期刊论文

Feasibility of using recycled CRT funnel glass as partial replacement of high density magnetite sand in radiation shielding concrete

Ding, De-xin

英文

中国有色金属学报(英文版)

1003-6326

2019

29

4

831-839

10.1016/S1003-6326(19)64993-9

Project（14JJ2083）supported by the Natural Science Foundation of Hunan Province,China； Project（2015JC3090）supported by the Science and Technology Department of Hunan Province,China；

本校为通讯机构

The recycled cathode ray tube (CRT)funnel glass was used as replacement of magnetite sand in the concrete, and its mass replacement rates were 0, 20%, 40% and 60%, respectively. The flowability, apparent density and mechanical properties of the radiation shielding concrete were investigated, while its γ-ray radiation shielding parameters such as linear and mass attenuation coefficients (μ and μm, respectively), thickness values of half-value layer (hHVL)and tenth-value layer (hTVL)were obtained by theoretical calculation, experiment and Mont...

将回收的阴极射线管(CRT)锥玻璃作为辐射屏蔽混凝土中磁铁矿砂的替代材料,其质量替代率分别为0、20%、40%和60%。研究此防辐射混凝土的流动性、表观密度和力学性能,同时采用实验、理论计算和蒙特卡洛粒子(MCNP)模拟程序等方法研究混凝土γ射线的线性衰减系数(μ),质量衰减系数(μ_m)、半值层厚度(h_(HVL))和十分之一层厚度(h_(TVL))等辐射屏蔽参数。实验结果表明,混凝土的流动性显著提高,而表观密度、抗压强度和静弹性模量均略微下降。在相同的γ射线光子能量条件下,μ_m、μ、h_(HVL)和h_(TVL)等参数的计算、模拟和实验结果吻合较好,这表明用MCNP代码模拟材料的γ射线辐射屏蔽参数是可行的。计...