CN109336497A - A kind of polymer cement mortar and a kind of repair type railway concrete bridge floor waterproof construction - Google Patents
A kind of polymer cement mortar and a kind of repair type railway concrete bridge floor waterproof construction Download PDFInfo
- Publication number
- CN109336497A CN109336497A CN201811212061.9A CN201811212061A CN109336497A CN 109336497 A CN109336497 A CN 109336497A CN 201811212061 A CN201811212061 A CN 201811212061A CN 109336497 A CN109336497 A CN 109336497A
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- China
- Prior art keywords
- water
- cement
- sand
- cement mortar
- agent
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- 239000011433 polymer cement mortar Substances 0.000 title claims abstract description 42
- 239000004567 concrete Substances 0.000 title claims abstract description 37
- 238000010276 construction Methods 0.000 title claims description 17
- 230000008439 repair process Effects 0.000 title description 3
- 238000002156 mixing Methods 0.000 claims abstract description 53
- 239000004568 cement Substances 0.000 claims abstract description 44
- 239000004576 sand Substances 0.000 claims abstract description 43
- 239000000839 emulsion Substances 0.000 claims abstract description 42
- 239000000463 material Substances 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000011178 precast concrete Substances 0.000 claims abstract description 28
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 25
- 229920002521 macromolecule Polymers 0.000 claims abstract description 22
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 21
- 239000006254 rheological additive Substances 0.000 claims abstract description 15
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 14
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 13
- 239000003566 sealing material Substances 0.000 claims abstract description 10
- 238000002360 preparation method Methods 0.000 claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 60
- 238000003756 stirring Methods 0.000 claims description 18
- 239000004570 mortar (masonry) Substances 0.000 claims description 17
- 239000011398 Portland cement Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 14
- 239000004575 stone Substances 0.000 claims description 14
- 239000002994 raw material Substances 0.000 claims description 13
- 239000002253 acid Substances 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 12
- 229920000642 polymer Polymers 0.000 claims description 10
- UFWIBTONFRDIAS-UHFFFAOYSA-N naphthalene-acid Natural products C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 239000010703 silicon Substances 0.000 claims description 8
- 239000002174 Styrene-butadiene Substances 0.000 claims description 7
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 7
- 239000011083 cement mortar Substances 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 239000011115 styrene butadiene Substances 0.000 claims description 7
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 7
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 6
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 6
- 229920003086 cellulose ether Polymers 0.000 claims description 6
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 6
- 239000012634 fragment Substances 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 6
- 239000006210 lotion Substances 0.000 claims description 6
- 229920000570 polyether Polymers 0.000 claims description 6
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims description 6
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 5
- 239000005977 Ethylene Substances 0.000 claims description 5
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 5
- 239000011575 calcium Substances 0.000 claims description 5
- 229910052791 calcium Inorganic materials 0.000 claims description 5
- WBYWAXJHAXSJNI-UHFFFAOYSA-N cinnamic acid Chemical compound OC(=O)C=CC1=CC=CC=C1 WBYWAXJHAXSJNI-UHFFFAOYSA-N 0.000 claims description 5
- 239000003245 coal Substances 0.000 claims description 5
- 229920001577 copolymer Polymers 0.000 claims description 5
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 5
- 150000002148 esters Chemical class 0.000 claims description 5
- 239000000194 fatty acid Substances 0.000 claims description 5
- 229930195729 fatty acid Natural products 0.000 claims description 5
- 150000004665 fatty acids Chemical class 0.000 claims description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 5
- 239000006028 limestone Substances 0.000 claims description 5
- 239000011707 mineral Substances 0.000 claims description 5
- 239000010424 alunite Substances 0.000 claims description 4
- 229910052934 alunite Inorganic materials 0.000 claims description 4
- 239000010426 asphalt Substances 0.000 claims description 4
- 150000001735 carboxylic acids Chemical class 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 4
- 239000010881 fly ash Substances 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 4
- 238000006116 polymerization reaction Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- 239000002562 thickening agent Substances 0.000 claims description 4
- ALVYUZIFSCKIFP-UHFFFAOYSA-N triethoxy(2-methylpropyl)silane Chemical compound CCO[Si](CC(C)C)(OCC)OCC ALVYUZIFSCKIFP-UHFFFAOYSA-N 0.000 claims description 4
- KDJNNYXXPNIWGP-UHFFFAOYSA-N 2-methylprop-1-ene triethoxysilane Chemical compound C(C)O[SiH](OCC)OCC.C=C(C)C KDJNNYXXPNIWGP-UHFFFAOYSA-N 0.000 claims description 3
- 150000001298 alcohols Chemical class 0.000 claims description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 3
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical class [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000015271 coagulation Effects 0.000 claims description 3
- 238000005345 coagulation Methods 0.000 claims description 3
- 239000010883 coal ash Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 229920002050 silicone resin Polymers 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- KPZTWMNLAFDTGF-UHFFFAOYSA-D trialuminum;potassium;hexahydroxide;disulfate Chemical class [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Al+3].[Al+3].[Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O KPZTWMNLAFDTGF-UHFFFAOYSA-D 0.000 claims description 3
