isolating film is a PE film with the thickness of 0.1 mm; the specification phi of the anchor is 3.5 multiplied by 32mm, the top of the anchor is provided with a bent or arc connecting piece, and a suspended ceiling integrated nail is specifically adopted to increase the connecting force of the slurry and the anchor; the wear-resistant aggregate is copper tailing aggregate with the particle size of 10-20 meshes; grinding and polishing are as follows: sequentially grinding and polishing by using 50# resin abrasive sheets, 100# resin abrasive sheets, 200# resin abrasive sheets, 400# resin abrasive sheets and 800# resin abrasive sheets; the hardener is colloidal silica hardener.
Example 3
In the wear-resistant terrace material, the dosage ratio of the powder, the steel fiber and the water is 1:0.15:0.1, wherein the powder comprises the following components in percentage by mass: 32% of cement, 10% of stone powder, 4.5% of mineral powder, 5% of microbeads, 8% of anti-cracking agent, 0.4% of slaked lime, 0.8% of sodium sulfate, 38% of high-silicon aggregate, 0.4% of retarder, 0.6% of water reducer, 0.02% of thickener, 0.14% of defoamer, 0.1% of strength accelerator and 0.04% of water retention agent.
In the embodiment, the cement adopts sulphoaluminate cement with the strength grade of 42.5; the stone powder adopts ground quartz stone powder with fineness of 300 meshes to 325 meshes; the specific surface area of the mineral powder is 450m 2 /kg of ground slag powder; the apparent density of the microbeads is 2.5g/cm 3 Spherical fly ash microbeads with the particle size range of 0.4-5 mu m; the anticracking agent adopts calcium oxide expanding agent with fineness of 300-400 meshes; slaked lime adopts Ca (OH) 2 Slaked lime with the content of more than 90 percent and the fineness of 300 meshes to 325 meshes; the sodium sulfate adopts anhydrous sodium sulfate with fineness of 80 meshes to 100 meshes; siO is adopted as the high silicon aggregate 2 Broken quartz sand with the content of more than 95 percent and the fineness modulus of 3.0; the retarder is prepared by compounding sodium tripolyphosphate and sodium citrate according to a mass ratio of 1:1; the water reducer is prepared from melamine water reducerThe slow-release polycarboxylic acid water reducer is prepared by compounding according to a mass ratio of 3:1; the thickener adopts hydroxypropyl methyl cellulose ether with the viscosity of 500 mPa.s; the defoaming agent adopts mineral oil defoaming agent; the strength accelerator adopts lithium sulfate; the water-retaining agent adopts sodium polyacrylate type water-absorbing resin with fineness of 50-100 meshes, and the water absorption multiple can reach 12 times.
The construction method of the terrace of the embodiment is as follows:
premixing the raw material components to obtain powder, adding water in proportion on site, stirring for 3min, adding steel fibers, and stirring for 1min again to obtain slurry for paving construction. And pre-treating the original ground base layer before construction, including cleaning the original ground base layer and repairing the pits. The surface of the original ground base layer after pretreatment was fully covered with a spacer film while anchors were driven at 0.5m intervals at the boundary. Spreading the slurry on a separation film, and throwing wear-resistant aggregate on the surface of the slurry before the slurry is not solidified completely. And (3) after the slurry is hardened for 24 hours, firstly grinding the wear-resistant aggregate on the surface by using a terrace grinder, then smearing the surface with a hardening agent to obtain a hardening agent layer with a protective effect, and finally polishing the hardening agent layer to obtain the wear-resistant terrace.
