A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
ULTRARAPID HARDENING HYDRAULIC COMPOSITION, CEMENT COMPOSITION, CONCRETE COMPOSITION, AND SPRAYING METHOD
To provide an ultrarapid hardening hydraulic composition that is superior in initial strength development in a short time period (e.g. within one hour) and contributes to reducing a rebound ratio when used as a quick setting agent for spraying concrete.SOLUTION: An ultra-rapid hardening hydraulic composition of this invention includes: a clinker powder that contains a CaO-AlO-SiOcompound containing 40-55 mass% of CaO, 40-55 mass% of AlO, and 1-7 mass% of SiOand has an amorphous degree of 70% or more; and alum and/or silicate, in which the clinker powder satisfies 0.800≤Da/Db<1.000 in a relation between a real density Da after annealed at 1000°C and a real density Db before annealing.SELECTED DRAWING: None
【課題】短時間（例えば、１時間以内）の初期強度発現が良好で、吹付けコンクリートの急結剤として使用した際のリバウンド率低減にも寄与する超速硬性組成物を提供する。【解決手段】質量基準で、ＣａＯが４０〜５５％、Ａｌ２Ｏ３が４０〜５５％、及びＳｉＯ２が１〜７％の範囲にあるＣａＯ−Ａｌ２Ｏ３−ＳｉＯ２系化合物を含み、非晶質度が７０％以上であるクリンカー粉末と、ミョウバン類及び／又はケイ酸塩とを含み、前記クリンカー粉末が、１０００℃で焼きなました後の真密度Ｄａと焼きなます前の真密度Ｄｂとの関係において、０．８００≦Ｄａ／Ｄｂ＜１．０００を満たす、超速硬性組成物である。【選択図】なし
ULTRARAPID HARDENING HYDRAULIC COMPOSITION, CEMENT COMPOSITION, CONCRETE COMPOSITION, AND SPRAYING METHOD
To provide an ultrarapid hardening hydraulic composition that is superior in initial strength development in a short time period (e.g. within one hour) and contributes to reducing a rebound ratio when used as a quick setting agent for spraying concrete.SOLUTION: An ultra-rapid hardening hydraulic composition of this invention includes: a clinker powder that contains a CaO-AlO-SiOcompound containing 40-55 mass% of CaO, 40-55 mass% of AlO, and 1-7 mass% of SiOand has an amorphous degree of 70% or more; and alum and/or silicate, in which the clinker powder satisfies 0.800≤Da/Db<1.000 in a relation between a real density Da after annealed at 1000°C and a real density Db before annealing.SELECTED DRAWING: None
【課題】短時間（例えば、１時間以内）の初期強度発現が良好で、吹付けコンクリートの急結剤として使用した際のリバウンド率低減にも寄与する超速硬性組成物を提供する。【解決手段】質量基準で、ＣａＯが４０〜５５％、Ａｌ２Ｏ３が４０〜５５％、及びＳｉＯ２が１〜７％の範囲にあるＣａＯ−Ａｌ２Ｏ３−ＳｉＯ２系化合物を含み、非晶質度が７０％以上であるクリンカー粉末と、ミョウバン類及び／又はケイ酸塩とを含み、前記クリンカー粉末が、１０００℃で焼きなました後の真密度Ｄａと焼きなます前の真密度Ｄｂとの関係において、０．８００≦Ｄａ／Ｄｂ＜１．０００を満たす、超速硬性組成物である。【選択図】なし
ULTRARAPID HARDENING HYDRAULIC COMPOSITION, CEMENT COMPOSITION, CONCRETE COMPOSITION, AND SPRAYING METHOD
超速硬性組成物、セメント組成物、コンクリート組成物及び吹付け施工方法
MUROKAWA TAKAMITSU (author) / ARAKI AKITOSHI (author) / IWASAKI MASAHIRO (author) / MISHIMA SHUNICHI (author) / ISHII YASUHIRO (author)
2020-04-30
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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