CN102010223A - Early-strength soft foamed light concrete and filling soil combination - Google Patents
Early-strength soft foamed light concrete and filling soil combination Download PDFInfo
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- CN102010223A CN102010223A CN2010102164281A CN201010216428A CN102010223A CN 102010223 A CN102010223 A CN 102010223A CN 2010102164281 A CN2010102164281 A CN 2010102164281A CN 201010216428 A CN201010216428 A CN 201010216428A CN 102010223 A CN102010223 A CN 102010223A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—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
- C04B28/06—Aluminous cements
- C04B28/065—Calcium aluminosulfate cements, e.g. cements hydrating into ettringite
-
- 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
Abstract
The invention provides an early-strength soft foamed light concrete and filling soil combination comprising the following components in parts by weight: 50 to 80 parts of Portland cement, 10 to 40 parts of sulphate aluminium cement, 0.3 to 0.5 part of potassium chromium sulfate, 0.1 to 0.3 part of polyacrylamide, 0.5 to 1.5 parts of redispersible emulsion powder, 5 to 10 parts of composite modified ground calcium carbonate, 5 to 10 parts of coal ash, 10 to 30 parts of composite early strength stable emulsion and 48 to 50 parts of water. The early-strength soft foamed light concrete and filling soil combination is mainly used as filling soil in the emergency rescue of major projects of the tunnel, highway, railway and maintain landslide by adjusting the bubble quantity in the light soil. The full utilization of the early strength functions and the soft functions of the filling soil can largely shorten the construction period of the emergency rescue projects and enhance the shock strength of the filling soil.
Description
Technical field
The present invention relates to a kind of morning of the strong flexible bubble lightweight coagulation composition that bankets.
Background technology
Along with global climate warms and the frequent generation of natural disaster such as earthquake unusually, the destruction of causing for highway, tunnel and massif is very serious, in the rescue and relief work process, the material of some urgent needs must play a role at once, especially the problem of banketing of the maintenance urgent need of landslide and highway landslide and Tunnel Engineering and the time urgency of rescue and relief work break sloping problem to the freeze thawing of the required problem of banketing of rescue and relief work, severe cold area.Deal with problems and must adapt by novel material, solve a difficult technical problem and must rely on scientific and technological advances, sophistication comprises the application of novel material.The bubble lightweight coagulation banketed and was widely used recent years.In the rescue and relief work process, brought into play good effect.Therefore requiring has more type material to satisfy the timeliness and the urgency of emergency work.
Summary of the invention
The object of the present invention is to provide a kind of morning of the strong flexible bubble lightweight coagulation composition that bankets, with timeliness and the urgency that adapts to emergency work.
Morning of the present invention the strong flexible bubble lightweight coagulation composition that bankets, comprise the component of following weight part:
50～80 parts of silicate cements
10～40 parts of sulphur aluminium cement
0.3～0.5 part of potassium chromium sulfate
0.1～0.3 part of polyacrylamide
0.5～1.5 part of redispersable latex powder
5～10 parts in composite modified heavy lime carbonate
5～10 parts in flyash
10～30 parts of composite high-early strength stable emulsions
48～55 parts in water.