The steel fibers used in this example had a length of 12mm, a diameter of 0.22mm and a tensile strength of 2.85X 10 3 Carrying out rust removal treatment on the waste steel wires under the pressure of MPa, and shearing to obtain the steel wires; the isolating film is a PE film with the thickness of 0.1 mm; the specification phi of the anchor is 3.5 multiplied by 32mm, the top of the anchor is provided with a bent or arc connecting piece, and a suspended ceiling integrated nail is specifically adopted to increase the connecting force of the slurry and the anchor; the wear-resistant aggregate is silicon carbide wear-resistant aggregate with the particle size of 10-20 meshes; grinding and polishing are as follows: sequentially grinding and polishing by using 50# resin abrasive sheets, 100# resin abrasive sheets, 200# resin abrasive sheets, 400# resin abrasive sheets and 800# resin abrasive sheets; the hardening agent adopts a lithium-based hardening agent.
Comparative example 1
In the wear-resistant terrace material, the dosage ratio of the powder, the steel fiber and the water is 1:0.05:0.08, wherein the powder comprises the following components in percentage by mass: 20% of cement, 5% of stone powder, 10% of mineral powder, 3% of microbeads, 5% of anti-cracking agent, 0.1% of slaked lime, 0.2% of sodium sulfate, 56% of high-silicon aggregate, 0.2% of retarder, 0.15% of water reducer, 0.01% of thickener, 0.07% of defoamer, 0.25% of accelerator and 0.02% of water-retaining agent.
In the embodiment, the cement adopts the anti-cracking cement with the strength grade of 62.5; the stone powder adopts ground quartz stone powder with fineness of 300 meshes to 325 meshes; the specific surface area of the mineral powder is 450m 2 /kg of ground slag powder; the apparent density of the microbeads is 2.5g/cm 3 Spherical fly ash microbeads with the particle size range of 0.4-5 mu m; the anticracking agent adopts calcium oxide expanding agent with fineness of 300-400 meshes; slaked lime adopts Ca (OH) 2 Slaked lime with the content of more than 90 percent and the fineness of 300 meshes to 325 meshes; the sodium sulfate adopts anhydrous sodium sulfate with fineness of 80 meshes to 100 meshes; siO is adopted as the high silicon aggregate 2 Natural yellow sand with the content of more than 95 percent and the fineness modulus of 2.3; the retarder is prepared by compounding sodium tripolyphosphate and sodium citrate according to a mass ratio of 1:1; the water reducer is prepared by compounding a melamine water reducer and a slow-release polycarboxylic acid water reducer according to a mass ratio of 3:1; the thickener adopts hydroxypropyl methyl cellulose ether with the viscosity of 500 mPa.s; the defoaming agent adopts mineral oil defoaming agent; the strength accelerator adopts lithium sulfate; the water-retaining agent adopts sodium polyacrylate type water-absorbing resin with fineness of 50-100 meshes, and the water absorption multiple can reach 12 times.
The construction method of the terrace of the embodiment is as follows:
premixing the raw material components to obtain powder, adding water in proportion on site, stirring for 2min, adding steel fibers, and stirring for 0.5min again to obtain the slurry for paving construction. And pre-treating the original ground base layer before construction, including cleaning the original ground base layer and repairing the pits. The surface of the original ground base layer after pretreatment was fully covered with a spacer film while anchors were driven at 0.5m intervals at the boundary. Spreading the slurry on a separation film, and throwing wear-resistant aggregate on the surface of the slurry before the slurry is not solidified completely. And (3) after the slurry is hardened for 24 hours, firstly grinding the wear-resistant aggregate on the surface by using a terrace grinder, then smearing the surface with a hardening agent to obtain a hardening agent layer with a protective effect, and finally polishing the hardening agent layer to obtain the wear-resistant terrace.
The steel fibers used in this example had a length of 8mm, a diameter of 0.18mm and a tensile strength of 1.15X10 3 MPa, rust removal treatment is carried out on the waste steel wiresShearing to obtain the product; the isolating film is a PE film with the thickness of 0.1 mm; the specification phi of the anchor is 3.5 multiplied by 32mm, the top of the anchor is provided with a bent or arc connecting piece, and a suspended ceiling integrated nail is specifically adopted to increase the connecting force of the slurry and the anchor; the wear-resistant aggregate is selected from tin-titanium alloy aggregate with the particle size of 10-20 meshes; grinding and polishing are as follows: sequentially grinding and polishing by using 50# resin abrasive sheets, 100# resin abrasive sheets, 200# resin abrasive sheets, 400# resin abrasive sheets and 800# resin abrasive sheets; the hardening agent adopts a lithium-based hardening agent.
