After the completion of the engineering project, the hope cement hardening, as soon as possible to produce strength, so the finalsettingtime shoulds not be too long.
施工完毕后，希望水泥能尽快硬化，产生强度，所以终凝时间不宜太长。
2
The results show: (1) with high calcium mixing, concrete workability was modified, the water quantity needed for standard consistence decreased, initial and finalsettingtime increased;
结果表明：（1）高钙灰的掺入改善了胶砂的工作性，降低了标准稠度用水量，延缓了胶材的初终凝时间；
3
The initial settingtime of Portland cement shall not be earlier than 45 minutes, final set time not later than 390 minutes.