- 241000931143 Gleditsia sinensis Species 0.000 claims description 2
- 229920001732 Lignosulfonate Chemical class 0.000 claims description 2
- 229920002472 Starch Polymers 0.000 claims description 2
- 150000004996 alkyl benzenes Chemical class 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 229910021529 ammonia Inorganic materials 0.000 claims description 2
- 239000002956 ash Substances 0.000 claims description 2
- 229940077388 benzenesulfonate Drugs 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000000806 elastomer Substances 0.000 claims description 2
- 229930182470 glycoside Natural products 0.000 claims description 2
- 150000002338 glycosides Chemical class 0.000 claims description 2
- 238000011065 in-situ storage Methods 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 241000894007 species Species 0.000 claims description 2
- 235000019698 starch Nutrition 0.000 claims description 2
- HXOGQBSDPSMHJK-UHFFFAOYSA-N triethoxy(6-methylheptyl)silane Chemical compound CCO[Si](OCC)(OCC)CCCCCC(C)C HXOGQBSDPSMHJK-UHFFFAOYSA-N 0.000 claims description 2
- 239000004925 Acrylic resin Substances 0.000 claims 2
- 229920000178 Acrylic resin Polymers 0.000 claims 2
- 239000006071 cream Substances 0.000 claims 2
- 239000007788 liquid Substances 0.000 claims 2
- 230000008901 benefit Effects 0.000 claims 1
- 125000001624 naphthyl group Chemical group 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 13
- 238000005259 measurement Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000011241 protective layer Substances 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 239000004588 polyurethane sealant Substances 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 239000013530 defoamer Substances 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 3
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 3
- 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 3
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 3
- 230000007775 late Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical group CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000001398 aluminium Chemical class 0.000 description 1
- 229910000329 aluminium sulfate Inorganic materials 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- 235000011128 aluminium sulphate Nutrition 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 125000001905 inorganic group Chemical group 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000011414 polymer cement Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- 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
Abstract
The present invention provides a kind of polymer cement mortar, according to the mass fraction, comprising: 0.95~0.99 part of cement, 0.01~0.05 part of cement and expanded mixing material, 0.3~0.7 part of macromolecule emulsion, 0.01~0.06 part of silane coupling agent, 1.5~2 parts of sand, 0.0004~0.01 part of defoaming agent, air entraining agent 0.001~0.005,0~0.02 part of water-reducing agent, 0~0.001 part of rheology modifier, 0~0.3 part of water；Wherein, cement and the total mass number of cement and expanded mixing material are 1 part.The present invention also provides the preparation method and applications of the polymer cement mortar.The present invention also provides a kind of bridge deck water-proof structures of Railway Concrete Bridge, including the waterproof roll, above-mentioned polymer cement mortar and lightweight precast concrete plate from bottom to top set gradually, is filled and sealed by waterproof sealing material between the lightweight precast concrete plate.
Description
Technical field
The invention belongs to building waterproofing technique fields, and in particular to a kind of new railway concrete bridge floor waterproof construction and adopt
Polymer cement mortar.
Background technique
Railway Concrete Bridge bridge deck water-proof system is to improve the important technical of bridge structure durability.Existing bridge
If directly influencing the service life and train of bridge since bridge deck water-proof failure will cause floorings infiltration, steel bar corrosion
Traffic safety.
The water-proof system of China railways concrete bridge deck is then integrated poured traditionally all using first laying water-proof coiled material layer
The concrete of certain thickness (about 10cm) is as protective layer.Currently, high speed non-fragment orbit still uses " waterproof roll+protective layer "
This bridge deck water-proof system.Such as Chinese invention patent application " for severe cold area high-speed railway bridge floor water-protected enclosure system and
Its construction method " (publication number CN108149569A, publication date on January 25th, 2018) discloses a kind of for severe cold area high speed
Water-proof system between the line of railway deck, including waterproof roll layer and fiber concrete protective layer.
Before railway high speed, since system-wide net all uses Ballast track, railway ballast is covered above protective layer, entire railway is mixed
How is the state of the waterproof layer of solidifying soil bridge floor in use, is never paid close attention to.
But railway high speed and without the tiny fragments of stone, coal, etc. after, it is especially high and cold using the local section of this bridge deck water-proof system
Area, within the short 1 year time there have been concrete cover dusting, chip off-falling, the diseases such as arch upward.Reason is analyzed, it can
It can be because severe cold areas causes the multigelation of fiber concrete protective layer, destroy concrete because temperature change is violent
Structure and make concrete destruction, broken.The high-speed rail that broken concrete is easily crossed at a high speed sucks car bottom and wounds
Vehicle bottom, or it is sucked up route, track irregularity is caused, traffic safety is influenced.
Summary of the invention
For problem above of the existing technology, the present invention provides a kind of polymer cement mortar and uses this polymerization
The new railway concrete bridge floor waterproof construction of object cement mortar.
