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WATERPROOF CONSTRUCTION AND METHOD OF MANUFACTURING WATERPROOF CONSTRUCTION
PROBLEM TO BE SOLVED: To provide a waterproof construction using an FRP waterproof sheet having sufficient flexibility even under the environment with comparatively low temperature and having an excellent water-resistant property, and an environment-responsive waterproof construction having excellent followability to a base material.SOLUTION: A waterproof construction provided with an elastic cushioning layer provided on a base material to be an object of waterproofing treatment, a waterproof sheet made of fiber-reinforced plastic containing an unsaturated polyester resin and a fibrous reinforcement material that is provided on the elastic cushioning layer, and a waterproof material layer provided on the waterproof sheet. The content rate of fibrous reinforcement material in the waterproof sheet is 18 to 26 mass%. The unsaturated polyester resin in the waterproof sheet has a structural unit originating from glycol containing ether bonds, and a tensile strength is 10 to 30 MPa and a tensile elastic modulus is 700 MPa or less. The waterproof material layer includes at least one of a styrene non-containing unsaturated polyester resin later and an urethane resin layer having a tensile strength of 10 MPa or more, and a tensile breaking elongation of 400% or less.SELECTED DRAWING: Figure 1
【課題】温度が比較的低い環境下であっても充分な柔軟性を有するとともに耐水性が良好なＦＲＰ防水シートを用いた防水構造で、かつ下地との追随性が良好な環境対応型の防水構造を提供する。【解決手段】防水処理を施す対象となる下地上に設けられた弾性緩衝層と、弾性緩衝層上に設けられた、不飽和ポリエステル樹脂及び繊維状補強材を含有する繊維強化プラスチック製の防水シートと、防水シート上に設けられた防水材層と、を備える防水構造である。防水シート中の繊維状補強材の含有率は１８〜２６質量％である。防水シートにおける不飽和ポリエステル樹脂は、エーテル結合を含むグリコールに由来する構造単位を有するとともに、引張強さが１０〜３０ＭＰａ、かつ引張弾性率が７００ＭＰａ以下である。防水材層は、引張強さが１０ＭＰａ以上、かつ引張破壊伸びが４００％以下である、スチレン非含有不飽和ポリエステル樹脂層及びウレタン樹脂層の少なくとも一方を含む。【選択図】図１
WATERPROOF CONSTRUCTION AND METHOD OF MANUFACTURING WATERPROOF CONSTRUCTION
PROBLEM TO BE SOLVED: To provide a waterproof construction using an FRP waterproof sheet having sufficient flexibility even under the environment with comparatively low temperature and having an excellent water-resistant property, and an environment-responsive waterproof construction having excellent followability to a base material.SOLUTION: A waterproof construction provided with an elastic cushioning layer provided on a base material to be an object of waterproofing treatment, a waterproof sheet made of fiber-reinforced plastic containing an unsaturated polyester resin and a fibrous reinforcement material that is provided on the elastic cushioning layer, and a waterproof material layer provided on the waterproof sheet. The content rate of fibrous reinforcement material in the waterproof sheet is 18 to 26 mass%. The unsaturated polyester resin in the waterproof sheet has a structural unit originating from glycol containing ether bonds, and a tensile strength is 10 to 30 MPa and a tensile elastic modulus is 700 MPa or less. The waterproof material layer includes at least one of a styrene non-containing unsaturated polyester resin later and an urethane resin layer having a tensile strength of 10 MPa or more, and a tensile breaking elongation of 400% or less.SELECTED DRAWING: Figure 1
【課題】温度が比較的低い環境下であっても充分な柔軟性を有するとともに耐水性が良好なＦＲＰ防水シートを用いた防水構造で、かつ下地との追随性が良好な環境対応型の防水構造を提供する。【解決手段】防水処理を施す対象となる下地上に設けられた弾性緩衝層と、弾性緩衝層上に設けられた、不飽和ポリエステル樹脂及び繊維状補強材を含有する繊維強化プラスチック製の防水シートと、防水シート上に設けられた防水材層と、を備える防水構造である。防水シート中の繊維状補強材の含有率は１８〜２６質量％である。防水シートにおける不飽和ポリエステル樹脂は、エーテル結合を含むグリコールに由来する構造単位を有するとともに、引張強さが１０〜３０ＭＰａ、かつ引張弾性率が７００ＭＰａ以下である。防水材層は、引張強さが１０ＭＰａ以上、かつ引張破壊伸びが４００％以下である、スチレン非含有不飽和ポリエステル樹脂層及びウレタン樹脂層の少なくとも一方を含む。【選択図】図１
WATERPROOF CONSTRUCTION AND METHOD OF MANUFACTURING WATERPROOF CONSTRUCTION
防水構造及び防水構造の製造方法
HAYASHI MASATAKA (author) / NOZAWA TOSHIO (author) / FUKUI HIROYUKI (author) / KAWAGUCHI KEITA (author)
2018-05-24
Patent
Electronic Resource
Japanese
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