CN114988911A - Light cement-based bubble light soil grouting material and preparation method thereof - Google Patents
Light cement-based bubble light soil grouting material and preparation method thereof Download PDFInfo
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- CN114988911A CN114988911A CN202210816424.XA CN202210816424A CN114988911A CN 114988911 A CN114988911 A CN 114988911A CN 202210816424 A CN202210816424 A CN 202210816424A CN 114988911 A CN114988911 A CN 114988911A
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- 239000000463 material Substances 0.000 title claims abstract description 104
- 239000004568 cement Substances 0.000 title claims abstract description 95
- 239000002689 soil Substances 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 239000004088 foaming agent Substances 0.000 claims abstract description 63
- 239000010881 fly ash Substances 0.000 claims abstract description 45
- 239000000843 powder Substances 0.000 claims abstract description 37
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 35
- 239000011707 mineral Substances 0.000 claims abstract description 35
- 239000000203 mixture Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000002270 dispersing agent Substances 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims description 38
- 238000003756 stirring Methods 0.000 claims description 35
- 239000006260 foam Substances 0.000 claims description 32
- 239000011268 mixed slurry Substances 0.000 claims description 32
- 150000001875 compounds Chemical class 0.000 claims description 31
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 29
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 29
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 29
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 29
- 238000005187 foaming Methods 0.000 claims description 18
- 239000003292 glue Substances 0.000 claims description 18
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 4
- 239000011398 Portland cement Substances 0.000 claims description 4
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- 229920002472 Starch Polymers 0.000 claims description 2
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- 102000004169 proteins and genes Human genes 0.000 claims description 2
- 108090000623 proteins and genes Proteins 0.000 claims description 2
- 239000000344 soap Substances 0.000 claims description 2
- 239000008107 starch Substances 0.000 claims description 2
- 235000019698 starch Nutrition 0.000 claims description 2
- 239000000499 gel Substances 0.000 claims 3
- 239000002994 raw material Substances 0.000 abstract description 32
- 230000000694 effects Effects 0.000 abstract description 12
- 230000009044 synergistic interaction Effects 0.000 abstract description 3
- 230000008092 positive effect Effects 0.000 abstract description 2
- -1 ethoxylated alkyl sodium sulfate Chemical compound 0.000 description 30
- 230000000052 comparative effect Effects 0.000 description 24
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 14
- 239000004721 Polyphenylene oxide Substances 0.000 description 14
- 235000010489 acacia gum Nutrition 0.000 description 14
- 239000001785 acacia senegal l. willd gum Substances 0.000 description 14
- 238000007865 diluting Methods 0.000 description 14
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 14
- 229920000570 polyether Polymers 0.000 description 14
- 229920001296 polysiloxane Polymers 0.000 description 14
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 14
- 229910052938 sodium sulfate Inorganic materials 0.000 description 14
- 235000011152 sodium sulphate Nutrition 0.000 description 14
- 235000019864 coconut oil Nutrition 0.000 description 13
- 239000003240 coconut oil Substances 0.000 description 13
- 239000006185 dispersion Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 230000002195 synergetic effect Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 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
- C04B28/06—Aluminous cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—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
-
- 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
- C04B2111/40—Porous or lightweight 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
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a light cement-based bubble light soil grouting material and a preparation method thereof, wherein the grouting material mainly comprises a mixture and water; wherein, each 100 parts of the mixture comprises 60-85 parts of cement, 10-35 parts of fly ash and/or mineral powder, 3-9 parts of foaming agent and 0.1-0.5 part of anti-dispersant; in the grouting material, the water-to-gel ratio of water to the gel material in the mixture is 0.6; the density of the grouting material is 1150-1220kg/m 3 (ii) a The grouting material has good performance under the condition of adding a large amount of fly ash and/or mineral powder by optimizing the proportion and density of the raw materials to generate a synergistic interaction effect among the raw materials, so that the grouting material achieves low cost and high performanceThe grouting material has the advantages of good effect and positive effect on enlarging the application range of the cement-based bubble light soil grouting material.