Comparative example 2
In the wear-resistant terrace material, the dosage ratio of the powder, the steel fiber and the water is 1:0.1:0.08, wherein the powder comprises the following components in percentage by mass: 29% of cement, 5% of stone powder, 7.1% of mineral powder, 4% of microbeads, 6% of anti-cracking agent, 0.3% of slaked lime, 0.5% of sodium sulfate, 47% of high-silicon aggregate, 0.32% of retarder, 0.42% of water reducer, 0.01% of thickener, 0.11% of defoamer, 0.21% of strength accelerator and 0.03% of water retention agent.
In this example, portland cement with a strength grade of 52.5 is used as the cement; the stone powder adopts ground quartz stone powder with fineness of 300 meshes to 325 meshes; the specific surface area of the mineral powder is 450m 2 /kg of ground slag powder; the apparent density of the microbeads is 2.5g/cm 3 Spherical fly ash microbeads with the particle size range of 0.4-5 mu m; the anticracking agent adopts calcium oxide expanding agent with fineness of 300-400 meshes; slaked lime adopts Ca (OH) 2 Slaked lime with the content of more than 90 percent and the fineness of 300 meshes to 325 meshes; the sodium sulfate adopts anhydrous sodium sulfate with fineness of 80 meshes to 100 meshes; siO is adopted as the high silicon aggregate 2 Broken quartz sand with the content of more than 95 percent and the fineness modulus of 2.8; the retarder is prepared by compounding sodium tripolyphosphate and sodium citrate according to a mass ratio of 1:1; the water reducer is prepared by compounding a melamine water reducer and a slow-release polycarboxylic acid water reducer according to a mass ratio of 3:1; the thickener adopts hydroxypropyl methyl cellulose ether with the viscosity of 500 mPa.s; the defoaming agent adopts mineral oil defoaming agent; the strength accelerator adopts lithium sulfate; the water-retaining agent adopts sodium polyacrylate type water-absorbing resin with fineness of 50-100 meshes, and the water absorption multiple can reach 12 times.
The construction method of the terrace of the embodiment is as follows:
premixing the raw material components to obtain powder, adding water in proportion on site, stirring for 2min, adding steel fibers, and stirring for 1min again to obtain slurry for paving construction. And pre-treating the original ground base layer before construction, including cleaning the original ground base layer and repairing the pits. The surface of the original ground base layer after pretreatment was fully covered with a spacer film while anchors were driven at 0.5m intervals at the boundary. Spreading the slurry on a separation film, and throwing wear-resistant aggregate on the surface of the slurry before the slurry is not solidified completely. And (3) after the slurry is hardened for 24 hours, firstly grinding the wear-resistant aggregate on the surface by using a terrace grinder, then smearing the surface with a hardening agent to obtain a hardening agent layer with a protective effect, and finally polishing the hardening agent layer to obtain the wear-resistant terrace.
The steel fibers used in this example had a length of 10mm, a diameter of 0.20mm and a tensile strength of 2.15X10 3 Carrying out rust removal treatment on the waste steel wires and then shearing to obtain the steel wires; the isolating film is a PE film with the thickness of 0.1 mm; the specification phi of the anchor is 3.5 multiplied by 32mm, the top of the anchor is provided with a bent or arc connecting piece, and a suspended ceiling integrated nail is specifically adopted to increase the connecting force of the slurry and the anchor; the wear-resistant aggregate is dolomite aggregate with the particle size of 10-20 meshes; grinding and polishing are as follows: sequentially grinding and polishing by using 50# resin abrasive sheets, 100# resin abrasive sheets, 200# resin abrasive sheets, 400# resin abrasive sheets and 800# resin abrasive sheets; the hardener is colloidal silica hardener.
