1.01 SUMMARY
A. Section Includes:
Furnishing of all labor, materials, services and equipment
necessary for the supply and installation of crystalline
waterproofing additive to concrete structures as indicated
on the drawings and as specified herein. The crystalline
waterproofing material shall be added to concrete
during the mixing cycle, and shall be used in above
or below-grade walls and slabs, including liquid retaining
structures where enhanced chemical resistance is required.
B. Related Sections:
1. Section 03100 - Concrete Work
2. Section 03200 - Concrete Reinforcement
3. Section 07900 - Joint Sealers
1.02 REFERENCES
A. Applicable Standards:
The following standards are referenced herein.
1. American Society for Testing and Materials (ASTM)
2. Army Corps of Engineers (CRD)
3. American Concrete Institute (ACI)
4. NSF International (NSF)
1.03 SYSTEM DESCRIPTION
A. Crystalline Waterproofing
Additive:
Concrete waterproofing system shall be of the crystalline
type that chemically controls and permanently fixes
a non-soluble crystalline structure throughout the
capillary voids of the concrete. The system shall
cause the concrete to become sealed against the penetration
of liquids from any direction, and shall protect the
concrete from deterioration due to harsh environmental
conditions.
1.04 SYSTEM PERFORMANCE REQUIREMENTS
A. Testing Requirements:
Crystalline waterproofing system shall be tested in
accordance with the following standards and conditions,
and the testing results shall meet or exceed the performance
requirements as specified herein.
B. Independent Laboratory:
Testing shall be performed by an independent laboratory
meeting the requirements of ASTM E 329-90 and certified
by the United States Bureau of Standards. Testing
laboratory shall obtain all concrete samples and waterproofing
product samples.
C. Crystalline Formation:
Crystallizing capability of waterproofing system shall
be evidenced by independent SEM (Scanning Electron
Microscope) photographs showing crystalline formations
within the concrete matrix.
D. Permeability:
Independent testing shall be performed according to
U.S. Army Corps of Engineers CRD-C48-73 “Permeability
of Concrete”. Treated concrete samples shall
be pressure tested to 150 psi (350 foot head of water)
or 1.05 MPa (106 m head of water). The treated samples
shall exhibit no measurable leakage.
E. Chemical Resistance:
Independent testing shall be performed to determine
“Sulfuric Acid Resistance of Concrete Specimens”.
Treated concrete samples (dosage rates of 3%, 5% and
7%) shall be tested against untreated control samples.
All samples shall be immersed in sulfuric acid and
weighed daily until a control sample reaches a weight
loss of 50% or over. On final weighing the percentage
weight loss of the treated samples shall test significantly
lower than the control samples.
F. Compressive Strength:
Independent testing shall be performed according to
ASTM C39 “Compressive Strength of Cylindrical
Concrete Specimens”. Concrete samples containing
the crystalline waterproofing additive shall be tested
against untreated control sample. At 28 days, the
treated samples shall exhibit a minimum of 10% increase
in compressive strength over the control sample.
G. Potable Water Approval:
Independent testing shall be performed according to
NSF Standard 61, and approval for use of waterproofing
material on structures holding potable water shall
be evidenced by NSF certification.
1.05 SUBMITTALS
A. General:
Submit listed submittals in accordance with conditions
of the Contract and with Division 1 Submittal Procedures
Section.
B. Product Data:
Submit product data, including manufacturer’s
specifications, installation instructions, and general
recommendations for waterproofing applications. Also
include manufacturer’s certification or other
data substantiating that products comply with requirements
of Contract Documents.
C. Test Reports:
Submit, for acceptance, complete test reports from
approved independent testing laboratories certifying
that waterproofing system conforms to performance
characteristics and testing requirements specified
herein.
D. Manufacturer’s Certification:
Provide certificate signed by manufacturer or manufacturer’s
representative certifying that the materials to be
installed comply in all respects with the requirements
of this specification.
1.06 QUALITY ASSURANCE
A. Manufacturer Qualifications:
Manufacturer to be ISO 9001 registered, and to have
no less than 10 years experience in manufacturing
the crystalline waterproofing additive for the required
work. Manufacturer must be capable of providing field
service representation during construction phase.
Manufacturers that cannot provide the performance
test data specified herein will not be considered
for the project.
B. Applicator:
Installer of crystalline waterproofing additive shall
be approved by the manufacturer or manufacturer’s
representative in writing.
C. Pre-Installation Conference:
Prior to installation of waterproofing, conduct meeting
with Architect/Engineer, owner’s representative,
applicator (concrete supplier), concrete placer and
waterproofing manufacturer’s representative
to verify and review the following:
- Project requirements for waterproofing as set
out in Contract Document.
- Manufacturer’s product data including
application instructions.
D. Technical Consultation:
The waterproofing manufacturer’s representative
shall provide technical consultation on waterproofing
application.
1.07 DELIVERY, STORAGE & HANDLING
A. Ordering:
Comply with manufacturer’s ordering instructions
and lead time requirements to avoid construction delays.
B. Delivery:
Deliver packaged waterproofing materials to project
site in original undamaged containers, with manufacturer’s
labels and seals intact.
C. Storage:
Store waterproofing materials in dry, enclosed location,
at temperature and humidity conditions recommended
by manufacturer.
1.08 WARRANTY
A. Project Warranty:
Refer to conditions of the Contract for project warranty
provisions.
B. Manufacturer’s Warranty:
Manufacturer shall provide standard product warranty
executed by authorized company official. Term of warranty
shall be [specify term] years from Date of Substantial
Completion.