Description
Technical Field
The invention relates to the field of building materials, in particular to the field of grouting materials, and particularly relates to a micro-heavy cement-based bubble light soil grouting material and a preparation method thereof.
Background
With the vigorous development of road construction and bridge construction in China, more and more road cavities and subsidences are encountered in the construction process, so that a grouting material capable of being used for backfilling a subsidence area is researched and developed in large quantities and is applied. However, the environments of the holes and the subsidence are various, and the performance of the grouting material is different in order to adapt to different application environments, so that different types of grouting materials appear. The commonly used grouting materials can be divided into water glass grouting materials, cement-based grouting materials, polymer grouting materials and the like according to raw materials.
The cement-based grouting material is the grouting material with the lowest cost and the widest application range, and is widely applied to various grouting environments. However, the common cement-based grouting material has the problems of poor erosion resistance, poor rheological property, poor corrosion resistance, easy pollution to construction environment and easy dispersion of grouting, and the application of the cement-based grouting material in special environment is severely limited. Meanwhile, in the application process of the cement-based grouting material, the fact that the existing cement-based bubble light soil grouting material has unreasonable raw material selection and proportioning, so that the cement-based bubble light soil grouting material with good performance is generally high in cost (large in cement addition), and the cement-based bubble light soil grouting material with low cost is poor in performance, so that the large-scale application of the cement-based bubble light soil grouting material is limited; therefore, how to obtain the cement-based bubble light soil grouting material with low cost and high performance has a positive effect on expanding the application range of the cement-based bubble light soil grouting material.
Disclosure of Invention
The invention aims to overcome the defects of low performance and high cost of the existing cement-based bubble light soil grouting material, and provides a micro-heavy cement-based bubble light soil grouting material and a preparation method thereof.
In order to realize the aim, the invention provides a light cement-based bubble light soil grouting material which mainly comprises a mixture and water; wherein each 100 parts of the mixture comprises 60-85 parts of cement, 10-35 parts of fly ash and/or mineral powder, 3-9 parts of foaming agent and 0.1-0.5 part of anti-dispersant; in the grouting material, the water-to-gel ratio of water to the gel material in the mixture is 0.6; the density of the grouting material is 1150-1220kg/m 3 。
The invention relates to a micro-heavy cement-based bubble light soil grouting material, which can achieve better matching effect among raw materials by pertinently optimizing the composition and the proportion of the raw materials and matching with a specific water-cement ratio and density, so as to form a synergistic interaction effect, remarkably improve the cohesiveness of the bubble light soil grouting material, remarkably reduce the cost and facilitate the expansion of the application field and the use amount of the cement-based bubble light soil grouting material.
Wherein, preferably, each 100 parts of the mixture comprises 65 parts of cement, 15 parts of fly ash, 15 parts of mineral powder, 4.85 parts of foaming agent and 0.15 part of anti-dispersant, and the water-to-glue ratio is 0.6; the prepared grouting material has better performance by the preferable mixture combination and proportion.
Wherein, preferably, the cement is any one of portland cement, chlorate cement, sulphoaluminate cement, ferro-aluminate cement, fluoroaluminate cement and phosphate cement; the prepared grouting material has better performance due to the optimized cement type; most preferably, the cement is sulphoaluminate cement.
Wherein, preferably, the fly ash is C-class fly ash; the preferred fly ash type has better gelling property and better performance of grouting materials.
Wherein, preferably, the fly ash is first-grade fly ash; the fineness of the fly ash can influence the fluidity, the dispersibility and the gelatination of the grouting material, and the preferred grade of the fly ash is better in cohesiveness of the grouting material.
Wherein, preferably, the mineral powder is S105 grade mineral powder; the preferred ore powder grade number is higher, the activity index is higher, the specific surface area is larger, and the cohesiveness of the grouting material is better.
Wherein, preferably, the foaming agent is any one of rosin acid soap foaming agent, protein foaming agent and compound foaming agent; the preferable type of the foaming agent has better foaming effect and does not influence the performance of the grouting material; most preferably, the foaming agent is a compound cement foaming agent.