In order to realize above-mentioned technical effect, present invention employs the following technical solutions:
A kind of polymer cement mortar, according to the mass fraction, comprising: 0.95~0.99 part of cement, cement and expanded mixing material
0.01~0.05 part, 0.3~0.7 part of macromolecule emulsion, 0.01~0.06 part of silane coupling agent, 1.5~2 parts of sand, defoaming agent
0.0004~0.01 part, air entraining agent 0.001~0.005,0~0.02 part of water-reducing agent, 0~0.001 part of rheology modifier, water 0~
0.3 part；Wherein, cement and the total mass number of cement and expanded mixing material are 1 part.
Preferably, according to the mass fraction, the polymer cement mortar includes: 0.97~0.99 part of cement, cement and expanded
0.01~0.03 part of mixing material, 0.35~0.5 part of macromolecule emulsion, 0.02~0.05 part of silane coupling agent, 1.5~2 parts of sand, disappear
0.0004~0.005 part of infusion, 0.001~0.004 part of air entraining agent, 0~0.01 part of water-reducing agent, rheology modifier 0~0.0008
Part, 0~0.25 part of water；Wherein, cement and the gross mass number of cement and expanded mixing material are 1 part.
Preferably, the silane coupling agent is selected from 3- aminopropyl triethoxysilane, isobutyl triethoxy silane, isobutyl
One of alkene triethoxysilane, isooctyltriethoxysilane are a variety of.
Preferably, the macromolecule emulsion is selected from styrene-butadiene emulsion, carboxyl styrene emulsion, styrene-acrylic emulsion, modified acroleic acid tree
It is one or more in fat liquor, ethylene/vinyl acetate copolymer lotion.
Preferably, the cement is selected from one of ordinary portland cement and portland cement or a variety of.
Preferably, the cement and expanded mixing material is selected from calcium sulphoaluminate clinker-lime stone class, alumino-silicate clinker-oxidation
Aluminium class, alumino-silicate clinker-alunite class, lime-alunite complex class, calcium aluminate class, alunite class, powder coal ash expanding mixing
One of material is a variety of.
Preferably, the sand is selected from one of river sand, sea sand, mountain sand and mechanism silica sand or a variety of.
It is highly preferred that the fineness modulus of the sand is 2.3~3.0, clay content or content of stone powder are less than 1% weight.
Preferably, the water-reducing agent is selected from one of naphthalene system and polycarboxylic acid or a variety of；More preferably polycarboxylic acid.
Preferably, the rheology modifier in cellulose ether, acrylic compounds, polyethers and polyurethane thickener one
Kind is a variety of；More preferably cellulose ether.
Preferably, the defoaming agent is one or more in organic silicon, higher alcohols, fatty acid and polyethers；
More preferably from organophosphorus ester, organic siliconresin, modified organic silicone resin and silica and organic siliconresin complex
It is one or more.
Preferably, the air entraining agent is selected from rosin and its hot polymerization species, alkyl benzene sulfonate, gleditsia sinensis glycoside, fatty acid
And one of its esters and lignosulfonate salt or a variety of.
The present invention also provides the preparation methods of the polymer cement mortar, comprising the following steps:
A. the macromolecule emulsion of the mass parts, water, defoaming agent, water-reducing agent, silane coupled is sequentially added into blender
Agent simultaneously stirs and evenly mixs, and mixing speed is 20~40rpm；
B. the sand of the mass parts is added and stirs and evenly mixs, mixing speed is 60~80rpm；
C. the cement of the mass parts, cement and expanded mixing material, rheology modifier are sequentially added and is stirred and evenly mixed, is stirred
Speed is 100~140rpm；
D. air entraining agent is added, then is stirred 3~5 minutes with the mixing speed of 100~140rpm, then adjusts mixing speed
For 20~40rpm continue stirring 1 minute to get；
Or
A'. the cement of the mass parts, cement and expanded mixing material, sand, rheology modifier are uniformly mixed, obtain dry powder；
B'. the macromolecule emulsion of the mass parts, water, water-reducing agent, defoaming agent, silane coupling agent are sequentially added mortar and stirred
It mixes in machine, mixes slowly, mixing speed is 20~40rpm；
C'. the siccative, air entraining agent that step A' is prepared is added, quickly stirs 3~5 minutes, mixing speed 100
~140rpm, then by mixing speed be adjusted to 20~40rpm continue stirring 1 minute to get.
It is also an object of the present invention to provide above-mentioned polymer cement mortars in railway concrete bridge floor waterproof construction
In application, the especially application in railway ballastless concrete bridge deck waterproof construction.
The present invention also provides a kind of railway concrete bridge floor waterproof constructions, including the waterproof roll from bottom to top set gradually
Material, above-mentioned polymer cement mortar and lightweight precast concrete plate, by waterproof sealing material between the lightweight precast concrete plate
Filling and sealing.
The lightweight precast concrete plate covers the polymer cement mortar closely to each other.
Preferably, the waterproof construction of the railway concrete bridge floor, drainage grade are 0.3%~0.5%.
