扩展度 meaning in English
degree of expansion
Examples
- Workability - design of fresh concrete was studied from rheology aspect . mortar slump flow test was further developed to evaluate properties of water - reducers and compatibility between cement and water - reducer for mortar . a method for measuring water absorbed by coarse aggregate in fresh concrete was put forward
从流变学角度对新拌混凝土工作性进行了以下研究：进一步完善了砂浆坍落扩展度试验方法，用于测评砂浆中减水剂饱和掺量及水泥对外加剂的适应性。 - Measures for further developing concrete mix design were presented based on above work . for example , adopts pfca as an index in designing durability of concrete , uses mortar slump flow test to select cements and water - reducers and to measure saturation dosage of water - reducer in mortar and then determine optimum dosage of it in concrete , uses bar - slump test to determine stability and fluidity of fresh concrete , and consequently , the workability of high fluidity and high stability concrete such as pumped or self - compacting concrete can be designed by adopting proper cfvm determined in terms of rheological properties of designed mortar measured with cone - based rheometer
如采用粗集料破碎率作为耐久性设计的一个指标；采用砂浆坍落扩展度试验选择水泥和减水剂，确定砂浆中减水剂的饱和掺量，并通过上述数学模计算混凝土中减水剂的饱和掺量，以此为参照确定最佳掺量；采用障碍坍落度试验确混凝土的稳定性和流动性，结合由漏斗式砂浆流变仪测定的砂浆流变性能确定合理的砂浆填充系数，从而实现对高流动性高稳定性要求的混凝土(如泵送和免振自密实等)的工作性设计。 - Under the direction of such theories , the influence of the composition of the concrete to the workability , mechanical property and durability of hplc is analyzed systematically ; the key technology of the preparation of hplc was grasped . the theory of strength improvement of subsidiary bonder is detected , special additive - fdl for hplc is made , lc40 - lc60 hplc with the slump over 18cm , the slump flow over 50cm , segregation degree below 5 % , small drying shrinkage , high tension strength and long durability is prepared . the concept and experimental method of the segregation degree of the mixture is put out and the analytical system of high performance hplc is built
以设计理念和设计理论为指导，系统研究了轻集料、辅助胶凝材料等组分及其配比参数对轻集料混凝土工作性能、力学性能和耐久性能的影响规律，探明了辅助胶凝材料对于轻集料混凝土的增强机理，研制出能够有效控制轻集料混凝土拌和物分层离析度和降低坍落度经时损失的专用外加剂fdl ，掌握了制备高性能轻集料混凝土的关键技术，制备出坍落度大于18cm 、扩展度大于50cm 、分层度小于5 、低干缩、高韧性、高耐久的lc40 lc60高性能轻集料混凝土。 - The slump and slump flow of fresh concrete are measured and the compressive strength of hardened concrete are tested . then , the effect of the factors ( the w / c ratio , sand content by mass of aggregate , the percentage of silica fume and slag ) on the self - compacting capability of the mass is analysed . and then , the optimum value of every effect factors is acquired according to the comprehensive - equilibration theory
在本文的前半部分，作者采用正交试验方案，以新拌混凝土的坍落度和扩展度为考核指标进行试验，分析了w c 、砂率、 sf掺量及sl掺量对拌合物自密实性的影响，并根据综合平衡法，得出本文所采用的原材料体系中各因素的最佳取值范围。 - Using the sintered fly ash lightweight aggregate , the experiment has successfully compounded lightweight aggregate concrete with properties of compressive strength more than cl60 , 0 minute slump more than 20cm , expansibility more than 50cm and 60 minute slump no less than 18cm . the result indicates that this lightweight aggregate concrete can be applied widely
利用所制粉煤灰轻集料，实验配制出了抗压强度高达cl60 ，初始坍落度大于20cm ，扩展度大于50cm ， 60min坍落度不小于18cm的轻集料混凝土，该混凝土预示了广阔的工程应用前景。