Environment-friendly water-resistant shale hollow brick and preparation method thereof
A water-resistant, hollow brick technology, applied in the field of building materials, can solve the problems of inability to meet social needs, low water absorption, high cost, and achieve the effects of reducing the amount of cement used, strong water absorption, and light finished product.
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[0025] Example 1
[0026] An environmentally friendly water-resistant shale hollow brick, which is composed of the following raw materials in parts by weight: 28 parts of purple sand shale, 32 parts of coal gangue, 4.5 parts of fluorite tailings, 18 parts of iron shale, 4 parts of rock sand crystals, ceramics 12 parts of grains, 4 parts of asbestos powder, 6 parts of sepiolite powder, 6 parts of alumina, 3 parts of silicon carbide, 2.5 parts of titanium dioxide, 5 parts of crop straw powder, 2 parts of glass fiber, 12 parts of super absorbent resin, 2.5 parts of lignocellulose Parts, 5 parts of anticorrosive paint.
[0027] Wherein, the crop straw powder is prepared by the following method:
[0028] (1) Collect crop stalks, cut into sections, and dry until the moisture content is within 20%, and the drying temperature is controlled at 60-70°C;
[0029] (2) Send the dried crop stalks to the kneading machine for kneading treatment, and water spray treatment is performed while kneading;...
Example Embodiment
[0042] Example 2
[0043] An environmentally friendly water-resistant shale hollow brick, which is composed of the following raw materials in parts by weight: 26 parts of purple sand shale, 30 parts of coal gangue, 4 parts of fluorite tailings, 15 parts of iron shale, 3 parts of rock sand crystal, ceramics 8 parts of grains, 3 parts of asbestos powder, 5 parts of sepiolite powder, 5 parts of alumina, 2 parts of silicon carbide, 1.5 parts of titanium dioxide, 4 parts of crop straw powder, 1 part of glass fiber, 8 parts of super absorbent resin, 1.5 parts of lignocellulose Parts, 4 parts of anti-corrosion paint.
[0044] The preparation process of the crop straw is the same as in Example 1.
[0045] The preparation process of the environmentally-friendly and water-resistant shale hollow brick is the same as in Example 1.
[0046] The performance test of the hollow brick described in this embodiment is as follows: compressive strength 13.11Mpa, shrinkage value 0.3mm / m, frost resistance ...
Example Embodiment
[0047] Example 3
[0048] An environmentally friendly water-resistant shale hollow brick, which is composed of the following raw materials in parts by weight: 30 parts of purple sand shale, 35 parts of coal gangue, 5 parts of fluorite tailings, 20 parts of iron shale, 5 parts of rock sand crystals, ceramics 15 parts of grains, 5 parts of asbestos powder, 8 parts of sepiolite powder, 7 parts of alumina, 4 parts of silicon carbide, 4 parts of titanium dioxide, 6 parts of crop straw powder, 3 parts of glass fiber, 15 parts of super absorbent resin, 3 parts of lignocellulose Parts, 6 parts of anticorrosive paint.
[0049] The preparation process of the crop straw is the same as in Example 1.
[0050] The preparation process of the environmentally-friendly and water-resistant shale hollow brick is the same as in Example 1.
[0051] The performance test of the hollow brick described in this embodiment is as follows: compressive strength 13.24Mpa, shrinkage value 0.3mm / m, frost resistance m...
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