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CEMENT COMPOSITION, CONCRETE, CONCRETE-HARDENED BODY, AND CONCRETE STRUCTURE
To provide a cement composition, the hydration reaction of which is progressed rapidly and completed, thereby: preventing a heat of hydration from occurring for a long period of time; and preventing cracks from occurring due to the accumulation of the heat of hydration.SOLUTION: A cement composition comprises a high early strength Portland cement and a limestone fine powder, wherein the content of the limestone fine powder is 20-60 mass%.SELECTED DRAWING: Figure 1
【課題】水和反応の速やかな進行及び反応完結により、長期間に亘る水和熱の発生が抑えられ、水和熱の蓄積に起因するひび割れを防止することが可能な、セメント組成物を提供すること。【解決手段】早強ポルトランドセメントと、石灰石微粉末と、を含有し、石灰石微粉末の含有量が、20〜60質量%である、セメント組成物。【選択図】図1
CEMENT COMPOSITION, CONCRETE, CONCRETE-HARDENED BODY, AND CONCRETE STRUCTURE
To provide a cement composition, the hydration reaction of which is progressed rapidly and completed, thereby: preventing a heat of hydration from occurring for a long period of time; and preventing cracks from occurring due to the accumulation of the heat of hydration.SOLUTION: A cement composition comprises a high early strength Portland cement and a limestone fine powder, wherein the content of the limestone fine powder is 20-60 mass%.SELECTED DRAWING: Figure 1
【課題】水和反応の速やかな進行及び反応完結により、長期間に亘る水和熱の発生が抑えられ、水和熱の蓄積に起因するひび割れを防止することが可能な、セメント組成物を提供すること。【解決手段】早強ポルトランドセメントと、石灰石微粉末と、を含有し、石灰石微粉末の含有量が、20〜60質量%である、セメント組成物。【選択図】図1
CEMENT COMPOSITION, CONCRETE, CONCRETE-HARDENED BODY, AND CONCRETE STRUCTURE
セメント組成物、コンクリート、コンクリート硬化体、及びコンクリート構造物
KOBAYASHI KIYOSHI (author) / SAKAI GORO (author) / TORII TAKESHI (author)
2020-06-18
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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