Research on the impact echo technique of quantitative detecting the pre-stressed conduct grouting pumpness

DOI

10.2991/iceesd-18.2018.126How to use a DOI?

Keywords

Grouting fullness, method of quantitative detecting, impact echo technique, pre-stressed pipe, bridge engineering

Abstract

The internal prestressed conduct grouting condition is the key problem in prestressed concrete girder bridge throughout the whole service life. Howeverm, there is no set of certain mature and reliable detection technology. This paper based on the impact echo theory, through the precision acquisition of the impact echo time of the prestressed pipe under the condition of different grouting condition levels. By establishing the relationship model between the grouting fullness degree and the reflection time of the impact echo, to provide the quantitative and accurate of measurement of the full degree of prestressed pumpness detection technique, and service for the maintenance and rehabilitation of bridge engineering. Under laboratory conditions, set the measuring line and measuring point, application of impact echo equipment and calculation models for the detection of grouting plumpness of test beams. The drilling results show: the relative error is better than 5% pre-stressed pipeline grouting plumpness measurement, can satisfy the precision of engineering test requirements.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Kechao Zhang
AU  - Wangxin Li
AU  - Guangzhen Ou
AU  - Jun Zhong
AU  - Guangli Zhou
AU  - Jianzhang Chen
PY  - 2018/05
DA  - 2018/05
TI  - Research on the impact echo technique of quantitative detecting the pre-stressed conduct grouting pumpness
BT  - Proceedings of the 2018 7th International Conference on Energy, Environment and Sustainable Development (ICEESD 2018)
PB  - Atlantis Press
SP  - 680
EP  - 686
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceesd-18.2018.126
DO  - 10.2991/iceesd-18.2018.126
ID  - Zhang2018/05
ER  -