不同骨料防辐射混凝土屏蔽性能试验  

Different concrete aggregate anti-radiation shielding performance test

作　　者：郭文强[1] 石建军[1] 曾帅[1] 陈炤瑀 宋雪[1] 

机构地区：[1]南华大学,湖南衡阳421001

出　　处：《混凝土》2016年第8期84-86,共3页Concrete

基　　金：湖南省自然科学基金项目(14JJ2083)

摘　　要：为研究不同骨料防辐射混凝土的屏蔽性能以及普通砂石骨料对防辐射混凝土屏蔽性能的影响,选用磁铁矿砂、磁铁矿石、重晶石、重晶石砂、钢珠以及普通河砂和碎石作为骨料,拌制得到四组防辐射混凝土,进行γ射线屏蔽试验。试验结果表明,以磁铁矿砂、钢珠、磁铁矿石作为骨料的防辐射混凝土,屏蔽性能最好;四组防辐射混凝土相互对比,可以发现试验所用的几种骨料当中,钢珠的屏蔽性能最好,磁铁矿和重晶石骨料的屏蔽性能优于普通砂石;在常用屏蔽γ射线的混凝土骨料当中掺入普通河砂和碎石,防辐射混凝土仍然具有良好的屏蔽性能。In order to study the shielding performance of different aggregate anti-radiation concrete and the ordinary sand and gravel aggregate effect the performance of the radiation protection concrete, selects the magnetite sand and magnetite ore,barite,barite ore, steel ball and ordinary river sand and crushed stone as aggregate, mixing get four groups of the radiation protection concrete, gamma ray shield- ing experiment was carried out.The test results show that the magnetic iron sand, steel ball, magnet ore as the radiation protection concrete aggregate, shielding performance is best;Four groups of the radiation protection concrete contrast each other, can be found among several kinds of aggregate used in the experiment, shielding performance of the steel ball is best, magnetite and barite shielding performance is su- perior to the ordinary sand and gravel aggregate; In the concrete aggregate of common shielding gamma-ray mixed with ordinary river sand and gravel, radiation protection still has a Rood shielding performance of concrete.

关 键 词：不同骨料 防辐射混凝土 Γ射线 屏蔽试验 

分 类 号：TU528.041[建筑科学—建筑技术科学]