Forensic Engineers and Consultants

Tag Archive: vapor barrier

  1. Moisture Intrusion into Structural Reinforced Concrete

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    Scenario:  The owners of Jones’ Marine, a marina with a wharf structure on a tidal saltwater river, cater to the operators of ships, barges, and large yachts.  There are both diesel and gasoline fuel pumps at the edge of the wharf.  In addition, a large mobile crane for lifting the large vessels out of the water for maintenance is in service at the wharf.  This crane is driven out to the edge of the wharf deck suspended over the water, subjecting this deck and the structure beneath it to very high loading.  They purchased the property from its former owners about 10 years ago and are conscientious about maintenance and upkeep of their thriving facility.  They decide it is time to have a survey performed of the condition of the precast reinforced concrete piles and pile caps beneath and supporting the concrete wharf platform/deck.  They are alarmed at what is discovered by this survey:  Significant spalling (more…)

  2. Moisture Intrusion into Concrete Slabs-on-Grade

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    Scenario:  A young couple is excited about buying their first home.  They pick it out from a catalog of house plans from the developer of a new neighborhood in town.  It will be a brand new construction starter type bungalow home on a slab-on-grade foundation.  For a cost adder, which is considerable to them, they decide to upgrade the finished flooring from carpeting to hardwood laminate.  Unfortunately, after only a few weeks of residency, the hardwood planks begin to buckle and separate from the slab throughout the house.  They do not know what is causing it, or what to do to remedy it, (more…)

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