化学添加剂对细分散高钙粉煤灰复合材料性能的影响

IF 0.5 Q4 CHEMISTRY, MULTIDISCIPLINARY

Journal of Siberian Federal University. Chemistry Pub Date : 2020-09-01 DOI:10.17516/1998-2836-0192

O. M. Sharonova, V. M. Kirilets, L. Solovyov, A. Anshits

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引用次数: 1

摘要

以克拉斯诺亚尔斯克TPP-2静电除尘器第4场的细分散高钙粉煤灰(HCFA)为基础，在水胶比W/B = 0.25的条件下，添加Melflux 5581F高效减水剂，得到复合材料(CM)。研究了高效减水剂浓度在0.06 ~ 0.6 wt. %范围内对复合材料强度性能的影响。研究了硫酸钠作为水化硬化的促进剂和磷酸钠、四硼酸钠和柠檬酸作为水化硬化的缓凝剂的作用。确定了高效减水剂的最佳浓度(0.3 wt. %)。结果表明，硫酸钠有助于提高CM的强度，四硼酸钠和柠檬酸的加入可有效调节凝固时间

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Influence of Chemical Additives on the Properties of Composite Materials Based on Fine-Dispersed High-Calcium Fly Ash

Composite materials (CM) were obtained on the basis of fine- dispersed high-calcium fly ash (HCFA), selected from the 4th field of electrostatic precipitators of Krasnoyarsk TPP-2, with the addition of Melflux 5581F superplasticizer at the water: binder ratio W/B = 0.25. The influence of the concentration of superplasticizer in the range 0.06-0.6 wt. % on the strength properties of composite materials was studied. The effect of the addition of sodium sulfate as an accelerator of hydration hardening and additives-retarders of sodium phosphate, sodium tetraborate and citric acid, were studied. The optimal concentration of superplasticizer was established (0.3 wt. %). It was determined that sodium sulfate helps to improve the strength of CM, and the addition of sodium tetraborate and citric acid can effectively regulate the setting time

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来源期刊

Journal of Siberian Federal University. Chemistry CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

1.10

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0.00%

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