Concrete construction method for extreme cold area in low temperature season

A technology for alpine regions and concrete, applied in water conservancy projects, hydroelectric power stations, buildings, etc., can solve the problems of long construction period and other problems, and achieve the effect of wide geographical scope and industry scope, strong operability, and easy supply.
CN101319494AInactive Publication Date: 2008-12-10中国安能建设集团有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
中国安能建设集团有限公司
Publication Date
2008-12-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a concrete construction method for high-cold areas in low temperature seasons. In the construction method, a whole set of construction standards and specifications for the selection of raw materials, the mixture ratio design of concrete, concrete position, heat preservation during transportation, concrete mixture and pouring, temperature monitoring, concrete maintenance after pouring and other aspects is formulated, so the method solves problems caused by the conventional concrete construction of hydropower projects in high-cold areas and low temperature seasons.
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Description

technical field

[0001] The invention relates to a concrete construction method for hydropower projects, in particular to a concrete construction method for hydropower projects in low temperature seasons. Background technique

[0002] The quality of concrete is an important part of the quality of construction projects. The durability of concrete is an important determinant of the life of concrete engineering structures. The concrete surface damaged by freezing and thawing will expand and shrink, disintegrate, weather and erode. After a long time, the overall concrete structure may be seriously damaged. Some projects cannot operate normally because the concrete structure is damaged by freezing and thawing.

[0003] In high-altitude cold regions such as Tibet and Qinghai, the daily average temperature is low and the temperature difference between day and night is very large. It is basically in winter from November to March of the next year, and the low temperature season last...

Claims

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