CN108793878B - Cement-based high-strength non-dispersive grouting material - Google Patents
Cement-based high-strength non-dispersive grouting material Download PDFInfo
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- CN108793878B CN108793878B CN201810742981.5A CN201810742981A CN108793878B CN 108793878 B CN108793878 B CN 108793878B CN 201810742981 A CN201810742981 A CN 201810742981A CN 108793878 B CN108793878 B CN 108793878B
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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
- C04B28/04—Portland cements
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The invention provides a cement-based high-strength non-dispersive grouting material which comprises the following components in parts by weight: 300-400 parts of portland cement, 60-80 parts of superfine portland cement, 40-60 parts of calcium sulphoaluminate cementing material, 45-55 parts of superfine fly ash, 450-550 parts of quartz sand, 3.0-4.0 parts of water reducing agent, 6.0-8.0 parts of flocculating agent and 160-175 parts of water; the quartz sand comprises quartz sand with the fineness of 6 meshes to 10 meshes, 10 meshes to 20 meshes, 20 meshes to 40 meshes, 40 meshes to 70 meshes and 70 meshes to 140 meshes; the flocculant is a composite flocculant taking polysaccharide and biogel as main components, wherein the mass fraction of the polysaccharide is 10-20%, and the mass fraction of the biogel is 5-15%. The cement-based high-strength non-dispersive grouting material system has the advantages of simple structure, low water-material ratio, high land-water strength ratio, strong water flow impact resistance and high underwater compressive strength.
Description
Technical Field
The invention belongs to the technical field of cement-based materials, and particularly relates to a cement-based high-strength non-dispersive grouting material.
Background
The cement-base grouting material is a powdery material prepared by premixing a cement component, an expansion component, an aggregate component, a water-reducing and water-retaining component and a trace amount of modification component in a factory according to a proper proportion, and adding water and stirring when in use, so that the shrinkage-free grouting material with self-leveling property is obtained. The common strength is generally 35MPa to 80MPa, and the common water-material ratio is generally 0.13 to 0.17. In recent years, due to the requirements of wind power engineering, ultrahigh-strength cement-based grouting materials of 80MPa to 120MPa are developed in succession, and the water-material ratio is reduced to 0.07 to 0.08 at minimum. The cement-based grouting material can be used for grouting of a steel structure column foundation, secondary grouting of an equipment foundation, installation of a track and a steel structure, anchoring of foundation bolts, secondary pouring of a wind power foundation, connection grouting of a marine jacket and the like.
When the grouting material is used for underwater construction, in the prior art, a polypropylene polymer or cellulose ether polymer thickener is added on the basis of a land cement-based grouting material to solve the problem of dispersion resistance of the grouting material in water. The disadvantages are that: firstly, the water-material ratio is greatly increased due to the increase of the viscosity of the grouting material system, so that the underwater compressive strength of the hardened grouting material is lower; secondly, the water flow impact resistance is weak, and slurry on the surface layer under the impact of water flow is easy to lose, so that the structure of the surface layer is incomplete and the strength is reduced; thirdly, the strength of land and water is relatively low due to the decrease in the resistance to dispersion caused by the large fluidity of the grouting material.
Disclosure of Invention
Aiming at the defects in the prior art, the invention mainly aims to provide a cement-based high-strength non-dispersive grouting material which has the advantages of simple structure, low water-material ratio, high land-water strength ratio, strong water flow impact resistance and high underwater compressive strength.
In order to achieve the purpose, the invention adopts the following technical scheme: the cement-based high-strength non-dispersive grouting material comprises the following components in parts by weight:
300-400 parts of portland cement, 60-80 parts of superfine portland cement, 40-60 parts of calcium sulphoaluminate cementing material, 45-55 parts of superfine fly ash, 450-550 parts of quartz sand, 3.0-4.0 parts of water reducing agent, 6.0-8.0 parts of flocculating agent and 160-175 parts of water;
the quartz sand comprises quartz sand with the fineness of 6 meshes to 10 meshes, 10 meshes to 20 meshes, 20 meshes to 40 meshes, 40 meshes to 70 meshes and 70 meshes to 140 meshes;
the flocculant is a composite flocculant taking polysaccharide and biogel as main components, wherein the mass fraction of the polysaccharide is 10-20%, and the mass fraction of the biogel is 5-15%.
