Novel carbon-sequestration calcium silicate board and preparation method thereof
A calcium carbosilicate and calcium silicate board technology, applied in the field of building materials, can solve the problems of silted rivers, biological hazards, air pollution, etc., and achieve the effects of strong shear resistance, low water absorption, and tight texture
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
preparation example Construction
[0046] The invention also provides a preparation method of a novel carbon-fixing calcium silicate board, and the preparation method comprises the following steps:
[0047] Step 1, the magnesium slag is ground to a granularity of 150-400 mesh (such as 200 mesh, 250 mesh, 300 mesh, 350 mesh), and the pretreated magnesium slag is obtained for subsequent use;
[0048] Step 2, put the pretreated magnesium slag, fly ash and fiber into a mixer to mix uniformly according to the proportion, and then add a reaction aid and water to continue stirring to prepare a slurry;
[0049]In a specific embodiment of the present invention, the mass concentration of the slurry is 10-20% (eg, 12%, 14%, 16%, 18%). The concentration of the slurry refers to 10-20% of the sum of other substances except water in the slurry. If the slurry concentration is too low or too high, the dispersibility of each component will be poor, resulting in uneven distribution of each component material in the board, result...
Embodiment 1
[0058] The preparation method of a novel carbon-fixing calcium silicate board provided by this embodiment, according to the mass percentage, includes the raw materials of the following components:
[0059] Magnesium slag 65%, fly ash 20%, pulp fiber 10%, flocculant (water glass) 5%.
[0060] Put magnesium slag, fly ash and pulp fiber into the mixer according to the proportion and mix evenly, then add flocculant and water to continue stirring to obtain a slurry with a concentration of 10%; the prepared slurry is transported to the flow pulping board The machine forms the wet blank sheet, pressurizes the wet blank sheet in the press to squeeze out the water, improves the density of the sheet, and ensures that the thickness of the sheet is 6-8mm, and sends the pressurized sheet to a drying box with a temperature of 50 °C The drying time is 8h to ensure that the moisture content of the water-containing board is controlled at 10%; the dried board is sent to CO 2 In carbonization c...
Embodiment 2
[0064] The preparation method of a novel carbon-fixing calcium silicate board provided by this embodiment, according to the mass percentage, includes the raw materials of the following components:
[0065] Magnesium slag 72%, fly ash 15%, pulp fiber 8%, flocculant (sodium carboxymethyl cellulose) 5%.
[0066] Put the magnesium slag, fly ash and pulp fiber into the mixer according to the proportion and mix them evenly, then add the flocculant and water to continue stirring to obtain a slurry with a concentration of 15%; the prepared slurry is transported to the flow pulping board The machine forms the wet blank sheet, pressurizes the wet blank sheet in the press to squeeze out the water, improves the density of the sheet, and ensures the thickness of the sheet is 6-8mm, and sends the pressurized sheet to a drying box with a temperature of 60 °C The drying time is 6h to ensure that the moisture content of the water-containing board is controlled at 15%; the dried board is sent t...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Density | aaaaa | aaaaa |
| Flexural strength | aaaaa | aaaaa |
| Density | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More