Walking of flatwork on expansive soils
Article Abstract:
Expansive soils are moisture sensitive and expand whenwet and shrink when dried. This results in cycles of movement called 'walking',wherein flatwork moves away from structures. A field experiment is conducted tostudy flatwork walking on expansive soils. Results show that most vertical and horizontal movements occur during wet periods and each succeeding wet period reduces the magnitude of movement. The moisture condition of the clay before flatwork construction must also be considered, since less movement occurs when the clay is initially wet than when it is initially dry.
Publication Name: Journal of Performance of Constructed Facilities
Subject: Science and technology
ISSN: 0887-3828
Year: 1992
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Retail-grocery-floor failure
Article Abstract:
The moisture dome test is an effective method to determine the moisture content in a concrete slab which may cause damage to linoleum floor tiles. This test involves measuring the vapor flow rate at various slab locations and at different times of the year. The test apparatus consists of a plastic cover and an anhydrous calcium chloride preweighed dish. Moisture from the concrete slab is absorbed by the calcium chloride and the weight gained is then used to calculate the vapor flow rate.
Publication Name: Journal of Performance of Constructed Facilities
Subject: Science and technology
ISSN: 0887-3828
Year: 1996
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Moisture migration through concrete floor slabs
Article Abstract:
Moisture traveling through concrete floor slabs destroys floor coverings such as carpet, hardwood and vinyl. A study is conducted to investigate the migration of moisture through concrete floor slabs by capillary action. Results show that to prevent capillary rise through the concrete, the type and gradation of the material placed under the concrete floor slab is more significant than the thickness of the layer.
Publication Name: Journal of Performance of Constructed Facilities
Subject: Science and technology
ISSN: 0887-3828
Year: 1992
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