Wherein, preferably, the anti-dispersant is any one of carboxymethyl cellulose, starch glue, polyethylene oxide and polyvinyl alcohol; the preferable anti-dispersing agent has better anti-dispersing effect, is beneficial to the formation of bubbles and has better cohesiveness of the grouting material; most preferably, the anti-dispersant is carboxymethyl cellulose.
In order to achieve the above object, the present invention further provides a method for preparing a lightweight cement-based bubble soil grouting material, comprising the following steps:
(1) mixing and stirring cement, fly ash and/or mineral powder, an anti-dispersant and water according to a mixing ratio for 50-180s to obtain mixed slurry; mixing and dissolving a foaming agent and water, and preparing foam by using a foaming device;
(2) and mixing and stirring the mixed slurry and the foam uniformly to obtain the lightweight soil grouting material with the light cement-based bubbles.
Wherein, in the step (1), the mixing and stirring speed is preferably 50-80 r/min; the preferable stirring speed has better stirring effect, more uniform mixing and better cohesiveness of the grouting material.
Wherein, in the step (1), the foaming agent and the water are mixed and dissolved according to the mass ratio of 1: 60; the foaming effect of the foaming agent is better in the preferred mass ratio.
Compared with the prior art, the invention has the beneficial effects that:
1. the grouting material provided by the invention has the advantages that the composition and the proportion of the raw materials are optimized in a targeted manner and are matched with a specific water-glue ratio and density, so that a better matching effect is achieved among the raw materials, a synergistic interaction effect is formed, and the cohesiveness of the grouting material is obviously improved.
2. The grouting material of the invention is added with a large amount of fly ash and/or mineral powder, the cost of the grouting material is reduced by more than 15%, and the grouting material has the advantages of low cost and high performance, and is beneficial to large-scale application of the grouting material of the invention.
3. The grouting material has higher density than water, can be used for underground high-water-level engineering construction, and has wider application range.
4. The preparation method of the grouting material is simple and reliable, and the obtained grouting material is stable in performance and suitable for large-scale application.
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments. It should be understood that the scope of the above-described subject matter of the present invention is not limited to the following examples, and any technique realized based on the contents of the present invention is within the scope of the present invention.
Example 1
The raw material ratio is as follows: 65 parts of fast hardening sulphoaluminate cement, 15 parts of class C first-grade fly ash, 15 parts of S105-grade mineral powder, 4.85 parts of a compound type foaming agent (the formula is 12 parts of sodium dodecyl benzene sulfonate, 8 parts of ethoxylated alkyl sodium sulfate, 8 parts of coconut oil amido amine oxide, 8 parts of silicone polyether, 10 parts of ethylene glycol butyl ether, 1 part of Arabic gum and 52 parts of water), and 0.15 part of carboxymethyl cellulose; the water-to-glue ratio is 0.6;
(1) pouring the quick-hardening sulphoaluminate cement, the fly ash, the mineral powder and the carboxymethyl cellulose into a stirrer according to the mixing proportion of 0.6 of the water-gel ratio and stirring for 90s to obtain mixed slurry; diluting a compound type foaming agent into a foaming agent solution according to the proportion of 1:60, and preparing into foam through a foaming machine;
(2) mixing the mixed slurry with foam, and stirring to obtain a mixture with a density of 1180kg/m 3 The light soil grouting material with the light bubbles based on the micro-heavy cement.
Example 2
The raw material ratio is as follows: 85 parts of PO 42.5 ordinary portland cement, 10 parts of S105-grade mineral powder, 4.5 parts of a compound foaming agent (the formula is 12 parts of sodium dodecyl benzene sulfonate, 8 parts of ethoxylated alkyl sodium sulfate, 8 parts of coconut oil amide amine oxide, 8 parts of silicone polyether, 10 parts of ethylene glycol butyl ether, 1 part of Arabic gum and 52 parts of water), and 0.5 part of carboxymethyl cellulose; the water-to-glue ratio is 0.6;
(1) pouring the quick-hardening sulphoaluminate cement, the fly ash, the mineral powder and the carboxymethyl cellulose into a stirrer according to the mixing proportion of 0.6 of the water-gel ratio and stirring for 180s to obtain mixed slurry; diluting a compound type foaming agent into a foaming agent solution according to the proportion of 1:60, and preparing into foam through a foaming machine;
(2) mixing the mixed slurry with foam, and stirring to obtain a mixture with a density of 1200kg/m 3 The light-weight soil grouting material with the micro-heavy cement-based bubbles.
