2nd Change Order 06/18/2019 Mayor Sylvia J.Murphy,District 5
County of Monroe '' 1.-xN
Mayor Pro Tern Danny L.Kolhage,District I
The Florida Keys z C Michelle Coldiron,District 2
Heather Carruthers,District 3
•
David Rice,District 4
BOARD OF COUNTY COMMISSIONERS-
Memorandum
DATE: 06/17/2019
TO: BOCC
Digitally signed by Kevin G.Wilson,P.E.
DN:cn=Kevin G.Wilson,P.E.,o=Monroe County,FL(the Florida
FROM: Kevin G. Wilson, P.E. Keys,ou,email=wilson-kevin@monroecounty-fl.gov,c=US
Date:2019.06.17 13:14:40-04'00'
SUBJECT: Proposed Change Order to be Approved
Attached is proposed Change Order#2 for the Pigeon Key Ramp Rehabilitation project. This change
order is technical only and does not affect the final contract sum. The substantial completion date
remains the same.
Monroe County Ordinance 027-1998 and subsequent amendments provide authority for the
Administrator to approve change orders within specified limits after providing Board of County
Commissioners with at least 24 hours to review them and pose any questions or objections that they may
have. It is the Administrator's intent to approve the attached change order under that authority.
MONROE COUNTY/ENGINEERING/ PROJECT MANAGEMENT
CONTRACT CHANGE ORDER
PROJECT TITLE: Pigeon Key Ramp Rehabilitation Project CHANGE ORDER NO: 2
INITIATION DATE: 6/5/19
TO CONTRACTOR: American Empire Builders, Inc. CONTRACT DATE: 12/19/18
The Contract is changed as follows:
The original Contract Sum $1,960,000.00
Net change by previously authorized Change Order $477,103.68
The Contract Sum prior to this Change order was $2,437,103.68
The Contract Sum/Time is not affected by this Change Order 2 $0.00
The Revised Contract Sum including this Change Order $2,437,103.68
TECHNICAL SPECIFICATION CHANGE ONLY
Due to the logistics and inability to get ready mix Class IV concrete (contract item 400-4-5) onto
Pigeon Key Island within the FDOT specified allowable placement timeframe, the FDOT District
IV and VI Materials Lab and the project EOR have approved the use of an alternate APL
approved mix that meets the 5500 PSI requirement, in place of the plant ready mix Class IV
Concrete originally specified by the EOR. The CEI concurs with this change order. The Change
Order 2 documentation includes: RFI14 executed by the EOR, and the FDOT Approved Product
List (APL)for the concrete being used. No microsilica, flyash or silica fume is allowed.
Notes:
This is a technical specification change only and there are no resulting changes to the
contract bid line items or contract time.
CONTRACTOR t1 n47 g44 re. _5LI f I CIP6
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ENGINEERING SERVICES DIRECTOR ,„/"/ ►�/� �1�- l��l�i�/-
ASSISTANT COUNTY ADMINISTRAT R i D�te it
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(/ Date
FLORIDA DEPARTMENT OF TRANSPORTATION/FHWA
Pigeon Key Ramp Bridge#904480 Rehabilitation
FPN:436566-1
Contract: GOW60
Federal Id: D618-030-8
Acknowledgement:
- Date
6.5.19 AEB CO2 PKR
Change Order Attachment per Ordinance No. 004-1999
• Change Order was not included in the original contract specifications. Yes ® No ❑
If Yes, explanation:
Engineer of Record (Metric Engineering, Inc) specified ready mix concrete which is logistically
impossible to get to island within FDOT specified placement timeframe.
• Change Order was included in the original specifications. Yes ❑ No
If Yes, explanation of increase in price:
• Change Order exceeds$25,000 or 5% of contract price (whichever is greater). Yes ❑ No
If Yes, explanation as to why it is not subject for a calling for bids:
Construction in progress.
• Project engineer/architect approves the change order. Yes ® No ❑
If no, explanation of why:
• Change Order is correcting an error or omission in design document. Yes ❑No
Should a claim under the applicable professional liability policy be made? Yes ❑ No
Explain:
6.5.19 AEB CO2 PKR
REQUEST FOR INFORMATION NO. 14
From: Rigoberto Tirado To: Jordan Salinger
American Empire Builders, Inc WSP
Phone: 305-261-9276 Fax: Phone:305-916-5690 Fax:
Project Name: Receipt Logged:
Pigeon Key Ramp Rehabilitation Project 5/28/2019
Submitted By: Date: 5/28/19 Dwg/Spec No./Revision/Detail/Sect.No.
