混凝土拌和物 meaning in Chinese
concrete mix
mixture
Examples
- And compared with ordinary concrete , high performance concrete adding fly ash shows better workability . but there is an optimum mixing dosage of fly ash for crack resistance of concrete
与普通混凝土相比，掺入粉煤灰可以改善混凝土拌和物的和易性，但粉煤灰对于混凝土的抗裂性存在一个最优的掺量。 - As commercial concrete is arisen , people pay much attention to make concrete fluidized ; and it ' s to say the concrete must keep a high slump after long - playing transportation and halt
随着商品混凝土的兴起，混凝土正向流态化的方向发展，要求混凝土拌和物在经过较长时间的运输和停放后仍能维持较高的坍落度。 - In addition , vibration has great effects on uniformity of high fluid structural lightweight aggregate concrete . there is obvious separation of lightweight aggregate from mortar in mixture of high fluid structural lightweight aggregate concrete with slump of 220mm when vibrated for 10 minutes
此外，振动对大流动性轻集料混凝土的匀质性十分不利，对坍落度220mm左右的轻集料混凝土拌和物，振动时间超过10秒，就会出现明显的分层现象。 - We research the causes of concrete cracking , develop the high performance anti - cracking additive , optimize the concrete mix and construction techniques , increase the stability of concrete volume by shrinkage compensation , enhance splitting tensile strength , and can meet demand of high workability of fresh concrete . . in the study , a thorough investigation of this problem is made from all points of view , with the aid of various modern measurement & testing technology and different theories & methods in surface physical chemistry , structural chemistry , solid - state chemistry , composite materials , fracture mechanics , etc . our research results have shown that the various shrinkage of concrete cause concrete cracking in building engineering , such as autogenous shrinkage , dry shrinkage , temperature shrinkage , plastic shrinkage , carbonized shrinkage , etc
目前，解决混凝土开裂的方法是综合的，我们调查研究了混凝土开裂的原因，开发研制了高性能抗裂外加剂，优化混凝土的设计和施工方法，并通过补偿收缩达到混凝土体积稳定，提高抗裂强度，满足混凝土拌和物高工作性能的要求。本研究采用多种测试技术，应用表面物理化学、结构化学、固体化学、复合材料学、断裂力学等多学科的理论与方法，从不同的角度进行深入的研究和探讨。通过调查研究建筑工程中出现的混凝土开裂、渗漏问题，发现混凝土在非荷载作用下开裂主要是由混凝土的自收缩、干燥收缩、温度收缩、塑性收缩、碳化收缩等各种收缩变形引起的。 - 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。