Example 3
The raw material ratio is as follows: 60 parts of PO 42.5 ordinary portland cement, 30.5 parts of C-type first-grade fly ash, 9 parts of a compound type foaming agent (a formula comprises 12 parts of sodium dodecyl benzene sulfonate, 8 parts of ethoxylated alkyl sodium sulfate, 8 parts of coconut oil amido amine oxide, 8 parts of silicone polyether, 10 parts of butyl cellosolve, 1 part of Arabic gum and 52 parts of water), and 0.5 part of carboxymethyl cellulose; the water-to-glue ratio is 0.6;
(1) pouring the quick-hardening sulphoaluminate cement, the fly ash, the mineral powder and the carboxymethyl cellulose into a stirrer according to the mixing proportion of 0.6 of the water-gel ratio and stirring for 50s to obtain mixed slurry; diluting a compound type foaming agent into a foaming agent solution according to the proportion of 1:60, and preparing into foam through a foaming machine;
(2) mixing the mixed slurry with foam, and stirring to obtain a mixture with a density of 1150kg/m 3 The light soil grouting material with the light bubbles based on the micro-heavy cement.
Example 4
The raw material ratio is as follows: 70 parts of chlorate cement, 11.9 parts of class C first-grade fly ash, 15 parts of S105-grade mineral powder, 3 parts of a compound foaming agent (formula: 12 parts of sodium dodecyl benzene sulfonate, 8 parts of ethoxylated alkyl sodium sulfate, 8 parts of coconut oil amido amine oxide, 8 parts of silicone polyether, 10 parts of butyl cellosolve, 1 part of Arabic gum and 52 parts of water), and 0.1 part of polyoxyethylene; the water-to-glue ratio is 0.6;
(1) pouring the quick-hardening sulphoaluminate cement, the fly ash, the mineral powder and the carboxymethyl cellulose into a stirrer according to the mixing proportion of 0.6 of the water-gel ratio and stirring for 120s to obtain mixed slurry; diluting a compound type foaming agent into a foaming agent solution according to the proportion of 1:60, and preparing into foam through a foaming machine;
(2) mixing the mixed slurry with foam, and stirring to obtain a mixture with a density of 1220kg/m 3 The light soil grouting material with the light bubbles based on the micro-heavy cement.
Example 5
The raw material ratio is as follows: 60 parts of chlorate cement, 25 parts of class-C first-grade fly ash, 10 parts of S105-grade mineral powder, 4.7 parts of a compound foaming agent (a formula is 12 parts of sodium dodecyl benzene sulfonate, 8 parts of ethoxylated alkyl sodium sulfate, 8 parts of coconut oil amido amine oxide, 8 parts of silicone polyether, 10 parts of butyl cellosolve, 1 part of Arabic gum and 52 parts of water), and 0.3 part of polyoxyethylene; the water-to-glue ratio is 0.6;
(1) pouring the quick-hardening sulphoaluminate cement, the fly ash, the mineral powder and the carboxymethyl cellulose into a stirrer according to the mixing proportion of 0.6 of the water-gel ratio and stirring for 120s to obtain mixed slurry; diluting a compound type foaming agent into a foaming agent solution according to the proportion of 1:60, and preparing into foam through a foaming machine;
(2) mixing the mixed slurry with foam, and stirring to obtain a mixture with a density of 1180kg/m 3 The light soil grouting material with the light bubbles based on the micro-heavy cement.
