提出了实际条件下煤体放热强度和耗氧速度的计算方法,并通过实验得出了煤体粒度影响函数。
The calculation method of oxygen consumption rate and heat liberation intensity is put forward on actual condition, and influence function of particle size is gained by experiment.
介绍了高效减水剂对混凝土水化温度升高、放热率及强度影响的试验结果。
Testing results for effects of high range water reducing agent on hydration temperature elevation, heat emission and strength of the concrete were presented.
实际工作中,我们可以应用这个表达式来定量求出放热面积,对树脂固化的最终强度、硬度、收缩等远期性能作超前的定量的比较。
In our practical work, we can apply it to quantify exothermic area. And we can also apply it to compare quantitatively the last intensity, hardness and contraction of resin solidification.
此类林型单位面积释放热量较低,林火火线强度较小,适于采取直接灭火法进行扑救。
Their heats from per fire area were much lower and fire intensity was small, which was suitable to take fire direct extinguishing.
结果表明:掺加激发剂能有效改善大掺量粉煤灰混凝土早期强度低的问题,而且可以在降低水泥水化热的同时,延缓混凝土早期放热峰值的出现,并使混凝土具有良好的抗渗性能。
The results show that the early strength and the permeability of concrete can be improved effectively, and the hydration heat can be reduced and the hot peak value at the early age can be postponed.
此类林型单位面积释放热量较高、林火火线强度较大,适于采取间接灭火法进行扑救。
The heats of per fire area from these types were higher and the fire intensity was greater, which was adopted to take fire indirect extinguishing.
计算结果表明,在弯管小曲率半径壁面附近,由于膨胀稀疏作用,爆轰波强度减弱,在局部出现前导激波与放热反应区的解藕以及二次起爆现象;
From the numerical results it is observed that as the curvature of the bend changes, different detonation phenomena occurred along the wall of the bended pipe.
计算结果表明,在弯管小曲率半径壁面附近,由于膨胀稀疏作用,爆轰波强度减弱,在局部出现前导激波与放热反应区的解藕以及二次起爆现象;
From the numerical results it is observed that as the curvature of the bend changes, different detonation phenomena occurred along the wall of the bended pipe.
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