Preferably, the Railway Concrete Bridge is no tiny fragments of stone, coal, etc. concrete-bridge.
Preferably, the waterproof sealing material is filleting glue.
The filleting glue is filleting glue commonly used in the art, such as can be close selected from silicone structure weather proofing sealant, polysulfide
Sealing, polyurethane sealant etc., preferably polyurethane sealant.
Preferably, the waterproof roll is pitch class waterproof roll；More preferably modified pitch of high polymer waterproof
Coiled material, including SBS elastomer modified asphalt waterproof roll, APP plastics modification asphalt water-proof coiled material etc..
The modified pitch of high polymer waterproof roll is using long fibre polyester fiber felt as carcass, with high molecular polymerization
Object modified pitch is coating, makees facing material with fine sand.
Preferably, the lightweight precast concrete plate meets LC40 strength grade, and every 1 cubic metre of raw material includes:
400~500kg of cement, 400~600kg of sand, 800~1000kg of haydite, 100~300kg of macromolecule emulsion, mineral
100~200kg of admixture, 4~10kg of water-reducing agent, 100~200kg of water.
Preferably, the cement is selected from one of ordinary portland cement, portland cement or a variety of.
Preferably, the sand is selected from one of river sand, sea sand, mountain sand and mechanism silica sand or a variety of.
Preferably, the macromolecule emulsion is selected from styrene-butadiene emulsion, carboxyl styrene emulsion, styrene-acrylic emulsion, modified acroleic acid tree
It is one or more in fat liquor, ethylene/vinyl acetate copolymer lotion.
It is highly preferred that the fineness modulus of the sand is 2.3~3.0, clay content or content of stone powder are less than 1% weight.
Preferably, the haydite is selected from one of broken stone type, spheroidal, conical haydites of book structure or a variety of.Into after for 24 hours
Vacuum is satisfied water process.
Preferably, the mineral admixture is selected from one of flyash, slag powders, silicon ash or a variety of.
Preferably, the water-reducing agent is selected from one of naphthalene system and polycarboxylic acid or a variety of；More preferably polycarboxylic acid.
The lightweight precast concrete plate is prepared according to the method for this field routine and maintenance.
It is also an object of the present invention to provide a kind of construction methods of the water-proof system of railway concrete bridge floor, including
Following steps:
I. the railway concrete bridge floor for needing to be arranged water-proof system is cleaned out；
II. in the region laying water-proof coiled material cleaned out；
III. the polymer cement mortar is prepared in situ according to aforementioned preparation process, is poured waterproof roll after the cleaning
Surface, thickness 1cm or so；
IV. the lightweight precast concrete plate sequence is closely laid on the polymer cement mortar of casting,
And to bridge deck drainage hole direction formed 0.3%~0.5% drainage grade；Gap between the lightweight precast concrete plate
0.5cm or so,
V.1d after, the gap between the lightweight precast concrete plate is filled and closed with waterproof sealing material.
Preferably, the waterproof sealing material is filleting glue.
" mass parts " or " part " in this specification, expression is quality proportioning opposite between each component, and
Non-mass unit.According to actual needs, 500g, 1kg, 10kg, 100kg, etc. be can be for 1 part (mass parts).
Silane coupling agent in mortar of the present invention, the organic and inorganic group in molecule can be respectively and in mortar
Inorganic material and macromolecule combine, and form firm covalent bond, improve the interfacial adhesion of two class materials, have mortar excellent
Different impermeability, water resistance and finer and close structure, to improve the mechanical property and endurance quality of material.
The macromolecule emulsion can reduce mixing water amount, thus improve the water resistance of mortar, frost resistance, weatherability and
Anti-fatigue performance.In the present invention, the macromolecule emulsion is selected from styrene-butadiene emulsion, carboxyl styrene emulsion, styrene-acrylic emulsion, modified propylene
It is one or more in acid resin lotion, ethylene/vinyl acetate copolymer lotion.
Cement and expanded mixing material of the present invention be based on aluminium sulfate system mineral, and contain micro macromolecular
Column dispersing agent and inorganic salts, effect are to alleviate the dry of mortar to shrink.By test, the discovery of detection commercial product is commercially available
Cement and expanded mixing material can act as close effect, including but not limited to calcium sulphoaluminate clinker-lime stone class, aluminosilicate
Salt clinker-alumina type, alumino-silicate clinker-alunite class, lime-alunite complex class, calcium aluminate class, alunite class, powder
The common commercially available cement and expanded mixing material, etc. of coal ash mixing material etc..
The water-reducing agent can reduce mixing water amount, improve the mobility and homogeneity of mortar.Water-reducing agent of the present invention
Selected from one of naphthalene system and polycarboxylic acid or a variety of；More preferably polycarboxylic acid.