Comparative example 1
The raw material ratio is as follows: 95 parts of quick-hardening sulphoaluminate cement, 4.85 parts of compound foaming agent (formula: 12 parts of sodium dodecyl benzene sulfonate, 8 parts of ethoxylated alkyl sodium sulfate, 8 parts of cocoanut oil amido amine oxide, 8 parts of silicone polyether, 10 parts of butyl cellosolve, 1 part of Arabic gum and 52 parts of water) and 0.15 part of carboxymethyl cellulose; the water-to-glue ratio is 0.6;
(1) pouring the quick-hardening sulphoaluminate cement, the fly ash, the mineral powder and the carboxymethyl cellulose into a stirrer according to the mixing proportion of 0.6 of the water-gel ratio and stirring for 200s to obtain mixed slurry; diluting a compound type foaming agent into a foaming agent solution according to the proportion of 1:60, and preparing into foam through a foaming machine;
(2) mixing the mixed slurry with foam, and stirring to obtain a mixture with a density of 1180kg/m 3 The light soil grouting material with the light bubbles based on the micro-heavy cement.
Comparative example 2
The raw material ratio is as follows: 90 parts of quick-hardening sulphoaluminate cement, 5 parts of class-C first-grade fly ash, 4.85 parts of a compound foaming agent (formula: 12 parts of sodium dodecyl benzene sulfonate, 8 parts of ethoxylated alkyl sodium sulfate, 8 parts of coconut oil amide amine oxide, 8 parts of silicone polyether, 10 parts of butyl cellosolve, 1 part of Arabic gum and 52 parts of water) and 0.15 part of carboxymethyl cellulose; the water-to-glue ratio is 0.6;
(1) pouring the quick-hardening sulphoaluminate cement, the fly ash, the mineral powder and the carboxymethyl cellulose into a stirrer according to the mixing proportion of 0.6 of the water-gel ratio and stirring for 90s to obtain mixed slurry; diluting a compound type foaming agent into a foaming agent solution according to the proportion of 1:60, and preparing into foam through a foaming machine;
(2) mixing the mixed slurry with foam, and stirring to obtain a mixture with a density of 1180kg/m 3 The light soil grouting material with the light bubbles based on the micro-heavy cement.
Comparative example 3
The raw material ratio is as follows: 90 parts of quick-hardening sulphoaluminate cement, 5 parts of S105-grade mineral powder, 4.85 parts of a compound foaming agent (the formula is 12 parts of sodium dodecyl benzene sulfonate, 8 parts of ethoxylated alkyl sodium sulfate, 8 parts of coconut oil amide amine oxide, 8 parts of silicone polyether, 10 parts of ethylene glycol butyl ether, 1 part of Arabic gum and 52 parts of water) and 0.15 part of carboxymethyl cellulose; the water-to-glue ratio is 0.6;
(1) pouring the quick-hardening sulphoaluminate cement, the fly ash, the mineral powder and the carboxymethyl cellulose into a stirrer according to the mixing proportion of 0.6 of the water-gel ratio and stirring for 90s to obtain mixed slurry; diluting a compound type foaming agent into a foaming agent solution according to the proportion of 1:60, and preparing into foam through a foaming machine;
(2) mixing the mixed slurry with foam, and stirring to obtain a mixture with a density of 1180kg/m 3 The light soil grouting material with the light bubbles based on the micro-heavy cement.
Comparative example 4
The raw material ratio is as follows: 65 parts of fast hardening sulphoaluminate cement, 15 parts of class C first-grade fly ash, 15 parts of S105-grade mineral powder, 4.85 parts of a compound type foaming agent (the formula is 12 parts of sodium dodecyl benzene sulfonate, 8 parts of ethoxylated alkyl sodium sulfate, 8 parts of coconut oil amido amine oxide, 8 parts of silicone polyether, 10 parts of ethylene glycol butyl ether, 1 part of Arabic gum and 52 parts of water), and 0.15 part of carboxymethyl cellulose; the water-to-glue ratio is 0.5;
(1) pouring the quick-hardening sulphoaluminate cement, the fly ash, the mineral powder and the carboxymethyl cellulose into a stirrer according to the mixing proportion of 0.5 of the water-gel ratio and stirring for 120s to obtain mixed slurry; diluting a compound type foaming agent into a foaming agent solution according to the proportion of 1:60, and preparing into foam through a foaming machine;
(2) mixing the mixed slurry with foam, and stirring to obtain a mixture with a density of 1180kg/m 3 The light soil grouting material with the light bubbles based on the micro-heavy cement.
