A kind of fluidity lightweight gypsum ground cushion material and preparation method thereof
A technology of fluidity and layer materials, which is applied in the field of fluidity light gypsum ground cushion material and its preparation, can solve the problems of restricting the large-scale promotion of gypsum-based self-leveling mortar and the increase of the cost of ground engineering, so as to reduce the cost and improve the Stability, low density effect
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Embodiment 1
[0034] This embodiment provides a kind of fluidity lightweight gypsum base ground cushion material, and the preparation method comprises the following steps:
[0035] 1. Weigh the following raw materials: 700g of desulfurized building gypsum powder, 30g of ordinary Portland cement PO42.5, 190g of heavy calcium powder, 80g of light sand (with a particle size of 50-90 mesh and a natural bulk density of 100kg / m 3 ), water-retaining thickener 0.8g (hydroxypropyl methylcellulose ether with a viscosity of 20000mPa.s), modified rosin air-entraining agent 1.5g, powder foam stabilizer polyvinyl alcohol 0.5g, polycarboxylic acid water-reducing Agent 2.0g, high-efficiency protein retarder 0.2g.
[0036] 2. Mix the above powder evenly and set aside;
[0037] 3. Use a straw to absorb 6.4g of liquid foam stabilizer soluble oil and add it to 640g of water.
[0038] 4. Add the powder in step 2 to the liquid in step 3, and stir at a low speed for 120 seconds with a mortar mixing frame to pre...
Embodiment 2
[0041] This embodiment provides a kind of fluidity lightweight gypsum base ground cushion material, and the preparation method comprises the following steps:
[0042] 1. Weigh the following raw materials: 700g of desulfurized building gypsum powder, 30g of ordinary Portland cement PO42.5, 220g of heavy calcium powder, 50g of light sand (with a particle size of 50-90 mesh and a natural bulk density of 100kg / m 3 ), water-retaining thickener 0.8g (hydroxypropyl methylcellulose ether with a viscosity of 20000mPa.s), sodium rosinate air-entraining agent 2.5g, powder foam stabilizer polyvinyl alcohol 0.5g, polycarboxylate superplasticizer 2.5g, high-efficiency protein retarder 0.2g.
[0043] 2. Mix the above powder evenly and set aside;
[0044] 3. Use a straw to absorb 5.5g of liquid foam stabilizer soluble oil and add it to 550g of water.
[0045] 4. Add the powder in step 2 to the liquid in step 3, and stir at a low speed for 120 seconds with a mortar mixing frame to prepare a ...
Embodiment 3
[0048] This embodiment provides a kind of fluidity lightweight gypsum base ground cushion material, and the preparation method comprises the following steps:
[0049] 1. Weigh the following raw materials: 700g of desulfurized building gypsum powder, 40g of ordinary Portland cement PO42.5, 200g of heavy calcium powder, 60g of light sand (with a particle size of 50-90 mesh and a natural bulk density of 100kg / m 3 ), water-retaining thickener 0.9g (hydroxypropyl methylcellulose ether with a viscosity of 20000mPa.s), modified rosin air-entraining agent 1.0g, powder foam stabilizer polyvinyl alcohol 0.5g, polycarboxylic acid water-reducing Agent 2.5g, high-efficiency protein retarder 0.2g.
[0050] 2. Mix the above powder evenly and set aside;
[0051] 3. Use a straw to absorb 5.5g of liquid foam stabilizer soluble oil and add it to 550g of water.
[0052] 4. Add the powder in step 2 to the liquid in step 3, and stir at a low speed for 120 seconds with a mortar mixing frame to pre...
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Abstract
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