Rigoberto Tirado Pay Item 0400-4-5 Concrete Class IV Substructure
Subject: Concrete Class IV Substructure
Problem&suggested solution:
Due to availability and logistics issues with the Concrete Class IV required for the retrofitting of the
foundations,we propose the use of a mix of SikaQuick-1000 cementitious mortar and gravel (Attached
you will find the product's data sheet).
Engineering Dept. Review
Solution:
We take no exception to the Contractor's request to use SIKA 1000 expanded with graded gravel
for the repairs.
REVIEWED AND RESPONDED
Review is only for general conformance with the design concept of project and
general with contract documents. Contractor is responsible for confirming and
correlating dimernsions at job site,for information which pertains to fabrication
processes or construction techniques,for condition of work of all trades and for
performing all work in a safe and satisfactory manner.Review of shop drawings shall
in no way relieve the contractor of the responsibility for full compliance with the
requirements of the contract documents nor of errors or omissions in shop drawings.
METRIC ENGINEERING,INC.
By: SS Date: May 29,2019
Solution By: Soheila Sadough,PE Date: 05-29-19 Eng.Dept. (Date:
PRODUCT DATA SHEET
SikaQuick®-1000
RAPID HARDENING REPAIR MORTAR WITH EXTENDED WORKING TIME
PRODUCT DESCRIPTION CHARACTERISTICS /ADVANTAGES
SikaQuick°-1000 is a one-component, rapid hardening, •Specially suited for warmer weather applications when
early strength gain,cementitious, patching mortar for extended working time is required
concrete.SikaQuick°-1000 LD is a low dust version of •Epoxy coatings can be applied as early as 6 hours at 730
this formula. F(23°C).
•Freeze/thaw resistant
USES •Easy to use-labor-saving material
•Not gypsum-based
•On grade,above grade and below grade concrete con- •High early strength
ditions •Open to foot traffic in 4 hours/Open to vehicular
• Highway overlays and repairs traffic in 6 hours at 73°F(23°C)
•Structural repair material for concrete roadways, park- •Easily applied to clean,sound substrates
ing structures,bridges,dams and ramps •SikaQuick®-1000 LD is an available, low dust version of
• Full depth patching repairs(may require multiple lifts) this product.
• Economical patching material for horizontal flatwork
repairs of mortar lines and concrete surfaces APPROVALS / STANDARDS
•Rapid hardening as defined by ASTM C 928
PRODUCT INFORMATION
Chemical Base •SikaQuick®-1000 is a blend of cement,select aggregates and specialty addit-
ives
•SikaQuick°-1000 LD is a blend of cement,select aggregates,low dust and
specialty additives
Packaging 50 lb(22.7 kg)bag
Appearance/Color Gray powder
Shelf Life 12 months from date of manufacture if stored properly in original,unopened
and undamaged,sealed packaging
Storage Conditions Store dry at 40°—95°F(4°—35°C)
Protect from moisture.If damp,discard material
Product Data Sheet
SikaQuick®-1000
November 2018,Version 01.05
020302040040000011
1/5
TECHNICAL INFORMATION
Compressive Strength 3 hours 1,250 psi(8.6 MPa) (ASTM C 109)
1 day 4,000 psi(27.5 MPa) 73°F(23°C),
7 days 5,000 psi(34.5 MPa) 50%R.H.
28 days 7,000 psi(48.3 MPa)
Modulus of Elasticity in Compression 28 days 4.6 x 106 psi(32 GPa) (ASTM C-469)
73°F(23°C),
50%R.H.
Flexural Strength 1 day 700 psi(4.8 MPa) (ASTM C 293)
7 days 900 psi(6.2 MPa) 73°F(23°C),
28 days 1,000 psi(6.9 MPa) 50%R.H.
Splitting Tensile Strength 1 day 200 psi(1.4 MPa) _ (ASTM C 496)
7 days 300 psi(2.1 MPa) 73°F(23°C),
28 days 400 psi(2.8 MPa) 50%R.H.
