中低强度等级混凝土,medium-low grade concrete
1)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 ofmedium-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
英文短句/例句
1.Research and application of polycarboxylates high performance water-reducing admixture on the normal medium-low grade concrete聚羧酸系高效减水剂在中低强度等级混凝土中的研究与应用
2.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.Probe into Heightening Anti-Carbonization Capacity of Medium/Low Strength Grade Marine Concrete提高水工中低强度等级混凝土抗碳化能力措施探讨
4.Engineering Application of Low Grade Concrete High performance低强度等级混凝土高性能化工程应用
5.Smart dynamic concrete-exploration and practice in high-performance of low-grade ordinary concrete(Ⅱ)智能动力混凝土——低强度等级普通混凝土高性能化的探索与实践(二)
6.Research on the Low-strength Pump Concrete with MFA of High AMF Contents;低强度等级泵送高石粉机制砂混凝土的研究
7.Relationship between Concrete Grade of Strength and Concrete Mark of the Former Code混凝土强度等级与原规范混凝土标号的关系
8.Construction Technology of Multi-strength Grade Concrete for High-rise Building高层建筑多强度等级混凝土施工技术
9.Shearing Properties of Low Strength Reinforced Concrete Beams Strengthened with Carbon Fiber Composite Sheets;碳纤维布加固低强度等级混凝土梁抗剪性能研究
10.Application technology and quality control of medium strength self-compacting concrete中等强度等级自密实混凝土的工程应用与质量控制技术研究
11.However, the hydration degree of binder, as well as the adiabatic temperature rise for high strength concrete, will be obviously decreased due to the increase of initial casting temperature.但却会明显降低高强度等级混凝土所用胶凝材料的水化程度,使其绝热温升值下降。
12.The Application of Less Consumption Cement in the High-Strength Concrete低水泥用量在高强度混凝土中的应用
13.RESEARCH ON THE DURABILITY OF THE GRAD ORDINARY STRENGTH ADDING CALCIUM FLY ASH CONCRETE普通强度等级增钙灰混凝土耐久性研究
14.Experimental Research on Bearing Capacity of Different-strength Concrete Beam-column Joints;不同强度等级混凝土梁柱节点承载力实验研究
15.Experimental research on strength decaying of concrete with different grades at elevated temperature不同等级混凝土强度高温衰退性能试验研究
16.Treatment Measures of Different Strength Grade Concrete Frame Beam-Column Joints不同强度等级混凝土框架梁柱节点的处理措施
17.Study of classifying and intensity class for steel fiber in steel fiber-reinforced concrete钢纤维增强混凝土的钢纤维分类和强度等级研究
18.Study of the Concrete Strength of Different Grade and Different Age Tested by Rebound Method回弹法检测不同等级不同龄期的混凝土强度探讨
相关短句/例句
low-strength-concrete beams低强度等级混凝土梁
1.Based on the test studies and the analyses on the six reinforcedlow-strength-concrete beams with plates boned extemally,it is shown that the bonded sted plates can not only ed monolithically with the beams but also incerase the ultimate bearing capacity remarkably when a suitable strengthening design is used.本文通过对６根粘钢加固低强度等级混凝土梁的试验研究及分析表明，只要采用适当的加固方案，粘贴钢板可以与梁共同作用并可显著提高梁的承载能力。
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 theconcrete 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)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,coveringconcrete 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。
5)middle-and-low strength concrete中低强度混凝土
1.Themiddle-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。
6)medium-strength concrete中等强度混凝土
延伸阅读
水泥和混凝土的强度水泥和混凝土的强度strength of eement andConCTete水泥和混凝土的强度Strength or Cement andconcrete水泥和混凝土单位面积上抵抗外力的能力。根据外力施加的方式或方向的不同有各种力学强度:当材料或试件承受轴向拉力时表征为抗拉强度;承受轴向压力时表征为抗压强度;承受垂直于轴线的剪力时表征为抗剪强度;承受弯曲力时表征为抗弯强度或抗折强度。其中抗压强度最高，一般是抗拉强度的10一20倍。抗折强度一方面反映了水泥抵抗弯曲的能力，另一方面也间接地反映了它的抗拉强度。水泥和混凝土的强度在28天前一般增长较快，28天后增长越来越慢。根据这一特点和混凝土施工的要求，将28天强度作为划分水泥标号的主要依据和混凝土使用强度的基准。中国现行标准(GB 175)规定普通硅酸盐水泥有275、325、425、525、625和725共6个标号，425至725还有早强型〔R型)。强度值以MPa为单位。强度是水泥和混凝土的最重要性能。强度检验不但是研究部门和质检单位要做的一项基本试验，而且是水泥厂、制品厂和设计施工单位要做的一项常规试验。强度检验有标准检验和非标准检验。中国水泥强度标准检验方法的发展分为4个阶段:①中华民国时期，没有统一的方法，借用日本、英国、美国和德国的方法。②自1953年，以日本软练法作为全国统一的水泥强度标准检验方法。③自1957年实施硬练法。④自1979年实施新的软练法(GB 177)。软练法采用福建平潭标准砂(GB 178)，粒度为0 .25一0 .65 mm，试体尺寸为40只40X160mm，做抗压和抗折强度检验，灰砂比为1:2.5。GB 177还对水灰比、成型设备、成型室和养护池温度、操作步骤和方法都作了明确规定，以保证结果的复演性和可比性。用软练法测得的强度较真实地反映了水泥质量，对水泥活性的反映较敏感，与混凝土强度的相关性也较好。水泥厂进行生产时，水泥强度标号除达到国家标准规定外，28天抗压强度还应留有一定富余。混凝土强度试验方法常随实际情况而定(GBJ81《普通混凝土力学性能试验方法》)。试体尺寸较大(大于100 X 100 X 100 mm)，测试项目有抗压强度、劈裂抗拉强度和抗折强度等。(席耀忠)
