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The
work in this section shall be designated as Textured Concrete
in the plans. The work shall include all labor, material,
equipment and transportation required to complete the
installation of Textured Concrete.
1.2 Description:
Textured Concrete – a cast – in – place concrete slab, having
the surface colored and imprinted with pattern and texture
while the concrete is still in the plastic condition. The work
is performed on the job – site by experienced workmen.
1.3
Related Work:
·
To be completed by the contractor or owner: -
Preparation, finish grading, setting of forms
and screeds, and furnishing of reinforcement when required.
·
Provide and place concrete.
·
Provide and apply Color Hardener.
·
Provide and apply Release Agent when required.
·
Provide and apply imprinting tools in the proper pattern per
specification.
·
Removal of Release Agent and washing surface by water jet
after concrete has initially cured.
·
Provide contraction joints as required.
·
Provide and apply two coats of Sealer.
1.4
Quality Assurance:
The Contractor shall provide a job-site sample
to be approved by the Architect prior to start of
construction, (Optional)
2.
PRODUCTS & MATERIALS:
2.1
Concrete Mix Design: -
The concrete shall have minimum compressive
strength of: -
·
4,000 psi in severe freeze – thaw areas.
·
3,500 psi in moderate freeze-thaw areas.
·
3,000 psi in non – freeze areas.
Portland
cement shall conform to ASTM C150. TYPE I, II or V, depending
on soil conditions. Aggregates shall conform to ASTM C33 and
not to exceed 9mm. in size. Mixing water shall be fresh, clean
and potable. In freeze – thaw areas only, an air – entraining
agent complying with ASTM C260 shall be used to achieve an
entrained air. No admixtures containing calcium chloride are
permitted.
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