Preparation and Performance Study of Environmentally Friendly Dust Suppressants
In order to inhibit the dispersion of dust during the construction and transport process and to reduce the hazards to the construction environment and the health of the workers,sodium dode-cylbenzene sulfonate was selected as the surfactant,sodium polyacrylate with strong adhesion and high water absorption was selected as the coagulant,and triethanolamine was selected as the water-retaining agent,and the appropriate mass concentration and range of orthogonal tests were carried out,using the orthogonal test method with the evaluation indexes of the hardness and the wind erosion rate to obtain the optimal formulation of the dust suppressant.The range of orthogonal test was carried out,and the optimal formulation of the dust suppressant was obtained by using the orthogonal test method with wa-ter retention,hardness and wind erosion rate as the evaluation indexes,and the optimal formulation of the dust suppressant was obtained by the orthogonal test analysis method as 1.0％sodium dodecyl-benzene sulfonate,0.2％sodium polyacrylate and 2.5％triethanolamine.Based on the obtained optimal formulation of dust suppressant pH,hardness,water retention rate and wind erosion resistance per-formance test,measured pH is 7.5,24 h at room temperature water retention rate of 38％,there is a good moisture retention effect,and the formation of the hardness of the hardness of the curing layer hardness can be up to 42.75 HA,after 18 m/s wind disturbance,the wind erosion of the dust samples is 0.74％,the effect of its dust suppression is significant.
万方数据
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