放热速率 meaning in English
heat liberation rate
rate of heat liberation
rate of heat release
Examples
- Based on above , the characteristics of hydration hardening process and microstructure of hsc as well as the interfacial layer between cement paste and coarse aggregate are investigated under low water cement ratio , high content superplasticiser and with one kind or more than one kind of mineral materials condition , the reaction mechanisms of different mineral materials are also discussed
研究了不同水胶比、复合缓凝成分高效减水剂及矿物掺合料的掺加方式、掺量对高强混凝土水泥浆体水化放热过程和水泥浆体的水化热、水化放热速率以及最高温升的影响规律。探明了高强混凝土中水泥浆体的水化硬化过程、矿物掺合料之间的相互作用机理。 - It is indicated that the hydration process of cement - based materials with slag , fly ash and silica fume is different in some degree from that of neat cement because of the difference in mineral structure and hydration mechanism . the periods of accelerating , decelerating and terminating are prolonged and hydration reaction decelerates . the second peak of rate curve of the heat evolution could be divided into two small peaks , which are contributed to the hydration of clinkers and mineral mixtures at the temperature of 30 but when temperature comes to 50 , the two small peaks combine into one and the reaction accelerates
结果表明，与硅酸盐水泥相比，由于矿物掺合料与水泥熟料在活性和水化机理上的差异，水化历程有较大的改变：多组分体系诱导期、加速期和衰减期延长，水化反应速率明显降低；低温时，水化放热速率曲线上的第二放热峰细化成分别对应于熟料和矿物掺合料水化的两个小峰；高温时，反应速率加快，双峰合并；进一步研究发现，掺合料的种类与掺量对水化历程也有较大的影响；建立了适用于多组分水泥基材料不同水化阶段的水化动力学方程。