Grouting material with high impermeability and good stability

Abstract

The invention is suitable for the technical field of grouting materials, and provides a grouting material with high impermeability and good stability. The invention relates to an anti-freezing concrete which is prepared from the following components in parts by weight: 30-60 parts of Portland cement, 20-40 parts of sulphoaluminate cement, 8-14 parts of active filler, 2-6 parts of rare earth oxide, 3.5-5.5 parts of styrene-acrylic emulsion, 2.2-4 parts of polyurethane, 1.6-3.6 parts of linseed oil, 4-10 parts of straw ash, 2-4 parts of Arabic gum, 2.5-6 parts of bamboo fiber, 4-6 parts of nano metal oxide, 0.6-1.1 parts of an anti-freezing agent, 0.8-1.8 parts of a stabilizer and 1.2-2.7 parts of a polycarboxylate superplasticizer. Preferably, the active filler is one or more of kaolin, silica fume and fly ash; preferably, the rare earth oxide is one or more of cerium oxide, lanthanum oxide and yttrium oxide. The prepared grouting material is good in anti-permeability and good in stability, can meet the use requirements of most projects, and has a wide application prospect.

Description

Technical Field

[0001] The invention relates to the technical field of grouting materials, in particular to a grouting material with high anti-seepage stability. Background Art

[0002] Grouting materials are widely used in the reinforcement, repair and sealing of buildings, engineering and underground structures. According to different needs of use, grouting materials can be divided into many types, such as cement-based grouting materials, chemical grouting materials, polymer grouting materials, expansive grouting materials, grouting mortar, silicate grouting materials, and the selection of grouting materials.

[0003] Grouting materials are widely used in civil engineering, especially in waterproof reinforcement, soil reinforcement, crack repair, etc. For these applications, permeability is a very critical performance requirement. Poor permeability of grouting materials may cause a series of hazards such as structural damage, corrosion, water seepage, and soil instability, seriously affecting the safety and durability of the project. Similarly, stability is also one of the important factors affecting the use effect and life of grouting materials.

[0004] Most of the existing grouting materials on the market have room for improvement in terms of impermeability and stability. In this regard, the present invention proposes a grouting material with high impermeability and good stability. Summary of the invention

[0005] The object of the present invention is to provide a grouting material with high anti-seepage stability to solve the problems in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a grouting material with high anti-seepage stability, wherein the components and contents thereof are as follows in terms of mass fraction:

[0007] 30-60 parts of Portland cement, 20-40 parts of sulphoaluminate cement, 8-14 parts of active filler, 2-6 parts of rare earth oxide, 3.5-5.5 parts of styrene-acrylic emulsion, 2.2-4 parts of polyurethane, 1.6-3.6 parts of linseed oil, 4-10 parts of straw ash, 2-4 parts of gum arabic, 2.5-6 parts of bamboo fiber, 4-6 parts of nano metal oxide, 0.6-1.1 parts of antifreeze agent, 0.8-1.8 parts of stabilizer and 1.2-2.7 parts of polycarboxylic acid water reducer.

[0008] Preferably, the mass ratio of the silicate cement to the sulphoaluminate cement is 3:2.

[0009] Preferably, the active filler is one or more of kaolin, silica fume and fly ash.

[0010] Preferably, the rare earth oxide is one or more of cerium oxide, lanthanum oxide and yttrium oxide.

[0011] Preferably, the nano metal oxide is one or more of nano zinc oxide, nano titanium dioxide, and nano silicon dioxide.

[0012] Preferably, the antifreeze agent is one or more of sodium chloride, sodium oxalate and sodium citrate.

[0013] Preferably, the stabilizer is one or more of hydroxyethyl cellulose, polyacrylamide, and sodium carboxymethyl cellulose.

[0014] Preferably, the grouting material further comprises Cu-BTC, Ni-MOF-74 and ZIF-8, and the mass fractions thereof are 1 to 2 parts, 0.3 to 0.6 parts and 0.4 to 1.4 parts respectively.

[0015] The present invention has at least the following beneficial effects:

[0016] The invention provides a grouting material with high impermeability and good stability. The prepared grouting material has good impermeability and good stability, can meet the use requirements of most projects, and has broad application prospects. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example 1

[0019] The present invention provides a grouting material with high anti-seepage stability, wherein the components and contents thereof are as follows in parts by mass:

[0020] 30 parts of Portland cement, 20 parts of sulphoaluminate cement, 8 parts of active filler, 2 parts of rare earth oxide, 3.5 parts of styrene acrylic emulsion, 2.2 parts of polyurethane, 1.6 parts of linseed oil, 4 parts of straw ash, 2 parts of gum arabic, 2.5 parts of bamboo fiber, 4 parts of nano metal oxide, 0.6 parts of antifreeze agent, 0.8 parts of stabilizer and 1.2 parts of polycarboxylate water reducer.

