A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
HYDRAULIC COMPOSITION CONTAINING FURNACE BOTTOM ASH
PROBLEM TO BE SOLVED: To develop a novel stabilization and recycling method for overcoming situation that furnace bottom ash is only for effective utilization as a cement raw material in a cement field.SOLUTION: There is provided a hydraulic composition containing cement clinker, gypsum and furnace bottom ash. A mixed percentage is determined by a value of lightness index L by Hunter Lab measured by a color difference meter under a condition that the furnace bottom ash has a Blaine specific surface area of 3400±300 cm/g. Good appearance is exhibited even with adding by 1 mass% when L value is 41 or more and less than 51 as well as by 5 mass% when L value is 51 or more.SELECTED DRAWING: None
【課題】 炉底灰はセメント分野において、セメント原料としての有効利用のみに留まっており、新たな安定処理・再資源化方法の開発が求められている。【解決手段】 セメントクリンカーと石膏と炉底灰とを含んでなる水硬性組成物。その混合割合は、前記炉底灰がブレーン比表面積３４００±３００ｃｍ２／ｇの状態で、色差計により測定したハンターＬａｂにおける明度指数Ｌの値によって決定するものである。Ｌの値が４１以上５１未満の場合は１質量％まで加えても良好な外観を呈し、Ｌの値が５１以上の場合は５質量％まで加えても良好な外観を呈する。【選択図】 なし
HYDRAULIC COMPOSITION CONTAINING FURNACE BOTTOM ASH
PROBLEM TO BE SOLVED: To develop a novel stabilization and recycling method for overcoming situation that furnace bottom ash is only for effective utilization as a cement raw material in a cement field.SOLUTION: There is provided a hydraulic composition containing cement clinker, gypsum and furnace bottom ash. A mixed percentage is determined by a value of lightness index L by Hunter Lab measured by a color difference meter under a condition that the furnace bottom ash has a Blaine specific surface area of 3400±300 cm/g. Good appearance is exhibited even with adding by 1 mass% when L value is 41 or more and less than 51 as well as by 5 mass% when L value is 51 or more.SELECTED DRAWING: None
【課題】 炉底灰はセメント分野において、セメント原料としての有効利用のみに留まっており、新たな安定処理・再資源化方法の開発が求められている。【解決手段】 セメントクリンカーと石膏と炉底灰とを含んでなる水硬性組成物。その混合割合は、前記炉底灰がブレーン比表面積３４００±３００ｃｍ２／ｇの状態で、色差計により測定したハンターＬａｂにおける明度指数Ｌの値によって決定するものである。Ｌの値が４１以上５１未満の場合は１質量％まで加えても良好な外観を呈し、Ｌの値が５１以上の場合は５質量％まで加えても良好な外観を呈する。【選択図】 なし
HYDRAULIC COMPOSITION CONTAINING FURNACE BOTTOM ASH
炉底灰を含んだ水硬性組成物
OMURA KOHEI (author) / SEKI TAKUYA (author)
2016-06-23
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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