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  • Users: damianyu
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  1. damianyu

    Coating system for SP2/3

    If the steel surface can not be blast cleaned and surface can only be prepared to SP2/3, what would be the recommended coating system for corrosion protection? The existing coating is a 3-coat system with Zinc rich primer, epoxy intermediate coat, and polyurethane top coat.
  2. damianyu

    What causes steel plate opens up like a book?

    The picture shows a 1/2" ASTM A36 steel plate from the mid-1970's. It is part of a tunnel with segmented steel liners. The tunnel is under groundwater so there has been leaking. I am puzzled what can cause a corrosion like this.
  3. damianyu

    Concrete aggregate testing for ASR potential

    Which of the following tests requires using cementitious materials that are proposed for a specific project? Thanks. ASTM C1260 ASTM C1567 ASTM C1293
  4. damianyu

    Aggregate testing for ASR potential?

    Which of this tests requires using materials that are proposed for a concrete mix? Thanks. ASTM C1206 ASTM C1567 ASTM C1293

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