- 摘 要
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（1 江蘇建筑科學研究院有限公司， 南京 210008； 2 江蘇省建筑工程質(zhì)量檢測中心有限公司， 南京 210028； 3 昆山市建設工程質(zhì)量檢測中心， 昆山 215337）
［摘要］針對目前裝配式混凝土結構的漿錨搭接灌漿飽滿度缺乏有效的無損檢測技術，研究了基于沖擊回波的無損檢測方法測試單筋和鋼筋集中束漿錨連接節(jié)點灌漿飽滿度。介紹了掃描式?jīng)_擊回波法檢測混凝土結構缺陷的原理及方法。詳細闡述了采用掃描式?jīng)_擊回波法檢測設有大、小直徑波紋管試件及實際工程中裝配式剪力墻波紋管漿錨搭接節(jié)點的測試結果,且總體測試結果良好；通過對沖擊回波頻譜圖、名義厚度的分析，得出掃描式?jīng)_擊回波法可較準確地判斷金屬波紋管內(nèi)灌漿的飽滿度的結論。
［關鍵詞］掃描式?jīng)_擊回波法； 漿錨搭接； 波紋管； 灌漿飽滿度； 無損檢測； 裝配式建筑
中圖分類號：TU375文獻標識碼：A文章編號：1002-848X(2018)23-0022-06
Experimental study on testing grouting quality of grouted and splicing joints in precast concrete structure using impact-echo method
Jiang Yu1,2, Sun Zhenghua 1,2, Wei Xiaobin1,2, Zhang Runtao1,2, Gu Sheng3
(1 Jiangsu Research Institute of Building Science Co.， Ltd., Nanjing 210008, China; 2 Jiangsu Testing Center for Quality of Construction Engineering Co.， Ltd.， Nanjing 210028, China; 3 Kunshan Construct Engineering Quality Testing Center, Kunshan 215337, China)
Abstract:In view of the lack of effective non-destructive testing technology for grouting quality of grouted and splicing joints in precast concrete structures at present, the non-destructive testing method based on impact-echo method was used to test the grouting quality of grouted and splicing joints with single reinforcement or reinforcement concentrating bundle. The principle and method of scanning impact-echo method for detecting concrete structural defects were introduced. The test results of detecting the large and small diameter corrugated pipe specimens and the assembled shear wall corrugated pipe anchor joints in the actual project by scanning impact-echo method were described in detail. The overall test results are good. Through the analysis of the spectrogram and the nominal thickness, it is concluded that the scanning impact-echo method can accurately judge the quality of grouting in the metal corrugated pipes.
Keywords:scanning impact-echo method; grouted and splicing joints; corrugated pipe; grouting quality; non-destructive test; precast building
*國家重點研發(fā)計劃項目（2016YFC0701800）,江蘇省“六大人才高峰”高層次人才選拔培養(yǎng)資助（2016-JZ-045），江蘇省自然科學基金面上項目（BK20171497）。
作者簡介：蔣俁，碩士，助理工程師，Email: xavilt0603@foxmail.com。