Comparative example 3
The wear-resistant terrace material comprises the following components in percentage by mass: 29% of cement, 5% of stone powder, 7.1% of mineral powder, 4% of microbeads, 6% of anti-cracking agent, 0.3% of slaked lime, 0.5% of sodium sulfate, 47% of high-silicon aggregate, 0.32% of retarder, 0.42% of water reducer, 0.01% of thickener, 0.11% of defoamer, 0.21% of strength accelerator and 0.03% of water retention agent.
In this example, portland cement with a strength grade of 52.5 is used as the cement; the stone powder adopts ground quartz stone powder with the fineness of 300 meshes to 325 meshes); the specific surface area of the mineral powder is 450m 2 /kg of ground slag powder; the apparent density of the microbeads is 2.5g/cm 3 Spherical fly ash microbeads with the particle size range of 0.4-5 mu m; the anticracking agent adopts calcium oxide with fineness of 300-400 meshes to expandAn expanding agent; slaked lime adopts Ca (OH) 2 Slaked lime with the content of more than 90 percent and the fineness of 300 meshes to 325 meshes; the sodium sulfate adopts anhydrous sodium sulfate with fineness of 80 meshes to 100 meshes; siO is adopted as the high silicon aggregate 2 Broken quartz sand with the content of more than 95 percent and the fineness modulus of 2.8; the retarder is prepared by compounding sodium tripolyphosphate and sodium citrate according to a mass ratio of 1:1; the water reducer is prepared by compounding a melamine water reducer and a slow-release polycarboxylic acid water reducer according to a mass ratio of 3:1; the thickener adopts hydroxypropyl methyl cellulose ether with the viscosity of 500 mPa.s; the defoaming agent adopts mineral oil defoaming agent; the strength accelerator adopts calcium formate; the water-retaining agent adopts sodium polyacrylate type water-absorbing resin with fineness of 50-100 meshes, and the water absorption multiple can reach 12 times.
The construction method of the terrace of the embodiment is as follows:
premixing the raw material components to obtain powder, adding water in proportion on site, stirring for 2min, adding steel fibers, and stirring for 1min again to obtain slurry for paving construction. And pre-treating the original ground base layer before construction, including cleaning the original ground base layer and repairing the pits. The surface of the original ground base layer after pretreatment was fully covered with a spacer film while anchors were driven at 0.5m intervals at the boundary. Spreading the slurry on a separation film, and throwing wear-resistant aggregate on the surface of the slurry before the slurry is not solidified completely. And (3) after the slurry is hardened for 24 hours, firstly grinding the wear-resistant aggregate on the surface by using a terrace grinder, then smearing the surface with a hardening agent to obtain a hardening agent layer with a protective effect, and finally polishing the hardening agent layer to obtain the wear-resistant terrace.
The steel fibers used in this example had a length of 10mm, a diameter of 0.20mm and a tensile strength of 2.15X10 3 Carrying out rust removal treatment on the waste steel wires and then shearing to obtain the steel wires; the isolating film is a PE film with the thickness of 0.1 mm; the specification phi of the anchor is 3.5 multiplied by 32mm, the top of the anchor is provided with a bent or arc connecting piece, and a suspended ceiling integrated nail is specifically adopted to increase the connecting force of the slurry and the anchor; the wear-resistant aggregate is copper tailing aggregate with the particle size of 10-20 meshes; grinding and polishing are as follows: sequentially grinding and polishing by using 50# resin abrasive sheets, 100# resin abrasive sheets, 200# resin abrasive sheets, 400# resin abrasive sheets and 800# resin abrasive sheets; the hardener is colloidal silica hardener.
