ATMP and SG were effective hydration retarders of cement. The goal of this study was to provide the comparison of the influence of ATMP and SG on the performance and hydration of Portland cement. The setting time at 20 °C and 35 °C, compressive strength and fluidity of cement pastes containing either ATMP or SG at different dosages from 0.02% to 0.10% were tested respectively. The hydration behaviors of Portland cement with ATMP and SG were investigated by the means of isothermal calorimetry measurements, X-ray diffraction (XRD), thermogravimetric analysis (TGA) and scanning electron microscope (SEM). The results showed that the retarding effect of ATMP was much intensive than SG, especially in the case of a higher temperature; the “dispersion loss resistant” of ATMP were superior to SG; The limitation dosage of ATMP and SG was 0.15%; Although SG could reduce cement hydration cumulative heat and hydration evolution rate at some degrees, the effect was much weaker than ATMP. ATMP continued to inhibiting the hydration of C₃S effectively during the whole hydration period. SG was also inhibiting the hydration of C₃S during the hydration of 1d, but it promoted the hydration of C₃S beyond 1d at some degrees.

ATMP和SG是有效的水泥水合作用缓凝剂。这项研究的目的是提供ATMP和SG对硅酸盐水泥的性能和水合作用的影响的比较。分别测试了在20°C和35°C下的凝固时间，含有ATMP或SG的水泥浆（从0.02％到0.10％的不同剂量）的抗压强度和流动性。通过等温量热法，X射线衍射（XRD），热重分析（TGA）和扫描电子显微镜（SEM）研究了硅酸盐水泥与ATMP和SG的水化行为。结果表明，ATMP的阻滞作用比SG强得多，特别是在较高温度的情况下。ATMP的“抗分散损失性”优于SG；ATMP和SG的限量为0.15％；尽管SG可以在一定程度上降低水泥水化累积热量和水化演化速率，但其效果远比ATMP弱。ATMP继续抑制C的水合作用₃在整个水合期有效S上。SG在1d的水合过程中也抑制了C ₃ S的水合，但在一定程度上促进了C ₃ S的水合超过1d。