%0 Journal Article
%T ELECTROMAGNETIC SIGNALS OF CONCRETE SAMPLES DURING FRACTURING UNDER COMPRESSION<br>混凝土样品受压破裂过程中的电磁信号
%A Qian Shuqing
%A Hao Jinqi
%A Deng Mingde
%A Zhou Jianguo
%A Gao Jintian
%A <br>钱书清
%A 郝绵绮
%A 邓明德
%A 周建国
%A 高金田
%J 岩石力学与工程学报
%D 2001
%I 
%X The testing study is made on the electromagnetic phenomena during fracture of concrete and the testing result indicates that some electromagnetic pulse signals occurr accompanying the microfracturing of concrete samples under the axial compression. The pulse signals start at about 80% of the fracture strength of concrete. During this period, the frequency band of the electromagnetic signals is wide and their amplitude is rather large. There is a close correlation of the occurrences between the electromagnetic pulse signals and microcracks before the main fracture of the concrete samples. Hence the electromagnetic method is considered as a hopeful method for the safety monitoring of large-scale constructions.
%K electromagnetic method
%K concrete
%K signals related to microfracturing
%K large-scale projects<br>裂纹信号
%K 混凝土
%K 样品
%K 受压破裂
%K 电磁信号
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=9F20AE7EFB57911E&yid=14E7EF987E4155E6&vid=A04140E723CB732E&iid=B31275AF3241DB2D&sid=97747634025A5F36&eid=FE6645F2371CA43C&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=12&reference_num=22