Shuxin Wang from Canton, MI, age 51

Process For Increasing The Ductility Of High Performance Fiber-Reinforced Brittle Matrix Composites, And Composites Produced Thereby
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US Patent:

7169224, Jan 30, 2007
Filed:

Apr 30, 2004
Appl. No.:

10/836898
Inventors:

Victor C. Li - Ann Arbor MI, US
Shuxin Wang - Ann Arbor MI, US
Assignee:

The Regents of The University of Michigan - Ann Arbor MI
International Classification:

C04B 14/38
US Classification:

106644, 106716, 106718, 106724
Abstract:

Purposeful addition of crack-initiating voids in the form of low tensile strength particulates, particulates having low matrix interaction, or gas bubbles formed by chemical reaction, in a size range of 0. 5 mm to about 5 mm, and preferably of a size commensurate with or larger than naturally occurring crack-initiating gaseous voids, to fiber-reinforced strain hardening cementitious composites generates controlled and uniform cracking which increases strain hardening behavior in conventionally dense cementitious compositions.

High Early Strength Engineered Cementitious Composites
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US Patent:

7799127, Sep 21, 2010
Filed:

Feb 9, 2007
Appl. No.:

11/673263
Inventors:

Victor C. Li - Ann Arbor MI, US
Shuxin Wang - Ann Arbor MI, US
Assignee:

The Regents of the University of Michigan - Ann Arbor MI
International Classification:

C04B 14/38
US Classification:

106644, 106705, 106718, 106724, 106726, 106727, 106733, 106737
Abstract:

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%.

Lightweight Strain Hardening Brittle Matrix Composites
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US Patent:

20050066857, Mar 31, 2005
Filed:

Sep 30, 2003
Appl. No.:

10/674772
Inventors:

Victor Li - Ann Arbor MI, US
Shuxin Wang - Ann Arbor MI, US
Assignee:

The Regents of the University of Michigan - Ann Arbor MI
International Classification:

C04B016/08
C04B020/00
C04B038/00
US Classification:

106672000, 106676000, 106677000, 106802000
Abstract:

Fiber reinforced lightweight concrete composites employ less than 4% by volume of reinforcing fibers in conjunction with small particulate lightweight aggregates or voids, and cure to composites which exhibit high tensile strain and strain hardening behavior. The composites are useful for numerous structures in civil engineering.

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Shuxin Wang