Deterioration prevention constructing method for concrete
专利汇可以提供Deterioration prevention constructing method for concrete专利检索，专利查询，专利分析的服务。并且PURPOSE: To prevent hardened concrete from being deteriorated due to alkali aggregate reaction, by retaining a water-soluble or water-insoluble lithium compound near the underground concrete surface adjacent to concrete.
CONSTITUTION: Near the surface of underground concrete 5 adjacent to the concrete of a concrete structure 1 set with a part exposed to the air and with one part at least on another part in contact with ground, the lithium compound of a lithium hydroxide or the like is retained in ground. Then, under the existence of high alkali, a lithium ion and a reactive aggregate react to each other, and on the surface of the aggregate, non-reactive covering substance 4 generating no alkali aggregate reaction is produced. Thereby, even if an aggregate used in blending the concrete is of generating the alkali aggregate reaction, the aggregate can be used without the need of the removal thereof and by means of the execution of simple work, hardened concrete can be prevented from being deteriorated.
COPYRIGHT: (C)1988,JPO&Japio，下面是Deterioration prevention constructing method for concrete专利的具体信息内容。
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