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公开(公告)号：EP0028513A1
公开(公告)日：1981-05-13
申请号：EP80303874.4
申请日：1980-10-30
IPC分类号： E21C37/00 , C04B7/00 , C04B7/35 , C04B7/34 , C04B1/00 , C09K3/00 , F42D3/00 , F42D3/02 , F42D3/04
摘要： A demolition agent which acts by means of expansive stress generated upon hydration is prepared by calcining limestone at 1300 to 1600°C to produce a hard-burned quick lime whose crystal size is 10 to 100 micron, pulverizing the resulting hard-burned quick lime to 1500 to 5000 cm 2 /g (Blaine), mixing 5 to 70 parts by weight of a hydraulic material to 30 to 95 parts by weight of the hard-burned quick lime and furthermore adding 0.1 to 5 parts by weight of a modifying agent to 100 parts by weight of the mixture of the powdery hard-burned quick lime and the hydraulic material.
The demolition agent is used as an aqueous slurry which is filled into holes of a brittle material to demolish the brittle material by means of expansive stress generated upon hydration.-
公开(公告)号：EP0189584A1
公开(公告)日：1986-08-06
申请号：EP85116404.6
申请日：1985-12-20
IPC分类号： A61C13/00
CPC分类号： A61C13/04 , Y10S264/44
摘要： An elastic tube (4) which may have a plastic wire (5) inserted or a heat-fusible member for defining a charging hole is previously buried in a brittle body (2) in a relation partly exposed at the surface of the brittle body (2), and, after pulling out the elastic tube (4) or fusing the heat-fusible member, an expansive splitting agent is charged into the charging hole and subjected to hydration-expansion to destroy the brittle body (2). In another form, a water-impermeable film enclosing an expansive splitting agent therein is previously buried in a brittle body in a relation partly exposed at the surface of the brittle body, and, after aperturing the exposed end of the water-impermeable film, the expansive splitting agent is subjected to hydration-expansion to destroy the brittle body. Particularly, the brittle body is a dental working cast which can be destroyed to take out a denture therefrom without damaging the denture.
摘要翻译： 可以将插入有塑料线（5）的弹性管（4）或用于限定充电孔的热熔部件预先埋设在脆性体（2）中，部分地暴露在脆性体的表面 2），在拉出弹性管（4）或熔融热熔部件之后，将膨胀分解剂装入充填孔中并进行水合膨胀以破坏脆性体（2）。 在另一种形式中，其中包围其中的膨胀分裂剂的不透水膜预先被埋在脆性体中，部分地暴露在脆性体的表面处，并且在穿透不透水膜的暴露端之后， 膨胀裂解剂进行水合膨胀以破坏脆性体。 特别地，脆性体是可以被破坏以从其中取出义齿而不损坏义齿的牙科工作铸件。
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公开(公告)号：EP0222185B1
公开(公告)日：1989-10-18
申请号：EP86114158.8
申请日：1986-10-13
CPC分类号： C04B41/0009 , E04G23/08 , E21C37/00
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公开(公告)号：EP0189584B1
公开(公告)日：1989-08-16
申请号：EP85116404.6
申请日：1985-12-20
IPC分类号： A61C13/00
CPC分类号： A61C13/04 , Y10S264/44
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公开(公告)号：EP0017398B1
公开(公告)日：1982-12-22
申请号：EP80300873.9
申请日：1980-03-20
发明人： Toshio, Kawano , Ishii, Shiro
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公开(公告)号：EP0222185A1
公开(公告)日：1987-05-20
申请号：EP86114158.8
申请日：1986-10-13
CPC分类号： C04B41/0009 , E04G23/08 , E21C37/00
摘要： An expansive demolition agent prepared by crushing a clinker for manufacturing powdered expansive demolition agent obtained by calcination or sintering, which is capable of hydrating and expanding in a hole drilled in a brittle material to demolish the brittle material, the maximum particle diameter of the agent being one-third or less the diameter of the hole, and containing 10% or less of fine particles having a particle diameter of 0.3 mm or less.
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8.发明公开
公开(公告)号：EP0017398A1
公开(公告)日：1980-10-15
申请号：EP80300873.9
申请日：1980-03-20
发明人： Toshio, Kawano , Ishii, Shiro
摘要： A demolition agent which acts by means of expansive stress generated upon hydration and which is used as a slurry filled into holes of an object to be demolished is obtained by mixing a calcareous material, a siliceous material and gypsum in the molar ratio for CaO/Sio 2 of 5.0 - 14.4 and for CaSO 4 /SiO 2 = 0.13 - 1.19, roasting the mixture under an oxidizing atmosphere to 1350 -1500°C and comminuting the calcined material. The main components of the matter thus obtained are 24 - 65% by weight of 3CaO.SiO 2 crystals, 30 to 60% by weight of CaO crystalline particles and 5 - 17% by weight of CaSO 4 , more than 50% by weight of the CaO crystalline particles being included in the 3CaO.Si0 2 crystals.
摘要翻译： 通过在水合时产生的膨胀应力作用并且被用作填充到被拆除物的孔中的浆料的破坏剂通过以CaO / Sio2的摩尔比混合钙质材料，硅质材料和石膏来获得 为5.0-14.4，对于CaSO 4 / SiO 2为0.13-1.19，在氧化气氛下将混合物焙烧至1350-1500℃并粉碎煅烧的材料。 所得物质的主要成分为：3CaO·SiO 2结晶24-65重量％，CaO结晶粒子30-60重量％，CaSO 4 5-17重量％，CaO 结晶颗粒包含在3CaO.SiO 2晶体中。
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