HomeMy WebLinkAboutDOC - 03-00005 - BYUI - Student Health & Counseling Building13YU IDAHO -
STUDENT HEALTH & COUNSELING CENTER
REXBURG, IDAHO
11 . Repair finished surfaces containing defects_ Surface defects include spalls,
� honeycombs, rock pockets, gazing and crags in excess at O.p1 inch wide opthat pe et ate
to reinforcement orcompletely through un reinforced sections regardless of width and other
objectionable conditions.
2. After concrete has cured at feast 14 days, correct high areas by grinding.
3. Correct localized !ow areas wring or immediately after completing surface finishing
operations by cutting out how areas and replacing with patching mortar. Finish repaired
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areas to blend into adjacent concrete.
4. Correct other low areas scheduled to receive floor coverings with a repair underlayment.
Prepare, mix, and apply repair underfayment and primer according to manufacturer's written
instructions to produce a smooth, uniform, plane, and level surface. Feather edges to
match adjacent floor elevations.
5, correct other low areas scheduled to remain exposed with a repair topping. Cut out !ow
areas to ensure a minimum repair topping depth of 1I4 inch to match adjacent door
-levaiions. Prepare, min, and appfyr repair tapping end primer according to manufacturer's
written instructions to produce a smooth, uniform, plane, and level surface.
6. Repair defective areas, except random cracks and single doles 1 inch or less in diameter,
by cutting out and replacing with fresh concrete. Remove defective areas with clean,
square cuts and expose steed reinforcement with at least 314 inch- clearance all around.
-. Dampen concrete surfaces in contact with patching concrete andapply bonding agent. Mix
patching concrete of same materials and mix as original concrete except without coarse
� aggregate. Pace, compact, and finish to blend with adjacent finished concrete. Cure in
same manner as adjacent concrete.
7. Repair random cracks and single holes I inch or less in diameter with patching mortar.
Groove tap of cracks and cut out holes to sound concrete and clean off dust, dirt, and hoose
particles. Dampen cleaned concrete surfaces and apply bonding agent. Place patching
mortar before bonding agent has dried. 'Compact patching mortar and finish to match
adjacent concrete. Keep patched'area continuously moist for at feast 72 hours.
E. Perform structural repairs of concrete, subjectto Architect's approval, using epoxy adhesive end
patching mortar. .
F. Repair materials andinstallation not specified above may be used, subject to Architect's appraval.
3.13 FIELD QUALITY CONTROL i
A. Testing Agency: Owner will engage a qua'lified independent testing and inspecting agency.#o �
sample materials, perform tests, and subm�# test reports during concrete placement. Sampling
and testing for qualify control may include those specified 3n this Article.
B. Testing Services: Testing of composite samples of fresh concrete obtained according to
ASTM C 172 shall be performed according to the following requirements:
1 . Testing Frequency: Obtain one composite sample for each dad's pair of each concrete mix
exceeding 5cu. dr., but less than 25 cu. yd., plus one set for each additional 54 cu: yd. or
fraction thereof,
a. When frequencyof te'stingM11 provide fewer than five compressive -strength testsfor
- each concrete mix, testing shall be conducted from at least five randami selec�e�
batches or from each batch 'if fewer than five are used.
CAST -IN-PLACE CONCRETE
03300-15
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