This paper investigates the effect of the five different superplasticizer (SPs), Melamine sulfonate (M), naphthalene-based (N), lignosulfonate (L), polyether-type (P-Ⅰ), and polyester-type polycarboxylate super-plasticizers (P-Ⅱ), on the rheology of fly ash pastes activated by different molarity of NaOH activator. The fluidity, viscoelasticity, inter-microstructure, and mechanism were evaluated for AAM fresh pastes. And the stability of SPs in the different molarity (0.01 M, 0.1 M, 1 M, 2 M, 3 M,5 M, and 10 M) of NaOH activators was investigated by the ATR-FTIR experiment. The results show that all SPs were the effective admixtures under low molarity (0.1 M) of NaOH activators, while N-SPs performed better in case of high molarity (10 M) of NaOH activators in AAM fly ash pastes. However, with the increase in the concentration of NaOH activators, the structure of SPs is destroyed into small molecules and has negligible effects on the rheology properties of fresh pasts. Unlike other SPs, the electrophilic effect of Ar and strong electricity of the sulfonic acid group of N-SPs may provide more adsorption sites and decrease the interaction between sulfonic groups.

本文研究了五种不同的高效减水剂（SPs）三聚氰胺磺酸盐（M）、萘基（N）、木质素磺酸盐（L）、聚醚型（P-Ⅰ）和聚酯型聚羧酸盐减水剂的效果。 P-Ⅱ), 不同摩尔浓度 NaOH 活化剂活化粉煤灰浆料的流变性。对 AAM 新鲜糊剂的流动性、粘弹性、微观结构和机理进行了评估。并通过ATR-FTIR实验研究了不同摩尔浓度（0.01 M、0.1 M、1 M、2 M、3 M、5 M和10 M）NaOH活化剂中SPs的稳定性。结果表明，在低摩尔浓度（0.1 M）的 NaOH 活化剂下，所有 SPs 都是有效的外加剂，而N- 在 AAM 飞灰浆料中 NaOH 活化剂的摩尔浓度高 (10 M) 的情况下，SP 表现更好。然而，随着 NaOH 活化剂浓度的增加，SPs 的结构被破坏为小分子，对新鲜糊状物的流变特性的影响可以忽略不计。与其他SPs不同，Ar的亲电效应和N -SPs的磺酸基团的强电可以提供更多的吸附位点并减少磺酸基团之间的相互作用。