The stability of mixing and stirring of mortar not only can be improved in the rheology modifier, while assigning mortar with thixotropy；It is cutting
Mortar is set to have good mobility full to be perfused under the effect of cutting；And after mortar is stood, increase mortar viscosity, improves mortar
Homogeneity, prevent bleeding sand setting.Rheology modifier of the present invention is selected from cellulose ether, acrylic compounds, polyethers and poly- ammonia
One of ester thickener is a variety of；More preferably cellulose ether and/or polyurethane thickener.
The effect of the defoaming agent is eliminated due to stirring the air pocket generated in system.Defoaming agent choosing of the present invention
It is one or more from organic silicon, higher alcohols, fatty acid and polyethers；More preferably from organophosphorus ester, organosilicon tree
One of rouge, modified organic silicone resin and silica and organic siliconresin complex are a variety of.
Polymer quick-hardening cement mortar of the present invention passes through components and its matter such as cement, adjustable solidification agent and macromolecule emulsion
Amount proportion, increases the compatibility of each component in mortar, and make to generate synergistic effect between each component, forms hydrated cementitious and produces
Object, sand, high molecular polymer interaction homogenous network structure, assign the excellent thermal adaptability of mortar of the present invention,
Application property and durability.Therefore polymer cement mortar of the present invention is particularly suitable for severe cold area.
The waterproof construction of railway concrete bridge floor provided by the invention, structure novel is at low cost, easy to repair: lightweight is mixed
Solidifying soil prefabricated board can be produced in factory mass, and convenient transportation is convenient for site operation；When concrete cover breakage occurs,
Damaged concrete prefabricated board is only needed replacing, will not influence other regions.
Specific embodiment
The present invention is described below with reference to specific embodiments.It will be appreciated by those skilled in the art that these embodiments are only
For illustrating the present invention, do not limit the scope of the invention in any way.
Experimental method in following embodiments is unless otherwise specified conventional method.Original as used in the following examples
Material, reagent material etc. are commercially available products unless otherwise specified.Wherein, the purchase situation of part raw material is as follows:
42.5 ordinary portland cements, 42.5 portland cements: Tongling Conch Cement Co., Ltd；
Modified acrylic acid emulsion: Beijing Dongfang Yakeli Chemical Science Co., Ltd；
Isobutyl triethoxy silane, isobutene triethoxysilane: Beijing Zhu Lide new material Co., Ltd；
Modified pitch of high polymer waterproof roll: Beijing Orient Yu Hong waterproof technique Co., Ltd；
Polyurethane sealant: Beijing Orient Yu Hong waterproof technique Co., Ltd；
Calcium sulphoaluminate clinker-lime stone class expands mixing material: Tangshan Polar Bear Building Material Co., Ltd..
A kind of embodiment 1: polymer cement mortar
The raw material proportioning of polymer cement mortar described in the present embodiment are as follows:
42.5 0.99 part of ordinary portland cements, calcium sulphoaluminate clinker-lime stone class expand 0.01 part of mixing material agent, are modified
0.35 part of acrylic emulsion, 0.03 part of isobutyl triethoxy silane, 2 parts of sand, 0.001 part of organic silicon defoamer, rosin is drawn
0.002 part of gas agent, 0.005 part of high-efficiency water-reducing agent of poly-carboxylic acid, 0.0007 part of hydroxypropyl methyl cellulose ether, 0.20 part of water.
Polymer cement mortar described in the present embodiment is prepared via a method which (1 part=100kg):
A. the macromolecule emulsion of the mass parts, water, defoaming agent, water-reducing agent, silane coupled is sequentially added into blender
Agent simultaneously stirs and evenly mixs, and mixing speed is 20~40rpm；
B. the sand of the mass parts is added and stirs and evenly mixs, mixing speed is 60~80rpm；
C. the cement of the mass parts, cement and expanded mixing material, rheology modifier are sequentially added and is stirred and evenly mixed, is stirred
Speed is 100~140rpm；
D. rosin air entraining agent is added, then is stirred 3~5 minutes with the mixing speed of 100~140rpm, it then will stirring speed
Degree be adjusted to 20~40rpm continue stirring 1 minute to get.
A kind of embodiment 2: polymer cement mortar
The raw material proportioning of polymer cement mortar described in the present embodiment are as follows:
42.5 0.99 part of portland cements, lime-alunite complex class expand 0.01 part of mixing material, styrene-butadiene emulsion 0.45
Part, 0.03 part of isobutene triethoxysilane, 2 parts of sand, 0.001 part of organic silicon defoamer, rosin air entraining agent 0.003, poly- carboxylic
0.005 part of sour high efficiency water reducing agent, 0.0004 part of hydroxypropyl methyl cellulose ether, 0.15 part of water.
Polymer cement mortar described in the present embodiment is prepared via a method which:
A. the cement of the mass parts, cement and expanded mixing material, sand, rheology modifier are uniformly mixed, obtain dry powder；
B. the macromolecule emulsion of the mass parts, water, water-reducing agent, defoaming agent, silane coupling agent are sequentially added mortar and stirred
It mixes in machine, mixes slowly, mixing speed is 20~40rpm；
C. the siccative, rosin air entraining agent that step A' is prepared is added, quickly stirs 3~5 minutes, mixing speed
For 100~140rpm, then by mixing speed be adjusted to 20~40rpm continue stirring 1 minute to get.