Described silicate cement is 42.5 grades of silicate cements or 52.5 grades of silicate cements, optional white elephant board cement with Shanghai Cement Plant;
Described sulphur aluminium cement is quick hardening sulphoaluminate cement, for example uses Tangshan six or nine cement company limiteds (six or nine board 42.5) quick hardening sulphoaluminate cement;
Described polyacrylamide is the negatively charged ion product, and selecting molecular weight for use is 1000～1,400 ten thousand, and is preferred 1300～1,400 ten thousand, for example the Shandong hundred million product YGYI-14H of Hong Kongnization worker company limited type products;
Redispersable latex powder is the multipolymer of a kind of ethene, vinyl acetate, for dry-mix latex powder commonly used, can select the commercially available prod for use, for example Shanghai dongsheng New Materials Co., Ltd's product 160A;
The composite high-early strength stable emulsion comprises the component of following weight part:
8～12 parts of animal gelatins
3～5 parts of Sodium dodecylbenzene sulfonatees
5～10 parts of SL complex accelerators
5～10 parts of calcium stearates
The SL complex accelerator is the organic complex accelerator of non-chlorine type, is the reaction product of diethanolamine, trolamine, phosphoric acid, boric acid, sodium hydroxide and calcium hydroxide; The preparation method is summarized as follows:
A mixes 5 weight part diethanolamine with the trolamine of 85 weight parts;
B mixes 20 weight part phosphoric acid with the boric acid of 50 weight parts;
C reacts A and B 1 hour down at 150 ℃, and the calcium hydroxide that adds 10 weight part sodium hydroxide and 50 weight parts again continues reaction 1 hour, and product is a yellow jelly, and cooling back hardening grinds to form powdery, is the SL complex accelerator.Can select the commercially available prod for use, for example the SL of Shanghai Ya Long Science and Technology Ltd. series product;
The preparation method of composite high-early strength stable emulsion:
Under normal temperature condition, animal gelatin is dissolved in the 80 weight part deionized waters, and then adding Sodium dodecylbenzene sulfonate, SL complex accelerator and calcium stearate, stirred 1～2 hour, and used a step valve by high pressure homogenizer then, pressure is that 30～40 normal atmosphere homogeneous can obtain product;
Composite modified heavy lime carbonate is the mixture of silane coupling agent of water-ground limestone, 1～3 weight part stearic acid and 2～4 weight parts of 100 weight parts;
The preparation method is as follows: under 80 ℃～90 ℃, the adding weight concentration is 5～10% silane connection agent ethanolic soln, and then adds stearic acid fusing with water-ground limestone, and dispersed with stirring got final product in 1～2 hour;
The preferred N-2-of silane coupling agent (aminoethyl)-3-aminopropyl trimethoxysilane, Nanjing connection silication chemical product.
Morning of the present invention, the strong flexible bubble lightweight coagulation preparation of compositions method of banketing was foolproof, and each component is mixed, and stirred to get final product.
Morning of the present invention the strong flexible bubble lightweight coagulation composition that bankets; the composite high-early strength stable emulsion adopts machine thing hydrophober to carry out having carried out composite modified with hardening accelerator; improved the synergistic effect of emulsion; make the emulsion uniform mixing among sand-cement slurry; gelatin itself is a kind of good whipping agent; bubble had extraordinary protectiveness during emulsion was banketed to the bubble lightweight coagulation; especially build with pipe conveying procedure in; the bubble loss amount is few; the unit weight that the bubble lightweight coagulation is banketed is highly stable. gelatin; the potassium chromium sulfate polyacrylamide; latex powder; crosslinking reaction takes place to mix in modified heavy calcium carbonate in mortar; after the mortar aquation, can form very flexible glued membrane; strengthened bonding force; especially greatly improve folding strength, can alleviate the anti deformational force that bankets greatly.
Morning of the present invention, the strong flexible bubble lightweight coagulation composition that bankets by regulating the bubbles volume in the light soils, was mainly used in banketing that the emergency work of tunnel, motorway, subway, landslide Important Project uses; Make full use of the early strength function and the flexible effect of banketing, can shorten the emergency work construction time greatly and strengthen the shock strength of banketing.
Embodiment
Embodiment 1
Animal gelatin with 8 weight parts under normal temperature condition is dissolved in the 80 weight part deionized waters, reheat to 50 ℃ after 20 minutes, stir and treated that gelatin fully dissolved in 30 minutes, and then add the Sodium dodecylbenzene sulfonate of 3 weight parts, after 30 minutes, add SL complex accelerator 5 weight parts, add calcium stearate 10 weight parts again after 30 minutes again, stirred 1 hour, use a step valve by high pressure homogenizer then, pressure is 30 normal atmosphere homogeneous secondaries, and the granularity of calcium stearate is controlled at below the 100nm, weight solid content 24.8%, viscosity 165cps (1
#Rotor), PH 8.1, obtain the composite high-early strength stable emulsion;
Wherein:
Composite modified heavy lime carbonate is the mixture of silane coupling agent of water-ground limestone, 3 weight part stearic acid and 4 weight parts of 100 weight parts;
The preparation method is as follows: under 90 ℃, the adding weight concentration is 10% silane connection agent ethanolic soln, and then adds stearic acid fusing with water-ground limestone, and dispersed with stirring can obtain composite modified heavy lime carbonate in 2 hours; Silane coupling agent is N-2-(aminoethyl)-3-aminopropyl trimethoxysilane.
