膨胀剂

The test studied the effects of expanding admix tures of various additive rates and fineness on HPC.

试验研究了不同掺量和不同细度的膨胀剂对高性能混凝土的影响。

Using B Grade bauxite as bone material and A Grade bauxite as powder,different binder composition castable for permanent lining fo fundish were studied,with cyanite and sillimanite as expansion additives and Zimujie clay as sinter additive and plastic additive.

以B级高铝矾土熟料为骨料，A级矾土熟料为基质料，同时加入蓝晶石、硅线石为膨胀剂，紫木节粘土为烧结剂、塑化剂，研究了分别采用硅灰、高铝水泥、水玻璃、复合结合剂等为结合剂的不同配方组成的浇注料。

Finally the modified mechanism of fiber, redispersion emulsoid powder, water-retentive admixture and expansive admixture have been analyzed.

最后，该文还分析了纤维、可再分散乳胶粉、保水剂、膨胀剂这四种重要组分对砂浆的改性机理。

Influences of basic component (fiber, redispersable emulsoid powder, water-retentive admixture, expansive admixture, mixture and cement-to-sand ratio )of Dry-mixed Mortar on essential performance of mortar have firstly been summarized. The results show that :(1) After fiber is mixed into Dry-mixed Mortar , toughness ,crack resistance and unpermeability of mortar will be improved; Influence of different length mixed fiber on toughness of mortar precedes single-length fiber, but influence on crack resistance of mortar is the same.

该文首先研究了干拌砂浆的基本组分：纤维、可再分散乳胶粉、保水剂、膨胀剂、掺合料以及灰砂比对砂浆的基本性能的影响，结果表明：(1)在干拌砂浆中加入短切纤维，可以使砂浆的韧性得到改善，提高砂浆的抗裂性、抗渗性；不同长度的纤维进行混杂后对砂浆韧性的提高比单一长度纤维具有更好的效果，但对砂浆抗渗性的改善效果与单一长度纤维差别不大。

In the redispersable powders, WACER powder is excellent. When fine percentage of redispersable emulsoid powder is 1, toughness, adhesive performance of mortar have improved.(3) When MC was mixed into mortar, water-retentive performance, toughness, adhesive performance of mortar have improved and 28d dry shrinkage of mortar has reduced.(4) When AEA was mixed into mortar, dry shrinkage of mortar reduced and infiltration resistance has improved.(5) When cement-to-sand ratio is 1:2.5 , toughness of mortar is perfect.

2WACKER的VAE和551Z两种乳胶粉的效果较好，最佳质量掺量均为1%，对砂浆的和易性、韧性、粘结性能均有较大改善；(3)在干拌砂浆中加入MC保水剂后，砂浆的保水性提高，韧性得到改善，粘结性能也得到了增强，砂浆的28d干缩值也有所下降；(4)砂浆中加入AEA膨胀剂后，砂浆的干缩下降，抗渗性也有一定提高；(5)灰砂比为1：2.5是较为理想的，砂浆的和易性较好，韧性较好；(6)砂浆中加入掺合料可以使砂浆的韧性得到提高，但是会使砂浆的粘结性能下降。

The particle has been made by use of the leaching residue ,savageness and kaolin as raw materials. The mass quality proportions are as follow: the leaching residue is 66%, kaolin is 21%,vermiculite is 13%.

取得的主要成果有： 1、分别以氨浸渣和酸浸渣为主要原料、天然高岭土为粘结剂、天然蛭石为膨胀剂成功制备了浸出渣颗粒。

The expansion mechanism of hydroxide expanding phase for oil well cement slurry are discussed on the basis of principle of chemical thermodynamics and topochemical reaction model.

姚晓要 基于膨胀剂原地反应模型和化学热力学原理，讨论了晶体生长压的源动力及水泥浆体体积膨胀与结晶压的关系。

After mixing suitable amounts of corn chaffs and stalks used as amendment and bulking agent, it was transformed into organic mature by composting in about five weeks in an aerated static pile reactor vessel.

以畜禽饲养场排放的鸡粪、牛粪为底物，以玉米糠和玉米秸秆短节作调理剂和膨胀剂，研究了畜禽废弃物的强制通风静态堆肥化处理及其生物学效应。

Following is the factors ideating with the surface of old concrete in different way ( including brushing surface , chiseling surface , cleaving surface ), adherence agent ( including cement slurry , cement sand slurry , cement slurry with the u expansion agent ), the freeze - thaw circulation times and air - entraining .

主要考察了老混凝土表面不同处理方式(刷毛面，凿毛面，劈裂面)、界面粘结剂类型(水泥净浆，水泥砂浆， u型膨胀剂水泥浆)、冻融循环次数等对新老混凝土粘结面劈拉强度的影响，以及冻融作用下新混凝土加气对粘结面劈拉强度的影响。

The prior materials used for improving the self-contraction of the concrete mainly comprise expansion agent, shrinkage reducing agent and fiber, but the materials are not effective when the materials are used solely.

目前改善混凝土自收缩的材料主要包括：膨胀剂、减缩剂和纤维。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。