c30

The strength of inner lining has smaller impact on the stress and deformation of the liner , and in the specific engineering C30 concrete is enough .

内衬强度对衬砌受力和变形的影响较小，实际工程中采用C30混凝土即可。

Large volume waterproof concrete with C30 strength grade and seepage resistance P > 25 can be mixed by adding expansion agent and reduce-water agent .

经试验表明，在砼中复合掺加膨胀剂和高效减水剂，可制得强度等级为C30，抗渗等级P＞25的大体积防水砼。

In the study , the active fly ash was used to make C30 ~ C50 grade concrete with excessive replacement and also plus super plasticizer .

研究时，用活化后的粉煤灰以超量取代部分水泥并掺加高效减水剂的方法配制C30～C50混凝土。

The concrete strength can get the C20 or C30 grade when the structure is reinforced in the non-stop condition , which achieves the expected function and notable economic performance .

在不停产的条件下，对结构进行加固，使混凝土强度达到C20、C30强度等级以上，达到预期的使用功能。

These products are suitable to ormulate commercial concrete with great property and strength ( above C30 ) regardless of using in site or after a long-distant delivery .

可应用在现场搅拌及远距离输送的高性能、高强度（C30以上）的耐久性商品混泥土中。

Taking C30 concrete for example , analysis the durability index of common concrete and co-dope concrete , and proved the engineering application feasibility of fly ash for co-dope concrete .

本文以C30为例，分析了粉煤灰双掺混凝土和普通混凝土耐久性指数，论证了粉煤灰双掺混凝土工程应用的可行性。

Based on the results of Bayes estimations , the standard deviations for the compressive strength of RAC with strength grades of C20 and C30 were proposed .

根据统计分析和贝叶斯估计结果，建议了强度等级为C20和C30再生混凝土抗压强度的标准值与标准差的取值。

Concretes of C30 and C60 were prepared with iron mine tailings as fine aggregate and coarse aggregate and with natural sand and common crushed stone separately .

分别以铁尾矿砂和铁尾矿石代替天然砂和普通碎石配制了C30和C60两个强度等级的混凝土。

Volvo confirmed that it had built at least one battery electric version of the C30 coupe , but said a decision on putting the car into series production won 't be made until the fall or winter .

沃尔沃确认它曾经制造了一辆全电力车，型号C30，但是它也说在今年秋天或者冬天之前，该车不会投入正式生产。

All the patients were measured by self rating depression scale ( SDS ), self rating anxiety scale ( SAS ), and quality of life questionnaire core 30 ( QLQ C30 ), which were as measuring standards before and after home visiting .

并应用焦虑自评量表（SAS）、抑郁自评量表（SDS）及恶性肿瘤患者生活质量问卷（QLQC30），作为家庭访视前后的测评标准。

Biomarkers compounds studies show that there are low Pr / Ph ratios , abundant gammacerane and > C30 hopanes and dibenzothiophenes for the western Qaidam oils , reflecting an anoxic and saline-hypersaline environment for their source-rocks .

原油生物标志化合物研究发现，西部原油Pr／Ph比值较低，含丰富的伽玛蜡烷、＞C（30）藿烷和硫芴，反映了它们形成于强还原超咸水&咸水环境；