S05 RFI Answer.pdf

Introduction of Transmittal

Date: 10/08/12

To : Attn :

Project :

Requested by :

The following document has been produced to meet and/or exceed the the specifications presented to Chandler Concrete Company, Inc. by a party of the contractor pertaining to the project named above.

Chandler Concrete Company, Inc. considers the enclosed "Mix Design Submittal " and all information contained within it to be proprietary and confidential. The following information should only be disclosed to those directly involved with the project specified herein.

Thank you for your consideration and please feel free to call if there are any questions with respect to the following information.

**This information is being submitted for your approval.

Please return an approved submittal at your earliest convenience.

* Please place Chandler Concrete Co., Inc. on the distribution list for concrete test reports. *

Respectfully, Chandler Concrete Company, Inc.

Phone:

Fax:

8545 Edgeworth Drive Capital Heights, MD 20743

George R. Kuhn, Jr.

540-382-1734 540-381-0564

Technical Services Manager - Virginia

Nick Polizzi

VA Medical Fence Job

Long Fence Company

Mix Design Submittal

Letter of Transmittal Date: 10/08/12

To : Attn :

Project :

We are pleased to provide you the concrete mix design for the above referenced project. This mix design submittal has been prepared in accordance to ACI 301, ACI 318, and project specifications. Attached, you will the results of test results representing strength tests according to ACI 318; "Trial Mix Method".

The proposed mixes for this project has been determined based on the "Water- Cement Ratio vs. Strength" graphs.

For proposed mix proportions, please reference the following mix ID:

Mix Strength Type

C30NF 3000 psi no air

Nick Polizzi

Capital Heights, MD 20743

Long Fence Company 8545 Edgeworth Drive

VA Medical Fence Job

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6071 Catawba Rd.

Troutville, VA 24175

(540) 992-1501

Cement Type I /II Date: 7/5/2012

Production Period: June

PHYSICAL ANALYSIS

Spec. Result Spec. Result SiO2 .................. A 20.19 Air content 12 max. 8.2 Al2O3.................. 6.0 max. 4.49 Fe2O3................. 6.0 max. 2.92 Fineness(cm2/g) CaO................... A 63.30 Blaine….. 2800 min 3945 MgO.................. 6.0 max. 2.60 %-325 mesh....... 98.2 SO3................... 3.0 max.** 2.98 Vicat Set Time:

Loss on Ignition.. 3.0 max. 1.58 Initial not less than 45 117 Na2O……………. A 0.16 Final not more than 375 237 K2O……………… A 0.82 Autoclave Expansion% 0.8 0.04 Alk Eq…………… A 0.69 Free Lime………. A 1.21

CO2………………. 0.92

Limestone……….. 5.0 max. 2.25 CaCO3 in limestone 70 min. 94.48 Potential Compounds: Compressive Strength:

C3S A 56 7 1 day psi A 2423

CHEMICAL ANALYSIS

Standard Requirements ASTM C150 Tables 1 and 3 www.roanoke-cement.com

C3S............... A 56.7 1 day..…psi A 2423 C2S.............. A 15.1 3 day.....psi 1740 4159 C3A............... 8 max. 6.9 7 day.....psi 2760 4981 C4AF………… A 8.9 28 day (Previous)....psi A 6223 C3S + 4.75C3A 100 max. 90 A= Not applicable ** By ASTM C-563, SO3 target at 3.2%. Cement meets ASTM C-1038 for SO3 at 3.8% or lower.

The test results shown above were obtained by our mill laboratory on the cement sampled during production. We certify that the above described cement complies with the requirements of ASTM C150-09 for Type I and Type II portland cement and AASHTO M85-10 for Type I and Type II portland cement. This cement also meets the standard requirements for ASTM C150-09 for Type II(MH). This cement may contain up to 5% limestone.

Bryan G. Pittenger Quality Control Manager

Roanoke Cement Laboratory is accredited by AAP.