Preferably, the quartz sand comprises the following components in percentage by mass:
6-10 mesh quartz sand: 19.6 to 27.6 percent;
10-20 meshes of quartz sand: 23.8% -30.1%;
20-40 mesh quartz sand: 19.7% -24.3%;
40-70 mesh quartz sand: 13.5% -13.7%;
70-140 mesh quartz sand: 12.3 to 15.4 percent.
Preferably, the cement-based high-strength non-dispersing grouting material comprises the following components in parts by weight: 380 parts of portland cement, 80 parts of superfine portland cement, 40 parts of calcium sulphoaluminate cementing material, 50 parts of superfine fly ash, 450 parts of quartz sand, 3.5 parts of water reducing agent, 7 parts of flocculating agent and 170 parts of water.
More preferably, the portland cement is 52.5-grade I-type portland cement.
More preferably, the ultrafine portland cement has a specific surface area of 800m2/kg～1100m2/kg。
Preferably, the specific surface area of the calcium sulphoaluminate cementing material is more than or equal to 400m2/kg。
More preferably, the particle size distribution of the ultrafine fly ash is D90 ≤ 5 μm.
As a further preference, the ultrafine fly ash particle size distribution: the mass fraction of the ultrafine fly ash with the particle size of less than 1 mu m is 70 percent, and the mass fraction of the ultrafine fly ash with the particle size of 1-5 mu m is 25 percent.
Preferably, the water reducing agent is a low air entraining type ether polycarboxylate powder water reducing agent.
As a further preference, the flocculant is a UWB-III type composite flocculant.
The invention has the beneficial effects that: the cement-based high-strength non-dispersive grouting material system has simple structure and easily obtained raw materials; the performance detection shows that the mobility of the prepared grouting material can reach more than 270mm, the grouting material is micro-expanded and does not bleed, the underwater 28d compressive strength is more than 80MPa, the land-water strength ratio is more than 90%, and the maximum water flow impact resistance can reach 0.75 m/s. Therefore, the cement-based high-strength non-dispersive grouting material has low water-material ratio, high land-water strength ratio, strong water flow impact resistance and high underwater compressive strength. The method can avoid surface quality deterioration, strength reduction and the like caused by casting surface material loss caused by sea current and wave impact, has 28d compressive strength of over 80MPa, and is particularly suitable for the underwater grouting engineering of open sea area without covering protection. The integrity of the surface structure can be maintained against the water-land impact with the flow speed of 0.75 m/s. The land-water strength ratio is more than 90%, and the underwater grouting quality can be better ensured.
Detailed Description
The invention provides a cement-based high-strength non-dispersion grouting material, which solves the defect of the dispersion resistance problem of the existing cement-based grouting material in water.
In order to solve the above-mentioned defects, the main idea of the embodiment of the present invention is:
the cement-based high-strength non-dispersive grouting material provided by the embodiment of the invention comprises the following components in parts by weight:
300-400 parts of portland cement, 60-80 parts of superfine portland cement, 40-60 parts of calcium sulphoaluminate cementing material, 45-55 parts of superfine fly ash, 450-550 parts of quartz sand, 3.0-4.0 parts of water reducing agent, 6.0-8.0 parts of flocculating agent and 160-175 parts of water;
the quartz sand comprises quartz sand with the fineness of 6 meshes to 10 meshes, 10 meshes to 20 meshes, 20 meshes to 40 meshes, 40 meshes to 70 meshes and 70 meshes to 140 meshes.
The flocculant is a composite flocculant taking polysaccharide and biogel as main components, wherein the mass fraction of the polysaccharide is 10-20%, and the mass fraction of the biogel is 5-15%.
The Portland cement can be 52.5 grade I-type Portland cement.
The selectable specific surface area of the superfine portland cement is 800m2/kg～1100m2The strength grade of the Portland cement is 52.5MPa to 92.5MPa in terms of/kg and 28 d. The purpose of using the superfine portland cement is to fill the gaps of coarser particles of portland cement in order to meet the requirement of particle composition of a cementing material.
The calcium sulphoaluminate cementing material can be selected from CSA cementing material produced by Nippon Temminck & ltd & gt, and the 28-d strength grade is 92.5 MPa. The CSA cementing material is used for the purposes of promoting the coagulation of a system and meeting the requirement of early strength, and providing compensation shrinkage without reducing the later strength of the system.
The ultrafine fly ash can be selected from ultrafine fly ash with the particle size distribution D90 being less than or equal to 5 mu m, and the particle distribution is as follows: 70% below 1 μm, and 25% in the range of 1 μm to 5 μm. The function is as follows: firstly, the fluidity of the system is increased by utilizing the 'ball' effect of spherical particles, secondly, the requirement of particle composition of a cementing material system is met, the particle gaps of a cement system are filled, and thirdly, the shrinkage value of the system is reduced.
