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SULFURIC ACID RESISTANT CEMENT HARDENED BODY AND PRODUCTION METHOD THEREOF
PROBLEM TO BE SOLVED: To provide a sulfuric acid-resistant cement hardened body mainly composed of a blast furnace slag powder, making it possible to produce, in a short period of time, a dense hardened body having the characteristics of salt damage resistance and acid resistance.SOLUTION: Provided is a sulfuric acid resistant cement hardened body made of a multilayer structure constructed by internal concrete 15 containing a coarse aggregate 11, and a reaction protective layer 16 formed only of a mortar component that transforms, when reacting with sulfuric acid, into a barrier layer 17 made of gypsum dihydrate, on the surface layer of the internal concrete 15.SELECTED DRAWING: Figure 2
【課題】耐塩害性、耐酸性の特性を有する密実な硬化体を短時間に製造できる、高炉スラグ粉末を主体とした耐硫酸セメント硬化体を提供すること。【解決手段】粗骨材１１を含む内部コンクリート１５と、内部コンクリート１５の表層に、硫酸と反応すると二水石膏製のバリア層１７に変質するモルタル成分のみで形成した反応保護層１６とによる多層構造とした。【選択図】図２
SULFURIC ACID RESISTANT CEMENT HARDENED BODY AND PRODUCTION METHOD THEREOF
PROBLEM TO BE SOLVED: To provide a sulfuric acid-resistant cement hardened body mainly composed of a blast furnace slag powder, making it possible to produce, in a short period of time, a dense hardened body having the characteristics of salt damage resistance and acid resistance.SOLUTION: Provided is a sulfuric acid resistant cement hardened body made of a multilayer structure constructed by internal concrete 15 containing a coarse aggregate 11, and a reaction protective layer 16 formed only of a mortar component that transforms, when reacting with sulfuric acid, into a barrier layer 17 made of gypsum dihydrate, on the surface layer of the internal concrete 15.SELECTED DRAWING: Figure 2
【課題】耐塩害性、耐酸性の特性を有する密実な硬化体を短時間に製造できる、高炉スラグ粉末を主体とした耐硫酸セメント硬化体を提供すること。【解決手段】粗骨材１１を含む内部コンクリート１５と、内部コンクリート１５の表層に、硫酸と反応すると二水石膏製のバリア層１７に変質するモルタル成分のみで形成した反応保護層１６とによる多層構造とした。【選択図】図２
SULFURIC ACID RESISTANT CEMENT HARDENED BODY AND PRODUCTION METHOD THEREOF
耐硫酸セメント硬化体及びその製造方法
ISHIDA KOTARO (author) / OMORI KIYOTAKE (author)
2016-12-08
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2017
CEMENT HARDENED BODY PRODUCTION METHOD AND CEMENT HARDENED BODY
| European Patent Office | 2024