Ziehl
Martin Ziehl, Hovelhof DE
Patent application number | Description | Published |
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20090008932 | FLANGE CONNECTION FOR PIPE - Assembly for connecting a pipe having a flanged end in fluid communication with an opposing part. The assembly includes an insert received coaxially within the pipe end and having a forward end face extending axially beyond the pipe end, a clamp ring received coaxially over the pipe end, and a flange piece which is fastenable to the opposing as received coaxially over the clamp ring. As the flange piece is fastened to the opposing part, the forward end face of the insert is urged into a sealable engagement against a confronting surface of the opposing part. | 01-08-2009 |
Paul Ziehl, Irmo, SC US
Patent application number | Description | Published |
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20130324674 | Polymeric Additive for Strength, Deformability, and Toughness Enhancement of Cemetitious Materials and Composites - Methods are generally provided for forming a polymer-cement composite. In one embodiment of the method, a plurality of dopamine monomers is dispersed in a buffer solution. Polymerization of the dopamine monomers can then be initiated, and a cement-sand mixture can be added to the buffer solution to form a composite mixture. Finally, the composite mixture can be cured to form a polymer-cement composite. Polymer-cement composites are also generally provided that, in one embodiment, include cement, sand, and poly(dopamine), with the polymer-cement composite having a compressive strength of 8000 psi. | 12-05-2013 |
Paul Henry Ziehl, Irmo, SC US
Patent application number | Description | Published |
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20150338380 | Assessing Corrosion Damage in Post-Tensioned Concrete Structures Using Acoustic Emission - Methods are provided for detecting damage in a post-tensioned concrete specimen due to corrosion. In one embodiment, the method comprises mounting at least two piezoelectric sensors onto the surface of the post-tensioned concrete specimen; receiving acoustic emission signals at the piezoelectric sensors; recording the acoustic emission signals with associated parameters and waveforms; and filtering the data for example using Root Mean Square data and the average frequency data. | 11-26-2015 |