An Experimental Study on the Rebound Degree Tendency of Linear Hitting Test Hammer

Title & Authors
An Experimental Study on the Rebound Degree Tendency of Linear Hitting Test Hammer
Ahn Hyo-Soo; Seo Chee-Ho;

Abstract
Recently, as the remodeling market gradually substitute for new construction market and safety diagnosis for reconstruction apartment become a matter of principal Interest, it is demanded that scientific diagnosis and evaluation for existing concrete structure state. And it is increasing that the significance for reliability of data which is used for estimating the concrete compressive strength by nondestructive test. As a result, it is found that different proposal to material age and hitting angle is good to improving the reliability of presumption of concrete compressive strength in the linear hitting rebound test hammer. And for the reason that mutual relation between the compressive strength and rebound degree is highest in linear hitting rebound test hammer 25mm in all portion according to early md middle material age and hitting angle except the early material age $\small{-45^{\circ}}$, analysis showed that linear hitting rebound test hammer is more reliable than existing schmidt hammer in presumption of concrete compressive strength.
Keywords
nondestructive test;rebound test hammer;linear hitting;presumption;schmidt hammer;
Language
Korean
Cited by
References
1.
권영웅,'콘크리트의 표면경도 시험법', 콘크리트학회지,10권 2호(통권44호),1998, p21

2.
안형준,콘크리트 구조물의 안전진단,구미서관,1999

3.
유택동 외,건축재료실험교재,공간예술사,2001

4.
전명훈 외,'콘크리트 비파괴시험',주택기술정보,77호,1997,p9

5.
한국콘크리트학회 편,콘크리트 구조물의 비파괴검사 및 안전진단,기문당,2001

6.
(社)日本非破壞檢査協議會編,ユンクリ―ト構造物の非破 壞檢査,オム社,1996

7.
이종득 감수,콘크리트 구조물 비파괴진단,도서출판 일광,2002

8.
이차돈 외,'반발도법에 의한 콘크리트 내력평가',한국 구조물진단학회지,Vol.3,No.1,1999,p6

9.
(社)日本ユンクリ―ト工學協會,ユンクリ―トの非破壞試 驗法硏究委員會報告書,1992

10.
장석환,실험계획과 응용,교우사,2002

11.