Additive for building material and building material containing same
A technology of building materials and additives, applied in the field of construction, can solve problems such as increased sand and gravel mining volume and environmental impact, and achieve the effect of reducing mining volume and effectively utilizing existing resources
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Embodiment 1
[0041] This embodiment provides a kind of additive for building materials, comprising:
[0042] Material selection: organic resins, dyes, and paint wastes are used as raw materials, and the solid content of raw materials is 0.5wt%, pH=9;
[0043] Demulsification: Use sodium hydroxide to adjust the pH of the raw material to pH 10 to obtain material A;
[0044] Flocculation: Add polyferric chloride to material A to pH=4, then add polyaluminum chloride to pH=2 to obtain material B;
[0045] Separation: after adjusting the pH of material B to 7, calcium carbonate is added therein so that calcium carbonate accounts for 10 wt% of material B, and then solid-liquid separation is carried out; the material after solid-liquid separation is crushed and dried to obtain additives for building materials , and the drying temperature is 55°C.
Embodiment 2
[0047] This embodiment provides a kind of additive for building materials, comprising:
[0048] Material selection: organic resin wastes are used as raw materials, the solid content of raw materials is 4wt%, pH 8;
[0049] Demulsification: Use sodium hydroxide to adjust the pH of the raw material to pH 10.5 to obtain material A;
[0050] Flocculation: Add polyferric chloride to material A to pH=6, then add polyaluminum chloride to pH=3 to obtain material B;
[0051] Separation: after adjusting the pH of material B to 8, calcium carbonate is added therein so that calcium carbonate accounts for 2wt% of material B, and then solid-liquid separation is carried out; the material after solid-liquid separation is crushed and dried to obtain an additive for building materials , and the drying temperature is 65°C.
Embodiment 3
[0053] This embodiment provides a kind of additive for building materials, comprising:
[0054] Material selection: dyes, paint wastes and organic resin wastes are used as raw materials, the solid content of raw materials is 2wt%, pH=7;
[0055] Demulsification: Use sodium hydroxide to adjust the pH of the raw material to pH 10.25 to obtain material A;
[0056] Flocculation: Add polyferric chloride to material A to pH = 5, then add polyaluminum chloride to pH = 2.5 to obtain material B;
[0057] Separation: After adjusting the pH of material B to 7.5, calcium carbonate is added thereto so that calcium carbonate accounts for 1 wt% of material B, and then solid-liquid separation is carried out; the material after solid-liquid separation is crushed and dried to obtain additives for building materials , wherein the drying temperature is 45°C.
[0058] The building material additive that embodiment 1-3 obtains is detected, and the results are as follows:
[0059]
[0060] ...
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Abstract
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