Composite liquid concrete accelerator

Abstract

The invention provides a composite liquid concrete accelerator. The composite liquid concrete accelerator comprises the following components: aluminate, sodium carbonate, quick lime, water, triethanolamine, gelatin, phosphoric acid, aluminum hydroxide and an anionic surfactant. Preferably, the content of each component is as follows in parts by mass: 32-56 parts of aluminate, 8-14 parts of sodium carbonate, 4-7 parts of quick lime, 14-26 parts of water, 3-6 parts of triethanolamine, 3-9 parts of gelatin, 4-6 parts of phosphoric acid, 3-8 parts of aluminum hydroxide and 2-5 parts of anionic surfactant. According to the composite liquid concrete accelerator provided by the invention, the aluminate, the sodium carbonate, the quick lime, the water, the triethanolamine, the gelatin, the phosphoric acid, the aluminum hydroxide and the anionic surfactant are mixed according to the specific content to prepare the accelerator, and the gelatin is used, so that the rapid setting time of the accelerator is prolonged; and the strength and the stability of the concrete are greatly ensured.

Description

Technical Field

[0001] The invention relates to the technical field of quick-setting agents, in particular to a composite liquid concrete quick-setting agent. Background Art

[0002] Accelerator is a chemical admixture that can accelerate the hydration of cement, thereby causing the concrete to harden rapidly. Accelerator can quickly make mortar or concrete solidify and harden within a few minutes, while significantly improving the early strength of mortar or concrete without seriously affecting its later strength development.

[0003] With the development of society and the advancement of science and technology, the requirements for the quick-setting effect of concrete accelerators are becoming increasingly higher. The quick-setting effect of existing concrete accelerators still has a large room for improvement. In this regard, the present invention proposes a composite liquid concrete accelerator. Summary of the Invention

[0004] The present invention aims to provide a composite liquid concrete accelerating agent to solve the problem of the rapid setting effect of concrete accelerating agents in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solution: a composite liquid concrete accelerating agent, comprising the following components:

[0006] Aluminate, sodium carbonate, quicklime, water, triethanolamine, gelatin, phosphoric acid, aluminum hydroxide, anionic surfactant.

[0007] Preferably, the content of each component is as follows in parts by mass:

[0008] 32-56 parts of aluminate, 8-14 parts of sodium carbonate, 4-7 parts of quicklime, 14-26 parts of water, 3-6 parts of triethanolamine, 3-9 parts of gelatin, 4-6 parts of phosphoric acid, 3-8 parts of aluminum hydroxide, and 2-5 parts of anionic surfactant.

[0009] Preferably, the content ratio of the aluminate, sodium carbonate and quicklime is 8:2:1.

[0010] Preferably, the aluminate is one of calcium aluminate, sodium aluminate or magnesium aluminate.

[0011] Preferably, the particle size of the aluminate is 100-200 μm, and the particle size of the sodium carbonate is 150-200 μm.

[0012] Preferably, the anionic surfactant is one of a fatty carboxylate anionic surfactant, a sulfonate anionic surfactant or a phosphate anionic surfactant.

[0013] The present invention has at least the following beneficial effects:

[0014] The present invention provides a composite liquid concrete accelerating agent. The accelerating agent is prepared by mixing aluminate, sodium carbonate, quicklime, water, triethanolamine, gelatin, phosphoric acid, aluminum hydroxide, and anionic surfactant in specific proportions. The use of gelatin not only increases the accelerating setting time of the accelerating agent, but also greatly ensures the strength and stability of the concrete. DETAILED DESCRIPTION

[0015] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. 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 making any creative efforts are within the scope of protection of the present invention.

[0016] Example 1

[0017] A composite liquid concrete accelerating agent, wherein the contents of the components are as follows in parts by mass:

[0018] 32 parts of aluminate, 8 parts of sodium carbonate, 4 parts of quicklime, 14 parts of water, 3 parts of triethanolamine, 3 parts of gelatin, 4 parts of phosphoric acid, 3 parts of aluminum hydroxide, and 2 parts of anionic surfactant.

[0019] Among them, the content ratio of aluminate, sodium carbonate and quicklime is 8:2:1.

[0020] Wherein, the aluminate is calcium aluminate.

[0021] The particle size of the aluminate is 100 to 200 μm, and the particle size of the sodium carbonate is 150 to 200 μm.