Comparative example 5
The raw material ratio is as follows: 65 parts of fast hardening sulphoaluminate cement, 15 parts of class C first-grade fly ash, 15 parts of S105-grade mineral powder, 4.85 parts of a compound type foaming agent (the formula is 12 parts of sodium dodecyl benzene sulfonate, 8 parts of ethoxylated alkyl sodium sulfate, 8 parts of coconut oil amido amine oxide, 8 parts of silicone polyether, 10 parts of ethylene glycol butyl ether, 1 part of Arabic gum and 52 parts of water), and 0.15 part of carboxymethyl cellulose; the water-to-glue ratio is 0.7;
(1) pouring the quick-hardening sulphoaluminate cement, the fly ash, the mineral powder and the carboxymethyl cellulose into a stirrer according to the mixing proportion of 0.7 of the water-gel ratio and stirring for 80s to obtain mixed slurry; diluting a compound type foaming agent into a foaming agent solution according to the proportion of 1:60, and preparing into foam through a foaming machine;
(2) mixing the mixed slurry with foam, and stirring to obtain a mixture with a density of 1180kg/m 3 The light soil grouting material with the light bubbles based on the micro-heavy cement.
Comparative example 6
The raw material ratio is as follows: 65 parts of fast hardening sulphoaluminate cement, 15 parts of class C first-grade fly ash, 15 parts of S105-grade mineral powder, 4.85 parts of a compound type foaming agent (the formula is 12 parts of sodium dodecyl benzene sulfonate, 8 parts of ethoxylated alkyl sodium sulfate, 8 parts of coconut oil amido amine oxide, 8 parts of silicone polyether, 10 parts of ethylene glycol butyl ether, 1 part of Arabic gum and 52 parts of water), and 0.15 part of carboxymethyl cellulose; the water-to-glue ratio is 0.6;
(1) pouring the quick-hardening sulphoaluminate cement, the fly ash, the mineral powder and the carboxymethyl cellulose into a stirrer according to the mixing proportion of 0.6 of the water-gel ratio and stirring for 150s to obtain mixed slurry; diluting a compound type foaming agent into a foaming agent solution according to the proportion of 1:60, and preparing into foam through a foaming machine;
(2) mixing the mixed slurry with foam, and stirring to obtain a mixture with a density of 1120kg/m 3 The light soil grouting material with the light bubbles based on the micro-heavy cement.
Comparative example 7
The raw material ratio is as follows: 65 parts of fast hardening sulphoaluminate cement, 15 parts of class C first-grade fly ash, 15 parts of S105-grade mineral powder, 4.85 parts of a compound type foaming agent (the formula is 12 parts of sodium dodecyl benzene sulfonate, 8 parts of ethoxylated alkyl sodium sulfate, 8 parts of coconut oil amido amine oxide, 8 parts of silicone polyether, 10 parts of ethylene glycol butyl ether, 1 part of Arabic gum and 52 parts of water), and 0.15 part of carboxymethyl cellulose; the water-to-glue ratio is 0.6;
(1) pouring the quick-hardening sulphoaluminate cement, the fly ash, the mineral powder and the carboxymethyl cellulose into a stirrer according to the mixing proportion of 0.6 of the water-gel ratio and stirring for 50s to obtain mixed slurry; diluting a compound type foaming agent into a foaming agent solution according to the proportion of 1:60, and preparing into foam through a foaming machine;
(2) mixing the mixed slurry with foam, and stirring to obtain a mixture with a density of 1250kg/m 3 The light soil grouting material with the light bubbles based on the micro-heavy cement.
