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A platform for research: civil engineering, architecture and urbanism
BUBBLE REMOVAL METHOD AT THE TIME OF CONCRETE PLACEMENT
To remove air bubbles generated on the mold surface reliably even if the mold surface is an inclined surface facing obliquely downward, to improve the strength and compactness of concrete surface, to shorten the work period, and to reduce cost.SOLUTION: Before concrete placement, the longitudinal middle portion 2202 of the elongated member 22 is disposed over the entire length in the extension direction of the range where the air bubbles of the mold surface 1602 are to be removed at the lower end 1604 of the mold surface 1602, and after placing the concrete, at least one of the end portions of the side portions 2204 of the elongated member 22 is pulled up by work in the upper space of the concrete form 16, thereby the longitudinal middle portion 2202 of the elongated member 22 is moved along the inclined surface 1602A to remove air bubbles which tend to stay on the inclined surface 1602A.SELECTED DRAWING: Figure 2
【課題】型枠面が斜め下方を向いた傾斜面である場合であっても、型枠面に生じた気泡を確実に除去し、コンクリート表面の強度や緻密性を向上させるとともに、工期の短縮化、コストダウンを図る。【解決手段】コンクリート打設前に、型枠面１６０２の下端１６０４で型枠面１６０２の気泡を除去すべき範囲の延在方向の全長にわたって細長状部材２２の長手方向の中間部２２０２を配置しておき、コンクリート打設後、コンクリート型枠１６の上方スペースにおける作業により細長状部材２２の両側部２２０４の端部のうちの少なくとも一方を引き上げることで、細長状部材２２の長手方向の中間部２２０２を傾斜面１６０２Ａに沿って移動させ、傾斜面１６０２Ａに滞留しがちな気泡を除去するようにした。【選択図】図２
BUBBLE REMOVAL METHOD AT THE TIME OF CONCRETE PLACEMENT
To remove air bubbles generated on the mold surface reliably even if the mold surface is an inclined surface facing obliquely downward, to improve the strength and compactness of concrete surface, to shorten the work period, and to reduce cost.SOLUTION: Before concrete placement, the longitudinal middle portion 2202 of the elongated member 22 is disposed over the entire length in the extension direction of the range where the air bubbles of the mold surface 1602 are to be removed at the lower end 1604 of the mold surface 1602, and after placing the concrete, at least one of the end portions of the side portions 2204 of the elongated member 22 is pulled up by work in the upper space of the concrete form 16, thereby the longitudinal middle portion 2202 of the elongated member 22 is moved along the inclined surface 1602A to remove air bubbles which tend to stay on the inclined surface 1602A.SELECTED DRAWING: Figure 2
【課題】型枠面が斜め下方を向いた傾斜面である場合であっても、型枠面に生じた気泡を確実に除去し、コンクリート表面の強度や緻密性を向上させるとともに、工期の短縮化、コストダウンを図る。【解決手段】コンクリート打設前に、型枠面１６０２の下端１６０４で型枠面１６０２の気泡を除去すべき範囲の延在方向の全長にわたって細長状部材２２の長手方向の中間部２２０２を配置しておき、コンクリート打設後、コンクリート型枠１６の上方スペースにおける作業により細長状部材２２の両側部２２０４の端部のうちの少なくとも一方を引き上げることで、細長状部材２２の長手方向の中間部２２０２を傾斜面１６０２Ａに沿って移動させ、傾斜面１６０２Ａに滞留しがちな気泡を除去するようにした。【選択図】図２
BUBBLE REMOVAL METHOD AT THE TIME OF CONCRETE PLACEMENT
コンクリート打設時における気泡除去方法
MIKOCHI NAGAYASU (author) / FUJIKURA YUSUKE (author) / IDE KAZUO (author)
2019-03-22
Patent
Electronic Resource
Japanese
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