Cracking Mechanism of RCC Dam Surface and Prevention Method

Abstract:

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Using low placement temperature and proper water pipe cooling water, the cracks are rarely appears in the interior of the dam, but the surface of the dam is prone to cracking. During the construction, the surface of the dam may be wet due to several factors such as creep, maintenance and so on, so the effect of the heat preservation is always been over-estimated. For those concrete blocks constructed in cold season, without proper heat preservation, the cracks are easy to appear soon after construction. For those concrete blocks constructed in hot period, under the influence of air temperature, the temperature of those concrete within about 5.0m of the dam surface are hard to control. So the key point to prevent the dam surface constructed in cold period is to take heat preservation measure suiting the on-the-spot situation. And for those dam blocks constructed in hot period, water cure on the surface of the dam can greatly reduce the risk of dam surface cracking.

Info:

Periodical:

Advanced Materials Research (Volumes 295-297)

Edited by:

Pengcheng Wang, Liqun Ai, Yungang Li, Xiaoming Sang and Jinglong Bu

Pages:

2092-2096

DOI:

10.4028/www.scientific.net/AMR.295-297.2092

Citation:

Z. Y. Zhu et al., "Cracking Mechanism of RCC Dam Surface and Prevention Method", Advanced Materials Research, Vols. 295-297, pp. 2092-2096, 2011

Online since:

July 2011

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Price:

$35.00

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