The purpose of adopting the quartz sand with different fineness and different mass percentages is to assemble continuous gradation according to the theory of a close packing equation, increase the fluidity of a system and reduce the uneven settlement of large particles under the condition of large fluidity.
The water reducing agent can be selected as a low air entraining type ether polycarboxylate powder water reducing agent so as to reduce the compressive strength loss of the system caused by air entraining.
The flocculant can be selected from UWB-III type composite flocculant with polysaccharide and biogel as main components. The polysaccharide plays a role in improving the dispersion resistance of the underwater grouting material and increasing the self-leveling effect of the grouting material, and the biogel plays a role in improving the dispersion resistance and the water flow impact resistance of the underwater grouting material. Meanwhile, both the polysaccharide and the biogel have the characteristic of small increase of water demand. Therefore, the composite UWB-III flocculant can endow the grouting material with good dispersion resistance, water flow impact resistance and lower water-material ratio.
In order to make the aforementioned and other objects, features, and advantages of the present invention comprehensible, several embodiments accompanied with figures are described in detail below. The following description is presented to enable any person skilled in the art to make and use the invention. Descriptions of specific embodiments and uses are provided only as examples. Various modifications to and combinations of the embodiments described herein will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments and applications without departing from the scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown and described, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
Example 1
The cement-based high-strength underwater non-dispersive grouting material provided by the embodiment of the invention is prepared by mixing the following components in parts by weight:
portland cement: 380 parts;
ultra-fine portland cement: 80 parts of a mixture;
calcium sulphoaluminate cementing agent: 40 parts of a mixture;
ultra-fine fly ash: 50 portions of
6-140 mesh quartz sand: 450 portions of
Water reducing agent: 3.5 parts;
flocculating agent: 7 parts;
water: 170 parts.
The Portland cement is 52.5-grade I-type Portland cement.
The superfine portland cement has a specific surface area of 800m2/kg-900m2Portland cement with strength grade of 52.5MPa to 62.5MPa in terms of/kg and 28 d.
The calcium sulphoaluminate cementing material is CSA cementing material produced by Tangshan polar bear building materials Co., Ltd, and the 28d strength grade is 92.5 MPa.
The particle size distribution of the ultrafine fly ash is D90 which is 3-5 μm.
The quartz sand consists of 5 kinds of quartz sand with the fineness of 6 meshes to 10 meshes, 10 meshes to 20 meshes, 20 meshes to 40 meshes, 40 meshes to 70 meshes and 70 meshes to 140 meshes, and the quartz sand comprises the following components in percentage by mass:
6-10 mesh quartz sand: 27.6 percent;
10-20 meshes of quartz sand: 23.8 percent;
20-40 mesh quartz sand: 19.7 percent;
40-70 mesh quartz sand: 13.5 percent;
70-140 mesh quartz sand: 15.4 percent.
The water reducing agent is a low air entraining type ether polycarboxylate water reducing agent.
The flocculant is a UWB-III type composite flocculant taking polysaccharide and biogel as main components. The mass fraction of the polysaccharide is 15 percent, and the mass fraction of the biological colloid is 10 percent.
Example 2
The cement-based high-strength underwater non-dispersive grouting material provided by the embodiment of the invention is prepared from the following components in parts by weight:
portland cement: 400 parts of (1);
ultra-fine portland cement: 60 parts;
calcium sulphoaluminate cementing agent: 40 parts of a mixture;
ultra-fine fly ash: 45 portions of
6-140 mesh quartz sand: 455 parts of
Water reducing agent: 3.0 parts of (B);
flocculating agent: 6 parts of (1);
water: 175 parts of (A).
The Portland cement is 52.5-grade I-type Portland cement.
The superfine portland cement has a specific surface area of 900m2/kg-1000m2The strength grade of the Portland cement is 72.5MPa to 82.5MPa in terms of kg and 28 d.
The calcium sulphoaluminate cementing material is CSA cementing material produced by Tangshan polar bear building materials Co., Ltd, and the 28d strength grade is 92.5 MPa.
The particle size distribution of the ultrafine fly ash is D90 which is less than or equal to 5 mu m. The mass fraction of the ultrafine fly ash with the particle size of less than 1 mu m is 70 percent, and the mass fraction of the ultrafine fly ash with the particle size of 1-5 mu m is 25 percent.