Tensile Adhesion Strength 28 days Approximately 300 psi (2.1 (ACI 503R)
MPa) 73°F(23°C),
Substrate failure 50%R.H.
Shrinkage 28 days 0.06% (ASTM C 157
modified per
ASTM C-928)
73°F(23°C),
50%R.H.
Abrasion Resistance 28 days 0.026 inch (0.66 mm) (ASTM C 779)
of wear at 1 hour 73°F(23°C),
50%R.H.
Freeze-Thaw Stability 28 days 98% (ASTM C 666)
Freeze Thaw De-Icing Salt Resistance 50 cycles 0.080 lb/ft2(391 grams/ (ASTM C 672)
m2)
Rapid Chloride Permeability 28 days <1,000 Coulombs (ASTM C 1202/
AASHTO T 277)
73°F(23°C),
50%R.H.
•
APPLICATION INFORMATION
Mixing Ratio 4.5—5 pints(2.1—2.4 L)
Coverage Neat 0.43 ft3(0.012 m3)
Extended with 25 lbs(11.4 kg)of 3/8 0.58 ft3(0.017 m3)
inch (10 mm)pea gravel
(Yield figures do not include allowance for surface profile,porosity or material waste)
Consumption/Yield/Dosage(PRINT
single line)
Layer Thickness Min. Max.
Neat 1/4 inch(6 mm) 2 inches(50 mm)
Extended 1 inch (25 mm) 6 inches(152 mm)
•Do not feather edge
•Do not exceed 7 inches(178 mm)slump when extended
Product Data Sheet
SikaQuickm-1000
November 2018,Version 01.05
020302040040000011 ,,,,I
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Product Temperature 65°—75°F(18°—24°C)
Ambient Air Temperature >400-95°F(4°-35°C)
Substrate Temperature >40°-95°F(4°-35°C)
Set Time 35—85 minutes (ASTM C 266)
73°F(23°C),
50%R.H.
Final Set Time >120 minutes (ASTM C 266)
73°F(23°C),
50%R.H.
APPLICATION INSTRUCTIONS MIXING
SURFACE PREPARATION •Wet down all tools and mixer to be used.
•Pour the required amount of clean,potable water[ap-
•Concrete surface must be clean and sound. proximately 70°F(21°C)] into a suitably sized and
• Remove all deteriorated concrete,dirt,oil,grease,and clean mixing container, using a calibrated measuring
other bond-inhibiting materials from the area to be re- jug or similar,to ensure strict controlof the water con-
paired. tent. Do not over-water.
• Be sure repair area is not less than 1/4" (6 mm)deep. •Add 1 bag while continuing to mix with a low-speed
• Preparation work should be done by high pressure wa- drill (400-600 rpm)and mortar mixing paddle,or in an
ter blast,scabbier or other appropriate mechanical appropriate morter mixer.
means to obtain an exposed aggregate surface profile •Once all the powder has been added,mix to a uniform
of±1/8"(3 mm) [minimum CSP-6]. consistency,maximum 3 minutes,until a lump-free
•To ensure optimum repair results,the effectiveness of blend is achieved.
decontamination and preparation should be assessed •Thorough mixing and proper proportioning of the
by a Tensile Adhesion Strength(pull-off)test. powder and liquide is necessary.
•Saw cutting perimeter edges of concrete repair area at •To help control setting times,colder water may be used
a dovetail is preferred. in hot weather and warmer water may be used in cold
•Substrate should be Saturated Surface Dry(SSD)with - weather.
clean water prior to application. No standing water •Inaccurate proportioning of the powder to liquid will
should remain during application. result in a finished product that may not conform to
•Rust,scale,mortar,concrete,dust and other loose and the typical published performance property values.
deleterious material which reduces bond or contrib-
utes to corrosion shall be removed from steel rein- •With water or undiluted SikaLatex°R: Pour 4.5 pints
forcement. (2.1 L)of liquid into the mixing container.Slowly add
•Surfaces shall be prepared using abrasive blast clean- powder,mix and adjust as above.Add up to another
ing techniques or high pressure water blasting to 1/2 pint(0.24 L) maximum of liquid to achieve desired
acheive a bright metal finish. consistency. Do not over-water.