The strong flexible bubble lightweight coagulation prescription of composition that bankets early:
Ordinary Portland cement 60 weight parts, sulphur aluminium cement 30 weight parts, potassium chromium sulfate 0.3 weight part, polyacrylamide 0.1 weight part, redispersable latex powder 0.5 weight part, composite modified heavy lime carbonate 5 weight parts, composite high-early strength stable emulsion 10 weight parts, flyash 5 weight parts, water 48 weight parts.
Molecular Weight for Polyacrylamide is 1,000 ten thousand;
The preparation method: each component is mixed, and stirring can obtain product.
Embodiment 2
Animal gelatin with 9 weight parts under normal temperature condition is dissolved in the 80 weight part deionized waters, reheat to 55 ℃ after 20 minutes, stir and treated that gelatin fully dissolved in 30 minutes, and then add the Sodium dodecylbenzene sulfonate of 4 weight parts, after 30 minutes, add 5 parts of SL complex accelerators, add calcium stearate 9 weight parts again after 30 minutes again, stirred 1 hour, use a step valve by high pressure homogenizer then, pressure is 40 normal atmosphere homogeneous secondaries, and the granularity of calcium stearate is controlled at below the 100nm, weight solid content 24.1%, viscosity 172cps (1
#Rotor), PH 7.9, obtain the composite high-early strength stable emulsion.
Composite modified heavy lime carbonate is the mixture of silane coupling agent of water-ground limestone, 1 weight part stearic acid and 2 weight parts of 100 weight parts;
The preparation method is as follows: under 80 ℃, the adding weight concentration is 5% silane connection agent ethanolic soln, and then adds stearic acid fusing with water-ground limestone, and dispersed with stirring can obtain composite modified heavy lime carbonate in 1～2 hour; Silane coupling agent is N-2-(aminoethyl)-3-aminopropyl trimethoxysilane.
Ordinary Portland cement 50 weight parts, sulphur aluminium cement 40 weight parts, potassium chromium sulfate 0.4 weight part, polyacrylamide 0.2 weight part, redispersable latex powder 1 weight part, composite modified heavy lime carbonate 7.5 weight parts, composite high-early strength stable emulsion 20 weight parts, flyash 7.5 weight parts, water 42 weight parts.
Molecular Weight for Polyacrylamide is 1,400 ten thousand;
The preparation method: each component is mixed, and stirring can obtain product.
Embodiment 3
Animal gelatin with 10 weight parts under normal temperature condition is dissolved in the 80 weight part deionized waters, reheat to 60 ℃ after 20 minutes, stir and treated that gelatin fully dissolved in 30 minutes, and then add the Sodium dodecylbenzene sulfonate of 5 weight parts, after 30 minutes, add SL complex accelerator 5 weight parts, add calcium stearate 8 weight parts again after 30 minutes again, stirred 1 hour, use a step valve by high pressure homogenizer then, pressure is 40 normal atmosphere homogeneous secondaries, and the granularity of calcium stearate is controlled at below the 100nm. solid content 23.9%, viscosity 159cps (1
#Rotor), PH 8.2, obtain the composite high-early strength stable emulsion.
Composite modified heavy lime carbonate is with embodiment 1.
Ordinary Portland cement 70 weight parts, sulphur aluminium cement 20 weight parts, potassium chromium sulfate 0.5 weight part, polyacrylamide 0.3 weight part, redispersable latex powder 1.5 weight parts, composite modified heavy lime carbonate 10 weight parts, composite high-early strength stable emulsion 30 weight parts, flyash 10 weight parts, water 40 weight parts.
Molecular Weight for Polyacrylamide is 1,300 ten thousand;
The preparation method: each component is mixed, and stirring can obtain product.
Embodiment 4
Animal gelatin with 11 weight parts under normal temperature condition is dissolved in the 80 weight part deionized waters, reheat to 55 ℃ after 20 minutes, stir and treated that gelatin fully dissolved in 30 minutes, and then add the Sodium dodecylbenzene sulfonate of 3.5 weight parts, after 30 minutes, add SL complex accelerator 5 weight parts, add calcium stearate 7 weight parts again after 30 minutes again, stirred 1 hour, use a step valve by high pressure homogenizer then, pressure is 40 normal atmosphere homogeneous secondaries, and the granularity of calcium stearate is controlled at below the 100nm. solid content 24.6%, viscosity 161cps (1
#Rotor), PH 8.3, obtain the composite high-early strength stable emulsion.