The quartz sand consists of 5 kinds of quartz sand with the fineness of 6 meshes to 10 meshes, 10 meshes to 20 meshes, 20 meshes to 40 meshes, 40 meshes to 70 meshes and 70 meshes to 140 meshes, and the quartz sand comprises the following components in percentage by mass:
6-10 mesh quartz sand: 19.6 percent;
10-20 meshes of quartz sand: 30.1 percent;
20-40 mesh quartz sand: 24.3 percent;
40-70 mesh quartz sand: 13.7 percent;
70-140 mesh quartz sand: 12.3 percent.
The water reducing agent is a low air entraining type ether polycarboxylate powder water reducing agent.
The flocculant is a UWB-III type composite flocculant taking polysaccharide and biogel as main components. The mass fraction of the polysaccharide is 10 percent, and the mass fraction of the biological glue is 15 percent.
Example 3
The cement-based high-strength underwater non-dispersive grouting material provided by the embodiment of the invention is prepared from the following components in parts by weight:
portland cement: 340 parts of (A);
ultra-fine portland cement: 70 parts of (B);
calcium sulphoaluminate cementing agent: 50 parts of a mixture;
ultra-fine fly ash: 50 portions of
6-140 mesh quartz sand: 490
Water reducing agent: 4 parts of a mixture;
flocculating agent: 8 parts of a mixture;
water: 170 parts.
The Portland cement is 52.5-grade I-type Portland cement.
The superfine portland cement has a specific surface area of 1000m2/kg-1100m2Silicate cement with strength grade of 82.5MPa to 92.5MPa in terms of/kg and 28 d.
The calcium sulphoaluminate cementing material is CSA cementing material produced by Tangshan polar bear building materials Co., Ltd, and the 28d strength grade is 92.5 MPa.
The particle size distribution of the ultrafine fly ash is D90 of 2-4 μm.
The quartz sand consists of 5 kinds of quartz sand with the fineness of 6 meshes to 10 meshes, 10 meshes to 20 meshes, 20 meshes to 40 meshes, 40 meshes to 70 meshes and 70 meshes to 140 meshes, and the quartz sand comprises the following components in percentage by mass:
6-10 mesh quartz sand: 20.6 percent;
10-20 meshes of quartz sand: 26.3 percent;
20-40 mesh quartz sand: 24.3 percent;
40-70 mesh quartz sand: 13.7 percent;
70-140 mesh quartz sand: 15.1 percent.
The water reducing agent is a low air entraining type ether polycarboxylate water reducing agent.
The flocculant is a UWB-III type composite flocculant taking polysaccharide and biogel as main components.
Example 4
The cement-based high-strength underwater non-dispersive grouting material provided by the embodiment of the invention is prepared from the following components in parts by weight:
portland cement: 300 parts of (A);
ultra-fine portland cement: 60 parts;
calcium sulphoaluminate cementing agent: 55 parts of (1);
ultra-fine fly ash: 45 portions of
6-140 mesh quartz sand: 550
Water reducing agent: 3.0 parts of (B);
flocculating agent: 7 parts;
water: 160 parts.
The Portland cement is 52.5-grade I-type Portland cement.
The superfine portland cement has a specific surface area of 850m2/kg-1000m2The strength grade of the Portland cement is 62.5MPa to 82.5MPa in terms of/kg and 28 d.
The calcium sulphoaluminate cementing material is CSA cementing material produced by Tangshan polar bear building materials Co., Ltd, and the 28d strength grade is 92.5 MPa.
The particle size distribution of the ultrafine fly ash is D90 which is 4-5 μm.
The quartz sand consists of 5 kinds of quartz sand with the fineness of 6 meshes to 10 meshes, 10 meshes to 20 meshes, 20 meshes to 40 meshes, 40 meshes to 70 meshes and 70 meshes to 140 meshes, and the quartz sand comprises the following components in percentage by mass:
6-10 mesh quartz sand: 23.3 percent;
10-20 meshes of quartz sand: 28.6 percent;
20-40 mesh quartz sand: 20.6 percent;
40-70 mesh quartz sand: 13.7 percent;
70-140 mesh quartz sand: 13.8 percent.
The water reducing agent is a low air entraining type ether polycarboxylate water reducing agent.
The flocculant is a UWB-III type composite flocculant taking polysaccharide and biogel as main components. The mass fraction of the polysaccharide is 20 percent, and the mass fraction of the biological glue is 5 percent.