A kind of comparative example 1: polymer cement mortar
42.5 0.99 part of portland cements, 0.01 part of swelling agent, 0.25 part of styrene-butadiene emulsion, 1.5 parts of sand, organic silicon defoamer
0.004 part, 0.007 part of high-efficiency water-reducing agent of poly-carboxylic acid, 0.001 part of hydroxypropyl methyl cellulose ether, 0.10 part of water.
Polymer cement mortar is prepared according to the identical method and steps of embodiment 1.
Test case 1: the cement mortar performance measurement of embodiment 1-2 and comparative example 1
According to the method measurement embodiment 1-2 and comparative example 1 recorded in JCT984-2011 " Polymer cement materials "
Cement mortar properties, measurement result is shown in Table 1.
1 polymer cement mortar performance of table
| Embodiment 1 | Embodiment 2 | Comparative example 1 | |
| 1d compression strength/MPa | 21.0 | 20.8 | 20.0 |
| 1d flexural strength/MPa | 14.0 | 15.4 | 15.7 |
| 28d compression strength/MPa | 32.4 | 36.7 | 23.6 |
| 28d flexural strength/MPa | 17.8 | 18.0 | 17.0 |
| Frost resistance | Without peeling, no cracking | Without peeling, no cracking | Without peeling, no cracking |
| 28d impermeability pressure/MPa | 2.5 | 3.0 | 1.5 |
| Adhesive strength/MPa | 4.0 | 3.1 | 2.0 |
| Shrinking percentage/% | 0.02 | 0.02 | 0.04 |
| Water absorption rate/% | 0.4 | 0.3 | 0.8 |
From the data of table 1 it can be seen that polymer cement mortar (Examples 1 and 2) of the invention is in mechanical property, structure
Compactness and comparative example 1 is superior to various aspects such as the adhesiveness of precast slab.
The polymer cement mortar of comparative example 1 only lacks silane coupling agent on raw material composition compared with Examples 1 and 2
And air entraining agent, it is few that furthermore the content of macromolecule emulsion is more of the invention.But the above-mentioned difference exactly on raw material composition, lead to sand
Starch the significant difference of performance.Illustrate polymer cement mortar provided by the invention raw material composition be its excellent properties basis and
Guarantee.
A kind of embodiment 3: lightweight precast concrete plate
The raw material proportioning of lightweight precast concrete plate described in the present embodiment are as follows: 42.5 ordinary portland cement 420kg/m3、
River sand 590kg/m3, modified acrylic acid emulsion 150kg/m3, 800 grades of broken stone type haydite 823kg/m3, I grades of flyash 100kg/m3、
Polycarboxylic acid series high efficiency water reducing agent 5.2kg/m3, water 145kg/m3.It prepares and conserves according to conventional method in that art.
A kind of embodiment 4: lightweight precast concrete plate
The raw material proportioning of lightweight precast concrete plate described in the present embodiment are as follows: 42.5 ordinary portland cement 420kg/m3、
River sand 590kg/m3, styrene-acrylic emulsion 160kg/m3, 800 grades of broken stone type haydite 823kg/m3, slag 120kg/m3, polycarboxylic-acid it is high
Imitate water-reducing agent 7kg/m3, water 140kg/m3.It prepares and conserves according to conventional method in that art.
A kind of comparative example 2: lightweight precast concrete plate
The raw material proportioning of lightweight concrete described in this comparative example are as follows: 42.5 ordinary portland cement 420kg/m3, river sand
420kg/m3, 800 grades of broken stone type haydite 1100kg/m3, I grades of flyash 100kg/m3, poly carboxylic acid series water reducer 7kg/m3, water
100kg/m3。
Test case 2: the lightweight precast concrete plate performance measurement of embodiment 3-4 and comparative example 2
According to the method measurement embodiment 3-4 and comparative example recorded in JGJ51-2002 " lightweight aggregate concrete technology regulation "
The properties of 2 cement mortar, measurement result are shown in Table 2.
2 lightweight concrete slab performance of table
| Embodiment 3 | Embodiment 4 | Comparative example 2 | |
| Compression strength (7d) | 21 | 23 | 25 |
| Compression strength (28d) | 34 | 35 | 40 |
| Flexural strength (7d) | 16.0 | 17.2 | 20 |
| Flexural strength (28d) | 20.2 | 21.0 | 25 |
| Shrinking percentage % | 0.01 | 0.01 | 0.05 |
| Frost resistance | 300 inferior quality loss lates 0.1% | 300 inferior quality loss lates 0.2% | 300 inferior quality loss lates 2.5% |
2 data of table are shown, and the mechanical property and comparative example 2 of the lightweight precast concrete plate of embodiment 3 and 4 are suitable, still
Shrinking percentage and frost resistance are obviously superior to comparative example 2.Illustrate that lightweight precast concrete plate of the invention is compounded by organic-inorganic
System, and haydite is satiated after water process, and the finer and close waterproof of structure is made, anti-freezing property improves.