Accreditation is limited to the laboratory and the standards for which the laboratory is accredited.

www.roanoke-cement.com

ROCKYDALE QUARRIES CORPORATION

TEST RESULTS #57

TEST #: R57-10-03 RESULTS: PASSED!

DATE: March 8, 2011 WEEK# 9

DATE PULLED: 3/4/2011

REMARKS:

SEIVE WEIGHT PER CENT PER CENT SPECIFICATIONS

SIZE GRAMS RETAINED PASSING

-37.5mm+25.0mm

-11/2+1 0 0.0% 100.0% 100% PASSED!

-25.0mm+19.0mm

-1+3/4 801.4 16.8% 100.0% 95-100% PASSED!

-19.0mm+12.5mm -3/4+1/2 2299.3 48.2% 83.2%

-12.5mm+9.5mm

-1/2+3/8 1163.5 24.4% 35.1% 25-60% PASSED!

-9.5mm+4.75mm -3/8+#4 424.2 8.9% 10.7%

-4.75mm+2.36mm

-#4+#8 23.2 0.5% 1.8% 0-10% PASSED!

-2.36mm+0.075mm

-#8+#200 4756.4 0.9% 1.3% 0-5% PASSED!

-0.075mm

-#200 0.4% 0-1.5% PASSED!

TOTAL 4775

4798 8/9

ROCKYDALE QUARRIES CORPORATION

TEST RESULTS

GRADE B SAND OR CLASSIFIER SCREENINGS

TEST #: R11B-11-04C RESULTS: PASSED!

DATE: *03/09/11 WEEK #: *9

DATE PULLED: *03/07/11

REMARKS:

FOR GEORGE KUHN @ CHANDLER

MILLIMETERS

INCHES

SIEVE WEIGHT PERCENT PERCENT SPECIFICATIONS

SIZE GRAMS RETAINED PASSING

-9.5mm+4.75mm

-3/8+#4 0.0 0.0% 100.0% 100% PASSED!

-4.75mm+2.36mm

-#4+#8 72.9 16.1% 100.0% 94-100% PASSED!

-2.36mm+1.18mm -#8+#16 232.9 51.5% 83.9%

-1.18mm+0.600mm -#16+#30 340.1 75.3% 48.5%

-0.600mm+0.300mm -#30+#50 394.3 87.3% 24.7%

-0.300mm+0.150mm -#50+#100 424.1 93.8% 12.7%

-0.150mm+0.075mm

-#100+#200 429.2 95.0% 6.2% 0-10% PASSED!

-0.075mm

-#200 430.20 5.0% 0-7% PASSED!

TOTAL 451.9

WET WEIGHT

456.4

HQ: 3015 DUMBARTON ROAD RICHMOND, VA 23228 USA T 804.264.2701 F 804.264.1202 www.fandr.com

VIRGINIA • NORTH CAROLINA • SOUTH CAROLINA • MARYLAND • DISTRICT OF COLUMBIA

A Woman-Owned Business

Engineering Stability Since 1881

1734 Seibel Drive, NE Roanoke, Virginia 24012-5624 I USA

T 540.344.7939 I F 540.344.3657

Record No: 62M-0560 March 11, 2011

Castle Sand Company 2832 Fairway Forest Circle Salem, VA 24153

Attention: Mr. Robert Lindsey (robertlindsey@castlesands.com )

Subject: Castle Sand Laboratory Testing

Dear Mr. Lindsey, As requested, Froehling & Robertson, Inc. (F&R) is providing laboratory testing services for the above referenced project. The purpose of this letter is to summarize our laboratory results for two samples of Castle Sand that was provided to our laboratory by Castle Sand Company. The two samples were identified as “Natural Sand”, and “Fine Screened Natural Sand”. The tests performed on both samples included a particle size gradation (ASTM C136), and specific gravity and absorption (ASTM C128).

The same set of tests was performed by F&R Roanoke in 2008 on two samples of Natural Sand. In addition, an ASTM C270 mortar mix design was also performed on this sand. Castle Sand Company has requested that we comment on the applicability of the 2008 mix design to the present sample of Natural Sand, based upon a comparison of the 2008 and the present laboratory results for particle size gradation (ASTM C136) and specific gravity and absorption (ASTM C128).

