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Study of Adsorptive Behaviors of Polynaphthalene Sulfonate Superplastizer on C3S and C2S
Author(s): LI Yan-jun, QI Tao, LI Wen-chan, LIU Tong, WU Yuan-chao, LIU Xiao-cun
Pages: 362-
365,412
Year: 2011
Issue:
3
Journal: Journal of Building Materials
Keyword: 硅酸三钙; 硅酸二钙; 萘系高效减水剂; 吸附;
Abstract: 采用紫外-可见吸收光谱法测定了萘系高效减水剂(FDN)在C3S,C2S颗粒表面的吸附量,并对该减水剂在这2种单矿物颗粒表面的吸附行为进行了研究.结果表明:C3S,C2S对FDN的极限吸附量随着时间的延长而变小;在相同的水化时间下,FDN在C3S颗粒上的吸附量略大于在C2S颗粒上的吸附量;当初始质量浓度ρ0小于1 020 mg/L时,C3S,C2S对FDN的吸附量随着时间的延长而增大,当ρ0大于l ...
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