Example 5
The cement-based high-strength underwater non-dispersive grouting material provided by the embodiment of the invention is prepared from the following components in parts by weight:
portland cement: 360 parts of a mixture;
ultra-fine portland cement: 75 parts of a mixture;
calcium sulphoaluminate cementing agent: 60 parts;
ultra-fine fly ash: 55 portions of
6-140 mesh quartz sand: 500 portions
Water reducing agent: 3.2 parts of a mixture;
flocculating agent: 7.5 parts;
water: 165 parts.
The Portland cement is 52.5-grade I-type Portland cement.
The superfine portland cement has a specific surface area of 800m2/kg-1000m2The strength grade of the Portland cement is 52.5MPa to 82.5MPa in terms of the volume ratio of the Portland cement per kg and the 28 d.
The calcium sulphoaluminate cementing material is CSA cementing material produced by Tangshan polar bear building materials Co., Ltd, and the 28d strength grade is 92.5 MPa.
The particle size distribution of the ultrafine fly ash is D90 which is 3-5 μm.
The quartz sand consists of 5 kinds of quartz sand with the fineness of 6 meshes to 10 meshes, 10 meshes to 20 meshes, 20 meshes to 40 meshes, 40 meshes to 70 meshes and 70 meshes to 140 meshes, and the quartz sand comprises the following components in percentage by mass:
6-10 mesh quartz sand: 27.6 percent;
10-20 meshes of quartz sand: 23.8 percent;
20-40 mesh quartz sand: 19.7 percent;
40-70 mesh quartz sand: 13.5 percent;
70-140 mesh quartz sand: 15.4 percent.
The water reducing agent is a low air entraining type ether polycarboxylate water reducing agent.
The flocculant is a UWB-III type composite flocculant taking polysaccharide and biogel as main components. The mass fraction of the polysaccharide is 10-15%, and the mass fraction of the biological glue is 5-10%.
The cement-based high-strength underwater non-dispersive grouting material provided by the embodiment of the invention is subjected to the following performance tests, and the results are shown in table 1:
the fluidity of the cement-based high-strength underwater undispersed grouting material is tested according to GB/T50448-2008.
The compressive strength of the cement-based high-strength underwater non-dispersive grouting material is tested according to GB/T17671-1999.
The vertical expansion rate of the cement-based high-strength underwater non-dispersive grouting material is tested according to GB 50119-2003.
And testing the land-water strength ratio of the cement-based high-strength underwater non-dispersed grouting material according to DL/T5100-2014.
TABLE 1
The embodiment of the invention has lower water-material ratio, the underwater grouting material has the compressive strength of more than 80MPa, and the slurry hardening strength loss caused by the increase of the viscosity is reduced. Before the grout is hardened, the integrity of the surface layer can be maintained by resisting the water impact of 0.75 m/s. The strength ratio of land and water can reach more than 90%, and the water-resistant dispersing agent has better water-resistant dispersing performance.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
the cement-based high-strength non-dispersive grouting material system has simple structure and easily obtained raw materials; the performance detection shows that the mobility of the prepared grouting material can reach more than 270mm, the grouting material is micro-expanded and does not bleed, the underwater 28d compressive strength is more than 80MPa, the land-water strength ratio is more than 90%, and the maximum water flow impact resistance can reach 0.75 m/s. Therefore, the cement-based high-strength non-dispersive grouting material has low water-material ratio, high land-water strength ratio, strong water flow impact resistance and high underwater compressive strength. The method can avoid surface quality deterioration, strength reduction and the like caused by casting surface material loss caused by sea current and wave impact, has 28d compressive strength of over 80MPa, and is particularly suitable for the underwater grouting engineering of open sea area without covering protection. The integrity of the surface structure can be maintained against the water-land impact with the flow speed of 0.75 m/s. The land-water strength ratio is more than 90%, and the underwater grouting quality can be better ensured.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only illustrative of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A cement-based high-strength non-dispersive grouting material is characterized in that: the coating comprises the following components in parts by weight:
300-400 parts of portland cement, 60-80 parts of superfine portland cement, 40-60 parts of calcium sulphoaluminate cementing material, 45-55 parts of superfine fly ash, 450-550 parts of quartz sand, 3.0-4.0 parts of water reducing agent, 6.0-8.0 parts of flocculating agent and 160-175 parts of water;
the quartz sand comprises quartz sand with the fineness of 6 meshes to 10 meshes, 10 meshes to 20 meshes, 20 meshes to 40 meshes, 40 meshes to 70 meshes and 70 meshes to 140 meshes;
the flocculant is a composite flocculant taking polysaccharide and biogel as main components, the mass fraction of the polysaccharide is 10-20%, and the mass fraction of the biogel is 5-15%;
wherein the quartz sand comprises the following components in percentage by mass:
6-10 mesh quartz sand: 19.6 to 27.6 percent;
10-20 meshes of quartz sand: 23.8% -30.1%;
20-40 mesh quartz sand: 19.7% -24.3%;
40-70 mesh quartz sand: 13.5% -13.7%;
70-140 mesh quartz sand: 12.3% -15.4%;
the specific surface area of the calcium sulphoaluminate cementing material is more than or equal to 400m2/kg；
The particle size distribution of the ultrafine fly ash is as follows: the mass fraction of the ultrafine fly ash with the particle size of less than 1 mu m is 70 percent, and the mass fraction of the ultrafine fly ash with the particle size of 1-5 mu m is 25 percent.
