2) medium-low grade concrete
中低强度等级混凝土
1.
Experimental research about the new air-entraining agent effect on frost resistance of medium-low grade concrete
新型引气剂对中低强度等级混凝土抗冻性能影响的试验研究
3) concrete strength grade
混凝土强度等级
1.
The pile length,concrete strength grade and proportioning are determined by stratum condition,bearing capacity,strength and construction method.
根据地层条件初步确定桩长,根据承载力确定混凝土强度等级,根据强度要求及施工方法选用适当的混凝土配合比,通过试验确定单桩承载力、桩轴力的传递规律、桩侧阻力发挥机理及桩顶沉降量与桩身变形的关系。
2.
Through theoretical analysis and calculation examples,the principle for the rational choice of the concrete strength grade has been put forward by the author,which can be used as the reference of relevant engineering design.
目前混凝土结构设计中混凝土强度等级的选择有越来越高的发展趋势,笔者通过理论分析及计算实例,提出了合理选用混凝土强度等级的原则,可供有关工程设计的参考。
3.
In steel reinforced concrete structure, the synergistic effect of shaped-steel and concrete, shaped-steel layout and ratio, concrete strength grade and loading form are the keys to influence ultimate bearing capacity.
型钢混凝土结构中,型钢与混凝土的协同工作能力,型钢的配钢形式、配钢率,混凝土强度等级及荷载形式是影响型钢混凝土结构承载力的关键。
4) equivalent compressive strength of concrete
混凝土等效强度
5) concrete strength
混凝土强度等级
1.
Shear strength of RC shear wall and other different factors were analyzed by using orthographic design method and code method,covering concrete strength gradation,the ratio of depth to width,transverse steel reinforcement ratio,the results indicated the important degree of different factors.
利用正交试验设计法、规范方法对影响钢筋混凝土剪力墙抗剪承载力的各因素进行分析,考虑的因素包括混凝土强度等级、高宽比、横向钢筋配筋率,得出了各种影响因素的重要程度。
6) middle-and-low strength concrete
中低强度混凝土
1.
The middle-and-low strength concrete C20~C40 of high fly ash content was then prepared by adding the fly ash admixture and water reducer to the concrete grout,in which the ratio of fly ash replacing cement could account for 40%~50%.
用此掺合料,掺入高效减水剂,配制出高掺量粉煤灰C20~C40中低强度混凝土,粉煤灰取代水泥率可达到40%~50%,试样7d抗压强度与基准混凝土相当,28d与60d抗压强度达到或超过基准混凝土。
补充资料：中等
1.介于上等与下等或高等与初等之间的等级。 2.形容(身材)不高不矮。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条