ANTI-STRIPPING AGENT FOR ASPHALT MIXTURE USING PURIFIED SLOWLY COOLED SLAG, METHOD FOR PRODUCING THE SAME, ASPHALT MIXTURE CONTAINING THE SAME, AND METHOD FOR PRODUCING THE SAME

To provide an anti-stripping agent for asphalt mixture that can improve the moisture resistance of the asphalt mixture, reduce the effects of asphalt aging and plastic deformation, and improve the crack resistance, and can enhance the economic efficiency and process efficiency by recycling by-products, and to provide a method for producing the same, an asphalt mixture containing the same, and a method for producing the same.SOLUTION: An anti-stripping agent for asphalt mixture according to this invention contains purified annealed slag obtained by processing slag generated in an ironmaking and steelmaking process by a specific method, the purified slowly cooled slag may contain 55 to 65% by mass of CaO, 5 to 10% by mass of SiO,1 to 5% by mass AlO, and 1 to 5% by mass of MgO.SELECTED DRAWING: Figure 1A 【課題】アスファルト混合物の水分抵抗性向上、アスファルト老化及び塑性変形低減、及び亀裂抵抗性向上の効果を得ることができ、かつ、副産物のリサイクルにより経済性及び工程効率を高めることができるアスファルト混合物用剥離防止剤、その製造方法、それを含むアスファルト混合物、及びその製造方法の提供。【解決手段】製鉄製鋼工程で発生するスラグを特定方法で加工して得られる精製徐冷スラグを含むアスファルト混合物用剥離防止剤であって、精製徐冷スラグは、ＣａＯ５５〜６５質量％、ＳｉＯ２５〜１０質量％、Ａｌ２Ｏ３１〜５質量％、及びＭｇＯ１〜５質量％を含むことができる。【選択図】図１Ａ