发明名称 |
Structures and components comprising blast-resistant concrete also suitable for limiting penetration of ballistic fragments |
摘要 |
Concrete structures and components with improved strength and toughness. A uniform mix of first constituents comprises: cement of Blaine fineness of 280-360 m2/kg; sand at a mass ratio of 0.75-1.25 of the cement; silica fume at a mass ratio of 0.15-0.4 of the cement; silica flour at a mass ratio of 0.15-0.3 of the cement; and microinclusions at a mass ratio up to 0.35 of the cement. This is then mixed with a blend of second constituents comprising a specified amount of an HRWRA and an amount of water at a mass ratio of 0.2-0.35 of the cement. This is mixed sufficiently to form a uniform cement-based paste to which an amount of macrofibers at a mass ratio of up to 0.35 of the cement is added to yield a uniform product. Nanoinclusions may be added to improve crack resistance and increase density.
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申请公布号 |
US8016938(B2) |
申请公布日期 |
2011.09.13 |
申请号 |
US20100775873 |
申请日期 |
2010.05.07 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE ARMY |
发明人 |
DURST BARTLEY P.;NEELEY BILLY D.;O'NEIL EDWARD F.;CUMMINS TONEY K. |
分类号 |
C04B7/02 |
主分类号 |
C04B7/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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