A kind of embodiment 5: construction method of no tiny fragments of stone, coal, etc. railway concrete bridge floor water-proof system
Construction method described in the present embodiment, includes the following steps:
I. the Railway Concrete Bridge bridge floor for needing to be arranged water-proof system is cleaned out；
II. modified pitch of high polymer waterproof roll is laid in the region cleaned out；
III. according to the raw material proportioning of embodiment 1 and preparation method scene mixing polymer cement mortar, it is cast in cleaning
Waterproof roll surface afterwards, thickness 1cm or so；
IV. it will be closely laid according to raw material described in embodiment 4 and the lightweight precast concrete plate sequence of method preparation
On the polymer cement mortar of casting and entire screed is covered, and forms 0.3%~0.5% to bridge deck drainage hole direction
Drainage grade；Gap 0.5cm or so between the lightweight precast concrete plate；
V.1d after, the gap between the lightweight precast concrete plate is filled and closed with polyurethane sealant.
By the above process, the construction of no tiny fragments of stone, coal, etc. railway concrete bridge floor water-proof system, the bridge deck water-proof system are completed
Including the waterproof roll, polymer cement mortar and lightweight precast concrete plate from bottom to top set gradually, the lightweight coagulation
Native prefabricated board covers the polymer cement mortar closely to each other, the gap between prefabricated board by waterproof sealing material filling and it is close
Envelope.
In short, specific description of embodiments of the present invention above is not intended to limit the present invention, those skilled in the art can be with
It is variously modified or deforms according to the present invention, as long as it does not depart from the spirit of the invention, should belong to right appended by the present invention and wants
The range asked.
Claims (10)
1. a kind of polymer cement mortar, according to the mass fraction, comprising: 0.95~0.99 part of cement, cement and expanded mixing material
0.01~0.05 part, 0.3~0.7 part of macromolecule emulsion, 0.01~0.06 part of silane coupling agent, 1.5~2 parts of sand, defoaming agent
0.0004~0.01 part, air entraining agent 0.001~0.005,0~0.02 part of water-reducing agent, 0~0.001 part of rheology modifier, water 0~
0.3 part；Wherein, cement and the total mass number of cement and expanded mixing material are 1 part.
2. polymer cement mortar according to claim 1, which is characterized in that according to the mass fraction, the polymer water
Cement mortar includes: 0.97~0.99 part of cement, 0.01~0.03 part of cement and expanded mixing material, and 0.35~0.5 part of macromolecule emulsion,
0.02~0.05 part of silane coupling agent, 1.5~2 parts of sand, 0.0004~0.005 part of defoaming agent, 0.001~0.004 part of air entraining agent,
0~0.01 part of water-reducing agent, 0~0.0008 part of rheology modifier, 0~0.25 part of water；Wherein, cement and cement and expanded mixing material
Gross mass number is 1 part.
3. polymer cement mortar according to claim 1 or 2, which is characterized in that the silane coupling agent is selected from 3- ammonia
Propyl-triethoxysilicane, isobutyl triethoxy silane, isobutene triethoxysilane, in isooctyltriethoxysilane
It is one or more；
Preferably, the macromolecule emulsion is selected from styrene-butadiene emulsion, carboxyl styrene emulsion, styrene-acrylic emulsion, acrylic resin modified cream
It is one or more in liquid, ethylene/vinyl acetate copolymer lotion；
Preferably, the cement is selected from one of ordinary portland cement and portland cement or a variety of；
Preferably, the cement and expanded mixing material be selected from calcium sulphoaluminate clinker-lime stone class, alumino-silicate clinker-alumina type,
Alumino-silicate clinker-alunite class, lime-alunite complex class, calcium aluminate class, alunite class, in powder coal ash expanding mixing material
It is one or more；
Preferably, the sand is selected from one of river sand, sea sand, mountain sand and mechanism silica sand or a variety of；
It is highly preferred that the fineness modulus of the sand is 2.3~3.0, clay content or content of stone powder are less than 1% weight.
4. polymer cement mortar according to claim 1 or 2, which is characterized in that the water-reducing agent is selected from naphthalene system and gathers
One of carboxylic acids is a variety of；Preferably polycarboxylic acid；
Preferably, the rheology modifier be selected from one of cellulose ether, acrylic compounds, polyethers and polyurethane thickener or
It is a variety of；More preferably cellulose ether；
Preferably, the defoaming agent is one or more in organic silicon, higher alcohols, fatty acid and polyethers；It is more excellent
Selected from one of organophosphorus ester, organic siliconresin, modified organic silicone resin and silica and organic siliconresin complex
Or it is a variety of；
Preferably, the air entraining agent be selected from rosin and its hot polymerization species, alkyl benzene sulfonate, gleditsia sinensis glycoside, fatty acid and its
One of salt and lignosulfonate salt are a variety of.