Comparative example 8
The raw material ratio is as follows: 55 parts of fast hardening sulphoaluminate cement, 20 parts of class C first-grade fly ash, 20 parts of S105-grade mineral powder, 4.85 parts of a compound type foaming agent (the formula is 12 parts of sodium dodecyl benzene sulfonate, 8 parts of ethoxylated alkyl sodium sulfate, 8 parts of coconut oil amido amine oxide, 8 parts of silicone polyether, 10 parts of ethylene glycol butyl ether, 1 part of Arabic gum and 52 parts of water), and 0.15 part of carboxymethyl cellulose; the water-to-glue ratio is 0.6;
(1) pouring the quick-hardening sulphoaluminate cement, the fly ash, the mineral powder and the carboxymethyl cellulose into a stirrer according to the mixing proportion of 0.6 of the water-gel ratio and stirring for 80s to obtain mixed slurry; diluting a compound type foaming agent into a foaming agent solution according to the proportion of 1:60, and preparing into foam through a foaming machine;
(2) mixing the mixed slurry with foam, and stirring to obtain a mixture with a density of 1180kg/m 3 The light soil grouting material with the light bubbles based on the micro-heavy cement.
Comparative example 9
The raw material ratio is as follows: 65 parts of quick-hardening sulphoaluminate cement, 15 parts of wollastonite powder, 15 parts of fly ash, 4.85 parts of a compound foaming agent (the formula comprises 12 parts of sodium dodecyl benzene sulfonate, 8 parts of ethoxylated alkyl sodium sulfate, 8 parts of coconut oil amido amine oxide, 8 parts of silicone polyether, 10 parts of butyl cellosolve, 1 part of Arabic gum and 52 parts of water), and 0.15 part of carboxymethyl cellulose; the water-to-glue ratio is 0.6;
(1) pouring the quick-hardening sulphoaluminate cement, the fly ash, the mineral powder and the carboxymethyl cellulose into a stirrer according to the mixing proportion of 0.6 of the water-gel ratio and stirring for 100s to obtain mixed slurry; diluting a compound type foaming agent into a foaming agent solution according to the proportion of 1:60, and preparing into foam through a foaming machine;
(2) mixing the mixed slurry with foam, and stirring to obtain a mixture with a density of 1180kg/m 3 The light-weight soil grouting material with the micro-heavy cement-based bubbles.
Experimental example:
pouring the grouting materials prepared in the above examples 1-5 and comparative examples 1-9 into a mold for molding, removing the mold after 32h, placing the mold into a standard curing room for curing for 28 days, and then performing various performance tests (CJJ/T177) -2012); the underwater anti-dispersion property of the grouting material is evaluated by measuring the cement loss and the pH value, and the test results (each group is subjected to 3 parallel experiments, and the recorded results are averaged) are as follows:
| group number | Raw material cost (Yuan/m) 3 ） | Fluidity/mm | 28d compressive strength/MPa | 28d water-saturated compressive strength/MPa | Compressive strength loss rate/%) | Cement loss/% | pH value |
| Example 1 | 275 | 185 | 1.29 | 0.71 | 17.6 | 5.0 | 11.2 |
| Example 2 | 290 | 183 | 1.27 | 0.68 | 18.3 | 4.9 | 10.6 |
| Example 3 | 270 | 180 | 1.25 | 0.66 | 19.2 | 5.1 | 11.3 |
| Example 4 | 280 | 185 | 1.24 | 0.63 | 17.8 | 4.8 | 11.0 |
| Example 5 | 280 | 183 | 1.25 | 0.64 | 18.6 | 4.7 | 10.7 |
| Comparative example 1 | 320 | 187 | 1.38 | 0.85 | 18.2 | 5.8 | 11.9 |
| Comparative example 2 | 315 | 186 | 1.28 | 0.80 | 18.4 | 5.6 | 11.6 |
| Comparative example 3 | 310 | 185 | 1.26 | 0.81 | 17.6 | 5.7 | 11.6 |
| Comparative example 4 | 275 | 175 | 1.13 | 0.58 | 18.8 | 6.1 | 11.1 |
| Comparative example 5 | 275 | 200 | 1.10 | 0.56 | 18.7 | 5.7 | 11.2 |
| Comparative example 6 | 290 | 190 | 1.18 | 0.60 | 17.6 | 5.8 | 10.7 |
| Comparative example 7 | 260 | 183 | .1.12 | 0.52 | 19.3 | 6.2 | 10.9 |
| Comparative example 8 | 240 | 185 | 1.06 | 0.55 | 20.2 | 6.5 | 11.3 |
| Comparative example 9 | 280 | 188 | 1.15 | 0.58 | 19.8 | 5.5 | 10.8 |
