Pre-Project (preliminary) civil engineers
investigations:
Soil report: groundwater was
encountered in boring at the depth
of 24' below existing soil grade
Surveyor map - site if substantially flat with
slop towards street
By drawings basement dryness shall be ensured
with water-proofing measures, such as:
1.
Soil conditions and low underground
water table
2. "Gravel
pilow" to avoid osmotic water suction from under the basement. "Gravel
pilow" as well is seismic protection to the basement
3.
Waterproofing membrane over "gravel pilow" with special material of
company
Grace, Paraseal or equal - was placed and passed special inspection
4.
Xypex. Mix Design -
Xypex Admix to
the concrete at the time of batching at the Milpitas concrete factory
4.1.
How waterproof is
xypex-treated concrete? Browse
schematic drawings
of xypex application
5. Subgrade
drainage system below basement floor slab with 4" drainage piping and two
certified water sump pumps - done, inspected
6.
Structural Water-proofing with
PrePrufe Water proofing system over basement walls - was done and pass
special inspection
7.
Backfilling with original soil - done with soil compaction, inspected
8. Organizing
of surface water, i.e. drainage according to "Graiding and drainage plan"
- done and inspected
9. Organizing
of downspout water away from basement walls
10. Both
doors and window sealing with appropriate seal. Metal flashings
11. Two
layers of waterproofing paint over finish coat of stucco seal stucco
Xypex cocentrate for tritment
Fulfilling the job
Ready mixed
concrete supplier - Milpitas Materials Co, 1125, North Milpitas Blvd,
Milpitas, CA 95035-3152
Phones: (408)
262-0656, (510) 656-2619, (650) 969-4401
Concrete
recipe - Mix 7038OC was used 12 pounds of Xypex added per cubic yard
Job
site and jon in progress:
October, 13 2004 - Basement sewer pipes were installed,
tested and inspected. "Gravel pillow" was done, i.e. gravel was
brought and spreaded
October 18, 2004
- 2" leader
concrete layer (cement screed) was done... By night rain had happened
October 25, 2004
- Some reins...Armature
(reinforcement) was started. Floor armature and anchors were done,
checked by framer and inspected
October 29, 2004
- Cement was poured,
basement concrete
floor done. Footage for one car garage was done couple days after
November 05, 2004
- Basement walls deck (decking) in progress
Concrete moisture testing
American Moisture Test
Kit - Instruction Guide
Concrete Moisture
Emission Testing
Moisture
Meters/Detectors
Construction materials Tasting labs
Concrete Floors and Moisture
Focus on
Floors
Vapor intrusion
Water in the basement
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