5. the preparation method of polymer cement mortar described in any one of Claims 1-4, comprising the following steps:
A. the macromolecule emulsions of the mass parts, water, defoaming agent, water-reducing agent, silane coupling agent are sequentially added into blender simultaneously
It stirs and evenly mixs, mixing speed is 20~40rpm；
B. the sand of the mass parts is added and stirs and evenly mixs, mixing speed is 60~80rpm；
C. the cement of the mass parts, cement and expanded mixing material, rheology modifier are sequentially added and is stirred and evenly mixed, mixing speed
For 100~140rpm；
D. air entraining agent is added, then is stirred 3~5 minutes with the mixing speed of 100~140rpm, mixing speed is then adjusted to 20
~40rpm continue stirring 1 minute to get；
Or
A'. the cement of the mass parts, cement and expanded mixing material, sand, rheology modifier are uniformly mixed, obtain dry powder；
B'. the macromolecule emulsion of the mass parts, water, water-reducing agent, defoaming agent, silane coupling agent are sequentially added into mortar mixer
It is interior, it mixes slowly, mixing speed is 20~40rpm；
C'. step the A' siccative, the air entraining agent that are prepared is added, quickly stirs 3~5 minutes, mixing speed is 100~
140rpm, then by mixing speed be adjusted to 20~40rpm continue stirring 1 minute to get.
6. polymer cement mortar described in any one of Claims 1-4 or preparation side according to claim 5
Application of the polymer cement mortar that method is prepared in railway concrete bridge floor waterproof construction, especially in railway ballastless coagulation
Application in native bridge deck water-proof structure.
7. a kind of Railway Concrete Bridge bridge deck water-proof structure, including the waterproof roll that from bottom to top sets gradually, benefit require 1 to
The polymer that polymer cement mortar described in any one of 4 or preparation method according to claim 5 are prepared
Cement mortar and lightweight precast concrete plate；The lightweight precast concrete plate covers the polymer water silt particle closely to each other
It starches, is filled and sealed by waterproof sealing material between the lightweight precast concrete plate.
8. the waterproof construction of railway concrete bridge floor according to claim 7, which is characterized in that drainage grade 0.3%
~0.5%；
Preferably, the Railway Concrete Bridge is no tiny fragments of stone, coal, etc. concrete-bridge；
Preferably, the waterproof sealing material is filleting glue；
Preferably, the waterproof roll is pitch class waterproof roll；More preferably modified pitch of high polymer waterproof roll,
Including SBS elastomer modified asphalt waterproof roll, APP plastics modification asphalt water-proof coiled material etc..
9. the waterproof construction of railway concrete bridge floor according to claim 7 or 8, which is characterized in that the lightweight coagulation
Native prefabricated board meets LC40 strength grade, and every 1 cubic metre of raw material includes:
400~500kg of cement, 400~600kg of sand, 800~1000kg of haydite, 100~300kg of macromolecule emulsion, mineral blending
Expect 100~200kg, 4~10kg of water-reducing agent, 100~200kg of water；
Preferably, the cement is selected from one of ordinary portland cement and portland cement or a variety of；
Preferably, the sand is selected from one of river sand, sea sand, mountain sand and mechanism silica sand or a variety of；
Preferably, the macromolecule emulsion is selected from styrene-butadiene emulsion, carboxyl styrene emulsion, styrene-acrylic emulsion, acrylic resin modified cream
It is one or more in liquid, ethylene/vinyl acetate copolymer lotion；
It is highly preferred that the fineness modulus of the sand is 2.3~3.0, clay content or content of stone powder are less than 1% weight；
Preferably, the haydite is selected from one of broken stone type, spheroidal, conical haydites of book structure or a variety of, into after vacuum for 24 hours
Full water process；
Preferably, the mineral admixture is selected from one of flyash, slag powders, silicon ash or a variety of；
Preferably, the water-reducing agent is selected from one of naphthalene system and polycarboxylic acid or a variety of；More preferably polycarboxylic acid.
10. a kind of construction method of the water-proof system of railway concrete bridge floor, includes the following steps:
I. the railway concrete bridge floor for needing to be arranged water-proof system is cleaned out；
II. in the region laying water-proof coiled material cleaned out；
III. the polymer cement mortar is prepared in situ according to aforementioned preparation process, is poured waterproof roll table after the cleaning
Face, thickness 1cm or so；
IV. the lightweight precast concrete plate sequence is closely laid on the polymer cement mortar of casting, and to
Bridge deck drainage hole direction forms 0.3%~0.5% drainage grade；Gap 0.5cm between the lightweight precast concrete plate is left
The right side,
V.1d after, the gap between the lightweight precast concrete plate is filled and closed with waterproof sealing material；
Preferably, the waterproof sealing material is filleting glue.
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| CN112679190B (en) * | 2021-01-21 | 2022-07-05 | 广东碧通百年科技有限公司 | Reinforcing waterproof mortar for filling concrete bottom cavity |
| CN115180888A (en) * | 2022-05-31 | 2022-10-14 | 中国矿业大学 | Mine wind-blocking polymer cement mortar material and preparation method and application thereof |
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