paragraph 12.2 occur.
3.12.4
Epoxy Mortar
3.12.4.1
Sampling
As soon as epoxy resin and aggregate materials are available for sampling,
obtain by random selection a sample of each batch. Clearly identify
samples by designated name, specification number, batch number, project
contract number, intended use and quantity involved.
3.12.4.2
Testing
**************************************************************************
NOTE: For projects requiring large amounts of epoxy
repairs use the bracketed sentences.
**************************************************************************
At the discretion of the
Contracting Officer, samples provided may be
tested by the Government
for verification. [Test samples by an approved
laboratory. If a sample
fails to meet specification requirements after two
tests, replace the batch
represented by the samples tested and retest. Test
aggregates in accordance
with ASTM C 117 and ASTM C 136.]
3.12.4.3
Inspection
**************************************************************************
NOTE: Use this paragraph for projects having large
repaired surface areas.
**************************************************************************
Check each repaired area for cracks, spalls, popouts and loss of bond
between repaired area and surrounding concrete. Check each repaired area
for voids by tapping with a hammer or steel rod and listening for dull or
hollow sounds. Immediately repair defects.
3.12.5
[Cement-Based ] [or] [Polymer-Modified] Concrete and Mortar
3.12.5.1
Air Content
Check air content at least [once] [twice] during each shift that concrete
is placed [for each type and class of repair material required]. Obtain
samples in accordance with ASTM C 172 and test in accordance with ASTM C 231.
3.12.5.2
Slump
Check slump [once] [twice] during each shift that concrete is produced [for
each type and class of repair material required]. Obtain samples in
accordance with ASTM C 172 and test in accordance with ASTM C 143/C 143M.
3.12.5.3
Consolidation and Protection
Ensure that the repair material is properly consolidated, finished,
protected, and cured.
3.12.5.4
Compression Tests
Prepare compression test cubes in accordance with ASTM C 31/C 31M and cure
at the site under the same conditions as the repair. Test in accordance
SECTION 03931
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