A tabular comparison of the results from 2008 and present is provided as an attachment to this letter.

The gradations and material properties for the 2008 and 2011 samples of Natural Sand are reasonably similar. It is, therefore, our opinion that the present sample of Natural Sand, when utilized in a masonry mortar mix that utilizes proportions in accordance with the 2008 mix design, is expected to provide an ASTM C270-compliant mortar. We recommend that the mortar be tested in accordance with ASTM C780 prior its utilization in construction in order to confirm the conformance of material properties to project needs and code requirements.

We appreciate the opportunity to be of service to you. If you have any questions concerning this report please do not hesitate to contact us.

Sincerely yours, FROEHLING & ROBERTSON, INC.

Gary C. Pasquarell, Ph.D., P.E. Hoyt B. Alford III, P.E.

Construction Services Manager Senior Engineer

Attachment: Laboratory Results Comparison mailto:robertlindsey@castlesands.com

Castle Sand Company Laboratory Testing F&R Project No.: 62M-0560 March 11, 2011 2

Castle Sand Laboratory Results: 2008 and 2011 Samples

2011 2011 2008 2008

Fine Screened Natural Sand

Natural 1 Sand

103682 Natural 1

Sand

103682B Natural 1

Sand

Sieve Size Percent Passing, (%)

Percent Passing, (%)

Percent Passing, (%)

Percent Passing, (%)

3/4” 100 100 100 100 1/2” 100 100 100 100 3/8” 100 100 100 100 #4 100 100 100 100 #8 100 98 99 99

#16 96 94 97 97 #30 82 80 89 88 #50 29 24 23 23

#100 2 1 0 1 #200 0.3 0.4 0.2 0.7

FM = 1.917 2.025 1.910 1.924

Bulk SG (oven) = 2.590 2.580 2.510 2.522 Bulk SG (SSD) = 2.610 2.600 2.540 2.552 Apparent SG = 2.640 2.640 2.586 2.600 Absorption = 0.80 0.80 1.16 1.18

1Note: “Natural Sand” is also referred to as “Regular Sand”.

Description

Applications Recommended fo use in:

n Prestressed concrete n Precast concrete n Reinforced concrete n Shotcrete

n Pumped concrete n 4x4™ Concrete n Pervious Concrete

(SCC)

Features n Reduced water content required for a given workability n Normal setting characteristics

Benefits n Improved workability n Reduced segregation n Superior finishing characteristics for flatwork and cast surfaces n Increased compressive and flexural strength

Setting Time Mix Design Initial Set (h:min) Difference (h:min)

Plain Concrete 5:20 REF

Pozzolith 322 N admixture @

3 fl oz/cwt (195 mL/100 kg) 5:15 -0:05

5 fl oz/cwt (325 mL/100 kg) 5:40 +0:20

7 fl oz/cwt (460 mL/100 kg) 6:20 +1:00

Compressive Strength 7 Days 28 Days

Mix Design psi MPa % psi MPa %

Plain Concrete 2150 14.8 100 3070 21.2 100

Pozzolith 322 N admixture @

3 fl oz/cwt (195 mL/100 kg) 2820 19.4 131 3970 27.4 129

5 fl oz/cwt (325 mL/100 kg) 3160 21.8 147 4100 28.3 134

7 fl oz/cwt (460 mL/100 kg) 3190 22.0 148 4390 30.3 143

Note: The data shown is based on controlled laboratory tests. Reasonable variations from the results shown here may be experienced as a result of differences in concrete-making materials and jobsite conditions.

ingredients.

pressurized air for agitation.

Packaging

Related Documents

Material Safety Data Sheets: Pozzolith 322 N admixture.

The Admixture Systems business of BASF Construction Chemicals is a leading provider of innovative additives for specialty concrete used in the ready mix, precast, manufactured concrete products, underground construction and paving markets throughout the NAFTA region. The Company’s respected Master Builders brand products are used to improve the placing, pumping, finishing, appearance and performance characteristics of concrete.