2. The cement-based high-strength non-dispersive grouting material according to claim 1, characterized in that: the cement-based high-strength non-dispersive grouting material comprises the following components in parts by weight: 380 parts of portland cement, 80 parts of superfine portland cement, 40 parts of calcium sulphoaluminate cementing material, 50 parts of superfine fly ash, 450 parts of quartz sand, 3.5 parts of water reducing agent, 7 parts of flocculating agent and 170 parts of water.
3. The cement-based high-strength non-dispersive grouting material according to claim 1 or 2, characterized in that: the portland cement is 52.5-grade I-type portland cement.
4. The cement-based high-strength non-dispersive grouting material according to claim 1 or 2, characterized in that: the specific surface area of the superfine portland cement is 800m2/kg～1100m2/kg。
5. The cement-based high-strength non-dispersive grouting material according to claim 1 or 2, characterized in that: the particle size distribution of the ultrafine fly ash is D90 not more than 5 μm.
6. The cement-based high-strength non-dispersive grouting material according to claim 1 or 2, characterized in that: the water reducing agent is a low air entraining type ether polycarboxylate powder water reducing agent.
7. The cement-based high-strength non-dispersive grouting material according to claim 1 or 2, characterized in that: the flocculant is a UWB-III type composite flocculant.
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| CN111807744B (en) * | 2020-08-04 | 2022-06-03 | 重庆思贝肯节能技术开发有限公司 | Foaming cement paste inorganic thickening agent and preparation method and application thereof |
| CN116003044A (en) * | 2022-05-11 | 2023-04-25 | 北京漏邦房屋修缮工程有限公司 | High-strength impervious grouting material and preparation method and use method thereof |
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| CN1559960A (en) * | 2004-02-17 | 2005-01-05 | 江苏博特新材料有限公司 | High performance grouting addition for concrete with post-tensioning binding prestressing force |
| JP4533190B2 (en) * | 2005-03-03 | 2010-09-01 | 太平洋マテリアル株式会社 | Injection material |
| CN104003681A (en) * | 2014-06-03 | 2014-08-27 | 中交上海三航科学研究院有限公司 | Offshore wind power duct rack grouting material and construction method thereof |
| CN106747146A (en) * | 2017-02-28 | 2017-05-31 | 卡本复合材料（天津）有限公司 | A kind of dispersion strength cement-based grouting material anti-under water and preparation method thereof |
| CN106747128A (en) * | 2017-03-10 | 2017-05-31 | 中建商品混凝土有限公司 | A kind of big fluidised form High Strength Non-shrinking Filling Material and preparation method thereof |
-
2018
- 2018-07-09 CN CN201810742981.5A patent/CN108793878B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1559960A (en) * | 2004-02-17 | 2005-01-05 | 江苏博特新材料有限公司 | High performance grouting addition for concrete with post-tensioning binding prestressing force |
| JP4533190B2 (en) * | 2005-03-03 | 2010-09-01 | 太平洋マテリアル株式会社 | Injection material |
| CN104003681A (en) * | 2014-06-03 | 2014-08-27 | 中交上海三航科学研究院有限公司 | Offshore wind power duct rack grouting material and construction method thereof |
| CN106747146A (en) * | 2017-02-28 | 2017-05-31 | 卡本复合材料（天津）有限公司 | A kind of dispersion strength cement-based grouting material anti-under water and preparation method thereof |
| CN106747128A (en) * | 2017-03-10 | 2017-05-31 | 中建商品混凝土有限公司 | A kind of big fluidised form High Strength Non-shrinking Filling Material and preparation method thereof |
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| CN108793878A (en) | 2018-11-13 |
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