【摘要】 初步探讨了抑制高性能混凝土自收缩的措施 ,包括利用多孔骨料与多孔性矿物掺和料的自养护作用、粉煤灰的“能量滞后释放效应”、膨胀剂的补偿收缩作用 ,纤维的约束作用以及有机收缩低减剂的表面张力降低作用等。另外 ,早期养护也可有效地抑制早期自收缩更多还原

【Abstract】 ? Several measures were tested to restrain the autogenous shrinkage of HPC. The autogenous shrinkage of HPC can be depressed by the self curing function of porous aggregate or porous mineral admixtures, the energy release lagging effect of nv ash, the shrinkage compensation of expansion additives, or the decrease of surface tension by organic shrinkage reducing agents, fibres constraint, among which the addition of pre soaked zeolite powder is especially effective. Preliminary curing at young ages could reduce the early autogenous shrinkage of HPC. 〔更多还原