Maximum crack width of mortars with PC and CLS would be reduced, but the development rate of maximum crack width of mortars with PNS is faster in comparison with control mortars.

• 掺聚羧酸类和掺木质素系减水剂都减小了砂浆的最大裂纹宽度，而掺萘系则加快了砂浆最大裂纹宽度的发展速度。