METHOD FOR CONSTRUCTING NON-INFLAMMABLE SPRAY HEAT INSULATION MATERIAL

To provide a method for constructing a non-inflammable spray heat insulation material which has good initial adhesive strength while securing insufficient incombustibility.SOLUTION: A method for constructing a non-inflammable spray heat insulation material which is sprayed by pressure-sending rock wool and cement-synthetic resin emulsion slurry through different transport pipes on different paths, and joining and mixing them in the middle of pressure-sending, in which a content of the synthetic resin emulsion in the cement-synthetic resin emulsion slurry is 1 mass% or more and 5 mass% or less to the total solid content mass (A) of the non-inflammable spray heat insulation material in terms of a solid content, a content of the cement is 5 mass% or more and 15 mass% or less to (A) in terms of a solid content, and a content of the water is 50 mass% or more and 100 mass% or less to (A) based on the ratio of the solid content.SELECTED DRAWING: Figure 1 【課題】十分な不燃性を確保しつつ、初期付着強度が良好な不燃吹付け断熱材の施工方法の提供。【解決手段】ロックウールとセメント−合成樹脂エマルションスラリーとを別々の輸送管を通して別経路で圧送し、圧送途中で合流混合して吹付ける不燃吹付け断熱材の施工方法であって、セメント−合成樹脂エマルションスラリー中の合成樹脂エマルション含有量が当該不燃吹付け断熱材の全固形分質量（Ａ）に対する固形分換算で１質量％以上５質量％以下、セメント含有量が（Ａ）に対する固形分換算で５質量％以上１５質量％以下、水含有量が（Ａ）に対する対固形分比率で５０質量％以上１００質量％以下であることを特徴とする施工方法。【選択図】図１