A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SOIL PAVEMENT MATERIAL
PROBLEM TO BE SOLVED: To provide a soil pavement material having quick curability, excellent in resistance to freezing damage and excellent in weedproofness for overcoming problems with a conventional cement solidifying agent (curing agent), a magnesia solidifying agent and further a solidifying agent using calcium aluminate slag that curing time is long and it receives freezing damage at low temperature, that shrinkage amount is large and cracking is generated, and that weedproof effect is low.SOLUTION: There are provided (1) a soil pavement material containing calcium aluminate having vitrification rate of 70% or more, CaO/AlOmolar ratio of 1.0 to 2.7 and impurities of 15 mass% or less, gypsum, a water repellent and a soil, (2) a soil pavement material according to (1), further containing cement.SELECTED DRAWING: None
【課題】従来のセメント系固化剤（硬化剤）やマグネシア系固化剤、さらにカルシウムアルミネート系スラグを用いた固化剤は、硬化時間が長く、低温時に凍害を受けるという課題、収縮量が大きくひび割れが生じるという課題、並びに、防草効果が低いという課題があった。本発明は、速硬性で凍害への抵抗性に優れ、かつ、防草性に優れた土壌舗装材料を提供する。【解決手段】（１）ガラス化率が７０％以上、ＣａＯ／Ａｌ２Ｏ３モル比が１．０〜２．７、不純物が１５質量％以下であるカルシウムアルミネートと、石膏と、撥水剤と、土壌とを含有する土壌舗装材料、（２）さらに、セメントを含有する（１）の土壌舗装材料である。【選択図】 なし
SOIL PAVEMENT MATERIAL
PROBLEM TO BE SOLVED: To provide a soil pavement material having quick curability, excellent in resistance to freezing damage and excellent in weedproofness for overcoming problems with a conventional cement solidifying agent (curing agent), a magnesia solidifying agent and further a solidifying agent using calcium aluminate slag that curing time is long and it receives freezing damage at low temperature, that shrinkage amount is large and cracking is generated, and that weedproof effect is low.SOLUTION: There are provided (1) a soil pavement material containing calcium aluminate having vitrification rate of 70% or more, CaO/AlOmolar ratio of 1.0 to 2.7 and impurities of 15 mass% or less, gypsum, a water repellent and a soil, (2) a soil pavement material according to (1), further containing cement.SELECTED DRAWING: None
【課題】従来のセメント系固化剤（硬化剤）やマグネシア系固化剤、さらにカルシウムアルミネート系スラグを用いた固化剤は、硬化時間が長く、低温時に凍害を受けるという課題、収縮量が大きくひび割れが生じるという課題、並びに、防草効果が低いという課題があった。本発明は、速硬性で凍害への抵抗性に優れ、かつ、防草性に優れた土壌舗装材料を提供する。【解決手段】（１）ガラス化率が７０％以上、ＣａＯ／Ａｌ２Ｏ３モル比が１．０〜２．７、不純物が１５質量％以下であるカルシウムアルミネートと、石膏と、撥水剤と、土壌とを含有する土壌舗装材料、（２）さらに、セメントを含有する（１）の土壌舗装材料である。【選択図】 なし
SOIL PAVEMENT MATERIAL
土壌舗装材料
KASAHARA MISATO (author) / SASAKI TAKASHI (author) / TERAJIMA ISAO (author) / MORIOKA MINORU (author)
2018-07-19
Patent
Electronic Resource
Japanese