PRIMING •With diluted SikaLatex R:SikaLatex°R admixture may
be diluted up to 5:1(water:SikaLatex°R)for projects
•Concrete substrate: Prime the prepared substrate with requiring minimal polymer modification.Pour 4.5 pints
a scrub coat of SikaQuick®-1000/SikaQuick®-1000 LD (2.1 L)of the mixture into the mixing container.Slowly
prior to placement of the mortar.The repair mortar has add powder,mix and adjust as above.
to be applied into the wet scrub coat before it dries.
EXTENSION WITH AGGREGATES
•Reinforcing Steel:Steel reinforcement should be thor-
oughly prepared by mechanical cleaning to remove all • For applications greater than 1"(25 mm)in depth,add
traces of rust.Where corrosion has occurred due to the 3/8" (10 mm)coarse aggregate.
presence of chlorides,the steel should be high pres- •The typical addition rate is 25 lbs(11.4 kg)of aggreg-
sure washed with clean water after mechanical clean- ate per bag.It is approximately 2 gallons(7.6 L)by
ing. For priming of reinforcing steel use Sika®Armatec® loose volume of aggregate.
corrosion protection products(consult current Product •The aggregate must be non-reactive(reference ASTM C
Data Sheets). 1260,C 227 and C 289),clean,well graded,Saturated
Surface Dry(SSD), have low absorption and high dens-
ity,and comply with ASTM C 33 size number 8 per Ta-
ble 2.
Product Data Sheet
SikaQuick°-1000
November 2018,Version 01.05 j
020302040040000011 )I
lo
BUILDING TRUST b"
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•Variances in aggregate may result in different are used,follow cure times for the bonding agents used
strengths. as a guide prior to putting SikaQuick®-1000/Sika-
• Do not use limestone aggregate. Quick®-1000 LD in service.Assure suitability with the
•Do not exceed a slump of 7" (178 mm).This may cause manufacturer of the bonding agent.
excessive bleeding and retardation and may reduce the •SikaQuick6-1000/SikaQuick®-1000 LD does not form a
strength and performance of the material. vapor barrier when cured.
APPLICATION BASIS OF PRODUCT DATA
•A neat mix of SikaQuick®-1000/SikaQuic10-1000 LD Results may differ based upon statistical variations de-
mortar must be scrubbed into the mechanically pre- pending upon mixing methods and equipment,temper-
pared,SSD substrate. Be sure to fill all pores and voids. ature,application methods,test methods,actual site
•Force material against edge of repair,working toward conditions and curing conditions.
center. After filling repair,screed off excess.
•Allow material to set to desired stiffness,then finish OTHER RESTRICTIONS
with wood or sponge float for a smooth finish,or
broom or burlap-drag for a rough finish. See Legal Disclaimer.
•If a smoother finish is desired,a magnesium float
should be used. ENVIRONMENTAL, HEALTH AND SAFETY
•To assist in the finishing process,use SikaFilm finish-
ing aid.Consult current Product Data Sheet. For further information and advice regarding transporta-
•Mixing,placing,and finishing should not exceed 30 tion,handling,storage and disposal of chemical
minutes maximum. products,user should refer to the actual Safety Data
•Refer to ACI 305,the"Guide to Hot Weather Concret- Sheets containing physical,environmental,toxicological
ing"or ACI 306,the"Guide to Cold Weather Concret- and other safety related data. User must read the cur-
ing"when there is a need to place this product while rent actual Safety Data Sheets before using any
either hot or cold temperatures prevail.Thinner place- products. In case of an emergency,call CHEMTREC at 1-
ments will be more sensitive to the temperature condi- 800-424-9300, International 703-527-3887.
tions.
