Permeable crystallization type waterproof agent doped in concrete

Abstract

The invention is applicable to the technical field of concrete waterproofing agents, and provides a concrete internally-doped permeable crystallization type waterproofing agent which comprises the following components: rice hull ash, modified diatomite, nano aluminum oxide, calcium sulfate, sodium aluminate, sodium methyl silicate, sodium polyacrylate, polyvinyl alcohol, sodium sulfate and sodium bicarbonate. In order to solve the problems of poor effect of most concrete waterproofing agents, low concrete repairing and healing rate and no repeated impermeability, the finished product obtained in the invention can improve the strength, the impermeability and the internal compactness of the concrete, the concrete structure can be automatically repaired and healed under the action of crystallization even if the concrete structure is locally damaged and leaked (the crack is less than 0.6 mm), and the concrete waterproof agent has the repeated impermeability and can be used for repairing and healing the concrete. The waterproof agent is prepared from the rice hull ash, so that fissure seepage caused by unstable size of a common concrete structure is essentially changed, the waterproof agent has a permanent waterproof effect, and the waterproof agent takes the rice hull ash as one of the main components, is environment-friendly and economical, and saves the cost.

Description

technical field

[0001] The invention relates to the technical field of concrete waterproofing agent, in particular to a osmotic crystalline waterproofing agent mixed in concrete. Background technique

[0002] Concrete waterproofing agent can significantly improve the impermeability and waterproof function of concrete, and the impermeability grade can reach above P25. At the same time, it has the functions of retarding, early strength, water reduction, and crack resistance, and can improve the workability of fresh mortar: it can replace lime Paste is especially suitable for concrete for bungalow roofs, large-volume waterproof concrete, hydraulic concrete, waterproof mortar, etc. It can completely cure roof leakage, wall dampness, and ground water seepage. It is currently the cheapest, ideal, and reliable preferred material.

[0003] Most of the existing concrete waterproofing agents are poor in effect, the healing rate of concrete repair is slow, and they do not have the abil...

Examples

Embodiment 1

[0021] A kind of permeable crystalline waterproofing agent mixed in concrete, in terms of mass percentage, the components and contents are as follows:

[0022] Rice husk ash 10%, modified diatomite 20%, nano-alumina 15%, calcium sulfate 3%, sodium aluminate 5%, sodium methyl silicate 10%, sodium polyacrylate 0.5%, polyvinyl alcohol 2% , sodium sulfate 5%, sodium bicarbonate 2%.

[0023] The specification requirements of each component are as follows:

[0024] Rice husk ash ≥ 325 mesh; modified diatomite 1250 mesh; nano-alumina specification 50nm; calcium sulfate, purity 98%; sodium aluminate, purity 98%; sodium methyl silicate, purity 95%; polyacrylic acid Sodium, food grade; polyvinyl alcohol, type 2488; sodium sulfate, 99% pure; sodium bicarbonate, food grade.

[0025] A kind of preparation method of osmotic crystalline waterproofing agent mixed in concrete, it is characterized in that, comprises the following steps:

[0026] Step (1), initial mixing and stirring:

[002...

Embodiment 2

[0031] A kind of permeable crystalline waterproofing agent mixed in concrete, in terms of mass percentage, the components and contents are as follows:

[0032] Rice husk ash 15%, modified diatomaceous earth 30%, nano-alumina 18%, calcium sulfate 4%, sodium aluminate 7%, sodium methyl silicate 15%, sodium polyacrylate 8%, polyvinyl alcohol 4% , Sodium Sulfate 7%, Sodium Bicarbonate 4%.

[0033] The specification requirements of each component are as follows:

[0034] Rice husk ash ≥ 325 mesh; modified diatomite 1250 mesh; nano-alumina specification 50nm; calcium sulfate, purity 98%; sodium aluminate, purity 98%; sodium methyl silicate, purity 95%; polyacrylic acid Sodium, food grade; polyvinyl alcohol, type 2488; sodium sulfate, 99% pure; sodium bicarbonate, food grade.

[0035] A kind of preparation method of osmotic crystalline waterproofing agent mixed in concrete, it is characterized in that, comprises the following steps:

[0036] Step (1), initial mixing and stirring: ...

Embodiment 3

[0041] A kind of permeable crystalline waterproofing agent mixed in concrete, in terms of mass percentage, the components and contents are as follows:

[0042] Rice husk ash 20%, modified diatomite 40%, nano-alumina 20%, calcium sulfate 5%, sodium aluminate 10%, sodium methyl silicate 20%, sodium polyacrylate 1%, polyvinyl alcohol 5% , sodium sulfate 8%, sodium bicarbonate 6%.

