Super retarded self-setting mortar reinforcing admixture and preparation method
An ultra-retarding and admixture technology, applied in the field of water conservancy underground cut-off walls, can solve the problems of compressive strength, impermeability and setting time constraints, so as to improve the underwater strength and uniformity, delay the initial setting time and The effect of final setting time
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[0041] The preparation method of super-retarded self-setting mortar reinforced admixture comprises the following steps:
[0042] 1) At a temperature of 40±5°C, first add water to the production equipment according to the weight ratio, then gradually add water-based epoxy resin emulsion under the condition of stirring at a speed of 500r / min, and stir for 5-8 minutes; water-based epoxy The emulsion can be stirred and ground at high speed without demulsification, has excellent physical and mechanical properties, and has good film-forming properties.
[0043] 2) Add thickener and stir for 4-5 minutes;
[0044] 3) Add retarder, water reducer and anti-dispersant, and stir for 4-5 minutes;
[0045] 4) Add mud inhibitor and stir for 4 to 5 minutes;
[0046] 5) Then add the enhancer, stir and react for 5-8 minutes, and stir until the finished product is evenly dispersed without obvious bubbles.
Embodiment 1
[0048] The reinforcing admixture is composed of the following mass fraction components:
[0049] Composed of 5% white sugar and 5% sodium citrate, 3% mud inhibitor (ZN01 mud inhibitor of China Communications Wuhan Gangwan New Material Co., Ltd., the addition of mud inhibitor has good dispersibility and solubility, and improves the soil's resistance to polycarboxylic acid. 10% 6C polycarboxylate superplasticizer (polycarboxylate superplasticizer S06 of Wugang Institute, which has low dosage and high water reducing rate, which is conducive to the improvement of concrete strength ), 0.02% anti-dispersant (YSA5010 anti-dispersant produced by Jiaozuo Yibio Chemical Co., Ltd.), 13% EP-20 water-based epoxy resin emulsion, 1% thickener (bioglue modified material, its average relative The molecular mass is 2×10 6 ~1.5×10 7 , viscosity 250~350Pa·s), 10% reinforcing agent (reinforcing agent SF01 provided by China Communications Wuhan Gangwan New Material Co., Ltd., the main component i...
Embodiment 2
[0061] The reinforcing admixture is composed of the following mass fraction components:
[0062] 8% white sugar and 8% sodium citrate, 4% mud inhibitor (ZN01 mud inhibitor of China Communications Wuhan Gangwan New Material Co., Ltd.), 15% 6C polycarboxylate superplasticizer (Wugang Institute Polycarboxylate superplasticizer S06), 0.04% anti-dispersant (YSA5010 anti-dispersant produced by Jiaozuo billion biochemical industry), 18% EP-20 water-based epoxy resin emulsion, 2% thickener (bioglue modified Sexual material, its average relative molecular mass is 2×10 6 ~1.5×10 7 , Viscosity 250 ~ 350Pa · s. ), 13% of the reinforcing agent (the reinforcing agent provided by CCCC Wuhan Harbor New Materials Co., Ltd.), 31.96% of water.
[0063] The preparation method of the reinforcement additive is the same as that described in Example 1.
[0064] The self-setting mortar proportion of embodiment 2 is as follows:
[0065]
[0066] The compressive strength, setting time and imperm...
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