Comparative example 4
In the wear-resistant terrace material, the dosage ratio of the powder, the steel fiber and the water is 1:0.1:0.08, wherein the powder comprises the following components in percentage by mass: 29% of cement, 5% of stone powder, 7.1% of mineral powder, 4% of microbeads, 6% of anti-cracking agent, 0.3% of slaked lime, 0.5% of sodium sulfate, 47% of high-silicon aggregate, 0.32% of retarder, 0.42% of water reducer, 0.01% of thickener, 0.11% of defoamer, 0.21% of strength accelerator and 0.03% of water retention agent.
In this example, portland cement with a strength grade of 52.5 is used as the cement; the stone powder adopts ground quartz stone powder with fineness of 300 meshes to 325 meshes; the specific surface area of the mineral powder is 450m 2 /kg of ground slag powder; the apparent density of the microbeads is 2.5g/cm 3 Spherical fly ash microbeads with the particle size range of 0.4-5 mu m; the anticracking agent adopts calcium oxide expanding agent with fineness of 300-400 meshes; slaked lime adopts Ca (OH) 2 Slaked lime with the content of more than 90 percent and the fineness of 300 meshes to 325 meshes; the sodium sulfate adopts anhydrous sodium sulfate with fineness of 80 meshes to 100 meshes; the aggregate adopts broken dolomite sand with fineness modulus of 2.8, wherein the mass content of CaO is 50%, siO 2 3.5% of mass content; the retarder is prepared by compounding sodium tripolyphosphate and sodium citrate according to a mass ratio of 1:1; the water reducer is prepared by compounding a melamine water reducer and a slow-release polycarboxylic acid water reducer according to a mass ratio of 3:1; the thickener adopts hydroxypropyl methyl cellulose ether with the viscosity of 500 mPa.s; the defoaming agent adopts mineral oil defoaming agent; the strength accelerator adopts calcium formate; the water-retaining agent adopts sodium polyacrylate type water-absorbing resin with fineness of 50-100 meshes, and the water absorption multiple can reach 12 times.
The construction method of the terrace of the embodiment is as follows:
premixing the raw material components to obtain powder, adding water in proportion on site, stirring for 2min, adding steel fibers, and stirring for 1min again to obtain slurry for paving construction. And pre-treating the original ground base layer before construction, including cleaning the original ground base layer and repairing the pits. The surface of the original ground base layer after pretreatment was fully covered with a spacer film while anchors were driven at 0.5m intervals at the boundary. Spreading the slurry on a separation film, and throwing wear-resistant aggregate on the surface of the slurry before the slurry is not solidified completely. And (3) after the slurry is hardened for 24 hours, firstly grinding the wear-resistant aggregate on the surface by using a terrace grinder, then smearing the surface with a hardening agent to obtain a hardening agent layer with a protective effect, and finally polishing the hardening agent layer to obtain the wear-resistant terrace.
The steel fibers used in this example had a length of 10mm, a diameter of 0.20mm and a tensile strength of 2.15X10 3 Carrying out rust removal treatment on the waste steel wires and then shearing to obtain the steel wires; the isolating film is a PE film with the thickness of 0.1 mm; the specification phi of the anchor is 3.5 multiplied by 32mm, the top of the anchor is provided with a bent or arc connecting piece, and a suspended ceiling integrated nail is specifically adopted to increase the connecting force of the slurry and the anchor; the wear-resistant aggregate is copper tailing aggregate with the particle size of 10-20 meshes; grinding and polishing are as follows: sequentially grinding and polishing by using 50# resin abrasive sheets, 100# resin abrasive sheets, 200# resin abrasive sheets, 400# resin abrasive sheets and 800# resin abrasive sheets; the hardener is colloidal silica hardener.