Composite modified heavy lime carbonate is with embodiment 2.
Ordinary Portland cement 80 weight parts, sulphur aluminium cement 10 weight parts, potassium chromium sulfate 0.35 weight part, polyacrylamide 0.15 weight part, redispersable latex powder 0.75 weight part, composite modified heavy lime carbonate 6 weight parts, composite high-early strength stable emulsion 15 weight parts, flyash 9 weight parts, water 42 weight parts.
Molecular Weight for Polyacrylamide is 1,300 ten thousand;
The preparation method: each component is mixed, and stirring can obtain product.
Embodiment 5
Animal gelatin with 12 weight parts under normal temperature condition is dissolved in the 80 weight part deionized waters, reheat to 50 ℃ after 20 minutes, stir and treated that gelatin fully dissolved in 30 minutes, and then add the Sodium dodecylbenzene sulfonate of 4.5 weight parts, after 30 minutes, add SL complex accelerator 5 weight parts, add calcium stearate 6 weight parts again after 30 minutes again, stirred 1 hour, use a step valve by high pressure homogenizer then, pressure is 30 normal atmosphere homogeneous secondaries, and the granularity of calcium stearate is controlled at below the 100nm. solid content 24.2%, viscosity 167cps (1
#Rotor), PH 8.2, obtain the composite high-early strength stable emulsion.
Composite modified heavy lime carbonate is with embodiment 1.
Ordinary Portland cement 65 weight parts, sulphur aluminium cement 25 weight parts, potassium chromium sulfate 0.45 weight part, polyacrylamide 0.25 weight part, redispersable latex powder 1.25 weight parts, composite modified heavy lime carbonate 8 weight parts, composite high-early strength stable emulsion 25 weight parts, flyash 6 weight parts, water 41 weight parts.
Molecular Weight for Polyacrylamide is 1,400 ten thousand;
The preparation method: each component is mixed, and stirring can obtain product.
Embodiment 6
Animal gelatin with 10 weight parts under normal temperature condition is dissolved in the 80 weight part deionized waters, reheat to 60 ℃ after 20 minutes, stir and treated that gelatin fully dissolved in 30 minutes, and then add the Sodium dodecylbenzene sulfonate of 3.5 weight parts, after 30 minutes, add SL complex accelerator 5 weight parts, add calcium stearate 5 weight parts again after 30 minutes again, stirred 1 hour, use a step valve by high pressure homogenizer then, pressure is 35 normal atmosphere homogeneous secondaries, and the granularity of calcium stearate is controlled at below the 100nm. solid content 24.3%, viscosity 161cps (1
#Rotor), PH 7.9, obtain the composite high-early strength stable emulsion.
Composite modified heavy lime carbonate is with embodiment 2.
Ordinary Portland cement 55 weight parts, sulphur aluminium cement 35 weight parts, potassium chromium sulfate 0.5 weight part, polyacrylamide 0.3 weight part, redispersable latex powder 1.5 weight parts, composite modified heavy lime carbonate 8 weight parts, composite high-early strength stable emulsion 25 weight parts, flyash 9 weight parts, water 43 weight parts.
Molecular Weight for Polyacrylamide is 1,400 ten thousand.
Embodiment 7
Contrast sample prescription: ordinary Portland cement 80 weight parts, 20 parts of sulphur aluminium cement, 57 parts in water.Add 1.9 liters of bubbles according to per 1 kilogram of dry powder, bubble density is 50 grams per liters.