Product Data: POZZOLITH® 322 N

www.masterbuilders.com

® Construction Research & Technology GMBH

© BASF Construction Chemicals, LLC 2007 n Printed in USA n 03/07 n LIT # 1016972

Description GLENIUM® 7500 high-range water-reducing admixture is based on the next generation of polycarboxylate technology found in all of the Glenium 7000 series products. This technology combines state-of-the-art molecular engineering with a precise understanding of regional cements to provide specific and exceptional value to all phases of the concrete construction process.

GLENIUM 7500 admixture is very effective in producing concrete mixtures with different levels of workability including applications that require self-consolidating concrete (SCC). The use of GLENIUM 7500 admixture results in faster setting characteristics as well as improved early age compressive strength.

GLENIUM 7500 admixture meets ASTM C 494/C 494M compliance requirements for Type A, water-reducing, and Type F, high-range water-reducing, admixtures.

Applications Recommended for use in:

n Concrete with varying water reduction requirements (5-40%) n Concrete where control of workability and setting time is critical n Concrete where high flowability, increased stability, high early and ultimate strengths, and improved durability are needed n Production of Rheodynamic® Self- Consolidating Concrete (SCC) mixtures n 4x4™ Concrete for fast-track construction n Pervious Concrete mixtures

GLENIUM® 7500

High-Range Water-Reducing Admixture

Features n Excellent early strength development n Controls setting characteristics n Optimizes slump retention/setting relationship n Consistent air entrainment n Dosage flexibility

Benefits n Faster turnover of forms due to accelerated early strength development n Reduces finishing labor costs due to optimized set times n Use in fast track construction n Minimizes the need for slump adjustments at the jobsite n Less jobsite QC support required n Fewer rejected loads n Optimizes concrete mixture costs

Performance Characteristics Concrete produced with GLENIUM 7500 admixture achieves significantly higher early age strength than first generation polycarboxylate high-range water-reducing admixtures. GLENIUM 7500 admixture also strikes the perfect balance between workability retention and setting characteristics in order to provide efficiency in placing and finishing concrete.

Guidelines for Use Dosage: GLENIUM 7500 admixture has a recommended dosage range of 2-15 fl oz/cwt (130-975 mL/100 kg) of cementitious materials. For most applications, dosages in the range of 5-8 fl oz/cwt (325-520 mL/100 kg) will provide excellent performance. For high performance and Rheodynamic Self-Consolidating Concrete mixtures, dosages of up to 12 fl oz/cwt (780 mL/100 kg) of cementitious materials can be utilized. Because of variations in concrete materials, jobsite conditions and/or applications, dosages outside of the recommended range may be required. In such cases, contact your local BASF Construction Chemicals representative.

Mixing: GLENIUM 7500 admixture can be added with the initial batch water or as a delayed addition. However, optimum water reduction is generally obtained with a delayed addition.

Product Data 03 30 00 Cast-in-Place Concrete 03 40 00 Precast Concrete 03 70 00 Mass Concrete 04 05 16 Masonry Grouting

Product Notes Corrosivity – Non-Chloride, Non-Corrosive: GLENIUM 7500 admixture will neither initiate nor promote corrosion of reinforcing steel embedded in concrete, prestressing steel or of galvanized steel floor and roof systems. Neither calcium chloride nor other chloride-based ingredients are used in the manufacture of GLENIUM 7500 admixture.

Compatibility: GLENIUM 7500 admixture is compatible with most admixtures used in the production of quality concrete, including normal, mid-range and high-range water-reducing admixtures, air-entrainers, accelerators, retarders, extended set control admixtures, corrosion inhibitors, and shrinkage reducers.

Do not use GLENIUM 7500 admixture with admixtures containing beta-naphthalene sulfonate. Erratic behaviors in slump, workability retention and pumpability may be experienced.

