英语翻译The effects of PEO side chain length and the degree of b

英语翻译
The effects of PEO side chain length and the degree of backbone polymerization on the fluidity of cement paste were investigated.Fluidity tests were carried out for cement pastes containing various total dosages SPs.However,SP does not contain only dispersant components but also unreacted monomers.Therefore,it is necessary to correct the SP dosage to an “effective polymer dosage.” The total SP dosages were corrected to effective polymer dosages by taking into account the true polymer contents as shown in Table 2.The effective polymer dosages of SPs at each w/c were calculatedto show five of Zeta for SP2.
Plastic viscosity and shear yield stress were evaluated from the relationship between shear stress and shear rate,such as in Fig.7 for SP2.In some cases in the measurement,cement paste showed a behavior of Bingham fluid as in the case of 120 min in Fig.7.However,in some cases,the relationship between shear rate and shear stress was not so simple—
for example,the case of 0 min in Fig.7.It was not clear why the paste showed complicated behavior in the case of 0 min in Fig.7.However,it is useful to compare the rheological behavior variations by the different chemical structures of SPs.In this paper,the shear yield stress and plastic viscosity were defined from the measurement results as follows.
Shear yield stress was defined as the intercept point on the Y-axis.The intercept point was decided by extrapolating the linear part nearest the Y-axis as shown in Fig.7.Plastic viscosity was defined as the slope of the linear part of the relationship around 50 to 100 1/s of shear rate.In the case of higher plastic viscosity,it was calculated at lower shear rate on the assumption of the same relationship,around 50 to 100 1/s of shear rate,because of the mechanical limit of the rheometer used.
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The effects of PEO side chain length and the degree of backbone polymerization on the fluidity of cement paste were investigated.Fluidity tests were carried out for cement pastes containing various total dosages SPs.However,SP does not contain only dispersant components but also unreacted monomers.Therefore,it is necessary to correct the SP dosage to an “effective polymer dosage.” The total SP dosages were corrected to effective polymer dosages by taking into account the true polymer contents as shown in Table 2.The effective polymer dosages of SPs at each w/c were calculated to show five of Zeta for SP2.
我们展开调查聚氧乙烯支链的长度及主链聚合反应度对水泥净浆流动性的影响,并针对含有各种剂量怜电位（SP）水灰比的水泥净浆进行试验.然而,SP不只含有分散质成分,它还有未反应的单体.因此,有必要将SP的剂量修正到一个“有效的聚合物剂量”；在执行修正时,要对表2显示的准确聚合物含量加以考虑.每个水灰比的SP有效聚合物剂量要被计算至SP2界面动电势（Zeta）的5mV.
Plastic viscosity and shear yield stress were evaluated from the relationship between shear stress and shear rate,such as in Fig.7 for SP2.In some cases in the measurement,cement paste showed a behavior of Bingham fluid as in the case of 120 min in Fig.7.However,in some cases,the relationship between shear rate and shear stress was not so simple—
for example,the case of 0 min in Fig.7.It was not clear why the paste showed complicated behavior in the case of 0 min in Fig.7.However,it is useful to compare the rheological behavior variations by the different chemical structures of SPs.In this paper,the shear yield stress and plastic viscosity were defined from the measurement results as follows.
通过参考图7显示SP2的剪切应力和速率的关系来判断其塑性粘度与剪切屈服应力.有时在测量过程,水泥净浆会产生宾汉流体现象,犹如图7的120分钟情况一样.不过,在某些情况,剪切应力和速率的关系并不这么简单,例如在图7的0分钟,净浆表现复杂行为的原因就搞不清楚.然而,对SP不同的化学组构所表现的流变行为的差异进行比较是很有用处的.
通过测量的结果,本文将剪切屈服应力及塑性粘度的定义如下：
Shear yield stress was defined as the intercept point on the Y-axis.The intercept point was decided by extrapolating the linear part nearest the Y-axis as shown in Fig.7.Plastic viscosity was defined as the slope of the linear part of the relationship around 50 to 100 1/s of shear rate.In the case of higher plastic viscosity,it was calculated at lower shear rate on the assumption of the same relationship,around 50 to 100 1/s of shear rate,because of the mechanical limit of the rheometer used.
剪切屈服应力被定义为Y轴上的交会点.这交会点的确定是以最靠近Y轴的线性部分外推所得,如图7所示.塑性粘度被定义为1秒剪切速率约50至100之间关系的线性部分的坡度.要计算更高的塑性粘度,鉴于所使用的流变仪的机械限制,只能以相同的1秒剪切速率约50至100之间的关系为假设,以较低的剪切速率来计算.