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用促凝压蒸法快速推定水泥胶砂28天强度在国内外尚属首创,其特点是试验时间短,设备简单,操作方便,易于推广。本文介绍了以回归式的相关系数、剩余标准差为考核指标,用正交试验优选专用促凝剂剂种、剂量和蒸汽压力、压蒸时间、压蒸仪规格等因素,进行最佳参数的组合,提出了用促凝压蒸技术1.5小时推定水泥胶砂28天强度的试验方法。通过一个试验室用9个厂家11种牌号水泥37组试验,建立
The rapid presumption of strength of cement mortar by procoagulant press-steaming method for 28 days is the first of its kind at home and abroad. It is characterized by short test time, simple equipment, convenient operation and easy promotion. This article introduced the regression coefficient and the residual standard deviation as the evaluation indicators. The optimal parameters were optimized by using the orthogonal test to optimize the factors such as the special accelerator type, dose and steam pressure, pressure and steaming time, and pressure and pressure gauge specifications. In combination, a test method for estimating the strength of cement mortar for 28 days using the procoagulant pressurization technique for 1.5 hours was proposed. Through a lab with 37 sets of 11 brands of cement 9 groups to establish