[0022] Wherein, the anionic surfactant is a fatty carboxylate anionic surfactant.

[0023] Example 2

[0024] A composite liquid concrete accelerating agent, wherein the contents of the components are as follows in parts by mass:

[0025] 40 parts of aluminate, 10 parts of sodium carbonate, 5 parts of quicklime, 22 parts of water, 4 parts of triethanolamine, 7 parts of gelatin, 5 parts of phosphoric acid, 4 parts of aluminum hydroxide, and 3 parts of anionic surfactant.

[0026] Among them, the content ratio of aluminate, sodium carbonate and quicklime is 8:2:1.

[0027] Wherein, the aluminate is sodium aluminate.

[0028] The particle size of the aluminate is 100 to 200 μm, and the particle size of the sodium carbonate is 150 to 200 μm.

[0029] Wherein, the anionic surfactant is a sulfonate anionic surfactant.

[0030] Example 3

[0031] A composite liquid concrete accelerating agent, wherein the contents of the components are as follows in parts by mass:

[0032] 56 parts of aluminate, 14 parts of sodium carbonate, 7 parts of quicklime, 26 parts of water, 6 parts of triethanolamine, 9 parts of gelatin, 6 parts of phosphoric acid, 8 parts of aluminum hydroxide, and 5 parts of anionic surfactant.

[0033] Among them, the content ratio of aluminate, sodium carbonate and quicklime is 8:2:1.

[0034] Wherein, the aluminate is magnesium aluminate.

[0035] The particle size of the aluminate is 100 to 200 μm, and the particle size of the sodium carbonate is 150 to 200 μm.

[0036] Wherein, the anionic surfactant is a phosphate anionic surfactant.

[0037] The composite liquid concrete accelerating agent provided in Examples 1-3 above is prepared as follows:

[0038] Aluminate, sodium carbonate, quicklime, water, triethanolamine, gelatin, phosphoric acid, aluminum hydroxide and anionic surfactant are weighed in order according to the required content. Aluminate, sodium carbonate and quicklime are first added to a stirring container, a portion of water is added, and stirred for 30 minutes. Then, triethanolamine, gelatin, phosphoric acid, aluminum hydroxide and anionic surfactant are added, and the remaining water is poured in and stirred for 45 minutes to prepare a composite liquid concrete accelerator.

[0039] The products prepared in Examples 1-3 above were subjected to relevant performance tests, and the results are shown in the following table (the dosage ratio of the accelerating agent to the concrete is 7:100):

[0040]

[0041] It can be seen from the above table that the products obtained in Examples 1-3 have good rapid setting effect, and the concrete after using the products obtained in Examples 1-3 still has high compressive strength and flexural strength.

[0042] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be regarded as illustrative and non-restrictive in all respects. The scope of the present invention is defined by the appended claims rather than the foregoing description, and all changes that come within the meaning and range of equivalents of the claims are intended to be included therein.

[0043] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A composite liquid concrete accelerating agent, characterized in that: Includes the following components: Aluminate, sodium carbonate, quicklime, water, triethanolamine, gelatin, phosphoric acid, aluminum hydroxide, anionic surfactant.

2. A composite liquid concrete accelerating agent according to claim 1, characterized in that: The contents of each component in parts by mass are as follows: 32-56 parts of aluminate, 8-14 parts of sodium carbonate, 4-7 parts of quicklime, 14-26 parts of water, 3-6 parts of triethanolamine, 3-9 parts of gelatin, 4-6 parts of phosphoric acid, 3-8 parts of aluminum hydroxide, and 2-5 parts of anionic surfactant.

3. A composite liquid concrete accelerating agent according to claim 2, characterized in that: The content ratio of the aluminate, sodium carbonate and quicklime is 8:2:

1.

4. A composite liquid concrete accelerating agent according to claim 1, characterized in that: The aluminate is one of calcium aluminate, sodium aluminate or magnesium aluminate.

5. A composite liquid concrete accelerating agent according to claim 1, characterized in that: The particle size of the aluminate is 100-200 μm, and the particle size of the sodium carbonate is 150-200 μm.

6. A composite liquid concrete accelerating agent according to claim 1, characterized in that: The anionic surfactant is one of a fatty carboxylate anionic surfactant, a sulfonate anionic surfactant or a phosphate anionic surfactant.

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