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Enhance the retaining wall and the tunnel concrete surface layer
- Categories:New Engineering
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- Time of issue:2021-11-26 15:13
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(Summary description)Main use of Jiagushi: Concrete surface reinforcement<br> Project address: Liupanshui Liuzhi special zone<br> Construction time:2017.04
Enhance the retaining wall and the tunnel concrete surface layer
(Summary description)Main use of Jiagushi: Concrete surface reinforcement<br>
Project address: Liupanshui Liuzhi special zone<br>
Construction time:2017.04
- Categories:New Engineering
- Author:
- Origin:
- Time of issue:2021-11-26 15:13
- Views:
Project Overview:
China railway bridge bureau group co., LTD., is a wholly-owned subsidiary of China railway co., LTD., formerly in April 1953 to build wuhan Yangtze river bridge by government administration approved the ministry of railway bridge engineering bureau (2001 to the present name), is the only set of bridge scientific research, survey and design, construction, machinery manufacturing in a large engineering company, in various kinds of river, river, lake, sea and various types of Bridges under harsh geological and environmental conditions.In order to improve the tightness of the concrete and enhance the strength of the China Railway Bridge Bureau in Liuzhi Special Zone of Liupanshui, the surface layer of the retaining wall and the tunnel concrete is enhanced by spraying a good solid concrete.
construction procedure:
First time sprinkling wetting base surface first time (150ml / m2) second time sprinkling second time (100ml / m2) third time sprinkling wet maintenance for 3 days
Effect evaluation:
The rebound strength of the concrete increased by 3MPa in 7 days, about 4 MPa in 14 days, and about 6 MPa in 28 days.
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