A kind of preparation method of resin-reinforced calcium silicate formwork without demolition

A formwork-free and resin-reinforced technology, which is applied in the field of building materials, can solve the problems of heavy weight and difficult construction, and achieve the effects of light weight, convenient single-person operation, and increased convenience

Active Publication Date: 2021-12-28
陕西建工建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention adopts the substrate made of slurry made of cement, lime, quartz sand, wollastonite, wood pulp fiber and water, smears epoxy resin coating liquid made of epoxy resin, curing agent and n-butanol, bakes The resin-reinforced calcium silicate non-demolition formwork obtained after baking treatment has excellent mechanical properties while being light in weight and thin plate shape, which solves the shortcomings of traditional non-demolition formwork such as heavy weight and difficult construction

Method used

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  • A kind of preparation method of resin-reinforced calcium silicate formwork without demolition

Examples

Experimental program
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Effect test

Embodiment 1

[0031] This embodiment includes the following steps:

[0032] Step 1, 315kg cement, 170kg lime, 440kg quartz sand, 50kg wollastonite, 1850kg wood pulp fiber slurry and 2175kg water are stirred to obtain slurry; the mass content of wood pulp fiber in the wood pulp fiber slurry is 4 %;

[0033] Step 2, transfer the slurry obtained in step 1 to the felt through the mesh wheel, and then use a Roots vacuum pump and a water circulation pump to carry out vacuum dehydration treatment to obtain the slurry after the vacuum dehydration treatment; in the slurry after the vacuum dehydration treatment The mass percent of water is 42%;

[0034] Step 3, extruding the slurry obtained in step 2 after the vacuum dehydration treatment with a forming cylinder and a breast roll to obtain a wet billet; the mass percentage of water in the wet billet is 30%, and the thickness of the wet billet is 2mm ;

[0035] Step 4. Carry out single-sided roughening and double-sided roughening of the wet billets...

Embodiment 2

[0062] This embodiment includes the following steps:

[0063] Step 1, 360kg cement, 160kg lime, 420kg quartz sand, 40kg wollastonite, 1300kg wood pulp fiber slurry and 2720kg water are stirred to obtain slurry; the mass content of wood pulp fiber in the wood pulp fiber slurry is 4 %;

[0064] Step 2, transfer the slurry obtained in step 1 to the felt through the mesh wheel, and then use a Roots vacuum pump and a water circulation pump to carry out vacuum dehydration treatment to obtain the slurry after the vacuum dehydration treatment; in the slurry after the vacuum dehydration treatment The mass percentage of water is 46%;

[0065] Step 3, extruding the slurry obtained in step 2 after vacuum dehydration treatment with a forming cylinder and a breast roll to obtain a wet billet; the mass percentage of water in the wet billet is 32%, and the thickness of the wet billet is 1.5% mm;

[0066] Step 4. Carry out single-sided roughening and double-sided roughening of the wet bille...

Embodiment 3

[0072] This embodiment includes the following steps:

[0073] Step 1, 260kg cement, 210kg lime, 470kg quartz sand, 30kg wollastonite, 1800kg wood pulp fiber slurry and 2230kg water are stirred to obtain slurry; the mass content of wood pulp fiber in the wood pulp fiber slurry is 4 %;

[0074] Step 2, transfer the slurry obtained in step 1 to the felt through the mesh wheel, and then use a Roots vacuum pump and a water circulation pump to carry out vacuum dehydration treatment to obtain the slurry after the vacuum dehydration treatment; in the slurry after the vacuum dehydration treatment The mass percent of water is 44%;

[0075] Step 3, extruding the slurry obtained in step 2 after vacuum dehydration with a forming cylinder and a breast roll to obtain a wet billet; the mass percentage of water in the wet billet is 31%, and the thickness of the wet billet is 2.5% mm;

[0076]Step 4. Carry out single-sided roughening and double-sided roughening of the wet billets obtained in...

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Abstract

The invention discloses a method for preparing a resin-reinforced calcium silicate free formwork. The method comprises the following steps: 1. Stir cement, lime, quartz sand, wollastonite, wood pulp fiber and water to obtain slurry; 2. Vacuum dehydration of the slurry to obtain the slurry after vacuum dehydration treatment; 3. Squeeze the slurry after vacuum dehydration treatment to obtain a wet billet; 4. Pull the wet billet, and then sandwich the steel wire mesh in the middle and stack it on the template Extruding to obtain the slab; 5. Precuring, demoulding, steaming and drying the slab in sequence to obtain the substrate; 6. Stirring the epoxy resin, curing agent and n-butanol to obtain the epoxy resin coating liquid 7. Apply the epoxy resin coating solution to the substrate, and then bake it to obtain a resin-reinforced calcium silicate template without dismantling. The preparation method of the invention is simple, the process is controllable, the cost is low, and it is suitable for industrialization. The prepared resin-reinforced calcium silicate non-demolition formwork has the advantages of thin formwork, light weight, high strength, easy construction, and low cost.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a method for preparing a resin-reinforced calcium silicate formwork without dismantling. Background technique [0002] The traditional building formwork is mainly wooden formwork. After several times of use, the formwork is not easy to be disassembled and scrapped after the concrete is solidified due to the damage of the formwork surface. The later developed building formwork is mostly plastic formwork and metal formwork. Due to the heavy weight of the formwork, it is inconvenient to use less during woodworking, so the dismantling-free formwork can be developed. At present, the demolition-free formwork on the market is mostly a combination of building-free demolition and insulation. The formwork is heavy and needs to be hoisted and spliced ​​when used. Compared with construction carpenters, they are more willing to use manual splicing to improve work effici...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B41/63
CPCC04B28/00C04B41/63C04B41/4853C04B2201/50C04B2201/20C04B22/064C04B14/06C04B18/146C04B18/26C04B22/002C04B14/48C04B41/463C04B41/4535
Inventor 何玺创赵益民蔡世楷
Owner 陕西建工建材科技有限公司
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