[0021] Among them, the mass ratio of silicate cement to sulphoaluminate cement is 3:2.

[0022] The active filler is kaolin; the rare earth oxide is cerium oxide; the nano metal oxide is nano zinc oxide; the antifreeze agent is sodium chloride; and the stabilizer is hydroxyethyl cellulose.

[0023] Example 2

[0024] The present invention provides a grouting material with high anti-seepage stability, wherein the components and contents thereof are as follows in parts by mass:

[0025] 45 parts of Portland cement, 30 parts of sulphoaluminate cement, 12 parts of active filler, 5 parts of rare earth oxide, 4 parts of styrene acrylic emulsion, 3 parts of polyurethane, 2.2 parts of linseed oil, 7 parts of straw ash, 3 parts of gum arabic, 5 parts of bamboo fiber, 5 parts of nano metal oxide, 0.9 parts of antifreeze agent, 1.6 parts of stabilizer, and 2.2 parts of polycarboxylate water reducer.

[0026] Among them, the mass ratio of silicate cement to sulphoaluminate cement is 3:2.

[0027] The active filler is silica fume; the rare earth oxide is lanthanum oxide; the nano metal oxide is nano titanium dioxide; the antifreeze agent is sodium oxalate; and the stabilizer is polyacrylamide.

[0028] Example 3

[0029] The present invention provides a grouting material with high anti-seepage stability, wherein the components and contents thereof are as follows in parts by mass:

[0030] 60 parts of Portland cement, 40 parts of sulphoaluminate cement, 14 parts of active filler, 6 parts of rare earth oxide, 5.5 parts of styrene acrylic emulsion, 4 parts of polyurethane, 3.6 parts of linseed oil, 10 parts of straw ash, 4 parts of gum arabic, 6 parts of bamboo fiber, 6 parts of nano metal oxide, 1.1 parts of antifreeze agent, 1.8 parts of stabilizer, and 2.7 parts of polycarboxylate water reducer.

[0031] Among them, the mass ratio of silicate cement to sulphoaluminate cement is 3:2.

[0032] The active filler is fly ash; the rare earth oxide is yttrium oxide; the nano metal oxide is nano silicon dioxide; the antifreeze agent is sodium citrate; and the stabilizer is sodium carboxymethyl cellulose.

[0033] Example 4

[0034] The present invention provides a grouting material with high anti-seepage stability, wherein the components and contents thereof are as follows in parts by mass:

[0035] 30 parts of Portland cement, 20 parts of sulphoaluminate cement, 8 parts of active filler, 2 parts of rare earth oxide, 3.5 parts of styrene acrylic emulsion, 2.2 parts of polyurethane, 1.6 parts of linseed oil, 4 parts of straw ash, 2 parts of gum arabic, 2.5 parts of bamboo fiber, 4 parts of nano metal oxide, 0.6 parts of antifreeze agent, 0.8 parts of stabilizer, 1.2 parts of polycarboxylate water reducer, 1 part of Cu-BTC, 0.3 parts of Ni-MOF-74, and 0.4 parts of ZIF-8.

[0036] Among them, the mass ratio of silicate cement to sulphoaluminate cement is 3:2.

[0037] The active filler is kaolin; the rare earth oxide is cerium oxide; the nano metal oxide is nano zinc oxide; the antifreeze agent is sodium chloride; and the stabilizer is hydroxyethyl cellulose.

[0038] Example 5

[0039] The present invention provides a grouting material with high anti-seepage stability, wherein the components and contents thereof are as follows in parts by mass:

[0040] 45 parts of Portland cement, 30 parts of sulphoaluminate cement, 12 parts of active filler, 5 parts of rare earth oxide, 4 parts of styrene-acrylic emulsion, 3 parts of polyurethane, 2.2 parts of linseed oil, 7 parts of straw ash, 3 parts of gum arabic, 5 parts of bamboo fiber, 5 parts of nano metal oxide, 0.9 parts of antifreeze agent, 1.6 parts of stabilizer, 2.2 parts of polycarboxylate water reducer, 1.5 parts of Cu-BTC, 0.5 parts of Ni-MOF-74, and 1.2 parts of ZIF-8.

[0041] Among them, the mass ratio of silicate cement to sulphoaluminate cement is 3:2.