CURING TREATMENT LEGAL DISCLAIMER
•As per ACI recommendations for portland cement con- • KEEP CONTAINER TIGHTLY CLOSED
Crete,moist curing is required. • KEEP OUT OF REACH OF CHILDREN
•Moist cure with wet burlap and polyethylene,a fine • NOT FOR INTERNAL CONSUMPTION
mist of water or with a water based,*compatible cur- • FOR INDUSTRIAL USE ONLY
ing compound meeting ASTM C 309. • FOR PROFESSIONAL USE ONLY
•Curing compounds adversely affect the adhesion of fol-
lowing lifts of mortar,leveling mortar or protective Prior to each use of any product of Sika Corporation, its
coatings. subsidiaries or affiliates("SIKA"),the user must always
• Moist curing should commence immediately after fin- read and follow the warnings and instructions on the
fishing. product's most current product label,Product Data
• Protect freshly applied mortar from direct sunlight, Sheet and Safety Data Sheet which are available at
wind,rain and frost. usa.sika.com or by calling SIKA's Technical Service De-
•To prevent from freezing,cover with insulating materi-
al(e.g.curing blanket). SIKA literature or materials relieves the user of the oblig-
e Pretesting of curing compound is recommended. ation to read and follow the warnings and instructions
for each SIKA product as set forth in the current product
LIMITATIONS label, Product Data Sheet and Safety Data Sheet prior to
use of the SIKA product.
•Avoid application in direct sunlight,during precipita-
tion and/or when strong winds prevail. SIKA warrants this product for one year from date of in-
•Use only clean,potable water stallation to be free from manufacturing defects and to
•As with all cement based materials,avoid contact with meet the technical properties on the current Product
aluminum to prevent adverse chemical reaction and Data Sheet if used as directed within the product's shelf
possible product failure.Insulate potential areas of life.User determines suitability of product for intended
contact by coating aluminum bars,rails, posts etc.with use and assumes all risks. User's and/or buyer's sole
an appropriate epoxy such as Sikadur®-32 Hi-Mod. remedy shall be limited to the purchase price or replace-
•Bonding agents(e:g.Sika®Armatec•110 EpoCem) ment of this product exclusive of any labor costs.NO
should not be used.Use of the neat mortar as a scrub OTHER WARRANTIES EXPRESS OR IMPLIED SHALL AP-
coat is recommended and preferred. If bonding agents PLY INCLUDING ANY WARRANTY OF MERCHANTABIL-
Product Data Sheet
SikaQuick®-1000
November 2018,Version 01.05
r n
1 I
020302040040000011 Ifp,r
BUILDING TRUST
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ITY OR FITNESS FOR A PARTICULAR PURPOSE.SIKA
SHALL NOT BE LIABLE UNDER ANY LEGAL THEORY FOR
SPECIAL OR CONSEQUENTIAL DAMAGES.SIKA SHALL
NOT BE RESPONSIBLE FOR THE USE OF THIS PRODUCT
IN A MANNER TO INFRINGE ON ANY PATENT OR ANY
OTHER INTELLECTUAL PROPERTY RIGHTS HELD BY OTH-
ERS.
Sale of SIKA products are subject to the Terms and Con-
ditions of Sale which are available at
https://usa.sika.com/en/group/SikaCorp/termsandcon-
ditions.html or by calling 201-933-8300.
•
Sika Corporation Sika Canada Inc. Sika Mexicana S.A.de C.V.
201 Polito Avenue 601 Delmar Avenue Carretera Libre Celaya Km.8.5
Lyndhurst,NJ 07071 Pointe Claire Fracc.Industrial Balvanera
Phone:800-933-7452 Quebec H9R 4A9 Corregidora,Queretaro
Fax:201-933-6225 Phone:514-697-2610 C.P.76920
Fax:514-694-2792 Phone:52442 2385800
Fax:52 442 2250537
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�FMBER SikaQuick-1000-en-US-(11-2018)-1-5.pdf
Product Data Sheet
SikaQuick°-1000
November 2018,Version 01.05
020302040040000011
• _
BUILDING TRUST t
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co
SikaQuick 1000 (APL Product)
by Sika Corporation (Manufacturer Website)
Active APL Certifications
• 930-008-004 (Approval Date: 4/13/2010) (Service Life Expectancy: )
Previous APL Numbers
S930-0804
Product Types
• Predominately Horizontal Surfaces Rapid Hardening
Resource Links
• FDOT Standard Specifications for Road and Bridge Construction
Random Sampling Frequency
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Limitations
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Documents
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Comments
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Manufacturer Detail
Sika Corporation
201 Polito Ave
Lyndhurst NJ 07071
201-508-6865
Contacts
Report Product Deficiency
Other products in'product type Predominately Horizontal Surfaces Rapid Hardening