[0043] The specification requirements of each component are as follows:

[0044] Rice husk ash ≥ 325 mesh; modified diatomite 1250 mesh; nano-alumina specification 50nm; calcium sulfate, purity 98%; sodium aluminate, purity 98%; sodium methyl silicate, purity 95%; polyacrylic acid Sodium, food grade; polyvinyl alcohol, type 2488; sodium sulfate, 99% pure; sodium bicarbonate, food grade.

[0045] A kind of preparation method of osmotic crystalline waterproofing agent mixed in concrete, it is characterized in that, comprises the following steps:

[0046] Step (1), initial mixing and stirring:

[0047...

technical field

[0001] The invention relates to the technical field of concrete waterproofing agent, in particular to a osmotic crystalline waterproofing agent mixed in concrete. Background technique

[0002] Concrete waterproofing agent can significantly improve the impermeability and waterproof function of concrete, and the impermeability grade can reach above P25. At the same time, it has the functions of retarding, early strength, water reduction, and crack resistance, and can improve the workability of fresh mortar: it can replace lime Paste is especially suitable for concrete for bungalow roofs, large-volume waterproof concrete, hydraulic concrete, waterproof mortar, etc. It can completely cure roof leakage, wall dampness, and ground water seepage. It is currently the cheapest, ideal, and reliable preferred material.

[0003] Most of the existing concrete waterproofing agents are poor in effect, the healing rate of concrete repair is slow, and they do not have the abil...

Examples

Embodiment 1

[0021] A kind of permeable crystalline waterproofing agent mixed in concrete, in terms of mass percentage, the components and contents are as follows:

[0022] Rice husk ash 10%, modified diatomite 20%, nano-alumina 15%, calcium sulfate 3%, sodium aluminate 5%, sodium methyl silicate 10%, sodium polyacrylate 0.5%, polyvinyl alcohol 2% , sodium sulfate 5%, sodium bicarbonate 2%.

[0023] The specification requirements of each component are as follows:

[0024] Rice husk ash ≥ 325 mesh; modified diatomite 1250 mesh; nano-alumina specification 50nm; calcium sulfate, purity 98%; sodium aluminate, purity 98%; sodium methyl silicate, purity 95%; polyacrylic acid Sodium, food grade; polyvinyl alcohol, type 2488; sodium sulfate, 99% pure; sodium bicarbonate, food grade.

[0025] A kind of preparation method of osmotic crystalline waterproofing agent mixed in concrete, it is characterized in that, comprises the following steps:

[0026] Step (1), initial mixing and stirring:

[002...

Embodiment 2

[0031] A kind of permeable crystalline waterproofing agent mixed in concrete, in terms of mass percentage, the components and contents are as follows:

[0032] Rice husk ash 15%, modified diatomaceous earth 30%, nano-alumina 18%, calcium sulfate 4%, sodium aluminate 7%, sodium methyl silicate 15%, sodium polyacrylate 8%, polyvinyl alcohol 4% , Sodium Sulfate 7%, Sodium Bicarbonate 4%.

[0033] The specification requirements of each component are as follows:

[0034] Rice husk ash ≥ 325 mesh; modified diatomite 1250 mesh; nano-alumina specification 50nm; calcium sulfate, purity 98%; sodium aluminate, purity 98%; sodium methyl silicate, purity 95%; polyacrylic acid Sodium, food grade; polyvinyl alcohol, type 2488; sodium sulfate, 99% pure; sodium bicarbonate, food grade.

[0035] A kind of preparation method of osmotic crystalline waterproofing agent mixed in concrete, it is characterized in that, comprises the following steps:

[0036] Step (1), initial mixing and stirring: ...

Embodiment 3

[0041] A kind of permeable crystalline waterproofing agent mixed in concrete, in terms of mass percentage, the components and contents are as follows:

[0042] Rice husk ash 20%, modified diatomite 40%, nano-alumina 20%, calcium sulfate 5%, sodium aluminate 10%, sodium methyl silicate 20%, sodium polyacrylate 1%, polyvinyl alcohol 5% , sodium sulfate 8%, sodium bicarbonate 6%.

[0043] The specification requirements of each component are as follows:

[0044] Rice husk ash ≥ 325 mesh; modified diatomite 1250 mesh; nano-alumina specification 50nm; calcium sulfate, purity 98%; sodium aluminate, purity 98%; sodium methyl silicate, purity 95%; polyacrylic acid Sodium, food grade; polyvinyl alcohol, type 2488; sodium sulfate, 99% pure; sodium bicarbonate, food grade.

[0045] A kind of preparation method of osmotic crystalline waterproofing agent mixed in concrete, it is characterized in that, comprises the following steps:

[0046] Step (1), initial mixing and stirring:

[0047...

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