Testing method: method that new technology one book (People's Transportation Press) introduces is measured to wait the bubble mixing light write to banket with reference to Mr. Chen Zhongping.
| 28 days ultimate compression strength Mpa | 2.21 | 2.18 | 2.16 | 2.23 | 2.24 | 2.19 | 2.24 |
| 24 hours folding strength Mpa | 0.23 | 0.24 | 0.26 | 0.24 | 0.20 | 0.23 | 0.16 |
| 3 days folding strength Mpa | 0.32 | 0.36 | 0.32 | 0.32 | 0.32 | 0.32 | 0.21 |
| 28 days folding strength Mpa | 0.37 | 0.40 | 0.39 | 0.38 | 0.38 | 0.39 | 0.26 |
| Freeze-thawing resistant ultimate compression strength Mpa | 2.11 | 2.01 | 2.04 | 2.03 | 2.10 | 2.09 | 2.11 |
| Freeze-thawing resistant folding strength Mpa | 0.33 | 0.35 | 0.32 | 0.31 | 0.34 | 0.34 | 0.25 |
Can see from table: adopt the strong flexible bubble lightweight coagulation composition that bankets morning of the present invention, ultimate compression strength and folding strength obviously improve.
Claims (4)
1. the strong flexible bubble lightweight coagulation composition that bankets early is characterized in that, comprises the component of following weight part:
50～80 parts of silicate cements
10～40 parts of sulphur aluminium cement
0.3～0.5 part of potassium chromium sulfate
0.1～0.3 part of polyacrylamide
0.5～1.5 part of redispersable latex powder
5～10 parts in composite modified heavy lime carbonate
5～10 parts in flyash
10～30 parts of composite high-early strength stable emulsions
48～55 parts in water.
2. morning according to claim 1, the strong flexible bubble lightweight coagulation composition that bankets is characterized in that the molecular weight of described polyacrylamide is 1000～1,400 ten thousand.
3. morning according to claim 1, the strong flexible bubble lightweight coagulation composition that bankets is characterized in that, described composite high-early strength stable emulsion comprises the component of following weight part:
8～12 parts of animal gelatins
3～5 parts of Sodium dodecylbenzene sulfonatees
5～10 parts of SL complex accelerators
5～10 parts of calcium stearates
The SL complex accelerator is the reaction product of diethanolamine, trolamine, phosphoric acid, boric acid, sodium hydroxide and calcium hydroxide.
4. morning according to claim 1, the strong flexible bubble lightweight coagulation composition that bankets is characterized in that, composite modified heavy lime carbonate is the mixture of silane coupling agent of water-ground limestone, 1～3 weight part stearic acid and 2～4 weight parts of 100 weight parts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102164281A CN102010223B (en) | 2010-06-29 | 2010-06-29 | Early-strength soft foamed light concrete and filling soil combination |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102164281A CN102010223B (en) | 2010-06-29 | 2010-06-29 | Early-strength soft foamed light concrete and filling soil combination |
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| CN102010223A true CN102010223A (en) | 2011-04-13 |
| CN102010223B CN102010223B (en) | 2013-03-06 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103214262A (en) * | 2013-03-28 | 2013-07-24 | 佛山市森科能源科技开发有限公司 | Comprehensive foamed concrete property-modifying additive, preparation method thereof and concrete |
| CN103964761A (en) * | 2014-04-04 | 2014-08-06 | 黄裕兵 | Anti-cracking cement mortar |
| CN105036646A (en) * | 2015-07-09 | 2015-11-11 | 阜阳三环管桩有限公司 | Heavy-weight high-load concrete tubular pile and preparation method therefor |
| CN111926830A (en) * | 2020-07-25 | 2020-11-13 | 河南地矿集团中昊建设工程有限公司 | Method for preventing and controlling disaster of light-weight soil landslide land |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214262A (en) * | 2013-03-28 | 2013-07-24 | 佛山市森科能源科技开发有限公司 | Comprehensive foamed concrete property-modifying additive, preparation method thereof and concrete |
| CN103214262B (en) * | 2013-03-28 | 2014-11-05 | 佛山市森科能源科技开发有限公司 | Comprehensive foamed concrete property-modifying additive, preparation method thereof and concrete |
| CN103964761A (en) * | 2014-04-04 | 2014-08-06 | 黄裕兵 | Anti-cracking cement mortar |
| CN103964761B (en) * | 2014-04-04 | 2015-11-04 | 黄裕兵 | A kind of cracking-resistant cement mortar |
| CN105036646A (en) * | 2015-07-09 | 2015-11-11 | 阜阳三环管桩有限公司 | Heavy-weight high-load concrete tubular pile and preparation method therefor |
| CN111926830A (en) * | 2020-07-25 | 2020-11-13 | 河南地矿集团中昊建设工程有限公司 | Method for preventing and controlling disaster of light-weight soil landslide land |
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