发明名称 |
High Early Strength Engineered Cementitious Composites |
摘要 |
Rapid repair and retrofit of existing infrastructures demand durable high early strength materials that not only deliver sufficient strength within a few hours of placement but also significantly prolong the maintenance interval. The invention comprises a class of newly developed polyvinyl alcohol (PVA) fiber-reinforced high early strength engineered cementitious composites (ECC) materials featuring extraordinary ductility. The tailoring of preexisting flaw size distribution through non-matrix interactive crack initiators in the composite matrix results in high tensile ductility. The resulting high early strength ECC materials are capable of delivering a compressive strength of 21 MPa (3.0 ksi) within 4 hours after placement and retaining long-term tensile strain capacity above 2%.
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申请公布号 |
US2007181040(A1) |
申请公布日期 |
2007.08.09 |
申请号 |
US20070673263 |
申请日期 |
2007.02.09 |
申请人 |
THE REGENTS OF THE UNIVERSITY OF MICHIGAN |
发明人 |
LI VICTOR C.;WANG SHUXIN |
分类号 |
C04B28/00;C04B18/06;C04B24/00 |
主分类号 |
C04B28/00 |
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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