Incorporating with mineral admixtures could control the tendency of evening shrinkage of hpc , but the effect is not much remarkable . and the expansive agent uea could compensate shrinkage , but different curing conditions have significant effects on the volume stabilization of hpc . it is necessary to enhance the water curing at the young age and try the best to prolong the curing time 本文对高性能混凝土体积稳定性的特点及其补偿措施进行了系统的研究，主要包括：指出了水胶比对高性能混凝土体积稳定性的影响；分析了掺矿物外加剂高性能混凝土体积稳定性的特点；研究了联合掺加矿物外加剂和膨胀剂对高性能混凝土收缩的补偿效果；探索了用膨胀型中热水泥来配制高性能混凝土对收缩的改善。
It has a good compensation to shrinkage , and can improve the anti - cracking and anti - penetrating performance of concrete . it is often added to concrete to produce expanding concrete or the anti - cracking and anti - penetrating concrete , which are widely used in such engineering as waterproofing , anti - penetrating , mending etc . the expansion admixture include at present sulphoaluminate such as uea , ea - l etc ) , calcium oxide , and some composite expansion admixtures 混凝土膨胀剂在普通混凝土中可抵消干缩或温度降低引起的拉应力，起到良好的补偿收缩作用，能提高混凝土的抗裂防渗能力，常用于配制膨胀混凝土或抗裂防渗混凝土，广泛地应用于防水、抗渗、修补等工程中。
The result of experiment shows that und er the conditions of proper ai r - entraining , concrete with 20 % fly ash has excellent frost - resistance . the frost - resistance of concrete with 55 % fly - ash which is admixed with united expansive agent ( uea ) has been improved greatly . the frost - resistance of sulfate aluminate cement concrete with high volume of fly - ash is dramatically lower than that of silicate cement concrete with the same volume of fly - ash 试验结果表明：粉煤灰掺量为20的混凝土在适量引气的条件下具有良好的抗盐冻性能；粉煤灰掺量为55的混凝土在掺加uea膨胀剂后其抗盐冻性能有明显改善；大掺量粉煤灰硫铝酸盐水泥混凝土的抗盐冻性大大低于同掺量的硅酸盐水泥混凝土。
Abstract : the result of experiment shows that und er the conditions of proper ai r - entraining , concrete with 20 % fly ash has excellent frost - resistance . the frost - resistance of concrete with 55 % fly - ash which is admixed with united expansive agent ( uea ) has been improved greatly . the frost - resistance of sulfate aluminate cement concrete with high volume of fly - ash is dramatically lower than that of silicate cement concrete with the same volume of fly - ash 文摘:试验结果表明：粉煤灰掺量为20的混凝土在适量引气的条件下具有良好的抗盐冻性能；粉煤灰掺量为55的混凝土在掺加uea膨胀剂后其抗盐冻性能有明显改善；大掺量粉煤灰硫铝酸盐水泥混凝土的抗盐冻性大大低于同掺量的硅酸盐水泥混凝土。
In this paper , the confecting technique on many ingredients " hpc was studied , and the optimum ratio of many ingredients in hpc was confirmed by regression method in spss and optimizing method in matlib , considering mechanics performance of high performance concrete and collapsing slump of hpc mixture . c : bf : fa : sf : uea = 3 : 1 : 1 : 0 . 2 : 0 . 02 . we confected out hpc with the ratio 用这一比例关系我们配制出塌落度达130mm 、早期强度高、后期强度增长幅度大的高性能混凝土，其7d 、 28d和56d的抗压强度分别为47 . 55mpa 、 71 . 05mpa和88 . 8mpa ，后期强度增长率可达到25 。