Storage and Handling Storage Temperature: GLENIUM 7500 admixture must be stored at temperatures above 40 °F (5 °C). If GLENIUM 7500 admixture freezes, thaw and reconstitute by mechanical agitation.

Shelf Life: GLENIUM 7500 admixture has a minimum shelf life of 6 months. Depending on storage conditions, the shelf life may be greater than stated. Please contact your BASF Construction Chemicals representative regarding suitability for use and dosage recommendations if the shelf life of GLENIUM 7500 admixture has been exceeded.

Packaging GLENIUM 7500 admixture is supplied in 55 gal (208 L) drums, 275 gal (1040 L) totes and by bulk delivery.

Related Documents Material Safety Data Sheets: GLENIUM 7500 admixture.

Additional Information For additional information on GLENIUM 7500 admixture or on its use in developing concrete mixtures with special performance characteristics, contact your BASF Construction Chemicals representative.

The Admixture Systems business of BASF Construction Chemicals is a leading provider of innovative admixtures for specialty concrete used in the ready mix, precast, manufactured concrete products, underground construction and paving markets throughout the North American region.

The Company’s respected Master Builders brand products are used to improve the placing, pumping, finishing, appearance and performance characteristics of concrete.

Product Data: GLENIUM® 7500

BASF Construction Chemicals, LLC Admixture Systems www.masterbuilders.com United States 23700 Chagrin Boulevard, Cleveland, Ohio 44122-5544 n Tel: 800 628-9990 n Fax: 216 839-8821 Canada 1800 Clark Boulevard, Brampton, Ontario L6T 4M7 n Tel: 800 387-5862 n Fax: 905 792-0651

® Construction Research & Technology GMBH

© BASF Construction Chemicals, LLC 2007 n Printed in USA n 03/08 n LIT # 2000025

Description

Placing and finishing

admixtures.

Applications Recommended for use in:

n Prestressed concrete n Precast concrete n Reinforced concrete n Shotcrete

n Pumped concrete n 4x4™ Concrete n Pervious Concrete

Features n Reduced water content required for a given workability n Retarded setting characteristics n Controlled retardation – depending on the addition rate n Dead-load deflection can take place (before concrete sets) in extended pours for bridge decks, cantilevers, nonshored structural elements, etc.

Benefits n Improved workability n Reduced segregation n Superior finishing characteristics for flatwork and cast surfaces n Flexibility in scheduling of placing and finishing operations n Offsets effects of early stiffening during extended delays between mixing and placing n Helps eliminate cold joints

n Increased compressive and flexural strength

temperature (forms, earth, reinforcement, air, etc.) affect the hardening rate of concrete.

At higher temperatures, concrete stiffens more rapidly which may cause problems with placing and finishing. Pozzolith 100 XR admixture retards the set of concrete. Within

ASTM C 494/C 494M Types B and D specifications, Pozzolith 100 XR admixture will develop higher early (24-hour) and ultimate strengths than plain concrete when used within the recommended dosage range and under normal, comparable curing conditions.

When Pozzolith 100 XR admixture is used in heat-cured concrete, the length of the

cycles without sacrificing early or ultimate strengths.

use at a dosage of 3 ± 1 fl oz/cwt (195 ± 65 mL/100 kg) of

ingredients.

admixtures. When used in conjunction with other admixtures, each admixture must be dispensed separately into the mix.

35 °F (2 °C) or above and completely reconstitute by mild mechanical agitation. Do not use pressurized air for agitation.

Packaging Pozzolith 100 XR admixture is supplied in 55 gal (208 L) drums, 275 gal (1040 L) totes and by bulk delivery.

representative.

The Admixture Systems business of BASF Construction Chemicals is a leading provider of innovative additives for specialty concrete used in the ready mix, precast, manufactured concrete products, underground construction and paving markets throughout the NAFTA region. The Company’s respected Master Builders brand products are used to improve the placing, pumping, finishing, appearance and performance characteristics of concrete.

