HomeMy WebLinkAbout3795-141. 01 WORK INCLUDED
Work includes, but is not limited to the following: Furnish all labor and materials, appliances, tools,
equipment, facilities, transportation, and services necessary for installing all concrete work complete as
indicated on the drawings and specifications including, but not limited to:
X Furnish and set all reinforcing steel, bolts and anchors,
B. Install all items required by other trades which are to be cast into concrete.
C. Concrete mow curbs, banding, poured in place walls, other flatwork, footings,
pans and slabs for: walls, fencing, benches, controllers, decks, etc., where
applicable,
R4RT-_2_GENERAL
All requirements of subsection 3.31, standard specifications for Public Works Construction, shall apply
except as specified herein.
® INSPECTION OF SITE
Examine related work and surfaces before starting work in this section. Report to the Landscape Architect
in writing, site conditions which will prevent the proper provision of this work, Beginning the work in this
section without reporting unsuitable conditions to the Landscape Architect constitutes acceptance of site
conditions by the Contractor. Any required removal, repair, or replacement of this work caused by
unsuitable conditions shall be done at no additional cost to Owner.
2.2 PROTECTION OF EXISTING CONDITIONS
Contractor shall acquaint himself with all site conditions. He shall take necessary precautions to protect
existing site conditions. Should damage be incurred, this Contractor shall repair damage to its original
condition or furnish and install equal replacement at his own expense, to the satisfaction of the City.
Wherever the terms "approve." "approval," or "approved" are used in the Specifications, they mean approval
of the Landscape Architect, the City's Representative or their field representatives, or in writing.
2.6 SUBMITTALS
At least 10 days after award of contract, Contractor shall submit for approval samples and/or
manufacturers' latest catalog cuts and specifications of the following prior to beginning work. Approved
samples shall be standards for completing work.
A. One 2 -ft. x 2 -ft. x 2 -in. sample for each type of concrete finish and color at the job site.
B, Color samples for expansion joint compounds.
C. All submittal data shall be forwarded in a single package to the Landscape Architect within
15 days after award of the GeneralContract unless otherwise approved by the Landscape
Architect and/or City's Construction Representative,
2.7 SUBSTITUTIONS
A. Standards; Specific reference to manufacturers' names and products specified in this
section are used as standards; this implies no right to substitute other material or
methods without written approval of the Landscape Architect.
B. Approval; Installation of any approved substitutions is Contractors's responsibility. Any
changes required for installation of any approved substitution must be made to the
satisfaction of Landscape Architect and without additional cost to City. Approval by
Landscape Architect of substituted materials and/or dimensional drawings do not waive
these requirements,
PART 3 - 1lI,;V1fBJALS
Materials shall be of first quality and of domestic manufacture as noted below:
A. Portland cement shall conform to ASTM -C 150, Type I or Type 11.
B. Concrete aggregate shall conform to ASTM -C33.
C. Water shall be clean, free from strong acid, alkali, oil or organic matter,
®. Admixture for all formed concrete shall be SIKA Chemical Corp.'s "Plastiment", or
approved equal, applied in strict accordance with manufacturer's directions.
E. Reinforcement: reinforcing steel ASTM -A15 and ASTM-A305.Wirefabric: ASTM -A185
F. Forms.
1. Lumber shall be "construction grade" Douglas fir.
2.
used for forming shall be at least 518 -inch thick and edge sealed.
G. Expansion joint filler shal I conform with ASTM -D171 (premol ded).
PSR T 4 - EXECD TLM
stakes set not more than four feet (4') apart so as to remain immovable throughout the
construction. All forms shall be approved by City within a tolerance of one percent
(1%). All materials shall be accurately and separately weighted and mixing shall continue
until the distribution of material is uniform and the mass of concrete is homogeneous.
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Inspector. The concrete shall be mixed at least 5 minutes after such water is added and
not less than 3 minutes of this time shall be immediately prior to the discharge of the
batch. Total mixing time after adding original water shall be at least 15 minutes.
C. Concrete which is not placed within 90 minutes after the introduction of cement and water,
and concrete which has stood for 30 minutes after leaving the mixer, shall not be used.
approved by Owner.
B. Before depositing new concrete against old concrete, all laitance shall be removed, and
the surfaces roughened to expose the embedded aggregate. The surfaces shall then be
covered with cement grout, using the specified mix with 1/2 of the course aggregate
omitted, 1-1 /2 inches thick.
C. Conveying and placing of concrete shall be done so as to prevent separation of
ingredients, and in no case shall the free fall exceed 6 feet. Tremles shall be used as
concrete being allowed to flow after being placed. Placing shall be performed as a
continuous operation until each section is completed.
B.
sarn pie is squeezed /lard in the hand, surface moisture, but no free water, shall appear on
the sample. Do not mix more than can be used in 30 minutes.
4.09 CURING AND PROTECTION
A. All exposed surfaces of concrete shall be protected from damage due to temperature,
elements, and construction operations,
B. Curing shall be as follows;
1 All exposed -surfaces of concrete shall -be protected form premature -drying and
freshly placed concrete shall be protected against wash by rain. All concrete
may reach both surfaces of walls, the forms shall be loosened and water shall be
and the forms.
2. All liquid curing compounds shall be used in accordance with the manufacturer's
recommendations and shall not be used on surfaces receiving concrete
hardener,
4.10 DEFECTIVE CONCRETE
L A -1 D S C A P *
A R C H I T E CT U F40
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