A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PROBLEM TO BE SOLVED: To provide a spray mortar having excellent quick-setting property and strength development property and capable of sufficiently suppressing the generation of dust at the time of spraying so as to have good workability without using a thickener even if a powder quick-setting admixture is used.SOLUTION: The spray mortar comprises a premixed mortal containing 100 parts by mass of ecocement, 3.4 to 10.5 parts by mass of anhydrous gypsum, 4.8 to 12.2 parts by mass of amorphous calcium aluminate having 1.9 to 2.8 of molar ratio of the content of CaO and AlOas a chemical component (CaO/AlO), 0.12 to 0.28 parts by mass of sodium aluminate, 0.2 to 0.5 parts by mass of alkali metal carbonate and 100 to 350 parts by mass of fine aggregate, and water.SELECTED DRAWING: None
【課題】 粉体急結剤を使用しても増粘剤を使用することなく吹付施工時の粉塵発生が十分抑制できて施工性が良好な、高い急結性と高い強度発現性を備えた吹付モルタルを提供する。【解決手段】 エコセメント１００質量部、無水石膏３．４〜１０．５質量部、化学成分としてのＣａＯとＡｌ2Ｏ3の含有モル比（ＣａＯ／Ａｌ2Ｏ3）が１．９〜２．８である非晶質カルシウムアルミネート４．８〜１２．２質量部、アルミン酸ナトリウム０．１２〜０．２８質量部、アルカリ金属炭酸塩０．２〜０．５質量部および細骨材１００〜３５０質量部を含むプレミックスモルタルと水からなる吹付モルタル。【選択図】 なし
PROBLEM TO BE SOLVED: To provide a spray mortar having excellent quick-setting property and strength development property and capable of sufficiently suppressing the generation of dust at the time of spraying so as to have good workability without using a thickener even if a powder quick-setting admixture is used.SOLUTION: The spray mortar comprises a premixed mortal containing 100 parts by mass of ecocement, 3.4 to 10.5 parts by mass of anhydrous gypsum, 4.8 to 12.2 parts by mass of amorphous calcium aluminate having 1.9 to 2.8 of molar ratio of the content of CaO and AlOas a chemical component (CaO/AlO), 0.12 to 0.28 parts by mass of sodium aluminate, 0.2 to 0.5 parts by mass of alkali metal carbonate and 100 to 350 parts by mass of fine aggregate, and water.SELECTED DRAWING: None
【課題】 粉体急結剤を使用しても増粘剤を使用することなく吹付施工時の粉塵発生が十分抑制できて施工性が良好な、高い急結性と高い強度発現性を備えた吹付モルタルを提供する。【解決手段】 エコセメント１００質量部、無水石膏３．４〜１０．５質量部、化学成分としてのＣａＯとＡｌ2Ｏ3の含有モル比（ＣａＯ／Ａｌ2Ｏ3）が１．９〜２．８である非晶質カルシウムアルミネート４．８〜１２．２質量部、アルミン酸ナトリウム０．１２〜０．２８質量部、アルカリ金属炭酸塩０．２〜０．５質量部および細骨材１００〜３５０質量部を含むプレミックスモルタルと水からなる吹付モルタル。【選択図】 なし
SPRAY MORTAR
吹付モルタル
HANEI YOSHIHISA (author)
2018-08-30
Patent
Electronic Resource
Japanese