Product Data: POZZOLITH® 100 XR

www.masterbuilders.com United States 23700 Chagrin Boulevard, Cleveland, Ohio 44122-5544 n Tel: 800 628-9990 n Fax: 216 839-8821 Canada 1800 Clark Boulevard, Brampton, Ontario L6T 4M7 n Tel: 800 387-5862 n Fax: 905 792-0651

® Construction Research & Technology GMBH

© BASF Construction Chemicals, LLC 2007 n Printed in USA n 03/07 n LIT # 1016963

Product Data

03 30 00 Cast-in-Place Concrete3 03 40 00 Precast Concrete

Description

requirements.

Applications Recommended for use in:

l Reinforced, precast, pumped, flowable, lightweight or

l Concrete placed on galvanized steel floor and roof systems which are left in place l Prestressed concrete l Fast-track concrete construction l Concrete subject to chloride ion constraints l 4x4™ Concrete

(SCC)

l Pervious Concrete

Features l Accelerated setting time across a wide range of temperatures l Increased early compressive and flexural strength

Benefits l Earlier finishing of slabs — reduced labor costs l Reduced in-place concrete costs l Reduced or eliminated heating and protection time in cold weather l Earlier stripping and reuse of forms l Superior finishing characteristics for flatwork and cast surfaces

concrete temperature 74 °F (23 °C); ambient temperature 50 and 75 °F (10 and 24 °C);

Non-air-entrained concrete.

Setting time Mix @ 50 °F (10 °C) Initial Set (h:min) Difference (h:min))

Plain 13:44 REF

Pozzolith NC 534 admixture @

20 fl oz/cwt (1300 mL/100 kg) 7:11 - 6:33

40 fl oz/cwt (2600 mL/100 kg) 6:05 - 7:39

Mix @ 75 °F (24 °C)

Plain 8:18 REF

Pozzolith NC 534 admixture @

20 fl oz/cwt (1300 mL/100 kg) 4:59 - 3:19

40 fl oz/cwt (2600 mL/100 kg) 4:18 - 4:00

fl oz/cwt (0.65 – 2.9 L/100 kg) of cementitious materials for most concrete mixtures using average concrete ingredients. Because of variations in job conditions and concrete materials, dosage rates other than the recommended amounts may be required. In such cases, contact your BASF Construction Chemicals representative.

The maximum dosage of Pozzolith NC 534 in potable water applications that require the use of NSF Certified products is 30 fl oz/cwt (2.0 L/kg) of cementitious materials. For specialty concrete mixtures such as 4x4™ Concrete, dosages up to 100 fl oz/cwt (6.5 L/100 kg) may be required.

Compatibility: Pozzolith NC 534 admixture may be used in combination with any BASF Construction Chemicals admixture. When used in conjunction with other admixtures, each admixture must be dispensed separately into the mix.

Storage and Handling Storage Temperature: Store at 5 °F (-15 °C) or above. If Pozzolith NC 534 admixture freezes, thaw at 35 °F (2 °C) or above and completely reconstitute by mild mechanical agitation. Do not use pressurized air for agitation.

life may be greater than stated. Please contact your BASF Construction Chemicals representative regarding suitability for use and dosage recommendations if the shelf life of Pozzolith NC 534 admixture has been exceeded.

Packaging This product is supplied in 55 gal (208 L) drums, 275 gal (1040 L) totes and by bulk delivery.

The Admixture Systems business of BASF Construction Chemicals is a leading provider of innovative admixtures for specialty concrete used in the ready mix, precast, manufactured concrete products, underground construction and paving markets throughout the North American region.

The Company’s respected Master Builders brand products are used to improve the placing, pumping, finishing, appearance and performance characteristics of concrete.

Product Data: POZZOLITH® NC 534

www.masterbuilders.com United States 23700 Chagrin Boulevard, Cleveland, Ohio 44122-5544 l Tel: 800 628-9990 l Fax: 216 839-8821

Canada 1800 Clark Boulevard, Brampton, Ontario L6T 4M7 l Tel: 800 387-5862 l Fax: 905 792-0651

® Construction Research & Technology GMBH