The components and amounts of the components of the floor materials in examples 1 to 3 and comparative examples 1 to 4 are shown in Table 1 below. The slurries obtained in examples 1 to 3 and comparative examples 1 to 4 were tested for fluidity, mechanical properties and dimensional change rate, the fluidity was tested according to the standard GB/T50448-2015 "cement-based grouting material application Specification", the mechanical properties and dimensional change rate were tested according to the standard JC/T985-2017 "cement-based self-leveling mortar for ground", the dimensional change rate was used to characterize crack resistance, and the smaller the dimensional change rate was, the better the crack resistance was. The abrasion resistance of the abrasion resistant terraces obtained in examples 1 to 3 and comparative examples 1 to 4 was tested, the abrasion resistance was specifically characterized by the depth of abrasion and the surface hardness, the mohs hardness was selected for the surface hardness, the abrasion resistance was tested according to the section 4 of the test method for on-site acceptance inspection of terrace engineering, standard T/CSTM 00556.4-2022, and the performance test data are shown in Table 2.
Table 1 components and amounts of each component of the floor materials in examples and comparative examples
Table 2 performance test data for slurries and wear-resistant terraces of examples and comparative examples
As can be seen from table 2, the construction slurries of examples 1 to 3 have excellent workability, mechanical properties, crack resistance and wear resistance, and the wear-resistant terraces of examples 1 to 3 have excellent wear resistance and surface hardness. As can be seen from comparison of example 1 and comparative example 1, too low an amount of cement reduces the mechanical properties, crack resistance and wear resistance of the slurry. As is clear from comparison of example 2 and comparative example 2, the use of dolomite aggregate as the wear-resistant aggregate deteriorated the wear resistance of the wear-resistant floor surface. As is clear from comparison of example 2 and comparative example 3, when the amount of steel fiber is reduced, the mechanical properties of the slurry are deteriorated and the wear resistance of the wear-resistant floor is also reduced. As is clear from the comparison between example 2 and comparative example 4, example 2 using a high-silicon aggregate can significantly improve mechanical properties and abrasion resistance as compared with comparative example 4 using a non-high-silicon aggregate.
The steel fibers and the sizing agent can jointly construct a three-dimensional network structure, and the three-dimensional network structure can increase the stability of the sizing agent and is beneficial to promoting the improvement of the mechanical properties of the sizing agent. But the dosage of the steel fiber should be within a specific range to better enhance the mechanical property. When the consumption of steel fibers is too low, the density of the constructed three-dimensional network structure becomes small, and the effect of increasing the stability of the slurry is limited. When the consumption of the steel fibers is too high, the steel fibers in the slurry are easy to sink, so that the steel fibers are unevenly distributed, the tensile strength is also not beneficial to improvement, and the other mechanical properties and the wear resistance are reduced. Only when the steel fiber is used in proper amount and can be uniformly distributed in the slurry, the mechanical property and the wear resistance can be obviously improved. Whether the steel fibers can be uniformly distributed in the slurry is influenced by the cement amount and the cement ratio in addition to the amount of the steel fibers, so that a specific amount of the steel fibers, a specific amount of cement and a specific cement ratio are required to be blended.
The simultaneous addition of the high-silicon aggregate and the steel fiber also has a synergistic effect on mechanical properties and wear resistance. Referring to comparative example 3, high silicon aggregate and steel fiber are added at the same time, but the amount of steel fiber is too low, and the ratio of steel fiber to powder is only 0.03:1, a step of; see also comparative example 4, in which a specific amount of steel fiber was added, but a common aggregate was used. The mechanical properties of comparative example 3 and comparative example 4 are comparable, but the abrasion resistance of comparative example 3 is significantly worse. In example 2, the specific amount of steel fiber and high-silicon aggregate are added at the same time, and as can be seen from table 2, the mechanical properties and wear resistance of example 2 are significantly improved compared with those of comparative examples 3-4, and the combination of the specific amount of steel fiber and high-silicon aggregate produces synergistic effect.
Note that the above is only a preferred embodiment of the present application and the technical principle applied. It will be understood by those skilled in the art that the present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the application. Therefore, while the application has been described in connection with the above embodiments, the application is not limited to the above embodiments, but may include many other equivalent embodiments without departing from the spirit of the application, which fall within the scope of the application.