The results recorded above show that: the grouting material prepared by adopting the formula and the method of the grouting material in the embodiments 1-5 has the advantages of low cost and good performance, and is beneficial to large-scale application of the grouting material; in comparative examples 1 to 3, since cement is used as a cementitious material or the amount of cement is larger than the range specified in the present application, although the compressive strength of the grouting material is high, the cost is significantly increased, the synergistic effect between the raw materials is lost, the cohesiveness of the grouting material is reduced, and the anti-dispersion property is reduced; in comparative examples 4 and 5, the synergistic effect among the raw materials is reduced due to improper water-to-rubber ratio, the compression resistance of the grouting material is obviously reduced, and the dispersion resistance is obviously reduced; in comparative examples 6 and 7, due to the fact that the density of the grouting material is not proper, the porosity of the grouting material is not proper, the interaction effect among the raw materials is reduced, and all performances of the grouting material are reduced to a large extent; in comparative example 8, since the amount of the raw materials is not within the range specified in the present invention, although the cost is reduced, the synergistic effect between the raw materials is also reduced, the compressive property of the grouting material is significantly reduced, and the anti-dispersion property is significantly reduced; in the comparative example 9, the raw materials are replaced, so that the synergistic effect among the raw materials is reduced, the compression resistance of the grouting material is obviously reduced, and the dispersion resistance is obviously reduced; therefore, the grouting material is formed by the raw materials under specific conditions, has a synergistic effect, and can be ensured to have good performance under the condition of obviously reducing the cost of the raw materials.
Claims (10)
1. A micro-heavy cement-based bubble light soil grouting material is characterized by mainly comprising a mixture and water; wherein each 100 parts of the mixture comprises 60-85 parts of cement, 10-35 parts of fly ash and/or mineral powder, 3-9 parts of foaming agent and 0.1-0.5 part of anti-dispersant; in the grouting material, water and gel in the mixtureThe water-to-gel ratio of the material is 0.6; the density of the grouting material is 1150-1220kg/m 3 。
2. The grouting material as claimed in claim 1, wherein each 100 parts of mixture comprises 65 parts of cement, 15 parts of fly ash, 15 parts of mineral powder, 4.85 parts of foaming agent, 0.15 part of anti-dispersing agent and 0.6 part of water-to-gel ratio; the prepared grouting material has better performance by the preferable mixture combination and proportion.
3. The grouting material according to claim 1, wherein the cement is any one of portland cement, chlorate cement, sulphoaluminate cement, aluminoferrite cement, fluoroaluminate cement, and phosphate cement.
4. The grouting material of claim 1, wherein the fly ash is a class C fly ash.
5. The grouting material of claim 1, wherein the fly ash is a primary fly ash.
6. The grouting material of claim 1, wherein the ore fines are grade S105 ore fines.
7. The grouting material of claim 1, wherein the foaming agent is any one of a rosin acid soap foaming agent, a protein foaming agent and a compound foaming agent.
8. The grouting material of claim 1, wherein the anti-dispersant is any one of carboxymethyl cellulose, starch glue, polyethylene oxide and polyvinyl alcohol.
9. A method for preparing a micro-heavy cement-based bubble light soil grouting material according to any one of claims 1 to 8, comprising the steps of:
(1) mixing and stirring cement, fly ash and/or mineral powder, an anti-dispersant and water according to a mixing ratio for 50-180s to obtain mixed slurry; mixing and dissolving a foaming agent and water, and preparing foam by using a foaming device;
(2) and mixing and stirring the mixed slurry and the foam uniformly to obtain the lightweight soil grouting material with the light cement-based bubbles.
10. The method for preparing a grouting material according to claim 9, wherein in the step (1), the foaming agent and the water are mixed and dissolved in a mass ratio of 1: 60.
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