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本文研究了水泥、泥土不同应用体系中萘系减水剂吸附量与吸附时间、减水剂浓度、体系温度的关系;探讨了萘系减水剂在水泥、泥土颗粒表面的吸附特性。结果表明:水泥和泥土对萘系减水剂的吸附量随时间延长而增加,泥土比水泥对减水剂的吸附量大;萘系减水剂的吸附符合Langmuir吸附模型。
In this paper, the relationship between the adsorption amount of naphthalene superplasticizer and the adsorption time, the concentration of superplasticizer and the temperature of the system were studied in different application systems of cement and soil. The adsorption characteristics of naphthalene superplasticizer on the surface of cement and soil particles were discussed. The results show that the adsorption capacity of cement and soil on naphthalene superplasticizer increases with time, and the adsorption capacity of soil superplasticizer to cement is higher than that of cement. The adsorption of naphthalene superplasticizer conforms to Langmuir adsorption model.