[0042] The active filler is silica fume; the rare earth oxide is lanthanum oxide; the nano metal oxide is nano titanium dioxide; the antifreeze agent is sodium oxalate; and the stabilizer is polyacrylamide.

[0043] Example 6

[0044] The present invention provides a grouting material with high anti-seepage stability, wherein the components and contents thereof are as follows in parts by mass:

[0045] 60 parts of Portland cement, 40 parts of sulphoaluminate cement, 14 parts of active filler, 6 parts of rare earth oxide, 5.5 parts of styrene-acrylic emulsion, 4 parts of polyurethane, 3.6 parts of linseed oil, 10 parts of straw ash, 4 parts of gum arabic, 6 parts of bamboo fiber, 6 parts of nano metal oxide, 1.1 parts of antifreeze agent, 1.8 parts of stabilizer, 2.7 parts of polycarboxylate water reducer, 2 parts of Cu-BTC, 40.6 parts of Ni-MOF-7, and 1.4 parts of ZIF-8.

[0046] Among them, the mass ratio of silicate cement to sulphoaluminate cement is 3:2.

[0047] The active filler is fly ash; the rare earth oxide is yttrium oxide; the nano metal oxide is nano silicon dioxide; the antifreeze agent is sodium citrate; and the stabilizer is sodium carboxymethyl cellulose.

[0048] The functions of each component in the present invention are as follows:

[0049] As basic materials, silicate cement and sulphoaluminate cement provide the main structural strength and impermeability of the grouting material; the addition of active fillers can further improve the density and impermeability of the material while reducing the material cost; the use of rare earth oxides helps to improve the chemical stability of the material and enhance its durability; organic ingredients such as styrene acrylic emulsion, polyurethane, and linseed oil give the material a certain flexibility and adhesion, so that it can maintain good working performance in different environments; the addition of natural materials such as straw ash, gum arabic, and bamboo fiber not only improves the environmental performance of the material, but also enhances its crack resistance and compressive strength; the introduction of nano-metal oxides significantly improves the impermeability and durability of the material; the use of antifreeze agents and stabilizers ensures the stability of the material under extreme temperature conditions and long-term use effects; finally, the addition of metal organic framework materials such as Cu-BTC, Ni-MOF-74 and ZIF-8 further improves the impermeability and stability of the material, so that it can maintain excellent performance in various complex environments.

[0050] The grouting materials prepared in the above Examples 1-6 were tested for relevant properties, and the results are as follows:

[0051]

[0052]

[0053] In summary, the grouting material prepared by the present invention has good impermeability and stability, and can meet the use requirements of most projects.

[0054] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grouting material with high anti-seepage stability, characterized in that: The components and contents are as follows: 30-60 parts of Portland cement, 20-40 parts of sulphoaluminate cement, 8-14 parts of active filler, 2-6 parts of rare earth oxide, 3.5-5.5 parts of styrene-acrylic emulsion, 2.2-4 parts of polyurethane, 1.6-3.6 parts of linseed oil, 4-10 parts of straw ash, 2-4 parts of gum arabic, 2.5-6 parts of bamboo fiber, 4-6 parts of nano metal oxide, 0.6-1.1 parts of antifreeze agent, 0.8-1.8 parts of stabilizer and 1.2-2.7 parts of polycarboxylic acid water reducer.

2. A grouting material with high anti-seepage stability according to claim 1, characterized in that: The mass ratio of the silicate cement to the sulphoaluminate cement is 3:

2.

3. A grouting material with high anti-seepage stability according to claim 1, characterized in that: The active filler is one or more of kaolin, silica fume and fly ash.

4. The grouting material with high anti-seepage stability according to claim 1, characterized in that: The rare earth oxide is one or more of cerium oxide, lanthanum oxide and yttrium oxide.

5. The grouting material with high anti-seepage stability according to claim 1, characterized in that: The nano metal oxide is one or more of nano zinc oxide, nano titanium dioxide and nano silicon dioxide.

6. The grouting material with high anti-seepage stability according to claim 1, characterized in that: The antifreeze agent is one or more of sodium chloride, sodium oxalate and sodium citrate.

7. The grouting material with high anti-seepage stability according to claim 1, characterized in that: The stabilizer is one or more of hydroxyethyl cellulose, polyacrylamide, and sodium carboxymethyl cellulose.

8. The grouting material with high anti-seepage stability according to claim 1, characterized in that: The grouting material also includes Cu-BTC, Ni-MOF-74 and ZIF-8, and the mass proportions thereof are 1 to 2 parts, 0.3 to 0.6 parts and 0.4 to 1.4 parts respectively.

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