Claims (10)
1. An integrated cracking-resistant bonding-free wear-resistant terrace material is characterized in that:
comprises powder, steel fiber and water, wherein the dosage ratio of the powder to the steel fiber to the water is 1:0.05 to 0.15:0.08 to 0.1; the powder comprises the following components in percentage by mass:
25 to 32 percent of cement, 0 to 10 percent of stone powder, 4.5 to 10 percent of mineral powder, 3 to 5 percent of microbeads, 5 to 8 percent of anticracking agent, 0.1 to 0.4 percent of slaked lime, 0.2 to 0.8 percent of sodium sulfate and 38 to 5 percent of high silicon aggregate6 percent of retarder 0.2 to 0.4 percent, water reducing agent 0.15 to 0.6 percent, thickening agent 0.01 to 0.02 percent, defoamer 0.07 to 0.14 percent, strength accelerator 0.1 to 0.25 percent and water retention agent 0.02 to 0.04 percent; the high-silicon aggregate is SiO 2 The mass content of the natural aggregate or the crushed aggregate is more than 95 percent, and the fineness modulus is 2.3-3.0.
2. The integrally formed anti-cracking bonding-free wear-resistant floor material as claimed in claim 1, wherein:
the dosage ratio of the powder, the steel fiber and the water is 1:0.1 to 0.15:0.08 to 0.1.
3. The integrally formed anti-cracking bonding-free wear-resistant floor material as claimed in claim 1, wherein:
the length of the steel fiber is 8-12 mm, the diameter is 0.18-0.22 mm, and the tensile strength is more than 1.15X10 3 MPa。
4. The integrally formed anti-cracking bonding-free wear-resistant floor material as claimed in claim 1, wherein:
the cement is selected from ordinary Portland cement or special cement with strength grade of 42.5 or above.
5. The integrally formed anti-cracking bonding-free wear-resistant floor material as claimed in claim 1, wherein:
the stone powder is finely ground quartz stone powder with the fineness of 300-325 meshes; and the specific surface area of the mineral powder is not less than 450m 2 /kg of ground slag powder; and the microbeads have an apparent density of not less than 2.5g/cm 3 And the particle size range of the fly ash microbeads is 0.4-5 mu m.
6. An integrated cracking-resistant bonding-free wear-resistant terrace is characterized in that:
the concrete comprises a concrete base layer, a wear-resistant layer arranged on the concrete base layer and a hardening agent layer arranged on the wear-resistant layer; the concrete base material is the material according to any one of claims 1 to 5.
7. The integrally formed anti-cracking bond-free wear-resistant terrace of claim 6, wherein:
the wear-resistant aggregate of the wear-resistant layer is one or more of tin-titanium alloy aggregate, copper tailing aggregate and silicon carbide wear-resistant aggregate with the particle size of 10-20 meshes.
8. The construction method of the anti-cracking bonding-free wear-resistant terrace is characterized by comprising the following steps:
forming the material of any one of claims 1-5 into a slurry; preprocessing the original ground base layer, including cleaning the original ground base layer and repairing pits; fully paving an isolating film on the surface of the pretreated original ground base layer, and arranging anchors at equal intervals at the boundary; spreading the slurry on the isolating film; before the slurry is completely solidified, the surface of the slurry is thrown with wear-resistant aggregate; before the slurry is completely solidified, the surface of the slurry is thrown with wear-resistant aggregate; and (5) grinding, hardening and polishing the surface in sequence after the slurry is hardened.
9. The construction method of the integrally formed anti-cracking bonding-free wear-resistant terrace as claimed in claim 8, which is characterized in that:
the top of the anchor is provided with a curved connecting piece.
10. The construction method of the integrally formed anti-cracking bonding-free wear-resistant terrace as claimed in claim 8, which is characterized in that:
the wear-resistant aggregate is one or more of tin-titanium alloy aggregate, copper tailing aggregate and silicon carbide wear-resistant aggregate with the particle size of 10-20 meshes.
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