Specification Details
Pages
44
Dimensions
8.5" x 11"
Editable
Word Doc
Usage Limit
Unlimited Projects
Section
07 17 00
Provided by
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Bentonite Waterproofing
Use this CSI 3 part SimpleSpecs™ master specification to specify panelized or composite sheet form bentonite waterproofing at below-grade, under the slab, and split slab construction.
Waterproofing incorporates bentonite clay which absorbs water until it is fully saturated, at which point no water will pass through the clay. Composite bentonite waterproofing contains both bentonite clay and a prefabricated waterproof sheet.
In geotextile sheets, bentonite waterproofing consists of bentonite clay between two geotextile fabrics. Since it conforms to irregular surfaces, it is useful for waterproofing against excavations and lagging but is also used for traditional below-grade and under slab applications.
Waterproofing in panel form places the bentonite inside corrugated cardboard panels that are mechanically fastened to vertical surfaces or placed loosely over a mud slab or prepared subgrade in under slab applications.
Composite bentonite waterproofing combines bentonite clay factory pre-applied to an HPDE waterproofing sheet.
Since bentonite swells, it can exert tremendous pressure on overlying slabs and adjacent construction when it becomes wet. Consult with a manufacturer when considering waterproofing for these applications.
This waterproofing requires a protection course to prevent damage during backfilling and placement of overlying construction. A drainage course applied over the waterproofing reduces hydrostatic pressure, thereby reducing the possibility of leaks. Some drainage boards can also act as the protection course.
Related Association:
Industrial Minerals Association – North America
Related SimpleSpecs™ master specifications:
07 13 13 – Bituminous Sheet Waterproofing
07 14 13 – Hot Fluid-Applied Waterproofing
07 14 16 – Cold Fluid-Applied Waterproofing
07 16 16 – Crystalline Waterproofing
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Design professionals are accustomed to seeing lengthy project specifications, so why is SimpleSpecs™ so short?
Specifications have grown evermore wordy over the years for several reasons:
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The mistaken belief that specifications must be lengthy and legal-sounding to be enforceable. In fact, quite the opposite is true. Having shorter, easily understood specifications makes us less likely to have problems in the field.
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A belief that having lots of words protects us from a Contactor making mistakes. There is no way to include enough statements to protect yourself from a bad contractor, regardless of the length of your specification.
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Our desire to be in control of the project by specifying means and methods instead of including simple, enforceable statements.
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