某工程框架柱表層剝落原因及分析及深層次原因-資料下載頁
2025-08-23 05:16本頁面
【正文】 ly release agent, can39。t get down. In a word, the formation of this phenomenon is due to the bination of the above several reasons, the lack of what kind of factors are less likely to appear this kind of circumstance 3, the surface spalling of prevention measures and treatment scheme Commodity concrete in satisfied pumpability, under the premise of workability should strictly control the water cement ratio and dosage of admixture, decrease as far as possible out of the slump, sand rate strictly control the dosage of fly ash. After the construction units in the set a good template, must apply release agent on template, one is to reduce the water absorption, 2 it is mold release smoothly. Before pouring concrete must be sprinkling water on the plate, to strengthen maintenance after casting concrete, the day hot weather to wet curing, need to use plastic film package, prevent concrete surface water loss too fast. Treatment scheme. This happens even though concrete strength to meet the design strength, but due to the surface of the spalling brought negative influence to project construction, need appropriate processing, surface processing floating sand layer to be removed first, and water spraying the whole post, let the concrete surface wet, and then use processing of mortar, ensure that the surface quality of pillars. 4. The conclusion Above is the analysis of a project quality accident and summary, for the spalling of concrete surface layer, we in the process of concrete production and construction to targeted prevention measures, as far as possible to take effective technical measures to prevent the emergence of these problems, ensure the engineering quality.
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