A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SOIL PAVING MATERIAL
PROBLEM TO BE SOLVED: To provide a fast-curing soil paving material superior in resistance to frost damage, anti-weed effect, and crack resistance with small elution of hexavalent chromium.SOLUTION: A soil paving material is constituted of: (1) a paving material which contains: cement; calcium sulfite having a pH of 9.0 or more, an oxidation-reduction potential (ORP) of 50 mv or less; calcium sulfite having an Mg content of 0.5% to 2.0 in terms of MgO; calcium aluminate having a vitrification rate of 70% or more, a CaO/Al2 O3 molar ratio of 1.0 to 2.7, and impurities of 15% by mass or less; and soil. The soil paving material is (2) the soil paving material of (1) which contains gypsum.SELECTED DRAWING: None
【課題】速硬性で凍害への抵抗性に優れ、かつさらに六価クロム溶出量が少なく、防草効果、ひび割れ抵抗性に優れる土壌舗装材料を提供する。【解決手段】（１）セメントと、ｐＨ９．０以上、酸化還元電位（ＯＲＰ）が５０ｍｖ以下、Ｍｇ含有量がＭｇＯ換算で０．５％〜２．０の亜硫酸カルシウムと、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、土壌とを含有する土壌舗装材料、（２）さらに、石膏を含有する（１）の土壌舗装材料、である。【選択図】 なし
SOIL PAVING MATERIAL
PROBLEM TO BE SOLVED: To provide a fast-curing soil paving material superior in resistance to frost damage, anti-weed effect, and crack resistance with small elution of hexavalent chromium.SOLUTION: A soil paving material is constituted of: (1) a paving material which contains: cement; calcium sulfite having a pH of 9.0 or more, an oxidation-reduction potential (ORP) of 50 mv or less; calcium sulfite having an Mg content of 0.5% to 2.0 in terms of MgO; calcium aluminate having a vitrification rate of 70% or more, a CaO/Al2 O3 molar ratio of 1.0 to 2.7, and impurities of 15% by mass or less; and soil. The soil paving material is (2) the soil paving material of (1) which contains gypsum.SELECTED DRAWING: None
【課題】速硬性で凍害への抵抗性に優れ、かつさらに六価クロム溶出量が少なく、防草効果、ひび割れ抵抗性に優れる土壌舗装材料を提供する。【解決手段】（１）セメントと、ｐＨ９．０以上、酸化還元電位（ＯＲＰ）が５０ｍｖ以下、Ｍｇ含有量がＭｇＯ換算で０．５％〜２．０の亜硫酸カルシウムと、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、土壌とを含有する土壌舗装材料、（２）さらに、石膏を含有する（１）の土壌舗装材料、である。【選択図】 なし
SOIL PAVING MATERIAL
土壌舗装材料
KASAHARA MISATO (author) / TERAJIMA ISAO (author) / SASAKI TAKASHI (author) / MORIOKA MINORU (author)
2018-06-21
Patent
Electronic Resource
Japanese